diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
index 837446c..686ce67 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/mymain.c
@@ -7,19 +7,34 @@
 #include "mymain.h"
 #include "hread_interface.h"
 
+
+const char testbmp[]=
+{
+0x00,0x00,0x00,0x00,0x16,0x1D,0x10,0x18,0x08,0x0C,0x06,0x07,0x02,0x03,0x02,0x02,
+0x06,0x05,0x05,0x0D,0x79,0x51,0xC1,0x73,0x1D,0x07,0x03,0x03,0x00,0x00,0x00,0x00,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x93,0xFF,0x2C,0x19,0x11,0x33,0x22,0x26,
+0x64,0x44,0x4C,0xC8,0xC8,0x58,0x90,0x11,0x90,0xB0,0x30,0x20,0x30,0x20,0x60,0xC0,
+0xE6,0x3F,0x1F,0x03,0x01,0x00,0x00,0x00,0x00,0x01,0x1F,0x7E,0xFF,0xC0,0x80,0x80,
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xE0,0x00,0x00,0x00,
+0x00,0x20,0x30,0x70,0x51,0x7D,0x57,0xF1,0xE1,0x7B,0x0F,0x07,0x7B,0xE3,0x07,0xBF,
+0xFF,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,
+0x03,0x03,0x63,0x43,0xC3,0xC3,0x8B,0x9F,0xBB,0x23,0xB3,0x23,0x63,0x43,0xC3,0x03
+};
+
+
 void mymain()
 {
 uint32_t run_tick=0;
 	
 	OLED_Init();
 	
-	
-	
+
+	OLED_Pix(0,0,36,32,testbmp);
 	while(1)
 	{
 
 		
-		OLED_Cache_to_hardware();
+		//OLED_Cache_to_hardware();
 		if(HAL_GetTick()>run_tick)
 		{
 				run_tick+=500;
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
index 94cacb3..e7bec80 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.c
@@ -65,6 +65,12 @@ void OLED_Setting_luminance(unsigned char a)
 }
 /*
 初始化OLED
+
+硬件扫描方式
+
+从左到右从上到下
+纵向8点上高位
+
 */
 void OLED_Init(void)
 {
@@ -131,7 +137,7 @@ void OLED_Cache_to_hardware()
 
 
 //16*16 ASCII字符集点阵
-const unsigned char asc2_1608[95][16]={
+const char asc2_1608[95][16]={
 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/
 {0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xCC,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00},/*"!",1*/
 {0x00,0x00,0x08,0x00,0x30,0x00,0x60,0x00,0x08,0x00,0x30,0x00,0x60,0x00,0x00,0x00},/*""",2*/
@@ -228,6 +234,48 @@ const unsigned char asc2_1608[95][16]={
 {0x00,0x00,0x40,0x02,0x40,0x02,0x3E,0xFC,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"}",93*/
 {0x00,0x00,0x60,0x00,0x80,0x00,0x80,0x00,0x40,0x00,0x40,0x00,0x20,0x00,0x20,0x00},/*"~",94*/
 };
+
+/*
+打点函数
+打点类型
+dot_type=0 清除点
+				=1 打点
+				=2 取反点
+*/
+void OLED_set_dot(unsigned char x,unsigned char y,unsigned char dot_type)
+{
+	if(x>=X_WIDTH||y>=Y_WIDTH)
+	{
+		return ;
+	}
+	uint8_t y1=y/8;
+	switch(dot_type)
+	{
+		case 0:
+			OLED_buff[y1][x] &= ~(1<<(y%8));
+			break;
+		case 1:
+			OLED_buff[y1][x] |= (1<<(y%8));
+			break;
+		case 2:
+			OLED_buff[y1][x] ^= (1<<(y%8));
+			break;
+		case 3:break;
+	}
+	
+}
+/*
+绘图函数
+
+*/
+void OLED_Pix(unsigned char x,unsigned char y,unsigned char w,unsigned char h,const char *p)
+{
+	OLED_Set_Pos(0,0);
+	for(int a=0;a<36;a++)
+	{
+		OLED_WrDat(p[a]);
+	}
+}
 void OLED_ShowChar(unsigned char x,unsigned char y,unsigned char chr)
 {
 	OLED_Set_Pos(x,y);
diff --git a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
index 105f866..2585420 100644
--- a/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
+++ b/f103c8t6_keil/MDK-ARM/MYDEIVERS/oled.h
@@ -21,6 +21,9 @@ void OLED_Init(void);
 
 void OLED_Cache_to_hardware();
 
