diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.c b/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.c
new file mode 100644
index 0000000..51abf17
--- /dev/null
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.c
@@ -0,0 +1,55 @@
+#include "encode.h"
+
+void GEI_BUTTON_CODE(button *bt)
+{
+    #define t 500 //????(ms)
+    bt->code=0;
+    if(HAL_GPIO_ReadPin(bt->GPIOx,bt->GPIO_Pin)==0)
+    {
+        if(bt->lock==0)
+        {
+            if(HAL_GetTick()<bt->time+t)//??????????
+            {
+            	bt->times++;
+            	bt->time=HAL_GetTick();
+            	bt->lock=1;
+
+            }else
+            {
+            	bt->times=1;             //??????
+            	bt->time=HAL_GetTick();
+            	bt->lock=1;
+            }
+
+        }
+        if(bt->lock==1)
+        {
+            if(HAL_GetTick()>bt->time+t)//??????t ms
+            {
+            	bt->code=255;
+            	bt->times=255;
+            }                  //????
+        }
+
+    }
+
+    if(HAL_GPIO_ReadPin(bt->GPIOx,bt->GPIO_Pin)==1)
+    {
+        if(bt->lock==1)
+        {
+            if(bt->code==255)
+            {
+
+            }else
+            {
+            	bt->code=bt->times;
+            }
+            bt->lock=0;
+        }
+
+    }
+
+
+
+}
+
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.h b/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.h
new file mode 100644
index 0000000..f7e4934
--- /dev/null
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/encode.h
@@ -0,0 +1,26 @@
+#ifndef ENCODER_H_
+#define ENCODER_H_
+
+#include "main.h"
+
+
+
+typedef struct button
+{
+	uint16_t  code;
+	uint8_t   lock;
+	uint32_t  time;
+	uint16_t  times;
+	GPIO_TypeDef *GPIOx;
+	uint16_t GPIO_Pin;
+} button;
+
+typedef struct
+{
+	int  code;
+	uint8_t   move_flag:1;
+} encoder;
+
+void GEI_BUTTON_CODE(button *bt);
+
+#endif /* ENCODER_H_ */
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
index c345c31..373e95b 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
@@ -5,7 +5,7 @@
  *      Author: wuwen
  */
 #include "mymain.h"
-#include "hread_interface.h"
+
 
 #define morse_t1 150
 #define morse_t2 (morse_t1*3)
@@ -166,8 +166,12 @@ char getmorsecode(uint8_t len,uint8_t code)
 	return 0;
 }
 
+
+button  B1;
+
 void mymain()
 {
+	int mode=0;
 	uint32_t run_tick=0;
 	char str[16];
 	uint16_t fps=0,fps_=0;
@@ -175,24 +179,35 @@ void mymain()
 	OLED_Init();
 	
 	HAL_TIM_PWM_Start(&htim2,TIM_CHANNEL_3);//启动n通道的pwm
-	MUTE(0);
+	MUTE(1);
 	//add_a_note(1000,50,1000);
+	
+	
 	while(1)
 	{
 		
-		OLED_Str(0,0,16,"hello",1);
+		switch(mode)
+		{
+			case 0:
+				//启动跳转模式
+				//用于读取系统配置后跳转到其他程序
 			
-		OLED_AL(10,20,10,21,1);
+				mode=1;
+				break;
+			case 1:
+				//主界面
+				fps_++;
+				sprintf(str,"FPS:%d",fps);
+				OLED_Str(0,56,8,str,1);
+				break;
+			case 2:
+				//菜单界面
+				break;
 		
-		OLED_AL(20,50,20,49,1);
+		}
+
 		
-		OLED_AL(20,50,30,50,1);
 		
-		OLED_AL(50,30,30,30,1);
-		
-		fps_++;
-		sprintf(str,"FPS:%d",fps);
-		OLED_Str(0,56,8,str,1);
 		
 		OLED_Cache_to_hardware();//刷新屏幕
 		buzzer_play_server();
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.h b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.h
index 0f0c962..a0d0570 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.h
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.h
@@ -11,7 +11,8 @@
 #include "main.h"
 #include "oled.h"
 #include "buzzer.h"
-
+#include "encode.h"
+#include "hread_interface.h"
 struct morsecode
 {
 	uint8_t len;
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
index 0af8e3f..0547b4f 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
@@ -138,10 +138,10 @@ void OLED_Cache_to_hardware()
 				if(b==0){b=1;OLED_Set_Pos(x,y);}			
 				OLED_WrDat(OLED_buff[y][x]);			
 				OLED_speedup[y][x]=OLED_buff[y][x];
-				OLED_buff[y][x]=0x00;
+				
 			}else
 			{b=0;}
-			
+			OLED_buff[y][x]=0x00;
 		}
 	}
 }
@@ -1033,10 +1033,15 @@ void OLED_VL(unsigned char x,unsigned char y,unsigned char size,unsigned char do
 void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type)
 {
 
-	int dx,dy;
+	int dx,dy,absx,absy;
 	
+	//计算差
 	dx=ex-sx;
 	dy=ey-sy;
+	//取绝对值 就是轴长
+	absx=dx<0?0-dx:dx;
+	absy=dy<0?0-dy:dy;
+	
 	
 	if(dx==0)
 	{
@@ -1046,7 +1051,7 @@ void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type)
 			{
 				OLED_set_dot(sx,y,dot_type);
 			}
-		}
+		}else 
 		if(dy<0)
 		{
 			for(int y=ey;y<sy;y++)
@@ -1066,7 +1071,7 @@ void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type)
 			{
 				OLED_set_dot(x,sy,dot_type);
 			}
-		}
+		}else
 		if(dx<0)
 		{
 			for(int x=ex;x<sx;x++)
@@ -1086,6 +1091,19 @@ void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type)
 }
 
 
+/*画方框*/
+void OLED_square(int Start_x, int Start_y, int End_x, int End_y, char type)
+{
+	if(Start_x > End_x){int i1 = Start_x; Start_x = End_x; End_x=i1;}
+	if(Start_y > End_y){int i1 = Start_y; Start_y = End_y; End_y=i1;}
+	for(; Start_x < End_x ; Start_x++)
+	{
+		for(int y2 = Start_y ; y2 < End_y ; y2++)
+		{
+			OLED_set_dot(Start_x, y2, type);
+		}
+	}
+}
 
 
 
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
index 835a27f..926d8df 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
@@ -28,4 +28,6 @@ void OLED_Ascii(unsigned char x,unsigned char y,unsigned char size,char chr,unsi
 void OLED_Str(unsigned char x,unsigned char y,unsigned char size,char *str,unsigned char type);
 
 void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type);
+
+void OLED_square(int Start_x, int Start_y, int End_x, int End_y, char type);
 #endif /* OLED_H_ */
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.kevin b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.kevin
index 3b97d34..48a1f53 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.kevin
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.kevin
@@ -101,17 +101,17 @@
         <yPos>-1</yPos>
       </MaxPosition>
       <NormalPosition>
-        <Top>150</Top>
-        <Left>2151</Left>
-        <Right>3176</Right>
-        <Bottom>675</Bottom>
+        <Top>461</Top>
+        <Left>1932</Left>
+        <Right>2957</Right>
+        <Bottom>986</Bottom>
       </NormalPosition>
     </WindowPosition>
     <MDIClientArea>
       <RegID>0</RegID>
       <MDITabState>
-        <Len>596</Len>
-        <Data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ata>
+        <Len>920</Len>
+        <Data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ata>
       </MDITabState>
     </MDIClientArea>
     <ViewEx>
@@ -134,7 +134,7 @@
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
-          <Data>AE00000066000000F1030000CA000000</Data>
+          <Data>040600006600000047090000CA000000</Data>
         </RectRecentFloat>
       </Window>
       <Window>
@@ -530,7 +530,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000009903000053050000CD030000</Data>
+          <Data>03000000990300007D070000CD030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1150,7 +1150,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000A70000002D020000</Data>
+          <Data>0300000066000000A700000065030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1170,7 +1170,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000009903000053050000CD030000</Data>
+          <Data>03000000990300007D070000CD030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1190,7 +1190,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000009903000053050000CD030000</Data>
+          <Data>03000000990300007D070000CD030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1250,7 +1250,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000009903000053050000CD030000</Data>
+          <Data>03000000990300007D070000CD030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1270,7 +1270,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000009903000053050000CD030000</Data>
+          <Data>03000000990300007D070000CD030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1799,7 +1799,7 @@
       </Window>
       <DockMan>
         <Len>3312</Len>
-        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+        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       </DockMan>
       <ToolBar>
         <RegID>59392</RegID>
@@ -1862,19 +1862,19 @@
     <ActiveMDIGroup>0</ActiveMDIGroup>
     <MDIGroup>
       <Size>100</Size>
-      <ActiveTab>2</ActiveTab>
+      <ActiveTab>0</ActiveTab>
       <Doc>
         <Name>.\MYDEIVERS\mymain.c</Name>
-        <ColumnNumber>20</ColumnNumber>
-        <TopLine>156</TopLine>
-        <CurrentLine>191</CurrentLine>
+        <ColumnNumber>2</ColumnNumber>
+        <TopLine>149</TopLine>
+        <CurrentLine>185</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
       </Doc>
       <Doc>
         <Name>.\MYDEIVERS\buzzer.c</Name>
-        <ColumnNumber>6</ColumnNumber>
+        <ColumnNumber>8</ColumnNumber>
         <TopLine>49</TopLine>
         <CurrentLine>75</CurrentLine>
         <Folding>1</Folding>
@@ -1883,18 +1883,45 @@
       </Doc>
       <Doc>
         <Name>.\MYDEIVERS\oled.c</Name>
-        <ColumnNumber>12</ColumnNumber>
-        <TopLine>1046</TopLine>
-        <CurrentLine>1078</CurrentLine>
+        <ColumnNumber>27</ColumnNumber>
+        <TopLine>106</TopLine>
+        <CurrentLine>144</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
       </Doc>
       <Doc>
         <Name>./MYDEIVERS/oled.h</Name>
-        <ColumnNumber>37</ColumnNumber>
+        <ColumnNumber>16</ColumnNumber>
         <TopLine>1</TopLine>
-        <CurrentLine>30</CurrentLine>
+        <CurrentLine>32</CurrentLine>
+        <Folding>1</Folding>
+        <ContractedFolders></ContractedFolders>
+        <PaneID>0</PaneID>
+      </Doc>
+      <Doc>
+        <Name>C:\Users\kevin\Desktop\morse_code_trainer\f103c8t6_keil\MDK-ARM\MYDEIVERS\encode.c</Name>
+        <ColumnNumber>32</ColumnNumber>
+        <TopLine>1</TopLine>
+        <CurrentLine>3</CurrentLine>
+        <Folding>0</Folding>
+        <ContractedFolders></ContractedFolders>
+        <PaneID>0</PaneID>
+      </Doc>
+      <Doc>
+        <Name>MYDEIVERS\encode.h</Name>
+        <ColumnNumber>0</ColumnNumber>
+        <TopLine>1</TopLine>
+        <CurrentLine>25</CurrentLine>
+        <Folding>0</Folding>
+        <ContractedFolders></ContractedFolders>
+        <PaneID>0</PaneID>
+      </Doc>
+      <Doc>
+        <Name>./MYDEIVERS/mymain.h</Name>
+        <ColumnNumber>16</ColumnNumber>
+        <TopLine>1</TopLine>
+        <CurrentLine>14</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf
index 707ef9e..50f7c61 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.build_log.htm b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.build_log.htm
index b147592..6ce321d 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.build_log.htm
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.build_log.htm
@@ -27,14 +27,22 @@ Project File Date:  04/19/2022
 <h2>Output:</h2>
 *** Using Compiler 'V5.06 update 7 (build 960)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
 Build target 'f103c8t6_KEIL'
-compiling oled.c...
+compiling mymain.c...
 MYDEIVERS\oled.h(22): warning:  #1295-D: Deprecated declaration OLED_Cache_to_hardware - give arg types
   void OLED_Cache_to_hardware();
-MYDEIVERS\oled.c: 1 warning, 0 errors
+MYDEIVERS\buzzer.h(16): warning:  #1295-D: Deprecated declaration buzzer_play_server - give arg types
+  char buzzer_play_server();
+MYDEIVERS\mymain.h(23): warning:  #1295-D: Deprecated declaration mymain - give arg types
+  void mymain();
+MYDEIVERS\mymain.c(182): warning:  #188-D: enumerated type mixed with another type
+  	MUTE(1);
+MYDEIVERS\mymain.c(200): warning:  #223-D: function "sprintf" declared implicitly
+  				sprintf(str,"FPS:%d",fps);
+MYDEIVERS\mymain.c: 5 warnings, 0 errors
 linking...
-Program Size: Code=9328 RO-data=3712 RW-data=28 ZI-data=3836  
+Program Size: Code=9140 RO-data=3712 RW-data=28 ZI-data=3836  
 FromELF: creating hex file...
-"f103c8t6_KEIL\f103c8t6_KEIL.axf" - 0 Error(s), 1 Warning(s).
+"f103c8t6_KEIL\f103c8t6_KEIL.axf" - 0 Error(s), 5 Warning(s).
 