+void OLED_set_dot(unsigned char x,unsigned char y,unsigned char dot_type);
+void OLED_Pix(unsigned char x,unsigned char y,unsigned char w,unsigned char h,const char *p);
+
 void OLED_ShowStr(unsigned char x,unsigned char y,char *str);
 
 #endif /* OLED_H_ */
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.wuwen b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.wuwen
index 5235c3f..5e9d274 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.wuwen
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL.uvguix.wuwen
@@ -93,25 +93,25 @@
       <flags>0</flags>
       <showCmd>1</showCmd>
       <MinPosition>
-        <xPos>-32000</xPos>
-        <yPos>-32000</yPos>
+        <xPos>-1</xPos>
+        <yPos>-1</yPos>
       </MinPosition>
       <MaxPosition>
         <xPos>-1</xPos>
         <yPos>-1</yPos>
       </MaxPosition>
       <NormalPosition>
-        <Top>212</Top>
-        <Left>490</Left>
-        <Right>3070</Right>
-        <Bottom>1241</Bottom>
+        <Top>304</Top>
+        <Left>1449</Left>
+        <Right>4029</Right>
+        <Bottom>1333</Bottom>
       </NormalPosition>
     </WindowPosition>
     <MDIClientArea>
       <RegID>0</RegID>
       <MDITabState>
         <Len>1049</Len>
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       </MDITabState>
     </MDIClientArea>
     <ViewEx>
@@ -134,7 +134,7 @@
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
-          <Data>A403000042010000F60B000008020000</Data>
+          <Data>8404000094010000D60C00005A020000</Data>
         </RectRecentFloat>
       </Window>
       <Window>
@@ -530,7 +530,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000001C030000010A0000B2030000</Data>
+          <Data>030000001C030000B3060000B2030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1150,7 +1150,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000AB010000E8020000</Data>
+          <Data>0300000066000000AB01000062040000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1170,7 +1170,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000001C030000010A0000B2030000</Data>
+          <Data>030000001C030000B3060000B2030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1190,7 +1190,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000001C030000010A0000B2030000</Data>
+          <Data>030000001C030000B3060000B2030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1250,7 +1250,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000001C030000010A0000B2030000</Data>
+          <Data>030000001C030000B3060000B2030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1270,7 +1270,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>030000001C030000010A0000B2030000</Data>
+          <Data>030000001C030000B3060000B2030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1799,7 +1799,7 @@
       </Window>
       <DockMan>
         <Len>3312</Len>
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@@ -1865,8 +1865,8 @@
       <ActiveTab>3</ActiveTab>
       <Doc>
         <Name>../Core/Src/main.c</Name>
-        <ColumnNumber>3</ColumnNumber>
-        <TopLine>67</TopLine>
+        <ColumnNumber>4</ColumnNumber>
+        <TopLine>52</TopLine>
         <CurrentLine>91</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
@@ -1874,9 +1874,9 @@
       </Doc>
       <Doc>
         <Name>.\MYDEIVERS\mymain.c</Name>
-        <ColumnNumber>29</ColumnNumber>
+        <ColumnNumber>79</ColumnNumber>
         <TopLine>1</TopLine>
-        <CurrentLine>22</CurrentLine>
+        <CurrentLine>21</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
@@ -1892,9 +1892,9 @@
       </Doc>
       <Doc>
         <Name>.\MYDEIVERS\oled.c</Name>
-        <ColumnNumber>8</ColumnNumber>
-        <TopLine>89</TopLine>
-        <CurrentLine>115</CurrentLine>
+        <ColumnNumber>7</ColumnNumber>
+        <TopLine>60</TopLine>
+        <CurrentLine>72</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
@@ -1919,9 +1919,9 @@
       </Doc>
       <Doc>
         <Name>./MYDEIVERS/oled.h</Name>
-        <ColumnNumber>30</ColumnNumber>
+        <ColumnNumber>13</ColumnNumber>
         <TopLine>1</TopLine>
-        <CurrentLine>22</CurrentLine>
+        <CurrentLine>25</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
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diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.axf
index 27aeba2..ca93970 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 a5524f9..f303362 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
@@ -32,7 +32,7 @@ MYDEIVERS\oled.h(22): warning:  #1295-D: Deprecated declaration OLED_Cache_to_ha
   void OLED_Cache_to_hardware();
 MYDEIVERS\oled.c: 1 warning, 0 errors
 linking...
-Program Size: Code=4656 RO-data=292 RW-data=16 ZI-data=2744  
+Program Size: Code=4652 RO-data=436 RW-data=16 ZI-data=1720  
 FromELF: creating hex file...
 "f103c8t6_KEIL\f103c8t6_KEIL.axf" - 0 Error(s), 1 Warning(s).
 
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.hex
index 5bb1158..36b38cc 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 @@
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-:1012F0000024FFF719FF4FF40045074EFFF7FAFEF1
-:10130000FFF7C6F8A042F9D92946304604F5FA7429
-:10131000FFF7B0F8F2E70000000C01400000000009
-:101320000000000001020304060708090000000095
-:101330000102030454130008000000201000000004
-:10134000280100086413000810000020B80A0000FB
-:10135000440100080100000010000000000000002F
-:041360000024F40071
+:1010F000FEE7FEE710B5AE2000F075F8D52000F051
+:1011000072F8502000F06FF8A82000F06CF83F2033
+:1011100000F069F8D32000F066F8002000F063F8D2
+:10112000402000F060F88D2000F05DF8142000F001
+:101130005AF8202000F057F8022000F054F8A120BF
+:1011400000F051F8C02000F04EF8D92000F04BF824
+:10115000F12000F048F8DB2000F045F8302000F0E6
+:1011600042F8A42000F03FF8A62000F03CF8AF20A1
+:1011700000F039F8BDE810400020AFF3008070B5F2
+:10118000064600242146002000F01BF800253046CA
+:1011900000F031F86D1CEDB2802DF8D3641CE4B280
+:1011A000082CEFD370BD70B500210846049D00F0F7
+:1011B00008F80024285D00F01EF8641C242CF9DBDC
+:1011C00070BD10B50446C1F1B700C0B200F00BF815
+:1011D000102040EA141000F006F804F00F00BDE8FB
+:1011E0001040AFF3008001B56A460123002178204A
+:1011F000FFF720FF08BD01B56A4601234021782092
+:10120000FFF718FF08BD70477047FFF7D1BA30B538
+:101210008FB028216846FEF7D7FF14210AA8FEF7F1
+:10122000D3FF01210804CDE9001000240294022517
+:101230000491CDE907504FF4E01009906846FFF79C
+:101240001DFC08B172B6FEE70F20CDE90A054FF488
+:101250008060CDE90C4002210AA80E94FFF732FB12
+:10126000002801D072B6FEE70FB030BD7047FEE730
+:101270000907090E002804DB00F1E02080F80014C3
+:10128000704700F00F0000F1E02080F8141D704757
+:10129000FFF796FAFFF7BBFFFFF7DAFE0C480B49A2
+:1012A0004FF4804201600B49416000218160C0E938
+:1012B000031241618161C1610162FFF7EFF808B17A
+:1012C00072B6FEE700F008F8FEE7000000540040A8
+:1012D00010000020A086010008B50024FFF70AFFD7
+:1012E0000B4800210090202324220846FFF75BFFD3
+:1012F000084E4FF4004500BFFFF7CAF8A042FBD9E3
+:101300002946304604F5FA74FFF7B4F8F4E7000014
+:1013100030130008000C0140000000000000000035
+:10132000010203040607080900000000010203048B
+:1013300000000000161D1018080C06070203020228
+:101340000605050D7951C1731D0703030000000058
+:10135000000000000000000093FF2C19113322262A
+:1013600064444CC8C858901190B03020302060C000
+:10137000E63F1F030100000000011F7EFFC08080C8
+:101380000000000000000000000000E0E00000009D
+:1013900000203070517D57F1E17B0F077BE307BFE1
+:1013A000FF03030303030303030303030303030311
+:1013B00003036343C3C38B9FBB23B3236343C303B1
+:1013C000E0130008000000201000000028010008C1
+:1013D000F013000810000020B806000044010008C7
+:1013E0000100000010000000000000000024F400D4
 :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 3384d70..734254b 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.htm
@@ -3,11 +3,11 @@
 <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: Fri Apr 15 17:38:20 2022
+<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060960: Last Updated: Fri Apr 15 22:54:34 2022
 <BR><P>
 <H3>Maximum Stack Usage =        192 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
+__rt_entry_main &rArr; main &rArr; mymain &rArr; OLED_Pix &rArr; OLED_Set_Pos &rArr; OLED_WrCmd &rArr; IIC_SAND_DATE &rArr; HAL_I2C_Mem_Write &rArr; I2C_RequestMemoryWrite &rArr; I2C_WaitOnMasterAddressFlagUntilTimeout
 <P>
 <H3>
 Functions with no stack information
@@ -202,7 +202,7 @@ Global Symbols
 