 <h2>Software Packages used:</h2>
 
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex
index c32ce27..773a2c5 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex
@@ -1,8 +1,8 @@
 :020000040800F2
 :10000000180F0020910100088319000889150008C5
-:1000100081190008E9040008BB1F00080000000067
-:10002000000000000000000000000000131D000898
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+:1000100081190008E9040008371F000800000000EB
+:100020000000000000000000000000008F1C00081D
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 :10004000AB010008AB010008AB010008AB010008E0
 :10005000AB010008AB010008AB010008AB010008D0
 :10006000AB010008AB010008AB010008AB010008C0
@@ -10,23 +10,23 @@
 :10008000AB010008AB010008AB010008AB010008A0
 :10009000AB010008AB010008AB010008AB01000890
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-:1000B000791D0008AB010008AB010008AB01000886
+:1000B000F51C0008AB010008AB010008AB0100080B
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+:10012000F430000014310000103A24BF78C878C1C0
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+:1001700010BD00F084F91146FFF7F7FF01F028FFEA
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@@ -175,7 +175,7 @@
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@@ -196,10 +196,10 @@
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+:100C50000020024000100240A02400080C000020E8
 :100C6000040000200448054900684968044AC1F3AB
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 :100CB0000AD5516804AAC1F34041515C0A4A504325
@@ -257,7 +257,7 @@
 :100FF00001D00120EAE70020E8E7000000100240ED
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@@ -267,7 +267,7 @@
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@@ -281,12 +281,12 @@
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-:1011C0008041816011E0CA684968206800F0D2FE61
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@@ -317,20 +317,20 @@
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+:102E60003C000000000000F86C6666666666666CF2
+:102E7000F8000000000000FE666268786860626624
+:102E8000FE000000000000FE666268786860606016
+:102E9000F00000000000003C66C2C0C0DEC6C6668E
+:102EA0003A000000000000C6C6C6C6FEC6C6C6C6BA
+:102EB000C60000000000003C181818181818181850
+:102EC0003C0000000000001E0C0C0C0C0CCCCCCC08
+:102ED00078000000000000E6666C6C78786C66662E
+:102EE000E6000000000000F0606060606060626604
+:102EF000FE000000000000C6EEFEFED6C6C6C6C636
+:102F0000C6000000000000C6E6F6FEDECEC6C6C65D
+:102F1000C6000000000000386CC6C6C6C6C6C66C37
+:102F200038000000000000FC6666667C606060603F
+:102F3000F00000000000007CC6C6C6C6C6C6D6DECD
+:102F40007C0C0E00000000FC6666667C6C666666A3
+:102F5000E60000000000007CC6C660380C06C6C64D
+:102F60007C0000000000007E7E5A181818181818FF
+:102F70003C000000000000C6C6C6C6C6C6C6C6C61F
+:102F80007C000000000000C6C6C6C6C6C6C66C38B7
+:102F900010000000000000C6C6C6C6C6D6D6FE6C2D
+:102FA0006C000000000000C6C66C6C38386C6CC643
+:102FB000C6000000000000666666663C1818181817
+:102FC0003C000000000000FEC6860C183060C2C63F
+:102FD000FE0000000000003C303030303030303037
+:102FE0003C0000000000000080C0E070381C0E06AD
+:102FF000020000000000003C0C0C0C0C0C0C0C0C33
+:103000003C0000001038386CC600000000000000D2
+:1030100000000000000000000000000000000000B0
+:103020000000FF00303030180000000000000000F9
+:1030300000000000000000000000780C7CCCCCCC2C
+:1030400076000000000000E06060786C66666666EE
+:10305000DC0000000000000000007CC6C0C0C0C64C
+:103060007C0000000000001C0C0C3C6CCCCCCCCCD8
+:10307000760000000000000000007CC6FEC0C0C654
+:103080007C000000000000386C6460F060606060EC
+:10309000F000000000000000000076CCCCCCCCCCCE
+:1030A0007C0CCC78000000E060606C76666666663A
+:1030B000E60000000000001818003818181818184A
+:1030C0003C0000000000000606000E06060606068C
+:1030D0000666663C000000E06060666C78786C66AE
+:1030E000E600000000000038181818181818181802
+:1030F0003C000000000000000000ECFED6D6D6D652
+:10310000D6000000000000000000DC66666666660F
+:10311000660000000000000000007CC6C6C6C6C6EF
+:103120007C000000000000000000DC666666666649
+:103130007C6060F000000000000076CCCCCCCCCCF1
+:103140007C0C0C1E000000000000DC7662606060F9
+:10315000F00000000000000000007CC660380CC6D3
+:103160007C000000000000103030FC303030303681
+:103170001C000000000000000000CCCCCCCCCCCC6B
+:103180007600000000000000000066666666663C8F
+:1031900018000000000000000000C6C6C6D6D6FE1B
+:1031A0006C000000000000000000C66C3838386C6D
+:1031B000C6000000000000000000C6C6C6C6C6C6A5
+:1031C0007E060CF8000000000000FECC183060C63F
+:1031D000FE0000000000000E1818187018181818CB
+:1031E0000E00000000000018181818001818181811
+:1031F00018000000000000701818180E1818181891
+:103200007000000000000076DC00000000000000FC
+:103210000000000034320008000000201C00000004
+:1032200028010008503200081C000020FC0E00009D
+:103230004401000801000000100000000000000030
+:103240000024F40000000000000000000000000066
 :04000005080000ED02
 :00000001FF
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm
index c15b030..a083239 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm
@@ -3,9 +3,9 @@
 <title>Static Call Graph - [f103c8t6_KEIL\f103c8t6_KEIL.axf]</title></head>
 <body><HR>
 <H1>Static Call Graph for image f103c8t6_KEIL\f103c8t6_KEIL.axf</H1><HR>
-<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060960: Last Updated: Wed Apr 20 18:39:59 2022
+<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060960: Last Updated: Thu Apr 21 16:08:22 2022
 <BR><P>
-<H3>Maximum Stack Usage =        224 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)</H3><H3>
+<H3>Maximum Stack Usage =        232 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)</H3><H3>
 Call chain for Maximum Stack Depth:</H3>
 __rt_entry_main &rArr; main &rArr; mymain &rArr; OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 <P>
@@ -104,9 +104,9 @@ Global Symbols
 <BR><BR>[Calls]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_entry
 </UL>
 
-<P><STRONG><a name="[b0]"></a>__scatterload_rt2_thumb_only</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
+<P><STRONG><a name="[af]"></a>__scatterload_rt2_thumb_only</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
 
-<P><STRONG><a name="[b1]"></a>__scatterload_null</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
+<P><STRONG><a name="[b0]"></a>__scatterload_null</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
 
 <P><STRONG><a name="[45]"></a>__scatterload_copy</STRONG> (Thumb, 26 bytes, Stack size unknown bytes, __scatter_copy.o(!!handler_copy), UNUSED)
 <BR><BR>[Calls]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload_copy
@@ -114,7 +114,7 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload_copy
 </UL>
 
-<P><STRONG><a name="[b2]"></a>__scatterload_zeroinit</STRONG> (Thumb, 28 bytes, Stack size unknown bytes, __scatter_zi.o(!!handler_zi), UNUSED)
+<P><STRONG><a name="[b1]"></a>__scatterload_zeroinit</STRONG> (Thumb, 28 bytes, Stack size unknown bytes, __scatter_zi.o(!!handler_zi), UNUSED)
 
 <P><STRONG><a name="[46]"></a>_printf_d</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, _printf_d.o(.ARM.Collect$$_printf_percent$$00000009))
 <BR><BR>[Stack]<UL><LI>Max Depth = 56 + Unknown Stack Size
@@ -127,80 +127,80 @@ Global Symbols
 <BR><BR>[Called By]<UL><LI><a href="#[57]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__printf
 </UL>
 
-<P><STRONG><a name="[b3]"></a>_printf_percent_end</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent_end.o(.ARM.Collect$$_printf_percent$$00000017))
+<P><STRONG><a name="[b2]"></a>_printf_percent_end</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent_end.o(.ARM.Collect$$_printf_percent$$00000017))
 
 <P><STRONG><a name="[4b]"></a>__rt_lib_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit.o(.ARM.Collect$$libinit$$00000000))
 <BR><BR>[Called By]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_entry_li
 </UL>
 
-<P><STRONG><a name="[b4]"></a>__rt_lib_init_alloca_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002E))
+<P><STRONG><a name="[b3]"></a>__rt_lib_init_alloca_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002E))
 
-<P><STRONG><a name="[b5]"></a>__rt_lib_init_argv_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002C))
+<P><STRONG><a name="[b4]"></a>__rt_lib_init_argv_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002C))
 
-<P><STRONG><a name="[b6]"></a>__rt_lib_init_atexit_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001B))
+<P><STRONG><a name="[b5]"></a>__rt_lib_init_atexit_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001B))
 
-<P><STRONG><a name="[b7]"></a>__rt_lib_init_clock_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000021))
+<P><STRONG><a name="[b6]"></a>__rt_lib_init_clock_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000021))
 
-<P><STRONG><a name="[b8]"></a>__rt_lib_init_cpp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000032))
+<P><STRONG><a name="[b7]"></a>__rt_lib_init_cpp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000032))
 
-<P><STRONG><a name="[b9]"></a>__rt_lib_init_exceptions_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000030))
+<P><STRONG><a name="[b8]"></a>__rt_lib_init_exceptions_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000030))
 
-<P><STRONG><a name="[ba]"></a>__rt_lib_init_fp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000002))
+<P><STRONG><a name="[b9]"></a>__rt_lib_init_fp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000002))
 
-<P><STRONG><a name="[bb]"></a>__rt_lib_init_fp_trap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001F))
+<P><STRONG><a name="[ba]"></a>__rt_lib_init_fp_trap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001F))
 
-<P><STRONG><a name="[bc]"></a>__rt_lib_init_getenv_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000023))
+<P><STRONG><a name="[bb]"></a>__rt_lib_init_getenv_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000023))
 
-<P><STRONG><a name="[bd]"></a>__rt_lib_init_heap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000A))
+<P><STRONG><a name="[bc]"></a>__rt_lib_init_heap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000A))
 
-<P><STRONG><a name="[be]"></a>__rt_lib_init_lc_collate_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000011))
+<P><STRONG><a name="[bd]"></a>__rt_lib_init_lc_collate_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000011))
 
-<P><STRONG><a name="[bf]"></a>__rt_lib_init_lc_ctype_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000013))
+<P><STRONG><a name="[be]"></a>__rt_lib_init_lc_ctype_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000013))
 
-<P><STRONG><a name="[c0]"></a>__rt_lib_init_lc_monetary_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000015))
+<P><STRONG><a name="[bf]"></a>__rt_lib_init_lc_monetary_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000015))
 
-<P><STRONG><a name="[c1]"></a>__rt_lib_init_lc_numeric_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000017))
+<P><STRONG><a name="[c0]"></a>__rt_lib_init_lc_numeric_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000017))
 
-<P><STRONG><a name="[c2]"></a>__rt_lib_init_lc_time_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000019))
+<P><STRONG><a name="[c1]"></a>__rt_lib_init_lc_time_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000019))
 
-<P><STRONG><a name="[c3]"></a>__rt_lib_init_preinit_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000004))
+<P><STRONG><a name="[c2]"></a>__rt_lib_init_preinit_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000004))
 
-<P><STRONG><a name="[c4]"></a>__rt_lib_init_rand_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000E))
+<P><STRONG><a name="[c3]"></a>__rt_lib_init_rand_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000E))
 
-<P><STRONG><a name="[c5]"></a>__rt_lib_init_return</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000033))
+<P><STRONG><a name="[c4]"></a>__rt_lib_init_return</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000033))
 
-<P><STRONG><a name="[c6]"></a>__rt_lib_init_signal_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001D))
+<P><STRONG><a name="[c5]"></a>__rt_lib_init_signal_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001D))
 
-<P><STRONG><a name="[c7]"></a>__rt_lib_init_stdio_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000025))
+<P><STRONG><a name="[c6]"></a>__rt_lib_init_stdio_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000025))
 
-<P><STRONG><a name="[c8]"></a>__rt_lib_init_user_alloc_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000C))
+<P><STRONG><a name="[c7]"></a>__rt_lib_init_user_alloc_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000C))
 
 <P><STRONG><a name="[50]"></a>__rt_lib_shutdown</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown.o(.ARM.Collect$$libshutdown$$00000000))
 <BR><BR>[Called By]<UL><LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_exit_ls
 </UL>
 
-<P><STRONG><a name="[c9]"></a>__rt_lib_shutdown_cpp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000004))
+<P><STRONG><a name="[c8]"></a>__rt_lib_shutdown_cpp_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000004))
 
-<P><STRONG><a name="[ca]"></a>__rt_lib_shutdown_fini_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000002))
+<P><STRONG><a name="[c9]"></a>__rt_lib_shutdown_fini_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000002))
 
-<P><STRONG><a name="[cb]"></a>__rt_lib_shutdown_fp_trap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000009))
+<P><STRONG><a name="[ca]"></a>__rt_lib_shutdown_fp_trap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000009))
 
-<P><STRONG><a name="[cc]"></a>__rt_lib_shutdown_heap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000011))
+<P><STRONG><a name="[cb]"></a>__rt_lib_shutdown_heap_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000011))
 
-<P><STRONG><a name="[cd]"></a>__rt_lib_shutdown_return</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000012))
+<P><STRONG><a name="[cc]"></a>__rt_lib_shutdown_return</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000012))
 
-<P><STRONG><a name="[ce]"></a>__rt_lib_shutdown_signal_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000C))
+<P><STRONG><a name="[cd]"></a>__rt_lib_shutdown_signal_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000C))
 
-<P><STRONG><a name="[cf]"></a>__rt_lib_shutdown_stdio_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000006))
+<P><STRONG><a name="[ce]"></a>__rt_lib_shutdown_stdio_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000006))
 
-<P><STRONG><a name="[d0]"></a>__rt_lib_shutdown_user_alloc_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000E))
+<P><STRONG><a name="[cf]"></a>__rt_lib_shutdown_user_alloc_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000E))
 
 <P><STRONG><a name="[43]"></a>__rt_entry</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry.o(.ARM.Collect$$rtentry$$00000000))
 <BR><BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload_rt2
 <LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__main
 </UL>
 
-<P><STRONG><a name="[d1]"></a>__rt_entry_presh_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000002))
+<P><STRONG><a name="[d0]"></a>__rt_entry_presh_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000002))
 
 <P><STRONG><a name="[48]"></a>__rt_entry_sh</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry4.o(.ARM.Collect$$rtentry$$00000004))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8 + Unknown Stack Size
@@ -213,17 +213,17 @@ Global Symbols
 <BR><BR>[Calls]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_lib_init
 </UL>
 
-<P><STRONG><a name="[d2]"></a>__rt_entry_postsh_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000009))
+<P><STRONG><a name="[d1]"></a>__rt_entry_postsh_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000009))
 
 <P><STRONG><a name="[4c]"></a>__rt_entry_main</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000D))
-<BR><BR>[Stack]<UL><LI>Max Depth = 224 + Unknown Stack Size
+<BR><BR>[Stack]<UL><LI>Max Depth = 232 + Unknown Stack Size
 <LI>Call Chain = __rt_entry_main &rArr; main &rArr; mymain &rArr; OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
 <BR>[Calls]<UL><LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 <LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;exit
 </UL>
 
-<P><STRONG><a name="[d3]"></a>__rt_entry_postli_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000C))
+<P><STRONG><a name="[d2]"></a>__rt_entry_postli_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000C))
 
 <P><STRONG><a name="[5c]"></a>__rt_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rtexit.o(.ARM.Collect$$rtexit$$00000000))
 <BR><BR>[Called By]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;exit
@@ -233,7 +233,7 @@ Global Symbols
 <BR><BR>[Calls]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_lib_shutdown
 </UL>
 
-<P><STRONG><a name="[d4]"></a>__rt_exit_prels_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000002))
+<P><STRONG><a name="[d3]"></a>__rt_exit_prels_1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000002))
 
 <P><STRONG><a name="[51]"></a>__rt_exit_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000004))
 <BR><BR>[Calls]<UL><LI><a href="#[52]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_sys_exit
@@ -381,7 +381,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[54]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_heap_descriptor
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delhead
+<BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delhead
 </UL>
 
 <P><STRONG><a name="[55]"></a>__2sprintf</STRONG> (Thumb, 34 bytes, Stack size 32 bytes, noretval__2sprintf.o(.text))
@@ -391,7 +391,7 @@ Global Symbols
 <BR>[Calls]<UL><LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_sputc
 <LI><a href="#[56]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_char_common
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
 <P><STRONG><a name="[57]"></a>__printf</STRONG> (Thumb, 104 bytes, Stack size 24 bytes, __printf.o(.text))
@@ -414,17 +414,17 @@ Global Symbols
 <P><STRONG><a name="[92]"></a>__aeabi_memclr4</STRONG> (Thumb, 0 bytes, Stack size 4 bytes, rt_memclr_w.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 4<LI>Call Chain = __aeabi_memclr4
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[9f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[91]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_TIM2_Init
 </UL>
 
-<P><STRONG><a name="[d5]"></a>__aeabi_memclr8</STRONG> (Thumb, 0 bytes, Stack size 4 bytes, rt_memclr_w.o(.text), UNUSED)
+<P><STRONG><a name="[d4]"></a>__aeabi_memclr8</STRONG> (Thumb, 0 bytes, Stack size 4 bytes, rt_memclr_w.o(.text), UNUSED)
 
-<P><STRONG><a name="[d6]"></a>__rt_memclr_w</STRONG> (Thumb, 78 bytes, Stack size 4 bytes, rt_memclr_w.o(.text), UNUSED)
+<P><STRONG><a name="[d5]"></a>__rt_memclr_w</STRONG> (Thumb, 78 bytes, Stack size 4 bytes, rt_memclr_w.o(.text), UNUSED)
 
-<P><STRONG><a name="[d7]"></a>_memset_w</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rt_memclr_w.o(.text), UNUSED)
+<P><STRONG><a name="[d6]"></a>_memset_w</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, rt_memclr_w.o(.text), UNUSED)
 
-<P><STRONG><a name="[d8]"></a>__use_two_region_memory</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)
+<P><STRONG><a name="[d7]"></a>__use_two_region_memory</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)
 
 <P><STRONG><a name="[1]"></a>__rt_heap_escrow</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)
 
@@ -454,19 +454,19 @@ Global Symbols
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> noretval__2sprintf.o(.text)
 </UL>
-<P><STRONG><a name="[d9]"></a>__user_libspace</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)
+<P><STRONG><a name="[d8]"></a>__user_libspace</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)
 
 <P><STRONG><a name="[5a]"></a>__user_perproc_libspace</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text))
 <BR><BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__user_setup_stackheap
 </UL>
 
-<P><STRONG><a name="[da]"></a>__user_perthread_libspace</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)
+<P><STRONG><a name="[d9]"></a>__user_perthread_libspace</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)
 
-<P><STRONG><a name="[db]"></a>__I$use$semihosting</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)
+<P><STRONG><a name="[da]"></a>__I$use$semihosting</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)
 