 <P><STRONG><a name="[43]"></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 = 192 + 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
+<LI>Call Chain = __rt_entry_main &rArr; main &rArr; mymain &rArr; OLED_Pix &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="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 <LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;exit
@@ -574,8 +574,8 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_I2C_Mem_Write
 </UL>
-<BR>[Called By]<UL><LI><a href="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Called By]<UL><LI><a href="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
 
 <P><STRONG><a name="[6]"></a>MemManage_Handler</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.MemManage_Handler))
@@ -592,53 +592,53 @@ Global Symbols
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[66]"></a>OLED_Cache_to_hardware</STRONG> (Thumb, 48 bytes, Stack size 24 bytes, oled.o(i.OLED_Cache_to_hardware))
-<BR><BR>[Stack]<UL><LI>Max Depth = 192<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="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
-</UL>
-<BR>[Called By]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
-</UL>
-
-<P><STRONG><a name="[69]"></a>OLED_Init</STRONG> (Thumb, 138 bytes, Stack size 8 bytes, oled.o(i.OLED_Init))
+<P><STRONG><a name="[66]"></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="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Calls]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
 <BR>[Called By]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 </UL>
 
-<P><STRONG><a name="[6b]"></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="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
-<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+<P><STRONG><a name="[68]"></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="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
 </UL>
 
-<P><STRONG><a name="[67]"></a>OLED_Set_Pos</STRONG> (Thumb, 36 bytes, Stack size 8 bytes, oled.o(i.OLED_Set_Pos))
+<P><STRONG><a name="[6b]"></a>OLED_Pix</STRONG> (Thumb, 28 bytes, Stack size 16 bytes, oled.o(i.OLED_Pix))
+<BR><BR>[Stack]<UL><LI>Max Depth = 184<LI>Call Chain = OLED_Pix &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="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrDat
+<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+</UL>
+<BR>[Called By]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
+</UL>
+
+<P><STRONG><a name="[69]"></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="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
+<BR>[Calls]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_WrCmd
 </UL>
-<BR>[Called By]<UL><LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
-<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
+<BR>[Called By]<UL><LI><a href="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
+<LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
 </UL>
 
-<P><STRONG><a name="[6a]"></a>OLED_WrCmd</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrCmd))
+<P><STRONG><a name="[67]"></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="#[63]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;IIC_SAND_DATE
 </UL>
-<BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
-<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
+<BR>[Called By]<UL><LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Set_Pos
+<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
 </UL>
 
-<P><STRONG><a name="[68]"></a>OLED_WrDat</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, oled.o(i.OLED_WrDat))
+<P><STRONG><a name="[6a]"></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="#[63]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;IIC_SAND_DATE
 </UL>
-<BR>[Called By]<UL><LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
-<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
+<BR>[Called By]<UL><LI><a href="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init_Display_Buffer
+<LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
 </UL>
 
 <P><STRONG><a name="[b]"></a>PendSV_Handler</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.PendSV_Handler))
@@ -673,7 +673,7 @@ Global Symbols
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[44]"></a>main</STRONG> (Thumb, 58 bytes, Stack size 0 bytes, main.o(i.main))
-<BR><BR>[Stack]<UL><LI>Max Depth = 192<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
+<BR><BR>[Stack]<UL><LI>Max Depth = 192<LI>Call Chain = main &rArr; mymain &rArr; OLED_Pix &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="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;mymain
 <LI><a href="#[57]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Init
@@ -684,13 +684,13 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_entry_main
 </UL>
 
-<P><STRONG><a name="[6f]"></a>mymain</STRONG> (Thumb, 38 bytes, Stack size 0 bytes, mymain.o(i.mymain))
-<BR><BR>[Stack]<UL><LI>Max Depth = 192<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
+<P><STRONG><a name="[6f]"></a>mymain</STRONG> (Thumb, 54 bytes, Stack size 8 bytes, mymain.o(i.mymain))
+<BR><BR>[Stack]<UL><LI>Max Depth = 192<LI>Call Chain = mymain &rArr; OLED_Pix &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="#[51]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 <LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_TogglePin
-<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
-<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Cache_to_hardware
+<LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Pix
+<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;OLED_Init
 </UL>
 <BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
index 6af853b..3d019a0 100644
--- a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
+++ b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/f103c8t6_KEIL.map
@@ -285,9 +285,10 @@ Section Cross References
     hread_interface.o(i.IIC_SAND_DATE) refers to stm32f1xx_hal_i2c.o(i.HAL_I2C_Mem_Write) for HAL_I2C_Mem_Write
     hread_interface.o(i.IIC_SAND_DATE) refers to main.o(.bss) for hi2c1
     mymain.o(i.mymain) refers to oled.o(i.OLED_Init) for OLED_Init
-    mymain.o(i.mymain) refers to oled.o(i.OLED_Cache_to_hardware) for OLED_Cache_to_hardware
+    mymain.o(i.mymain) refers to oled.o(i.OLED_Pix) for OLED_Pix
     mymain.o(i.mymain) refers to stm32f1xx_hal.o(i.HAL_GetTick) for HAL_GetTick
     mymain.o(i.mymain) refers to stm32f1xx_hal_gpio.o(i.HAL_GPIO_TogglePin) for HAL_GPIO_TogglePin
+    mymain.o(i.mymain) refers to mymain.o(.constdata) for .constdata
     oled.o(i.OLED_Cache_to_hardware) refers to oled.o(i.OLED_Set_Pos) for OLED_Set_Pos
     oled.o(i.OLED_Cache_to_hardware) refers to oled.o(i.OLED_WrDat) for OLED_WrDat
     oled.o(i.OLED_Cache_to_hardware) refers to oled.o(.bss) for .bss
@@ -295,6 +296,8 @@ Section Cross References
     oled.o(i.OLED_Init) refers to oled.o(i.OLED_Init_Display_Buffer) for OLED_Init_Display_Buffer
     oled.o(i.OLED_Init_Display_Buffer) refers to oled.o(i.OLED_Set_Pos) for OLED_Set_Pos
     oled.o(i.OLED_Init_Display_Buffer) refers to oled.o(i.OLED_WrDat) for OLED_WrDat
+    oled.o(i.OLED_Pix) refers to oled.o(i.OLED_Set_Pos) for OLED_Set_Pos
+    oled.o(i.OLED_Pix) refers to oled.o(i.OLED_WrDat) for OLED_WrDat
     oled.o(i.OLED_Set_Pos) refers to oled.o(i.OLED_WrCmd) for OLED_WrCmd
     oled.o(i.OLED_Setting_luminance) refers to oled.o(i.OLED_WrCmd) for OLED_WrCmd
     oled.o(i.OLED_Setting_luminance) refers to dflt_clz.o(x$fpl$dfltu) for __aeabi_ui2d
@@ -306,6 +309,7 @@ Section Cross References
     oled.o(i.OLED_ShowStr) refers to oled.o(i.OLED_ShowChar) for OLED_ShowChar
     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
     __main.o(!!!main) refers to __rtentry.o(.ARM.Collect$$rtentry$$00000000) for __rt_entry
     dfixu.o(x$fpl$dfixu) refers (Special) to usenofp.o(x$fpl$usenofp) for __I$use$fp
     dfixu.o(x$fpl$dfixu) refers to dnaninf.o(x$fpl$dnaninf) for __fpl_dnaninf
@@ -676,12 +680,15 @@ Removing Unused input sections from the image.
     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_Cache_to_hardware), (52 bytes).
     Removing oled.o(i.OLED_Setting_luminance), (44 bytes).
     Removing oled.o(i.OLED_ShowChar), (92 bytes).
     Removing oled.o(i.OLED_ShowStr), (48 bytes).
+    Removing oled.o(i.OLED_set_dot), (60 bytes).
+    Removing oled.o(.bss), (1024 bytes).
     Removing oled.o(.constdata), (1520 bytes).
 