-<P><STRONG><a name="[dc]"></a>__use_no_semihosting_swi</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)
+<P><STRONG><a name="[db]"></a>__use_no_semihosting_swi</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)
 
-<P><STRONG><a name="[dd]"></a>__semihosting_library_function</STRONG> (Thumb, 0 bytes, Stack size 8 bytes, indicate_semi.o(.text), UNUSED)
+<P><STRONG><a name="[dc]"></a>__semihosting_library_function</STRONG> (Thumb, 0 bytes, Stack size 8 bytes, indicate_semi.o(.text), UNUSED)
 
 <P><STRONG><a name="[49]"></a>__user_setup_stackheap</STRONG> (Thumb, 74 bytes, Stack size 8 bytes, sys_stackheap_outer.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8 + Unknown Stack Size
@@ -509,12 +509,12 @@ Global Symbols
 <LI><a href="#[8f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 </UL>
 
-<P><STRONG><a name="[a5]"></a>HAL_GPIO_TogglePin</STRONG> (Thumb, 16 bytes, Stack size 0 bytes, stm32f1xx_hal_gpio.o(i.HAL_GPIO_TogglePin))
-<BR><BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<P><STRONG><a name="[a4]"></a>HAL_GPIO_TogglePin</STRONG> (Thumb, 16 bytes, Stack size 0 bytes, stm32f1xx_hal_gpio.o(i.HAL_GPIO_TogglePin))
+<BR><BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
 <P><STRONG><a name="[90]"></a>HAL_GPIO_WritePin</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f1xx_hal_gpio.o(i.HAL_GPIO_WritePin))
-<BR><BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR><BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 <LI><a href="#[8f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 </UL>
 
@@ -524,17 +524,17 @@ Global Symbols
 <LI><a href="#[8c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnMasterAddressFlagUntilTimeout
 <LI><a href="#[62]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnFlagUntilTimeout
 <LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnBTFFlagUntilTimeout
-<LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 <LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_OscConfig
 <LI><a href="#[6e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_ClockConfig
-<LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
+<LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
 </UL>
 
 <P><STRONG><a name="[5d]"></a>HAL_I2C_Init</STRONG> (Thumb, 376 bytes, Stack size 16 bytes, stm32f1xx_hal_i2c.o(i.HAL_I2C_Init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 88<LI>Call Chain = HAL_I2C_Init &rArr; HAL_I2C_MspInit &rArr; HAL_GPIO_Init
 </UL>
-<BR>[Calls]<UL><LI><a href="#[5f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetPCLK1Freq
-<LI><a href="#[5e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_MspInit
+<BR>[Calls]<UL><LI><a href="#[5e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_MspInit
+<LI><a href="#[5f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetPCLK1Freq
 </UL>
 <BR>[Called By]<UL><LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
@@ -542,11 +542,11 @@ Global Symbols
 <P><STRONG><a name="[60]"></a>HAL_I2C_Mem_Write</STRONG> (Thumb, 294 bytes, Stack size 64 bytes, stm32f1xx_hal_i2c.o(i.HAL_I2C_Mem_Write))
 <BR><BR>[Stack]<UL><LI>Max Depth = 128<LI>Call Chain = HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnTXEFlagUntilTimeout
+<BR>[Calls]<UL><LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnTXEFlagUntilTimeout
 <LI><a href="#[62]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnFlagUntilTimeout
 <LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_WaitOnBTFFlagUntilTimeout
 <LI><a href="#[63]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_RequestMemoryWrite
+<LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
 <BR>[Called By]<UL><LI><a href="#[8e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;IIC_SAND_DATE
 </UL>
@@ -559,7 +559,7 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[5d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Init
 </UL>
 
-<P><STRONG><a name="[9f]"></a>HAL_IncTick</STRONG> (Thumb, 12 bytes, Stack size 0 bytes, stm32f1xx_hal.o(i.HAL_IncTick))
+<P><STRONG><a name="[9e]"></a>HAL_IncTick</STRONG> (Thumb, 12 bytes, Stack size 0 bytes, stm32f1xx_hal.o(i.HAL_IncTick))
 <BR><BR>[Called By]<UL><LI><a href="#[11]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SysTick_Handler
 </UL>
 
@@ -609,11 +609,11 @@ Global Symbols
 <P><STRONG><a name="[6e]"></a>HAL_RCC_ClockConfig</STRONG> (Thumb, 280 bytes, Stack size 32 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_ClockConfig))
 <BR><BR>[Stack]<UL><LI>Max Depth = 64<LI>Call Chain = HAL_RCC_ClockConfig &rArr; HAL_InitTick &rArr; HAL_NVIC_SetPriority
 </UL>
-<BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetSysClockFreq
+<BR>[Calls]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetSysClockFreq
 <LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
+<LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[9f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
 <P><STRONG><a name="[5f]"></a>HAL_RCC_GetPCLK1Freq</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq))
@@ -631,7 +631,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[9f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
 <P><STRONG><a name="[6b]"></a>HAL_SYSTICK_Config</STRONG> (Thumb, 40 bytes, Stack size 8 bytes, stm32f1xx_hal_cortex.o(i.HAL_SYSTICK_Config))
@@ -692,13 +692,13 @@ Global Symbols
 <P><STRONG><a name="[7a]"></a>HAL_TIM_IRQHandler</STRONG> (Thumb, 358 bytes, Stack size 16 bytes, stm32f1xx_hal_tim.o(i.HAL_TIM_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = HAL_TIM_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[7e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PeriodElapsedCallback
-<LI><a href="#[7d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PWM_PulseFinishedCallback
-<LI><a href="#[7c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_OC_DelayElapsedCallback
+<BR>[Calls]<UL><LI><a href="#[7c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_OC_DelayElapsedCallback
 <LI><a href="#[7b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_IC_CaptureCallback
 <LI><a href="#[81]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIMEx_CommutCallback
 <LI><a href="#[7f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIMEx_BreakCallback
 <LI><a href="#[80]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_TriggerCallback
+<LI><a href="#[7e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PeriodElapsedCallback
+<LI><a href="#[7d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PWM_PulseFinishedCallback
 </UL>
 <BR>[Called By]<UL><LI><a href="#[2e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM2_IRQHandler
 </UL>
@@ -729,8 +729,8 @@ Global Symbols
 <P><STRONG><a name="[88]"></a>HAL_TIM_PWM_Init</STRONG> (Thumb, 90 bytes, Stack size 8 bytes, stm32f1xx_hal_tim.o(i.HAL_TIM_PWM_Init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 28<LI>Call Chain = HAL_TIM_PWM_Init &rArr; TIM_Base_SetConfig
 </UL>
-<BR>[Calls]<UL><LI><a href="#[89]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PWM_MspInit
-<LI><a href="#[73]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM_Base_SetConfig
+<BR>[Calls]<UL><LI><a href="#[73]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM_Base_SetConfig
+<LI><a href="#[89]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PWM_MspInit
 </UL>
 <BR>[Called By]<UL><LI><a href="#[91]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_TIM2_Init
 </UL>
@@ -748,7 +748,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[8b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM_CCxChannelCmd
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
 <P><STRONG><a name="[7e]"></a>HAL_TIM_PeriodElapsedCallback</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_hal_tim.o(i.HAL_TIM_PeriodElapsedCallback))
@@ -771,8 +771,8 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[60]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Mem_Write
 </UL>
-<BR>[Called By]<UL><LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[9c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Called By]<UL><LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
 
 <P><STRONG><a name="[b]"></a>MemManage_Handler</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.MemManage_Handler))
@@ -789,92 +789,83 @@ Global Symbols
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[94]"></a>OLED_AL</STRONG> (Thumb, 130 bytes, Stack size 32 bytes, oled.o(i.OLED_AL))
-<BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = OLED_AL &rArr; OLED_set_dot
-</UL>
-<BR>[Calls]<UL><LI><a href="#[95]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_set_dot
-</UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
-</UL>
-
-<P><STRONG><a name="[96]"></a>OLED_Ascii</STRONG> (Thumb, 92 bytes, Stack size 20 bytes, oled.o(i.OLED_Ascii))
+<P><STRONG><a name="[94]"></a>OLED_Ascii</STRONG> (Thumb, 92 bytes, Stack size 20 bytes, oled.o(i.OLED_Ascii))
 <BR><BR>[Stack]<UL><LI>Max Depth = 80<LI>Call Chain = OLED_Ascii &rArr; OLED_Pix &rArr; OLED_set_dot
 </UL>
-<BR>[Calls]<UL><LI><a href="#[97]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
+<BR>[Calls]<UL><LI><a href="#[95]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
 </UL>
-<BR>[Called By]<UL><LI><a href="#[9e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Str
+<BR>[Called By]<UL><LI><a href="#[9d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Str
 </UL>
 
-<P><STRONG><a name="[98]"></a>OLED_Cache_to_hardware</STRONG> (Thumb, 102 bytes, Stack size 32 bytes, oled.o(i.OLED_Cache_to_hardware))
-<BR><BR>[Stack]<UL><LI>Max Depth = 200<LI>Call Chain = OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
+<P><STRONG><a name="[96]"></a>OLED_Cache_to_hardware</STRONG> (Thumb, 104 bytes, Stack size 40 bytes, oled.o(i.OLED_Cache_to_hardware))
+<BR><BR>[Stack]<UL><LI>Max Depth = 208<LI>Call Chain = OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[99]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+<BR>[Calls]<UL><LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[97]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
-<P><STRONG><a name="[9b]"></a>OLED_Init</STRONG> (Thumb, 138 bytes, Stack size 8 bytes, oled.o(i.OLED_Init))
+<P><STRONG><a name="[99]"></a>OLED_Init</STRONG> (Thumb, 138 bytes, Stack size 8 bytes, oled.o(i.OLED_Init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 168<LI>Call Chain = OLED_Init &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[9c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Calls]<UL><LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
-<P><STRONG><a name="[9d]"></a>OLED_Init_Display_Buffer</STRONG> (Thumb, 40 bytes, Stack size 16 bytes, oled.o(i.OLED_Init_Display_Buffer), UNUSED)
-<BR><BR>[Calls]<UL><LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[99]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+<P><STRONG><a name="[9b]"></a>OLED_Init_Display_Buffer</STRONG> (Thumb, 40 bytes, Stack size 16 bytes, oled.o(i.OLED_Init_Display_Buffer), UNUSED)
+<BR><BR>[Calls]<UL><LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[97]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
 </UL>
 
-<P><STRONG><a name="[97]"></a>OLED_Pix</STRONG> (Thumb, 164 bytes, Stack size 52 bytes, oled.o(i.OLED_Pix))
+<P><STRONG><a name="[95]"></a>OLED_Pix</STRONG> (Thumb, 164 bytes, Stack size 52 bytes, oled.o(i.OLED_Pix))
 <BR><BR>[Stack]<UL><LI>Max Depth = 60<LI>Call Chain = OLED_Pix &rArr; OLED_set_dot
 </UL>
-<BR>[Calls]<UL><LI><a href="#[95]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_set_dot
+<BR>[Calls]<UL><LI><a href="#[9c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_set_dot
 </UL>
-<BR>[Called By]<UL><LI><a href="#[96]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Ascii
+<BR>[Called By]<UL><LI><a href="#[94]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Ascii
 </UL>
 
-<P><STRONG><a name="[99]"></a>OLED_Set_Pos</STRONG> (Thumb, 36 bytes, Stack size 8 bytes, oled.o(i.OLED_Set_Pos))
+<P><STRONG><a name="[97]"></a>OLED_Set_Pos</STRONG> (Thumb, 36 bytes, Stack size 8 bytes, oled.o(i.OLED_Set_Pos))
 <BR><BR>[Stack]<UL><LI>Max Depth = 168<LI>Call Chain = OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[9c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Calls]<UL><LI><a href="#[9a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
-<BR>[Called By]<UL><LI><a href="#[9d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
-<LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
+<BR>[Called By]<UL><LI><a href="#[9b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
+<LI><a href="#[96]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
 </UL>
 
-<P><STRONG><a name="[9e]"></a>OLED_Str</STRONG> (Thumb, 94 bytes, Stack size 32 bytes, oled.o(i.OLED_Str))
+<P><STRONG><a name="[9d]"></a>OLED_Str</STRONG> (Thumb, 94 bytes, Stack size 32 bytes, oled.o(i.OLED_Str))
 <BR><BR>[Stack]<UL><LI>Max Depth = 112<LI>Call Chain = OLED_Str &rArr; OLED_Ascii &rArr; OLED_Pix &rArr; OLED_set_dot
 </UL>
-<BR>[Calls]<UL><LI><a href="#[96]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Ascii
+<BR>[Calls]<UL><LI><a href="#[94]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Ascii
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
-<P><STRONG><a name="[9c]"></a>OLED_WrCmd</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrCmd))
+<P><STRONG><a name="[9a]"></a>OLED_WrCmd</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrCmd))
 <BR><BR>[Stack]<UL><LI>Max Depth = 160<LI>Call Chain = OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
 <BR>[Calls]<UL><LI><a href="#[8e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;IIC_SAND_DATE
 </UL>
-<BR>[Called By]<UL><LI><a href="#[99]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
-<LI><a href="#[9b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
+<BR>[Called By]<UL><LI><a href="#[97]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+<LI><a href="#[99]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
 </UL>
 
-<P><STRONG><a name="[9a]"></a>OLED_WrDat</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrDat))
+<P><STRONG><a name="[98]"></a>OLED_WrDat</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrDat))
 <BR><BR>[Stack]<UL><LI>Max Depth = 160<LI>Call Chain = OLED_WrDat &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
 <BR>[Calls]<UL><LI><a href="#[8e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;IIC_SAND_DATE
 </UL>
-<BR>[Called By]<UL><LI><a href="#[9d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
-<LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
+<BR>[Called By]<UL><LI><a href="#[9b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
+<LI><a href="#[96]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
 </UL>
 
-<P><STRONG><a name="[95]"></a>OLED_set_dot</STRONG> (Thumb, 54 bytes, Stack size 8 bytes, oled.o(i.OLED_set_dot))
+<P><STRONG><a name="[9c]"></a>OLED_set_dot</STRONG> (Thumb, 54 bytes, Stack size 8 bytes, oled.o(i.OLED_set_dot))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = OLED_set_dot
 </UL>
-<BR>[Called By]<UL><LI><a href="#[97]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
-<LI><a href="#[94]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_AL
+<BR>[Called By]<UL><LI><a href="#[95]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
 </UL>
 
 <P><STRONG><a name="[10]"></a>PendSV_Handler</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.PendSV_Handler))
@@ -884,11 +875,11 @@ Global Symbols
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[11]"></a>SysTick_Handler</STRONG> (Thumb, 4 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.SysTick_Handler))
-<BR><BR>[Calls]<UL><LI><a href="#[9f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_IncTick
+<BR><BR>[Calls]<UL><LI><a href="#[9e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_IncTick
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[a0]"></a>SystemClock_Config</STRONG> (Thumb, 94 bytes, Stack size 72 bytes, main.o(i.SystemClock_Config))
+<P><STRONG><a name="[9f]"></a>SystemClock_Config</STRONG> (Thumb, 94 bytes, Stack size 72 bytes, main.o(i.SystemClock_Config))
 <BR><BR>[Stack]<UL><LI>Max Depth = 136<LI>Call Chain = SystemClock_Config &rArr; HAL_RCC_ClockConfig &rArr; HAL_InitTick &rArr; HAL_NVIC_SetPriority
 </UL>
 <BR>[Calls]<UL><LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_OscConfig
@@ -940,121 +931,120 @@ Global Symbols
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[a1]"></a>buzzer_play_server</STRONG> (Thumb, 76 bytes, Stack size 8 bytes, buzzer.o(i.buzzer_play_server))
+<P><STRONG><a name="[a0]"></a>buzzer_play_server</STRONG> (Thumb, 76 bytes, Stack size 8 bytes, buzzer.o(i.buzzer_play_server))
 <BR><BR>[Stack]<UL><LI>Max Depth = 48<LI>Call Chain = buzzer_play_server &rArr; play_ones &rArr; __aeabi_fmul
 </UL>
 <BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
-<LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delhead
+<LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delhead
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Called By]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
-<P><STRONG><a name="[a3]"></a>delhead</STRONG> (Thumb, 34 bytes, Stack size 8 bytes, buzzer.o(i.delhead))
+<P><STRONG><a name="[a2]"></a>delhead</STRONG> (Thumb, 34 bytes, Stack size 8 bytes, buzzer.o(i.delhead))
 <BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = delhead &rArr; free
 </UL>
 <BR>[Calls]<UL><LI><a href="#[53]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;free
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
+<BR>[Called By]<UL><LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
 </UL>
 