-257 unused section(s) (total 21742 bytes) removed from the image.
+260 unused section(s) (total 22878 bytes) removed from the image.
 
 ==============================================================================
 
@@ -886,34 +893,34 @@ Image Symbol Table
     MX_GPIO_Init                             0x08001051   Thumb Code   150  main.o(i.MX_GPIO_Init)
     i.MemManage_Handler                      0x080010f0   Section        0  stm32f1xx_it.o(i.MemManage_Handler)
     i.NMI_Handler                            0x080010f2   Section        0  stm32f1xx_it.o(i.NMI_Handler)
-    i.OLED_Cache_to_hardware                 0x080010f4   Section        0  oled.o(i.OLED_Cache_to_hardware)
-    i.OLED_Init                              0x08001128   Section        0  oled.o(i.OLED_Init)
-    i.OLED_Init_Display_Buffer               0x080011b2   Section        0  oled.o(i.OLED_Init_Display_Buffer)
-    i.OLED_Set_Pos                           0x080011da   Section        0  oled.o(i.OLED_Set_Pos)
-    i.OLED_WrCmd                             0x080011fe   Section        0  oled.o(i.OLED_WrCmd)
-    i.OLED_WrDat                             0x0800120e   Section        0  oled.o(i.OLED_WrDat)
-    i.PendSV_Handler                         0x0800121e   Section        0  stm32f1xx_it.o(i.PendSV_Handler)
-    i.SVC_Handler                            0x08001220   Section        0  stm32f1xx_it.o(i.SVC_Handler)
-    i.SysTick_Handler                        0x08001222   Section        0  stm32f1xx_it.o(i.SysTick_Handler)
-    i.SystemClock_Config                     0x08001226   Section        0  main.o(i.SystemClock_Config)
-    i.SystemInit                             0x08001284   Section        0  system_stm32f1xx.o(i.SystemInit)
-    i.UsageFault_Handler                     0x08001286   Section        0  stm32f1xx_it.o(i.UsageFault_Handler)
-    i.__NVIC_SetPriority                     0x08001288   Section        0  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
-    __NVIC_SetPriority                       0x08001289   Thumb Code    32  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
-    i.main                                   0x080012a8   Section        0  main.o(i.main)
-    i.mymain                                 0x080012f0   Section        0  mymain.o(i.mymain)
-    .constdata                               0x0800131c   Section       16  system_stm32f1xx.o(.constdata)
-    .constdata                               0x0800132c   Section        8  system_stm32f1xx.o(.constdata)
+    i.OLED_Init                              0x080010f4   Section        0  oled.o(i.OLED_Init)
+    i.OLED_Init_Display_Buffer               0x0800117e   Section        0  oled.o(i.OLED_Init_Display_Buffer)
+    i.OLED_Pix                               0x080011a6   Section        0  oled.o(i.OLED_Pix)
+    i.OLED_Set_Pos                           0x080011c2   Section        0  oled.o(i.OLED_Set_Pos)
+    i.OLED_WrCmd                             0x080011e6   Section        0  oled.o(i.OLED_WrCmd)
+    i.OLED_WrDat                             0x080011f6   Section        0  oled.o(i.OLED_WrDat)
+    i.PendSV_Handler                         0x08001206   Section        0  stm32f1xx_it.o(i.PendSV_Handler)
+    i.SVC_Handler                            0x08001208   Section        0  stm32f1xx_it.o(i.SVC_Handler)