 <P><STRONG><a name="[4d]"></a>main</STRONG> (Thumb, 62 bytes, Stack size 0 bytes, main.o(i.main))
-<BR><BR>[Stack]<UL><LI>Max Depth = 224 + Unknown Stack Size
+<BR><BR>[Stack]<UL><LI>Max Depth = 232 + Unknown Stack Size
 <LI>Call Chain = main &rArr; mymain &rArr; OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+<BR>[Calls]<UL><LI><a href="#[a3]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 <LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Init
 <LI><a href="#[5d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Init
-<LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<LI><a href="#[9f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[91]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_TIM2_Init
 <LI><a href="#[8f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 </UL>
 <BR>[Called By]<UL><LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_entry_main
 </UL>
 
-<P><STRONG><a name="[a4]"></a>mymain</STRONG> (Thumb, 166 bytes, Stack size 24 bytes, mymain.o(i.mymain))
-<BR><BR>[Stack]<UL><LI>Max Depth = 224 + Unknown Stack Size
+<P><STRONG><a name="[a3]"></a>mymain</STRONG> (Thumb, 120 bytes, Stack size 24 bytes, mymain.o(i.mymain))
+<BR><BR>[Stack]<UL><LI>Max Depth = 232 + Unknown Stack Size
 <LI>Call Chain = mymain &rArr; OLED_Cache_to_hardware &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[90]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
-<LI><a href="#[a5]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_TogglePin
+<BR>[Calls]<UL><LI><a href="#[90]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
+<LI><a href="#[a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_TogglePin
+<LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 <LI><a href="#[8a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_PWM_Start
 <LI><a href="#[55]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__2sprintf
-<LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
-<LI><a href="#[9e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Str
-<LI><a href="#[9b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
-<LI><a href="#[98]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
-<LI><a href="#[94]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_AL
+<LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
+<LI><a href="#[9d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Str
+<LI><a href="#[99]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
+<LI><a href="#[96]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
 </UL>
 <BR>[Called By]<UL><LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
 
-<P><STRONG><a name="[a2]"></a>play_ones</STRONG> (Thumb, 58 bytes, Stack size 24 bytes, buzzer.o(i.play_ones))
+<P><STRONG><a name="[a1]"></a>play_ones</STRONG> (Thumb, 58 bytes, Stack size 24 bytes, buzzer.o(i.play_ones))
 <BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = play_ones &rArr; __aeabi_fmul
 </UL>
-<BR>[Calls]<UL><LI><a href="#[a9]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_fmul
-<LI><a href="#[a6]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ui2f
-<LI><a href="#[a8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2f
-<LI><a href="#[aa]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_f2uiz
-<LI><a href="#[a7]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_fdiv
+<BR>[Calls]<UL><LI><a href="#[a8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_fmul
+<LI><a href="#[a5]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ui2f
+<LI><a href="#[a7]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2f
+<LI><a href="#[a9]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_f2uiz
+<LI><a href="#[a6]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_fdiv
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
+<BR>[Called By]<UL><LI><a href="#[a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;buzzer_play_server
 </UL>
 
-<P><STRONG><a name="[a7]"></a>__aeabi_fdiv</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, fdiv.o(x$fpl$fdiv))
+<P><STRONG><a name="[a6]"></a>__aeabi_fdiv</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, fdiv.o(x$fpl$fdiv))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = __aeabi_fdiv
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
 </UL>
 
-<P><STRONG><a name="[ab]"></a>_fdiv</STRONG> (Thumb, 384 bytes, Stack size 16 bytes, fdiv.o(x$fpl$fdiv), UNUSED)
-<BR><BR>[Calls]<UL><LI><a href="#[ac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fretinf
-<LI><a href="#[ad]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
+<P><STRONG><a name="[aa]"></a>_fdiv</STRONG> (Thumb, 384 bytes, Stack size 16 bytes, fdiv.o(x$fpl$fdiv), UNUSED)
+<BR><BR>[Calls]<UL><LI><a href="#[ab]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fretinf
+<LI><a href="#[ac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
 </UL>
 
-<P><STRONG><a name="[aa]"></a>__aeabi_f2uiz</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, ffixu.o(x$fpl$ffixu))
+<P><STRONG><a name="[a9]"></a>__aeabi_f2uiz</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, ffixu.o(x$fpl$ffixu))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = __aeabi_f2uiz
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
 </UL>
 
-<P><STRONG><a name="[ae]"></a>_ffixu</STRONG> (Thumb, 62 bytes, Stack size 16 bytes, ffixu.o(x$fpl$ffixu), UNUSED)
-<BR><BR>[Calls]<UL><LI><a href="#[ad]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
+<P><STRONG><a name="[ad]"></a>_ffixu</STRONG> (Thumb, 62 bytes, Stack size 16 bytes, ffixu.o(x$fpl$ffixu), UNUSED)
+<BR><BR>[Calls]<UL><LI><a href="#[ac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
 </UL>
 
-<P><STRONG><a name="[a8]"></a>__aeabi_i2f</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$fflt))
-<BR><BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<P><STRONG><a name="[a7]"></a>__aeabi_i2f</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$fflt))
+<BR><BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
 </UL>
 
-<P><STRONG><a name="[de]"></a>_fflt</STRONG> (Thumb, 48 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$fflt), UNUSED)
+<P><STRONG><a name="[dd]"></a>_fflt</STRONG> (Thumb, 48 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$fflt), UNUSED)
 
-<P><STRONG><a name="[a6]"></a>__aeabi_ui2f</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$ffltu))
-<BR><BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<P><STRONG><a name="[a5]"></a>__aeabi_ui2f</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$ffltu))
+<BR><BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
 </UL>
 
-<P><STRONG><a name="[df]"></a>_ffltu</STRONG> (Thumb, 38 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$ffltu), UNUSED)
+<P><STRONG><a name="[de]"></a>_ffltu</STRONG> (Thumb, 38 bytes, Stack size 0 bytes, fflt_clz.o(x$fpl$ffltu), UNUSED)
 
-<P><STRONG><a name="[a9]"></a>__aeabi_fmul</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, fmul.o(x$fpl$fmul))
+<P><STRONG><a name="[a8]"></a>__aeabi_fmul</STRONG> (Thumb, 0 bytes, Stack size 16 bytes, fmul.o(x$fpl$fmul))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = __aeabi_fmul
 </UL>
-<BR>[Called By]<UL><LI><a href="#[a2]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
+<BR>[Called By]<UL><LI><a href="#[a1]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;play_ones
 </UL>
 
-<P><STRONG><a name="[af]"></a>_fmul</STRONG> (Thumb, 258 bytes, Stack size 16 bytes, fmul.o(x$fpl$fmul), UNUSED)
-<BR><BR>[Calls]<UL><LI><a href="#[ac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fretinf
-<LI><a href="#[ad]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
+<P><STRONG><a name="[ae]"></a>_fmul</STRONG> (Thumb, 258 bytes, Stack size 16 bytes, fmul.o(x$fpl$fmul), UNUSED)
+<BR><BR>[Calls]<UL><LI><a href="#[ab]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fretinf
+<LI><a href="#[ac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__fpl_fnaninf
 </UL>
 
-<P><STRONG><a name="[ad]"></a>__fpl_fnaninf</STRONG> (Thumb, 140 bytes, Stack size 8 bytes, fnaninf.o(x$fpl$fnaninf), UNUSED)
-<BR><BR>[Called By]<UL><LI><a href="#[af]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fmul
-<LI><a href="#[ae]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_ffixu
-<LI><a href="#[ab]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fdiv
+<P><STRONG><a name="[ac]"></a>__fpl_fnaninf</STRONG> (Thumb, 140 bytes, Stack size 8 bytes, fnaninf.o(x$fpl$fnaninf), UNUSED)
+<BR><BR>[Called By]<UL><LI><a href="#[ae]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fmul
+<LI><a href="#[ad]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_ffixu
+<LI><a href="#[aa]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fdiv
 </UL>
 
-<P><STRONG><a name="[ac]"></a>__fpl_fretinf</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, fretinf.o(x$fpl$fretinf), UNUSED)
-<BR><BR>[Called By]<UL><LI><a href="#[af]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fmul
-<LI><a href="#[ab]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fdiv
+<P><STRONG><a name="[ab]"></a>__fpl_fretinf</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, fretinf.o(x$fpl$fretinf), UNUSED)
+<BR><BR>[Called By]<UL><LI><a href="#[ae]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fmul
+<LI><a href="#[aa]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fdiv
 </UL>
 <P>
 <H3>
@@ -1101,8 +1091,8 @@ Local Symbols
 <P><STRONG><a name="[65]"></a>I2C_WaitOnBTFFlagUntilTimeout</STRONG> (Thumb, 76 bytes, Stack size 16 bytes, stm32f1xx_hal_i2c.o(i.I2C_WaitOnBTFFlagUntilTimeout))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = I2C_WaitOnBTFFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[8d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_IsAcknowledgeFailed
+<BR>[Calls]<UL><LI><a href="#[8d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_IsAcknowledgeFailed
+<LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
 <BR>[Called By]<UL><LI><a href="#[60]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Mem_Write
 </UL>
@@ -1127,8 +1117,8 @@ Local Symbols
 <P><STRONG><a name="[64]"></a>I2C_WaitOnTXEFlagUntilTimeout</STRONG> (Thumb, 76 bytes, Stack size 16 bytes, stm32f1xx_hal_i2c.o(i.I2C_WaitOnTXEFlagUntilTimeout))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = I2C_WaitOnTXEFlagUntilTimeout
 </UL>
-<BR>[Calls]<UL><LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[8d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_IsAcknowledgeFailed
+<BR>[Calls]<UL><LI><a href="#[8d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_IsAcknowledgeFailed
+<LI><a href="#[61]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
 <BR>[Called By]<UL><LI><a href="#[60]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Mem_Write
 <LI><a href="#[63]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;I2C_RequestMemoryWrite
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
index 310cf4c..47e2b90 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
@@ -495,9 +495,8 @@ Section Cross References
     mymain.o(i.mymain) refers to oled.o(i.OLED_Init) for OLED_Init
     mymain.o(i.mymain) refers to stm32f1xx_hal_tim.o(i.HAL_TIM_PWM_Start) for HAL_TIM_PWM_Start
     mymain.o(i.mymain) refers to stm32f1xx_hal_gpio.o(i.HAL_GPIO_WritePin) for HAL_GPIO_WritePin
-    mymain.o(i.mymain) refers to oled.o(i.OLED_Str) for OLED_Str
-    mymain.o(i.mymain) refers to oled.o(i.OLED_AL) for OLED_AL
     mymain.o(i.mymain) refers to noretval__2sprintf.o(.text) for __2sprintf
+    mymain.o(i.mymain) refers to oled.o(i.OLED_Str) for OLED_Str
     mymain.o(i.mymain) refers to oled.o(i.OLED_Cache_to_hardware) for OLED_Cache_to_hardware
     mymain.o(i.mymain) refers to buzzer.o(i.buzzer_play_server) for buzzer_play_server
     mymain.o(i.mymain) refers to stm32f1xx_hal.o(i.HAL_GetTick) for HAL_GetTick
@@ -523,6 +522,7 @@ Section Cross References
     oled.o(i.OLED_WrCmd) refers to hread_interface.o(i.IIC_SAND_DATE) for IIC_SAND_DATE
     oled.o(i.OLED_WrDat) refers to hread_interface.o(i.IIC_SAND_DATE) for IIC_SAND_DATE
     oled.o(i.OLED_set_dot) refers to oled.o(.bss) for .bss
+    oled.o(i.OLED_square) refers to oled.o(i.OLED_set_dot) for OLED_set_dot
     buzzer.o(i.add_a_note) refers to h1_alloc.o(.text) for malloc
     buzzer.o(i.add_a_note) refers to buzzer.o(.data) for .data
     buzzer.o(i.buzzer_play_server) refers to buzzer.o(i.play_ones) for play_ones
@@ -1168,20 +1168,23 @@ Removing Unused input sections from the image.
     Removing mymain.o(.revsh_text), (4 bytes).
     Removing mymain.o(.rrx_text), (6 bytes).
     Removing mymain.o(i.getmorsecode), (52 bytes).
+    Removing mymain.o(.bss), (20 bytes).
     Removing mymain.o(.constdata), (114 bytes).
     Removing mymain.o(.constdata), (150 bytes).
     Removing oled.o(.rev16_text), (4 bytes).
     Removing oled.o(.revsh_text), (4 bytes).
     Removing oled.o(.rrx_text), (6 bytes).
+    Removing oled.o(i.OLED_AL), (114 bytes).
     Removing oled.o(i.OLED_HL), (2 bytes).
     Removing oled.o(i.OLED_Setting_luminance), (44 bytes).
     Removing oled.o(i.OLED_VL), (2 bytes).
+    Removing oled.o(i.OLED_square), (66 bytes).
     Removing buzzer.o(.rev16_text), (4 bytes).
     Removing buzzer.o(.revsh_text), (4 bytes).
     Removing buzzer.o(.rrx_text), (6 bytes).
     Removing buzzer.o(i.add_a_note), (56 bytes).
 
-397 unused section(s) (total 34034 bytes) removed from the image.
+400 unused section(s) (total 34234 bytes) removed from the image.
 
 ==============================================================================
 
@@ -1210,99 +1213,99 @@ Image Symbol Table
     ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c 0x00000000   Number         0  stm32f1xx_hal_tim.o ABSOLUTE
     ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c 0x00000000   Number         0  stm32f1xx_hal_tim_ex.o ABSOLUTE
     ../clib/angel/boardlib.s                 0x00000000   Number         0  boardshut.o ABSOLUTE
-    ../clib/angel/boardlib.s                 0x00000000   Number         0  boardinit1.o ABSOLUTE
-    ../clib/angel/boardlib.s                 0x00000000   Number         0  boardinit2.o ABSOLUTE
     ../clib/angel/boardlib.s                 0x00000000   Number         0  boardinit3.o ABSOLUTE
+    ../clib/angel/boardlib.s                 0x00000000   Number         0  boardinit2.o ABSOLUTE
+    ../clib/angel/boardlib.s                 0x00000000   Number         0  boardinit1.o ABSOLUTE
     ../clib/angel/handlers.s                 0x00000000   Number         0  __scatter_copy.o ABSOLUTE
     ../clib/angel/handlers.s                 0x00000000   Number         0  __scatter_zi.o ABSOLUTE
-    ../clib/angel/kernel.s                   0x00000000   Number         0  __rtentry4.o ABSOLUTE
+    ../clib/angel/kernel.s                   0x00000000   Number         0  __rtentry2.o ABSOLUTE
     ../clib/angel/kernel.s                   0x00000000   Number         0  rtexit2.o ABSOLUTE
+    ../clib/angel/kernel.s                   0x00000000   Number         0  __rtentry4.o ABSOLUTE
     ../clib/angel/kernel.s                   0x00000000   Number         0  __rtentry.o ABSOLUTE
     ../clib/angel/kernel.s                   0x00000000   Number         0  rtexit.o ABSOLUTE
-    ../clib/angel/kernel.s                   0x00000000   Number         0  __rtentry2.o ABSOLUTE
-    ../clib/angel/rt.s                       0x00000000   Number         0  rt_heap_descriptor.o ABSOLUTE
-    ../clib/angel/rt.s                       0x00000000   Number         0  rt_heap_descriptor_intlibspace.o ABSOLUTE
     ../clib/angel/rt.s                       0x00000000   Number         0  rt_raise.o ABSOLUTE
+    ../clib/angel/rt.s                       0x00000000   Number         0  rt_heap_descriptor_intlibspace.o ABSOLUTE
+    ../clib/angel/rt.s                       0x00000000   Number         0  rt_heap_descriptor.o ABSOLUTE
     ../clib/angel/scatter.s                  0x00000000   Number         0  __scatter.o ABSOLUTE
     ../clib/angel/startup.s                  0x00000000   Number         0  __main.o ABSOLUTE
-    ../clib/angel/sys.s                      0x00000000   Number         0  use_no_semi.o ABSOLUTE
-    ../clib/angel/sys.s                      0x00000000   Number         0  mutex_dummy.o ABSOLUTE
-    ../clib/angel/sys.s                      0x00000000   Number         0  indicate_semi.o ABSOLUTE
     ../clib/angel/sys.s                      0x00000000   Number         0  sys_stackheap_outer.o ABSOLUTE
+    ../clib/angel/sys.s                      0x00000000   Number         0  use_no_semi.o ABSOLUTE
+    ../clib/angel/sys.s                      0x00000000   Number         0  indicate_semi.o ABSOLUTE
+    ../clib/angel/sys.s                      0x00000000   Number         0  mutex_dummy.o ABSOLUTE
     ../clib/angel/sys.s                      0x00000000   Number         0  libspace.o ABSOLUTE
     ../clib/angel/sysapp.c                   0x00000000   Number         0  sys_exit.o ABSOLUTE
     ../clib/angel/sysapp.c                   0x00000000   Number         0  sys_wrch.o ABSOLUTE
     ../clib/angel/sysapp.c                   0x00000000   Number         0  sys_command.o ABSOLUTE
-    ../clib/armsys.c                         0x00000000   Number         0  _get_argv.o ABSOLUTE
     ../clib/armsys.c                         0x00000000   Number         0  no_argv.o ABSOLUTE
     ../clib/armsys.c                         0x00000000   Number         0  argv_veneer.o ABSOLUTE
     ../clib/armsys.c                         0x00000000   Number         0  argv_veneer.o ABSOLUTE
+    ../clib/armsys.c                         0x00000000   Number         0  _get_argv.o ABSOLUTE
     ../clib/armsys.c                         0x00000000   Number         0  _get_argv_nomalloc.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_alloc_mt.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_init.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_init_mt.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_alloc.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_free_mt.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_extend.o ABSOLUTE
     ../clib/heap1.c                          0x00000000   Number         0  h1_extend_mt.o ABSOLUTE
-    ../clib/heap1.c                          0x00000000   Number         0  h1_free.o ABSOLUTE
     ../clib/heap1.c                          0x00000000   Number         0  h1_final.o ABSOLUTE
     ../clib/heap1.c                          0x00000000   Number         0  h1_final_mt.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_extend.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_init.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_free.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_init_mt.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_alloc_mt.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_free_mt.o ABSOLUTE
+    ../clib/heap1.c                          0x00000000   Number         0  h1_alloc.o ABSOLUTE
     ../clib/heap2.c                          0x00000000   Number         0  heap2.o ABSOLUTE
     ../clib/heap2.c                          0x00000000   Number         0  heap2mt.o ABSOLUTE
     ../clib/heap2.c                          0x00000000   Number         0  fdtree.o ABSOLUTE
+    ../clib/heapalloc.c                      0x00000000   Number         0  hguard.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  malloc.o ABSOLUTE
-    ../clib/heapalloc.c                      0x00000000   Number         0  maybetermalloc2.o ABSOLUTE
+    ../clib/heapalloc.c                      0x00000000   Number         0  free.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  term_alloc.o ABSOLUTE
+    ../clib/heapalloc.c                      0x00000000   Number         0  maybetermalloc2.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  maybetermalloc1.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  maybetermalloc1.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  hrguard.o ABSOLUTE
-    ../clib/heapalloc.c                      0x00000000   Number         0  hguard.o ABSOLUTE
-    ../clib/heapalloc.c                      0x00000000   Number         0  heapstubs.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  init_alloc.o ABSOLUTE
-    ../clib/heapalloc.c                      0x00000000   Number         0  free.o ABSOLUTE
+    ../clib/heapalloc.c                      0x00000000   Number         0  heapstubs.o ABSOLUTE
     ../clib/heapalloc.c                      0x00000000   Number         0  maybetermalloc2.o ABSOLUTE
-    ../clib/heapaux.c                        0x00000000   Number         0  heapauxa.o ABSOLUTE
     ../clib/heapaux.c                        0x00000000   Number         0  heapauxi.o ABSOLUTE
+    ../clib/heapaux.c                        0x00000000   Number         0  heapauxa.o ABSOLUTE
     ../clib/libinit.s                        0x00000000   Number         0  libinit.o ABSOLUTE
     ../clib/libinit.s                        0x00000000   Number         0  libshutdown.o ABSOLUTE
-    ../clib/libinit.s                        0x00000000   Number         0  libinit2.o ABSOLUTE
     ../clib/libinit.s                        0x00000000   Number         0  libshutdown2.o ABSOLUTE
+    ../clib/libinit.s                        0x00000000   Number         0  libinit2.o ABSOLUTE
     ../clib/longlong.s                       0x00000000   Number         0  llushr.o ABSOLUTE
-    ../clib/memcpset.s                       0x00000000   Number         0  rt_memcpy_w.o ABSOLUTE
     ../clib/memcpset.s                       0x00000000   Number         0  rt_memclr_w.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  __printf_wp.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  __printf_nopercent.o ABSOLUTE
+    ../clib/memcpset.s                       0x00000000   Number         0  rt_memcpy_w.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __2sprintf.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  __printf.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  _printf_intcommon.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  noretval__2sprintf.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  _printf_dec.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_flags.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_ss.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  _printf_char_common.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_flags_ss.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  noretval__2sprintf.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  __printf_wp.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_flags_wp.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_ss_wp.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  __printf_flags_ss_wp.o ABSOLUTE
+    ../clib/printf.c                         0x00000000   Number         0  __printf_nopercent.o ABSOLUTE
     ../clib/printf.c                         0x00000000   Number         0  _sputc.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  _printf_char_common.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  _printf_intcommon.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  _printf_dec.o ABSOLUTE
-    ../clib/printf.c                         0x00000000   Number         0  __printf.o ABSOLUTE
     ../clib/printf_percent.s                 0x00000000   Number         0  _printf_d.o ABSOLUTE
     ../clib/printf_percent.s                 0x00000000   Number         0  _printf_percent.o ABSOLUTE
     ../clib/printf_percent.s                 0x00000000   Number         0  _printf_percent_end.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_general.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  __raise.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_pvfn_inner.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_cppl_inner.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_rtmem_formal.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_rtmem_outer.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_pvfn_inner.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_cppl_inner.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_stak_inner.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_segv_inner.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_other.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_rtred_inner.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_segv_inner.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_general.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  __raise.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_rtmem_inner.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_fpe_inner.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_abrt_inner.o ABSOLUTE
+    ../clib/signal.c                         0x00000000   Number         0  defsig_other.o ABSOLUTE
     ../clib/signal.c                         0x00000000   Number         0  defsig_exit.o ABSOLUTE
-    ../clib/signal.c                         0x00000000   Number         0  defsig_rtmem_inner.o ABSOLUTE
     ../clib/signal.s                         0x00000000   Number         0  defsig.o ABSOLUTE
     ../clib/stdlib.c                         0x00000000   Number         0  exit.o ABSOLUTE
     ../fplib/dfixu.s                         0x00000000   Number         0  dfixu.o ABSOLUTE
@@ -1473,59 +1476,58 @@ Image Symbol Table
     MX_TIM2_Init                             0x080018f1   Thumb Code   140  main.o(i.MX_TIM2_Init)
     i.MemManage_Handler                      0x08001980   Section        0  stm32f1xx_it.o(i.MemManage_Handler)
     i.NMI_Handler                            0x08001982   Section        0  stm32f1xx_it.o(i.NMI_Handler)
-    i.OLED_AL                                0x08001984   Section        0  oled.o(i.OLED_AL)
-    i.OLED_Ascii                             0x08001a08   Section        0  oled.o(i.OLED_Ascii)
-    i.OLED_Cache_to_hardware                 0x08001a70   Section        0  oled.o(i.OLED_Cache_to_hardware)
-    i.OLED_Init                              0x08001adc   Section        0  oled.o(i.OLED_Init)
-    i.OLED_Init_Display_Buffer               0x08001b66   Section        0  oled.o(i.OLED_Init_Display_Buffer)
-    i.OLED_Pix                               0x08001b8e   Section        0  oled.o(i.OLED_Pix)
-    i.OLED_Set_Pos                           0x08001c32   Section        0  oled.o(i.OLED_Set_Pos)
-    i.OLED_Str                               0x08001c56   Section        0  oled.o(i.OLED_Str)
-    i.OLED_WrCmd                             0x08001cb4   Section        0  oled.o(i.OLED_WrCmd)
-    i.OLED_WrDat                             0x08001cc4   Section        0  oled.o(i.OLED_WrDat)
-    i.OLED_set_dot                           0x08001cd4   Section        0  oled.o(i.OLED_set_dot)
-    i.PendSV_Handler                         0x08001d10   Section        0  stm32f1xx_it.o(i.PendSV_Handler)
-    i.SVC_Handler                            0x08001d12   Section        0  stm32f1xx_it.o(i.SVC_Handler)
-    i.SysTick_Handler                        0x08001d14   Section        0  stm32f1xx_it.o(i.SysTick_Handler)
-    i.SystemClock_Config                     0x08001d18   Section        0  main.o(i.SystemClock_Config)
-    i.SystemInit                             0x08001d76   Section        0  system_stm32f1xx.o(i.SystemInit)
-    i.TIM2_IRQHandler                        0x08001d78   Section        0  stm32f1xx_it.o(i.TIM2_IRQHandler)
-    i.TIM_Base_SetConfig                     0x08001d84   Section        0  stm32f1xx_hal_tim.o(i.TIM_Base_SetConfig)
-    i.TIM_CCxChannelCmd                      0x08001df0   Section        0  stm32f1xx_hal_tim.o(i.TIM_CCxChannelCmd)
-    i.TIM_ETR_SetConfig                      0x08001e0a   Section        0  stm32f1xx_hal_tim.o(i.TIM_ETR_SetConfig)
-    i.TIM_ITRx_SetConfig                     0x08001e1e   Section        0  stm32f1xx_hal_tim.o(i.TIM_ITRx_SetConfig)
-    TIM_ITRx_SetConfig                       0x08001e1f   Thumb Code    16  stm32f1xx_hal_tim.o(i.TIM_ITRx_SetConfig)
-    i.TIM_OC1_SetConfig                      0x08001e30   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC1_SetConfig)
-    TIM_OC1_SetConfig                        0x08001e31   Thumb Code    74  stm32f1xx_hal_tim.o(i.TIM_OC1_SetConfig)
-    i.TIM_OC2_SetConfig                      0x08001e80   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC2_SetConfig)
-    i.TIM_OC3_SetConfig                      0x08001ed8   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC3_SetConfig)
-    TIM_OC3_SetConfig                        0x08001ed9   Thumb Code    82  stm32f1xx_hal_tim.o(i.TIM_OC3_SetConfig)
-    i.TIM_OC4_SetConfig                      0x08001f30   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC4_SetConfig)
-    TIM_OC4_SetConfig                        0x08001f31   Thumb Code    64  stm32f1xx_hal_tim.o(i.TIM_OC4_SetConfig)
-    i.TIM_TI1_ConfigInputStage               0x08001f74   Section        0  stm32f1xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
-    TIM_TI1_ConfigInputStage                 0x08001f75   Thumb Code    34  stm32f1xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
-    i.TIM_TI2_ConfigInputStage               0x08001f96   Section        0  stm32f1xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
-    TIM_TI2_ConfigInputStage                 0x08001f97   Thumb Code    36  stm32f1xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
-    i.UsageFault_Handler                     0x08001fba   Section        0  stm32f1xx_it.o(i.UsageFault_Handler)
-    i.__NVIC_SetPriority                     0x08001fbc   Section        0  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
-    __NVIC_SetPriority                       0x08001fbd   Thumb Code    32  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
-    i.buzzer_play_server                     0x08001fdc   Section        0  buzzer.o(i.buzzer_play_server)
-    i.delhead                                0x0800202c   Section        0  buzzer.o(i.delhead)
-    i.main                                   0x08002054   Section        0  main.o(i.main)
-    i.mymain                                 0x080020a0   Section        0  mymain.o(i.mymain)
-    i.play_ones                              0x08002164   Section        0  buzzer.o(i.play_ones)
-    x$fpl$fdiv                               0x080021a8   Section      388  fdiv.o(x$fpl$fdiv)
-    _fdiv1                                   0x080021a9   Thumb Code     0  fdiv.o(x$fpl$fdiv)
-    x$fpl$ffixu                              0x0800232c   Section       62  ffixu.o(x$fpl$ffixu)
-    x$fpl$fflt                               0x0800236c   Section       48  fflt_clz.o(x$fpl$fflt)
-    x$fpl$ffltu                              0x0800239c   Section       38  fflt_clz.o(x$fpl$ffltu)
-    x$fpl$fmul                               0x080023c4   Section      258  fmul.o(x$fpl$fmul)
-    x$fpl$fnaninf                            0x080024c6   Section      140  fnaninf.o(x$fpl$fnaninf)
-    x$fpl$fretinf                            0x08002552   Section       10  fretinf.o(x$fpl$fretinf)
-    .constdata                               0x0800255c   Section       16  system_stm32f1xx.o(.constdata)
-    x$fpl$usenofp                            0x0800255c   Section        0  usenofp.o(x$fpl$usenofp)
-    .constdata                               0x0800256c   Section        8  system_stm32f1xx.o(.constdata)
-    .constdata                               0x08002574   Section     3420  oled.o(.constdata)
+    i.OLED_Ascii                             0x08001984   Section        0  oled.o(i.OLED_Ascii)
+    i.OLED_Cache_to_hardware                 0x080019ec   Section        0  oled.o(i.OLED_Cache_to_hardware)
+    i.OLED_Init                              0x08001a58   Section        0  oled.o(i.OLED_Init)
+    i.OLED_Init_Display_Buffer               0x08001ae2   Section        0  oled.o(i.OLED_Init_Display_Buffer)
+    i.OLED_Pix                               0x08001b0a   Section        0  oled.o(i.OLED_Pix)
+    i.OLED_Set_Pos                           0x08001bae   Section        0  oled.o(i.OLED_Set_Pos)
+    i.OLED_Str                               0x08001bd2   Section        0  oled.o(i.OLED_Str)
+    i.OLED_WrCmd                             0x08001c30   Section        0  oled.o(i.OLED_WrCmd)
+    i.OLED_WrDat                             0x08001c40   Section        0  oled.o(i.OLED_WrDat)
+    i.OLED_set_dot                           0x08001c50   Section        0  oled.o(i.OLED_set_dot)
+    i.PendSV_Handler                         0x08001c8c   Section        0  stm32f1xx_it.o(i.PendSV_Handler)
+    i.SVC_Handler                            0x08001c8e   Section        0  stm32f1xx_it.o(i.SVC_Handler)
+    i.SysTick_Handler                        0x08001c90   Section        0  stm32f1xx_it.o(i.SysTick_Handler)
+    i.SystemClock_Config                     0x08001c94   Section        0  main.o(i.SystemClock_Config)
+    i.SystemInit                             0x08001cf2   Section        0  system_stm32f1xx.o(i.SystemInit)
+    i.TIM2_IRQHandler                        0x08001cf4   Section        0  stm32f1xx_it.o(i.TIM2_IRQHandler)
+    i.TIM_Base_SetConfig                     0x08001d00   Section        0  stm32f1xx_hal_tim.o(i.TIM_Base_SetConfig)
+    i.TIM_CCxChannelCmd                      0x08001d6c   Section        0  stm32f1xx_hal_tim.o(i.TIM_CCxChannelCmd)
+    i.TIM_ETR_SetConfig                      0x08001d86   Section        0  stm32f1xx_hal_tim.o(i.TIM_ETR_SetConfig)
+    i.TIM_ITRx_SetConfig                     0x08001d9a   Section        0  stm32f1xx_hal_tim.o(i.TIM_ITRx_SetConfig)
+    TIM_ITRx_SetConfig                       0x08001d9b   Thumb Code    16  stm32f1xx_hal_tim.o(i.TIM_ITRx_SetConfig)
+    i.TIM_OC1_SetConfig                      0x08001dac   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC1_SetConfig)
+    TIM_OC1_SetConfig                        0x08001dad   Thumb Code    74  stm32f1xx_hal_tim.o(i.TIM_OC1_SetConfig)
+    i.TIM_OC2_SetConfig                      0x08001dfc   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC2_SetConfig)
+    i.TIM_OC3_SetConfig                      0x08001e54   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC3_SetConfig)
+    TIM_OC3_SetConfig                        0x08001e55   Thumb Code    82  stm32f1xx_hal_tim.o(i.TIM_OC3_SetConfig)
+    i.TIM_OC4_SetConfig                      0x08001eac   Section        0  stm32f1xx_hal_tim.o(i.TIM_OC4_SetConfig)
+    TIM_OC4_SetConfig                        0x08001ead   Thumb Code    64  stm32f1xx_hal_tim.o(i.TIM_OC4_SetConfig)
+    i.TIM_TI1_ConfigInputStage               0x08001ef0   Section        0  stm32f1xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
+    TIM_TI1_ConfigInputStage                 0x08001ef1   Thumb Code    34  stm32f1xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
+    i.TIM_TI2_ConfigInputStage               0x08001f12   Section        0  stm32f1xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
+    TIM_TI2_ConfigInputStage                 0x08001f13   Thumb Code    36  stm32f1xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
+    i.UsageFault_Handler                     0x08001f36   Section        0  stm32f1xx_it.o(i.UsageFault_Handler)
+    i.__NVIC_SetPriority                     0x08001f38   Section        0  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
+    __NVIC_SetPriority                       0x08001f39   Thumb Code    32  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
+    i.buzzer_play_server                     0x08001f58   Section        0  buzzer.o(i.buzzer_play_server)
+    i.delhead                                0x08001fa8   Section        0  buzzer.o(i.delhead)
+    i.main                                   0x08001fd0   Section        0  main.o(i.main)
+    i.mymain                                 0x0800201c   Section        0  mymain.o(i.mymain)
+    i.play_ones                              0x080020a8   Section        0  buzzer.o(i.play_ones)
+    x$fpl$fdiv                               0x080020ec   Section      388  fdiv.o(x$fpl$fdiv)
+    _fdiv1                                   0x080020ed   Thumb Code     0  fdiv.o(x$fpl$fdiv)
+    x$fpl$ffixu                              0x08002270   Section       62  ffixu.o(x$fpl$ffixu)
+    x$fpl$fflt                               0x080022b0   Section       48  fflt_clz.o(x$fpl$fflt)
+    x$fpl$ffltu                              0x080022e0   Section       38  fflt_clz.o(x$fpl$ffltu)
+    x$fpl$fmul                               0x08002308   Section      258  fmul.o(x$fpl$fmul)
+    x$fpl$fnaninf                            0x0800240a   Section      140  fnaninf.o(x$fpl$fnaninf)
+    x$fpl$fretinf                            0x08002496   Section       10  fretinf.o(x$fpl$fretinf)
+    .constdata                               0x080024a0   Section       16  system_stm32f1xx.o(.constdata)
+    x$fpl$usenofp                            0x080024a0   Section        0  usenofp.o(x$fpl$usenofp)
+    .constdata                               0x080024b0   Section        8  system_stm32f1xx.o(.constdata)
+    .constdata                               0x080024b8   Section     3420  oled.o(.constdata)
     .data                                    0x20000000   Section       12  stm32f1xx_hal.o(.data)
     .data                                    0x2000000c   Section        4  system_stm32f1xx.o(.data)
     .data                                    0x20000010   Section       12  buzzer.o(.data)
@@ -1744,53 +1746,52 @@ Image Symbol Table
     IIC_SAND_DATE                            0x080017f9   Thumb Code    22  hread_interface.o(i.IIC_SAND_DATE)
     MemManage_Handler                        0x08001981   Thumb Code     2  stm32f1xx_it.o(i.MemManage_Handler)
     NMI_Handler                              0x08001983   Thumb Code     2  stm32f1xx_it.o(i.NMI_Handler)
-    OLED_AL                                  0x08001985   Thumb Code   130  oled.o(i.OLED_AL)
-    OLED_Ascii                               0x08001a09   Thumb Code    92  oled.o(i.OLED_Ascii)
-    OLED_Cache_to_hardware                   0x08001a71   Thumb Code   102  oled.o(i.OLED_Cache_to_hardware)
-    OLED_Init                                0x08001add   Thumb Code   138  oled.o(i.OLED_Init)
-    OLED_Init_Display_Buffer                 0x08001b67   Thumb Code    40  oled.o(i.OLED_Init_Display_Buffer)
-    OLED_Pix                                 0x08001b8f   Thumb Code   164  oled.o(i.OLED_Pix)
-    OLED_Set_Pos                             0x08001c33   Thumb Code    36  oled.o(i.OLED_Set_Pos)
-    OLED_Str                                 0x08001c57   Thumb Code    94  oled.o(i.OLED_Str)
-    OLED_WrCmd                               0x08001cb5   Thumb Code    16  oled.o(i.OLED_WrCmd)
-    OLED_WrDat                               0x08001cc5   Thumb Code    16  oled.o(i.OLED_WrDat)
-    OLED_set_dot                             0x08001cd5   Thumb Code    54  oled.o(i.OLED_set_dot)
-    PendSV_Handler                           0x08001d11   Thumb Code     2  stm32f1xx_it.o(i.PendSV_Handler)
-    SVC_Handler                              0x08001d13   Thumb Code     2  stm32f1xx_it.o(i.SVC_Handler)
-    SysTick_Handler                          0x08001d15   Thumb Code     4  stm32f1xx_it.o(i.SysTick_Handler)
-    SystemClock_Config                       0x08001d19   Thumb Code    94  main.o(i.SystemClock_Config)
-    SystemInit                               0x08001d77   Thumb Code     2  system_stm32f1xx.o(i.SystemInit)
-    TIM2_IRQHandler                          0x08001d79   Thumb Code     6  stm32f1xx_it.o(i.TIM2_IRQHandler)
-    TIM_Base_SetConfig                       0x08001d85   Thumb Code    94  stm32f1xx_hal_tim.o(i.TIM_Base_SetConfig)
-    TIM_CCxChannelCmd                        0x08001df1   Thumb Code    26  stm32f1xx_hal_tim.o(i.TIM_CCxChannelCmd)
-    TIM_ETR_SetConfig                        0x08001e0b   Thumb Code    20  stm32f1xx_hal_tim.o(i.TIM_ETR_SetConfig)
-    TIM_OC2_SetConfig                        0x08001e81   Thumb Code    84  stm32f1xx_hal_tim.o(i.TIM_OC2_SetConfig)
-    UsageFault_Handler                       0x08001fbb   Thumb Code     2  stm32f1xx_it.o(i.UsageFault_Handler)
-    buzzer_play_server                       0x08001fdd   Thumb Code    76  buzzer.o(i.buzzer_play_server)
-    delhead                                  0x0800202d   Thumb Code    34  buzzer.o(i.delhead)
-    main                                     0x08002055   Thumb Code    62  main.o(i.main)
-    mymain                                   0x080020a1   Thumb Code   166  mymain.o(i.mymain)
-    play_ones                                0x08002165   Thumb Code    58  buzzer.o(i.play_ones)
-    __aeabi_fdiv                             0x080021a9   Thumb Code     0  fdiv.o(x$fpl$fdiv)
-    _fdiv                                    0x080021a9   Thumb Code   384  fdiv.o(x$fpl$fdiv)
-    __aeabi_f2uiz                            0x0800232d   Thumb Code     0  ffixu.o(x$fpl$ffixu)
-    _ffixu                                   0x0800232d   Thumb Code    62  ffixu.o(x$fpl$ffixu)
-    __aeabi_i2f                              0x0800236d   Thumb Code     0  fflt_clz.o(x$fpl$fflt)
-    _fflt                                    0x0800236d   Thumb Code    48  fflt_clz.o(x$fpl$fflt)
-    __aeabi_ui2f                             0x0800239d   Thumb Code     0  fflt_clz.o(x$fpl$ffltu)
-    _ffltu                                   0x0800239d   Thumb Code    38  fflt_clz.o(x$fpl$ffltu)
-    __aeabi_fmul                             0x080023c5   Thumb Code     0  fmul.o(x$fpl$fmul)
-    _fmul                                    0x080023c5   Thumb Code   258  fmul.o(x$fpl$fmul)
-    __fpl_fnaninf                            0x080024c7   Thumb Code   140  fnaninf.o(x$fpl$fnaninf)
-    __fpl_fretinf                            0x08002553   Thumb Code    10  fretinf.o(x$fpl$fretinf)
-    AHBPrescTable                            0x0800255c   Data          16  system_stm32f1xx.o(.constdata)
-    __I$use$fp                               0x0800255c   Number         0  usenofp.o(x$fpl$usenofp)
-    APBPrescTable                            0x0800256c   Data           8  system_stm32f1xx.o(.constdata)
-    asc2_0805                                0x08002574   Data         760  oled.o(.constdata)
-    asc2_1206                                0x0800286c   Data        1140  oled.o(.constdata)
-    asc2_1608                                0x08002ce0   Data        1520  oled.o(.constdata)
-    Region$$Table$$Base                      0x080032d0   Number         0  anon$$obj.o(Region$$Table)
-    Region$$Table$$Limit                     0x080032f0   Number         0  anon$$obj.o(Region$$Table)
+    OLED_Ascii                               0x08001985   Thumb Code    92  oled.o(i.OLED_Ascii)
+    OLED_Cache_to_hardware                   0x080019ed   Thumb Code   104  oled.o(i.OLED_Cache_to_hardware)
+    OLED_Init                                0x08001a59   Thumb Code   138  oled.o(i.OLED_Init)
+    OLED_Init_Display_Buffer                 0x08001ae3   Thumb Code    40  oled.o(i.OLED_Init_Display_Buffer)
+    OLED_Pix                                 0x08001b0b   Thumb Code   164  oled.o(i.OLED_Pix)
+    OLED_Set_Pos                             0x08001baf   Thumb Code    36  oled.o(i.OLED_Set_Pos)
+    OLED_Str                                 0x08001bd3   Thumb Code    94  oled.o(i.OLED_Str)
+    OLED_WrCmd                               0x08001c31   Thumb Code    16  oled.o(i.OLED_WrCmd)
+    OLED_WrDat                               0x08001c41   Thumb Code    16  oled.o(i.OLED_WrDat)
+    OLED_set_dot                             0x08001c51   Thumb Code    54  oled.o(i.OLED_set_dot)
+    PendSV_Handler                           0x08001c8d   Thumb Code     2  stm32f1xx_it.o(i.PendSV_Handler)
+    SVC_Handler                              0x08001c8f   Thumb Code     2  stm32f1xx_it.o(i.SVC_Handler)
+    SysTick_Handler                          0x08001c91   Thumb Code     4  stm32f1xx_it.o(i.SysTick_Handler)
+    SystemClock_Config                       0x08001c95   Thumb Code    94  main.o(i.SystemClock_Config)
+    SystemInit                               0x08001cf3   Thumb Code     2  system_stm32f1xx.o(i.SystemInit)
+    TIM2_IRQHandler                          0x08001cf5   Thumb Code     6  stm32f1xx_it.o(i.TIM2_IRQHandler)
+    TIM_Base_SetConfig                       0x08001d01   Thumb Code    94  stm32f1xx_hal_tim.o(i.TIM_Base_SetConfig)
+    TIM_CCxChannelCmd                        0x08001d6d   Thumb Code    26  stm32f1xx_hal_tim.o(i.TIM_CCxChannelCmd)
+    TIM_ETR_SetConfig                        0x08001d87   Thumb Code    20  stm32f1xx_hal_tim.o(i.TIM_ETR_SetConfig)
+    TIM_OC2_SetConfig                        0x08001dfd   Thumb Code    84  stm32f1xx_hal_tim.o(i.TIM_OC2_SetConfig)
+    UsageFault_Handler                       0x08001f37   Thumb Code     2  stm32f1xx_it.o(i.UsageFault_Handler)
+    buzzer_play_server                       0x08001f59   Thumb Code    76  buzzer.o(i.buzzer_play_server)
+    delhead                                  0x08001fa9   Thumb Code    34  buzzer.o(i.delhead)
+    main                                     0x08001fd1   Thumb Code    62  main.o(i.main)
+    mymain                                   0x0800201d   Thumb Code   120  mymain.o(i.mymain)
+    play_ones                                0x080020a9   Thumb Code    58  buzzer.o(i.play_ones)
+    __aeabi_fdiv                             0x080020ed   Thumb Code     0  fdiv.o(x$fpl$fdiv)
+    _fdiv                                    0x080020ed   Thumb Code   384  fdiv.o(x$fpl$fdiv)
+    __aeabi_f2uiz                            0x08002271   Thumb Code     0  ffixu.o(x$fpl$ffixu)
+    _ffixu                                   0x08002271   Thumb Code    62  ffixu.o(x$fpl$ffixu)
+    __aeabi_i2f                              0x080022b1   Thumb Code     0  fflt_clz.o(x$fpl$fflt)
+    _fflt                                    0x080022b1   Thumb Code    48  fflt_clz.o(x$fpl$fflt)
+    __aeabi_ui2f                             0x080022e1   Thumb Code     0  fflt_clz.o(x$fpl$ffltu)
+    _ffltu                                   0x080022e1   Thumb Code    38  fflt_clz.o(x$fpl$ffltu)
+    __aeabi_fmul                             0x08002309   Thumb Code     0  fmul.o(x$fpl$fmul)
+    _fmul                                    0x08002309   Thumb Code   258  fmul.o(x$fpl$fmul)
+    __fpl_fnaninf                            0x0800240b   Thumb Code   140  fnaninf.o(x$fpl$fnaninf)
+    __fpl_fretinf                            0x08002497   Thumb Code    10  fretinf.o(x$fpl$fretinf)
+    AHBPrescTable                            0x080024a0   Data          16  system_stm32f1xx.o(.constdata)
+    __I$use$fp                               0x080024a0   Number         0  usenofp.o(x$fpl$usenofp)
+    APBPrescTable                            0x080024b0   Data           8  system_stm32f1xx.o(.constdata)
+    asc2_0805                                0x080024b8   Data         760  oled.o(.constdata)
+    asc2_1206                                0x080027b0   Data        1140  oled.o(.constdata)
+    asc2_1608                                0x08002c24   Data        1520  oled.o(.constdata)
+    Region$$Table$$Base                      0x08003214   Number         0  anon$$obj.o(Region$$Table)
+    Region$$Table$$Limit                     0x08003234   Number         0  anon$$obj.o(Region$$Table)
     uwTickFreq                               0x20000000   Data           1  stm32f1xx_hal.o(.data)
     uwTickPrio                               0x20000004   Data           4  stm32f1xx_hal.o(.data)
     uwTick                                   0x20000008   Data           4  stm32f1xx_hal.o(.data)
@@ -1811,202 +1812,200 @@ Memory Map of the image
 
   Image Entry point : 0x080000ed
 
-  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x0000330c, Max: 0x00010000, ABSOLUTE)
+  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00003250, Max: 0x00010000, ABSOLUTE)
 
-    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x000032f0, Max: 0x00010000, ABSOLUTE)
+    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00003234, Max: 0x00010000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
     0x08000000   0x08000000   0x000000ec   Data   RO            3    RESET               startup_stm32f103xb.o
-    0x080000ec   0x080000ec   0x00000008   Code   RO         3077  * !!!main             c_w.l(__main.o)
-    0x080000f4   0x080000f4   0x00000034   Code   RO         3328    !!!scatter          c_w.l(__scatter.o)
-    0x08000128   0x08000128   0x0000001a   Code   RO         3330    !!handler_copy      c_w.l(__scatter_copy.o)
+    0x080000ec   0x080000ec   0x00000008   Code   RO         3090  * !!!main             c_w.l(__main.o)
+    0x080000f4   0x080000f4   0x00000034   Code   RO         3341    !!!scatter          c_w.l(__scatter.o)
+    0x08000128   0x08000128   0x0000001a   Code   RO         3343    !!handler_copy      c_w.l(__scatter_copy.o)
     0x08000142   0x08000142   0x00000002   PAD
-    0x08000144   0x08000144   0x0000001c   Code   RO         3332    !!handler_zi        c_w.l(__scatter_zi.o)
-    0x08000160   0x08000160   0x00000000   Code   RO         3072    .ARM.Collect$$_printf_percent$$00000000  c_w.l(_printf_percent.o)
-    0x08000160   0x08000160   0x00000006   Code   RO         3071    .ARM.Collect$$_printf_percent$$00000009  c_w.l(_printf_d.o)
-    0x08000166   0x08000166   0x00000004   Code   RO         3141    .ARM.Collect$$_printf_percent$$00000017  c_w.l(_printf_percent_end.o)
-    0x0800016a   0x0800016a   0x00000002   Code   RO         3265    .ARM.Collect$$libinit$$00000000  c_w.l(libinit.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3147    .ARM.Collect$$libinit$$00000002  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3149    .ARM.Collect$$libinit$$00000004  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3152    .ARM.Collect$$libinit$$0000000A  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3154    .ARM.Collect$$libinit$$0000000C  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3156    .ARM.Collect$$libinit$$0000000E  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3159    .ARM.Collect$$libinit$$00000011  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3161    .ARM.Collect$$libinit$$00000013  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3163    .ARM.Collect$$libinit$$00000015  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3165    .ARM.Collect$$libinit$$00000017  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3167    .ARM.Collect$$libinit$$00000019  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3169    .ARM.Collect$$libinit$$0000001B  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3171    .ARM.Collect$$libinit$$0000001D  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3173    .ARM.Collect$$libinit$$0000001F  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3175    .ARM.Collect$$libinit$$00000021  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3177    .ARM.Collect$$libinit$$00000023  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3179    .ARM.Collect$$libinit$$00000025  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3183    .ARM.Collect$$libinit$$0000002C  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3185    .ARM.Collect$$libinit$$0000002E  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3187    .ARM.Collect$$libinit$$00000030  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000000   Code   RO         3189    .ARM.Collect$$libinit$$00000032  c_w.l(libinit2.o)
-    0x0800016c   0x0800016c   0x00000002   Code   RO         3190    .ARM.Collect$$libinit$$00000033  c_w.l(libinit2.o)
-    0x0800016e   0x0800016e   0x00000002   Code   RO         3325    .ARM.Collect$$libshutdown$$00000000  c_w.l(libshutdown.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3279    .ARM.Collect$$libshutdown$$00000002  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3281    .ARM.Collect$$libshutdown$$00000004  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3283    .ARM.Collect$$libshutdown$$00000006  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3286    .ARM.Collect$$libshutdown$$00000009  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3289    .ARM.Collect$$libshutdown$$0000000C  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3291    .ARM.Collect$$libshutdown$$0000000E  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000000   Code   RO         3294    .ARM.Collect$$libshutdown$$00000011  c_w.l(libshutdown2.o)
-    0x08000170   0x08000170   0x00000002   Code   RO         3295    .ARM.Collect$$libshutdown$$00000012  c_w.l(libshutdown2.o)
-    0x08000172   0x08000172   0x00000000   Code   RO         3109    .ARM.Collect$$rtentry$$00000000  c_w.l(__rtentry.o)
-    0x08000172   0x08000172   0x00000000   Code   RO         3206    .ARM.Collect$$rtentry$$00000002  c_w.l(__rtentry2.o)
-    0x08000172   0x08000172   0x00000006   Code   RO         3218    .ARM.Collect$$rtentry$$00000004  c_w.l(__rtentry4.o)
-    0x08000178   0x08000178   0x00000000   Code   RO         3208    .ARM.Collect$$rtentry$$00000009  c_w.l(__rtentry2.o)
-    0x08000178   0x08000178   0x00000004   Code   RO         3209    .ARM.Collect$$rtentry$$0000000A  c_w.l(__rtentry2.o)
-    0x0800017c   0x0800017c   0x00000000   Code   RO         3211    .ARM.Collect$$rtentry$$0000000C  c_w.l(__rtentry2.o)
-    0x0800017c   0x0800017c   0x00000008   Code   RO         3212    .ARM.Collect$$rtentry$$0000000D  c_w.l(__rtentry2.o)
-    0x08000184   0x08000184   0x00000002   Code   RO         3268    .ARM.Collect$$rtexit$$00000000  c_w.l(rtexit.o)
-    0x08000186   0x08000186   0x00000000   Code   RO         3299    .ARM.Collect$$rtexit$$00000002  c_w.l(rtexit2.o)
-    0x08000186   0x08000186   0x00000004   Code   RO         3300    .ARM.Collect$$rtexit$$00000003  c_w.l(rtexit2.o)
-    0x0800018a   0x0800018a   0x00000006   Code   RO         3301    .ARM.Collect$$rtexit$$00000004  c_w.l(rtexit2.o)
+    0x08000144   0x08000144   0x0000001c   Code   RO         3345    !!handler_zi        c_w.l(__scatter_zi.o)
+    0x08000160   0x08000160   0x00000000   Code   RO         3085    .ARM.Collect$$_printf_percent$$00000000  c_w.l(_printf_percent.o)
+    0x08000160   0x08000160   0x00000006   Code   RO         3084    .ARM.Collect$$_printf_percent$$00000009  c_w.l(_printf_d.o)
+    0x08000166   0x08000166   0x00000004   Code   RO         3154    .ARM.Collect$$_printf_percent$$00000017  c_w.l(_printf_percent_end.o)
+    0x0800016a   0x0800016a   0x00000002   Code   RO         3278    .ARM.Collect$$libinit$$00000000  c_w.l(libinit.o)
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+    0x0800016c   0x0800016c   0x00000000   Code   RO         3198    .ARM.Collect$$libinit$$0000002E  c_w.l(libinit2.o)
+    0x0800016c   0x0800016c   0x00000000   Code   RO         3200    .ARM.Collect$$libinit$$00000030  c_w.l(libinit2.o)
+    0x0800016c   0x0800016c   0x00000000   Code   RO         3202    .ARM.Collect$$libinit$$00000032  c_w.l(libinit2.o)
+    0x0800016c   0x0800016c   0x00000002   Code   RO         3203    .ARM.Collect$$libinit$$00000033  c_w.l(libinit2.o)
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+    0x080014e8   0x080014e8   0x0000009c   Code   RO         1826    i.HAL_TIM_PWM_Start  stm32f1xx_hal_tim.o
+    0x08001584   0x08001584   0x00000002   Code   RO         1832    i.HAL_TIM_PeriodElapsedCallback  stm32f1xx_hal_tim.o
+    0x08001586   0x08001586   0x00000002   Code   RO         1837    i.HAL_TIM_TriggerCallback  stm32f1xx_hal_tim.o
+    0x08001588   0x08001588   0x00000002   Code   RO          167    i.HardFault_Handler  stm32f1xx_it.o
+    0x0800158a   0x0800158a   0x0000002e   Code   RO          390    i.I2C_IsAcknowledgeFailed  stm32f1xx_hal_i2c.o
+    0x080015b8   0x080015b8   0x000000a8   Code   RO          401    i.I2C_RequestMemoryWrite  stm32f1xx_hal_i2c.o
+    0x08001660   0x08001660   0x0000004c   Code   RO          405    i.I2C_WaitOnBTFFlagUntilTimeout  stm32f1xx_hal_i2c.o
+    0x080016ac   0x080016ac   0x00000068   Code   RO          406    i.I2C_WaitOnFlagUntilTimeout  stm32f1xx_hal_i2c.o
+    0x08001714   0x08001714   0x00000096   Code   RO          407    i.I2C_WaitOnMasterAddressFlagUntilTimeout  stm32f1xx_hal_i2c.o
+    0x080017aa   0x080017aa   0x0000004c   Code   RO          409    i.I2C_WaitOnTXEFlagUntilTimeout  stm32f1xx_hal_i2c.o
     0x080017f6   0x080017f6   0x00000002   PAD
-    0x080017f8   0x080017f8   0x0000001c   Code   RO         2753    i.IIC_SAND_DATE     hread_interface.o
+    0x080017f8   0x080017f8   0x0000001c   Code   RO         2756    i.IIC_SAND_DATE     hread_interface.o
     0x08001814   0x08001814   0x000000dc   Code   RO           14    i.MX_GPIO_Init      main.o
     0x080018f0   0x080018f0   0x00000090   Code   RO           15    i.MX_TIM2_Init      main.o
-    0x08001980   0x08001980   0x00000002   Code   RO          165    i.MemManage_Handler  stm32f1xx_it.o
-    0x08001982   0x08001982   0x00000002   Code   RO          166    i.NMI_Handler       stm32f1xx_it.o
-    0x08001984   0x08001984   0x00000082   Code   RO         2829    i.OLED_AL           oled.o
-    0x08001a06   0x08001a06   0x00000002   PAD
-    0x08001a08   0x08001a08   0x00000068   Code   RO         2830    i.OLED_Ascii        oled.o
-    0x08001a70   0x08001a70   0x0000006c   Code   RO         2831    i.OLED_Cache_to_hardware  oled.o
-    0x08001adc   0x08001adc   0x0000008a   Code   RO         2833    i.OLED_Init         oled.o
-    0x08001b66   0x08001b66   0x00000028   Code   RO         2834    i.OLED_Init_Display_Buffer  oled.o
-    0x08001b8e   0x08001b8e   0x000000a4   Code   RO         2835    i.OLED_Pix          oled.o
-    0x08001c32   0x08001c32   0x00000024   Code   RO         2836    i.OLED_Set_Pos      oled.o
-    0x08001c56   0x08001c56   0x0000005e   Code   RO         2838    i.OLED_Str          oled.o
-    0x08001cb4   0x08001cb4   0x00000010   Code   RO         2840    i.OLED_WrCmd        oled.o
-    0x08001cc4   0x08001cc4   0x00000010   Code   RO         2841    i.OLED_WrDat        oled.o
-    0x08001cd4   0x08001cd4   0x0000003c   Code   RO         2842    i.OLED_set_dot      oled.o
-    0x08001d10   0x08001d10   0x00000002   Code   RO          167    i.PendSV_Handler    stm32f1xx_it.o
-    0x08001d12   0x08001d12   0x00000002   Code   RO          168    i.SVC_Handler       stm32f1xx_it.o
-    0x08001d14   0x08001d14   0x00000004   Code   RO          169    i.SysTick_Handler   stm32f1xx_it.o
-    0x08001d18   0x08001d18   0x0000005e   Code   RO           16    i.SystemClock_Config  main.o
-    0x08001d76   0x08001d76   0x00000002   Code   RO         2715    i.SystemInit        system_stm32f1xx.o
-    0x08001d78   0x08001d78   0x0000000c   Code   RO          170    i.TIM2_IRQHandler   stm32f1xx_it.o
-    0x08001d84   0x08001d84   0x0000006c   Code   RO         1836    i.TIM_Base_SetConfig  stm32f1xx_hal_tim.o
-    0x08001df0   0x08001df0   0x0000001a   Code   RO         1837    i.TIM_CCxChannelCmd  stm32f1xx_hal_tim.o
-    0x08001e0a   0x08001e0a   0x00000014   Code   RO         1847    i.TIM_ETR_SetConfig  stm32f1xx_hal_tim.o
-    0x08001e1e   0x08001e1e   0x00000010   Code   RO         1848    i.TIM_ITRx_SetConfig  stm32f1xx_hal_tim.o
-    0x08001e2e   0x08001e2e   0x00000002   PAD
-    0x08001e30   0x08001e30   0x00000050   Code   RO         1849    i.TIM_OC1_SetConfig  stm32f1xx_hal_tim.o
-    0x08001e80   0x08001e80   0x00000058   Code   RO         1850    i.TIM_OC2_SetConfig  stm32f1xx_hal_tim.o
-    0x08001ed8   0x08001ed8   0x00000058   Code   RO         1851    i.TIM_OC3_SetConfig  stm32f1xx_hal_tim.o
-    0x08001f30   0x08001f30   0x00000044   Code   RO         1852    i.TIM_OC4_SetConfig  stm32f1xx_hal_tim.o
-    0x08001f74   0x08001f74   0x00000022   Code   RO         1854    i.TIM_TI1_ConfigInputStage  stm32f1xx_hal_tim.o
-    0x08001f96   0x08001f96   0x00000024   Code   RO         1856    i.TIM_TI2_ConfigInputStage  stm32f1xx_hal_tim.o
-    0x08001fba   0x08001fba   0x00000002   Code   RO          171    i.UsageFault_Handler  stm32f1xx_it.o
-    0x08001fbc   0x08001fbc   0x00000020   Code   RO         1254    i.__NVIC_SetPriority  stm32f1xx_hal_cortex.o
-    0x08001fdc   0x08001fdc   0x00000050   Code   RO         2936    i.buzzer_play_server  buzzer.o
-    0x0800202c   0x0800202c   0x00000028   Code   RO         2937    i.delhead           buzzer.o
-    0x08002054   0x08002054   0x0000004c   Code   RO           17    i.main              main.o
-    0x080020a0   0x080020a0   0x000000c4   Code   RO         2787    i.mymain            mymain.o
-    0x08002164   0x08002164   0x00000044   Code   RO         2938    i.play_ones         buzzer.o
-    0x080021a8   0x080021a8   0x00000184   Code   RO         3092    x$fpl$fdiv          fz_ws.l(fdiv.o)
-    0x0800232c   0x0800232c   0x0000003e   Code   RO         3095    x$fpl$ffixu         fz_ws.l(ffixu.o)
-    0x0800236a   0x0800236a   0x00000002   PAD
-    0x0800236c   0x0800236c   0x00000030   Code   RO         3100    x$fpl$fflt          fz_ws.l(fflt_clz.o)
-    0x0800239c   0x0800239c   0x00000026   Code   RO         3099    x$fpl$ffltu         fz_ws.l(fflt_clz.o)
-    0x080023c2   0x080023c2   0x00000002   PAD
-    0x080023c4   0x080023c4   0x00000102   Code   RO         3105    x$fpl$fmul          fz_ws.l(fmul.o)
-    0x080024c6   0x080024c6   0x0000008c   Code   RO         3195    x$fpl$fnaninf       fz_ws.l(fnaninf.o)
-    0x08002552   0x08002552   0x0000000a   Code   RO         3197    x$fpl$fretinf       fz_ws.l(fretinf.o)
-    0x0800255c   0x0800255c   0x00000000   Code   RO         3199    x$fpl$usenofp       fz_ws.l(usenofp.o)
-    0x0800255c   0x0800255c   0x00000010   Data   RO         2716    .constdata          system_stm32f1xx.o
-    0x0800256c   0x0800256c   0x00000008   Data   RO         2717    .constdata          system_stm32f1xx.o
-    0x08002574   0x08002574   0x00000d5c   Data   RO         2844    .constdata          oled.o
-    0x080032d0   0x080032d0   0x00000020   Data   RO         3326    Region$$Table       anon$$obj.o
+    0x08001980   0x08001980   0x00000002   Code   RO          168    i.MemManage_Handler  stm32f1xx_it.o
+    0x08001982   0x08001982   0x00000002   Code   RO          169    i.NMI_Handler       stm32f1xx_it.o
+    0x08001984   0x08001984   0x00000068   Code   RO         2837    i.OLED_Ascii        oled.o
+    0x080019ec   0x080019ec   0x0000006c   Code   RO         2838    i.OLED_Cache_to_hardware  oled.o
+    0x08001a58   0x08001a58   0x0000008a   Code   RO         2840    i.OLED_Init         oled.o
+    0x08001ae2   0x08001ae2   0x00000028   Code   RO         2841    i.OLED_Init_Display_Buffer  oled.o
+    0x08001b0a   0x08001b0a   0x000000a4   Code   RO         2842    i.OLED_Pix          oled.o
+    0x08001bae   0x08001bae   0x00000024   Code   RO         2843    i.OLED_Set_Pos      oled.o
+    0x08001bd2   0x08001bd2   0x0000005e   Code   RO         2845    i.OLED_Str          oled.o
+    0x08001c30   0x08001c30   0x00000010   Code   RO         2847    i.OLED_WrCmd        oled.o
+    0x08001c40   0x08001c40   0x00000010   Code   RO         2848    i.OLED_WrDat        oled.o
+    0x08001c50   0x08001c50   0x0000003c   Code   RO         2849    i.OLED_set_dot      oled.o
+    0x08001c8c   0x08001c8c   0x00000002   Code   RO          170    i.PendSV_Handler    stm32f1xx_it.o
+    0x08001c8e   0x08001c8e   0x00000002   Code   RO          171    i.SVC_Handler       stm32f1xx_it.o
+    0x08001c90   0x08001c90   0x00000004   Code   RO          172    i.SysTick_Handler   stm32f1xx_it.o
+    0x08001c94   0x08001c94   0x0000005e   Code   RO           16    i.SystemClock_Config  main.o
+    0x08001cf2   0x08001cf2   0x00000002   Code   RO         2718    i.SystemInit        system_stm32f1xx.o
+    0x08001cf4   0x08001cf4   0x0000000c   Code   RO          173    i.TIM2_IRQHandler   stm32f1xx_it.o
+    0x08001d00   0x08001d00   0x0000006c   Code   RO         1839    i.TIM_Base_SetConfig  stm32f1xx_hal_tim.o
+    0x08001d6c   0x08001d6c   0x0000001a   Code   RO         1840    i.TIM_CCxChannelCmd  stm32f1xx_hal_tim.o
+    0x08001d86   0x08001d86   0x00000014   Code   RO         1850    i.TIM_ETR_SetConfig  stm32f1xx_hal_tim.o
+    0x08001d9a   0x08001d9a   0x00000010   Code   RO         1851    i.TIM_ITRx_SetConfig  stm32f1xx_hal_tim.o
+    0x08001daa   0x08001daa   0x00000002   PAD
+    0x08001dac   0x08001dac   0x00000050   Code   RO         1852    i.TIM_OC1_SetConfig  stm32f1xx_hal_tim.o
+    0x08001dfc   0x08001dfc   0x00000058   Code   RO         1853    i.TIM_OC2_SetConfig  stm32f1xx_hal_tim.o
+    0x08001e54   0x08001e54   0x00000058   Code   RO         1854    i.TIM_OC3_SetConfig  stm32f1xx_hal_tim.o
+    0x08001eac   0x08001eac   0x00000044   Code   RO         1855    i.TIM_OC4_SetConfig  stm32f1xx_hal_tim.o
+    0x08001ef0   0x08001ef0   0x00000022   Code   RO         1857    i.TIM_TI1_ConfigInputStage  stm32f1xx_hal_tim.o
+    0x08001f12   0x08001f12   0x00000024   Code   RO         1859    i.TIM_TI2_ConfigInputStage  stm32f1xx_hal_tim.o
+    0x08001f36   0x08001f36   0x00000002   Code   RO          174    i.UsageFault_Handler  stm32f1xx_it.o
+    0x08001f38   0x08001f38   0x00000020   Code   RO         1257    i.__NVIC_SetPriority  stm32f1xx_hal_cortex.o
+    0x08001f58   0x08001f58   0x00000050   Code   RO         2949    i.buzzer_play_server  buzzer.o
+    0x08001fa8   0x08001fa8   0x00000028   Code   RO         2950    i.delhead           buzzer.o
+    0x08001fd0   0x08001fd0   0x0000004c   Code   RO           17    i.main              main.o
+    0x0800201c   0x0800201c   0x0000008c   Code   RO         2790    i.mymain            mymain.o
+    0x080020a8   0x080020a8   0x00000044   Code   RO         2951    i.play_ones         buzzer.o
+    0x080020ec   0x080020ec   0x00000184   Code   RO         3105    x$fpl$fdiv          fz_ws.l(fdiv.o)
+    0x08002270   0x08002270   0x0000003e   Code   RO         3108    x$fpl$ffixu         fz_ws.l(ffixu.o)
+    0x080022ae   0x080022ae   0x00000002   PAD
+    0x080022b0   0x080022b0   0x00000030   Code   RO         3113    x$fpl$fflt          fz_ws.l(fflt_clz.o)
+    0x080022e0   0x080022e0   0x00000026   Code   RO         3112    x$fpl$ffltu         fz_ws.l(fflt_clz.o)
+    0x08002306   0x08002306   0x00000002   PAD
+    0x08002308   0x08002308   0x00000102   Code   RO         3118    x$fpl$fmul          fz_ws.l(fmul.o)
+    0x0800240a   0x0800240a   0x0000008c   Code   RO         3208    x$fpl$fnaninf       fz_ws.l(fnaninf.o)
+    0x08002496   0x08002496   0x0000000a   Code   RO         3210    x$fpl$fretinf       fz_ws.l(fretinf.o)
+    0x080024a0   0x080024a0   0x00000000   Code   RO         3212    x$fpl$usenofp       fz_ws.l(usenofp.o)
+    0x080024a0   0x080024a0   0x00000010   Data   RO         2719    .constdata          system_stm32f1xx.o
+    0x080024b0   0x080024b0   0x00000008   Data   RO         2720    .constdata          system_stm32f1xx.o
+    0x080024b8   0x080024b8   0x00000d5c   Data   RO         2852    .constdata          oled.o
+    0x08003214   0x08003214   0x00000020   Data   RO         3339    Region$$Table       anon$$obj.o
 
 
-    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x080032f0, Size: 0x00000f18, Max: 0x00005000, ABSOLUTE)
+    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08003234, Size: 0x00000f18, Max: 0x00005000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x20000000   0x080032f0   0x0000000c   Data   RW          791    .data               stm32f1xx_hal.o
-    0x2000000c   0x080032fc   0x00000004   Data   RW         2718    .data               system_stm32f1xx.o
-    0x20000010   0x08003300   0x0000000c   Data   RW         2939    .data               buzzer.o
+    0x20000000   0x08003234   0x0000000c   Data   RW          794    .data               stm32f1xx_hal.o
+    0x2000000c   0x08003240   0x00000004   Data   RW         2721    .data               system_stm32f1xx.o
+    0x20000010   0x08003244   0x0000000c   Data   RW         2952    .data               buzzer.o
     0x2000001c        -       0x0000009c   Zero   RW           18    .bss                main.o
-    0x200000b8        -       0x00000800   Zero   RW         2843    .bss                oled.o
-    0x200008b8        -       0x00000060   Zero   RW         3203    .bss                c_w.l(libspace.o)
+    0x200000b8        -       0x00000800   Zero   RW         2851    .bss                oled.o
+    0x200008b8        -       0x00000060   Zero   RW         3216    .bss                c_w.l(libspace.o)
     0x20000918        -       0x00000200   Zero   RW            2    HEAP                startup_stm32f103xb.o
     0x20000b18        -       0x00000400   Zero   RW            1    STACK               startup_stm32f103xb.o
 
@@ -2021,8 +2020,8 @@ Image component sizes
        188         20          0         12          0       1839   buzzer.o
         28          6          0          0          0        920   hread_interface.o
        534         32          0          0        156     427886   main.o
-       196         30          0          0          0       1029   mymain.o
-       906         30       3420          0       2048       8454   oled.o
+       140         20          0          0          0       1029   mymain.o
+       776         28       3420          0       2048       7444   oled.o
         64         26        236          0       1536        816   startup_stm32f103xb.o
        128         24          0         12          0       5325   stm32f1xx_hal.o
        198         14          0          0          0      28959   stm32f1xx_hal_cortex.o
@@ -2036,9 +2035,9 @@ Image component sizes
          2          0         24          4          0       1131   system_stm32f1xx.o
 
     ----------------------------------------------------------------------
-      7424        436       3712         28       3740     519084   Object Totals
+      7236        424       3712         28       3740     518074   Object Totals
          0          0         32          0          0          0   (incl. Generated)
-        16          0          0          0          0          0   (incl. Padding)
+        14          0          0          0          0          0   (incl. Padding)
 
     ----------------------------------------------------------------------
 
@@ -2105,15 +2104,15 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   
 
-      9328        572       3712         28       3836     515808   Grand Totals
-      9328        572       3712         28       3836     515808   ELF Image Totals
-      9328        572       3712         28          0          0   ROM Totals
+      9140        560       3712         28       3836     514850   Grand Totals
+      9140        560       3712         28       3836     514850   ELF Image Totals
+      9140        560       3712         28          0          0   ROM Totals
 
 ==============================================================================
 
-    Total RO  Size (Code + RO Data)                13040 (  12.73kB)
+    Total RO  Size (Code + RO Data)                12852 (  12.55kB)
     Total RW  Size (RW Data + ZI Data)              3864 (   3.77kB)
-    Total ROM Size (Code + RO Data + RW Data)      13068 (  12.76kB)
+    Total ROM Size (Code + RO Data + RW Data)      12880 (  12.58kB)
 
 ==============================================================================
 
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL_f103c8t6_KEIL.dep b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL_f103c8t6_KEIL.dep
index 16a033d..9449bef 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL_f103c8t6_KEIL.dep
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL_f103c8t6_KEIL.dep
@@ -30,10 +30,11 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h)(0x625E1C31)
-I (./MYDEIVERS/mymain.h)(0x625E1C31)
-I (./MYDEIVERS/oled.h)(0x625FE0FC)
+I (./MYDEIVERS/mymain.h)(0x62610F7B)
+I (./MYDEIVERS/oled.h)(0x6260F46E)
 I (./MYDEIVERS/hread_interface.h)(0x625E1C31)
 I (./MYDEIVERS/buzzer.h)(0x625E1C31)
+I (./MYDEIVERS/encode.h)(0x62611064)
 F (../Core/Src/stm32f1xx_it.c)(0x625E1C31)(--c99 -c --cpu Cortex-M3 -D__EVAL -g -O3 --apcs=interwork --split_sections -I ../Core/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy -I ../Drivers/CMSIS/Device/ST/STM32F1xx/Include -I ../Drivers/CMSIS/Include -I ./MYDEIVERS

-I.\RTE\_f103c8t6_KEIL

-IC:\Users\kevin\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\kevin\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.4.0\Device\Include

-D__UVISION_VERSION="536" -D_RTE_ -DSTM32F10X_MD -D_RTE_ -DUSE_HAL_DRIVER -DSTM32F103xB

-o f103c8t6_keil\stm32f1xx_it.o --omf_browse f103c8t6_keil\stm32f1xx_it.crf --depend f103c8t6_keil\stm32f1xx_it.d)
 I (../Core/Inc/main.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h)(0x625E1C31)
@@ -543,8 +544,8 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h)(0x625E1C31)
-F (.\MYDEIVERS\mymain.c)(0x625FE282)(--c99 -c --cpu Cortex-M3 -D__EVAL -g -O3 --apcs=interwork --split_sections -I ../Core/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy -I ../Drivers/CMSIS/Device/ST/STM32F1xx/Include -I ../Drivers/CMSIS/Include -I ./MYDEIVERS

-I.\RTE\_f103c8t6_KEIL

-IC:\Users\kevin\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\kevin\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.4.0\Device\Include

-D__UVISION_VERSION="536" -D_RTE_ -DSTM32F10X_MD -D_RTE_ -DUSE_HAL_DRIVER -DSTM32F103xB

-o f103c8t6_keil\mymain.o --omf_browse f103c8t6_keil\mymain.crf --depend f103c8t6_keil\mymain.d)
-I (MYDEIVERS\mymain.h)(0x625E1C31)
+F (.\MYDEIVERS\mymain.c)(0x626110F4)(--c99 -c --cpu Cortex-M3 -D__EVAL -g -O3 --apcs=interwork --split_sections -I ../Core/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy -I ../Drivers/CMSIS/Device/ST/STM32F1xx/Include -I ../Drivers/CMSIS/Include -I ./MYDEIVERS

-I.\RTE\_f103c8t6_KEIL

-IC:\Users\kevin\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\kevin\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.4.0\Device\Include

-D__UVISION_VERSION="536" -D_RTE_ -DSTM32F10X_MD -D_RTE_ -DUSE_HAL_DRIVER -DSTM32F103xB

-o f103c8t6_keil\mymain.o --omf_browse f103c8t6_keil\mymain.crf --depend f103c8t6_keil\mymain.d)
+I (MYDEIVERS\mymain.h)(0x62610F7B)
 I (../Core/Inc/main.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h)(0x625E1C31)
 I (../Core/Inc/stm32f1xx_hal_conf.h)(0x625E1C31)
@@ -573,11 +574,12 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h)(0x625E1C31)
-I (MYDEIVERS\oled.h)(0x625FE0FC)
+I (MYDEIVERS\oled.h)(0x6260F46E)
 I (MYDEIVERS\hread_interface.h)(0x625E1C31)
 I (MYDEIVERS\buzzer.h)(0x625E1C31)
-F (.\MYDEIVERS\oled.c)(0x625FE2FC)(--c99 -c --cpu Cortex-M3 -D__EVAL -g -O3 --apcs=interwork --split_sections -I ../Core/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy -I ../Drivers/CMSIS/Device/ST/STM32F1xx/Include -I ../Drivers/CMSIS/Include -I ./MYDEIVERS

-I.\RTE\_f103c8t6_KEIL

-IC:\Users\kevin\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\kevin\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.4.0\Device\Include

-D__UVISION_VERSION="536" -D_RTE_ -DSTM32F10X_MD -D_RTE_ -DUSE_HAL_DRIVER -DSTM32F103xB

-o f103c8t6_keil\oled.o --omf_browse f103c8t6_keil\oled.crf --depend f103c8t6_keil\oled.d)
-I (MYDEIVERS\oled.h)(0x625FE0FC)
+I (MYDEIVERS\encode.h)(0x62611064)
+F (.\MYDEIVERS\oled.c)(0x6260F6F9)(--c99 -c --cpu Cortex-M3 -D__EVAL -g -O3 --apcs=interwork --split_sections -I ../Core/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc -I ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy -I ../Drivers/CMSIS/Device/ST/STM32F1xx/Include -I ../Drivers/CMSIS/Include -I ./MYDEIVERS

-I.\RTE\_f103c8t6_KEIL

-IC:\Users\kevin\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\kevin\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.4.0\Device\Include

-D__UVISION_VERSION="536" -D_RTE_ -DSTM32F10X_MD -D_RTE_ -DUSE_HAL_DRIVER -DSTM32F103xB

-o f103c8t6_keil\oled.o --omf_browse f103c8t6_keil\oled.crf --depend f103c8t6_keil\oled.d)
+I (MYDEIVERS\oled.h)(0x6260F46E)
 I (../Core/Inc/main.h)(0x625E1C31)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h)(0x625E1C31)
 I (../Core/Inc/stm32f1xx_hal_conf.h)(0x625E1C31)
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf
index c223b7b..e494182 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.d b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.d
index 4befe30..797fe18 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.d
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.d
@@ -32,3 +32,4 @@ f103c8t6_keil\main.o: ./MYDEIVERS/mymain.h
 f103c8t6_keil\main.o: ./MYDEIVERS/oled.h
 f103c8t6_keil\main.o: ./MYDEIVERS/hread_interface.h
 f103c8t6_keil\main.o: ./MYDEIVERS/buzzer.h
+f103c8t6_keil\main.o: ./MYDEIVERS/encode.h
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.o b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.o
index e4641f7..76ca342 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.o and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.o differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.crf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.crf
index 53465b0..6fa6928 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.crf and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.crf differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.d b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.d
index d4e69f0..a4b96a8 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.d
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.d
@@ -32,3 +32,4 @@ f103c8t6_keil\mymain.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex
 f103c8t6_keil\mymain.o: MYDEIVERS\oled.h
 f103c8t6_keil\mymain.o: MYDEIVERS\hread_interface.h
 f103c8t6_keil\mymain.o: MYDEIVERS\buzzer.h
+f103c8t6_keil\mymain.o: MYDEIVERS\encode.h
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.o b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.o
index 5b0682b..b58934d 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.o and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.o differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.crf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.crf
index d3a2bcd..dba36a1 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.crf and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.crf differ
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o
index e3aa050..e965752 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o differ