+    i.SysTick_Handler                        0x0800120a   Section        0  stm32f1xx_it.o(i.SysTick_Handler)
+    i.SystemClock_Config                     0x0800120e   Section        0  main.o(i.SystemClock_Config)
+    i.SystemInit                             0x0800126c   Section        0  system_stm32f1xx.o(i.SystemInit)
+    i.UsageFault_Handler                     0x0800126e   Section        0  stm32f1xx_it.o(i.UsageFault_Handler)
+    i.__NVIC_SetPriority                     0x08001270   Section        0  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
+    __NVIC_SetPriority                       0x08001271   Thumb Code    32  stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority)
+    i.main                                   0x08001290   Section        0  main.o(i.main)
+    i.mymain                                 0x080012d8   Section        0  mymain.o(i.mymain)
+    .constdata                               0x08001318   Section       16  system_stm32f1xx.o(.constdata)
+    .constdata                               0x08001328   Section        8  system_stm32f1xx.o(.constdata)
+    .constdata                               0x08001330   Section      144  mymain.o(.constdata)
     .data                                    0x20000000   Section       12  stm32f1xx_hal.o(.data)
     .data                                    0x2000000c   Section        4  system_stm32f1xx.o(.data)
     .bss                                     0x20000010   Section       84  main.o(.bss)
-    .bss                                     0x20000064   Section     1024  oled.o(.bss)
-    .bss                                     0x20000464   Section       96  libspace.o(.bss)
-    HEAP                                     0x200004c8   Section      512  startup_stm32f103xb.o(HEAP)
-    Heap_Mem                                 0x200004c8   Data         512  startup_stm32f103xb.o(HEAP)
-    STACK                                    0x200006c8   Section     1024  startup_stm32f103xb.o(STACK)
-    Stack_Mem                                0x200006c8   Data        1024  startup_stm32f103xb.o(STACK)
-    __initial_sp                             0x20000ac8   Data           0  startup_stm32f103xb.o(STACK)
+    .bss                                     0x20000064   Section       96  libspace.o(.bss)
+    HEAP                                     0x200000c8   Section      512  startup_stm32f103xb.o(HEAP)
+    Heap_Mem                                 0x200000c8   Data         512  startup_stm32f103xb.o(HEAP)
+    STACK                                    0x200002c8   Section     1024  startup_stm32f103xb.o(STACK)
+    Stack_Mem                                0x200002c8   Data        1024  startup_stm32f103xb.o(STACK)
+    __initial_sp                             0x200006c8   Data           0  startup_stm32f103xb.o(STACK)
 
     Global Symbols
 
@@ -1087,32 +1094,32 @@ Image Symbol Table
     IIC_SAND_DATE                            0x08001035   Thumb Code    22  hread_interface.o(i.IIC_SAND_DATE)
     MemManage_Handler                        0x080010f1   Thumb Code     2  stm32f1xx_it.o(i.MemManage_Handler)
     NMI_Handler                              0x080010f3   Thumb Code     2  stm32f1xx_it.o(i.NMI_Handler)
-    OLED_Cache_to_hardware                   0x080010f5   Thumb Code    48  oled.o(i.OLED_Cache_to_hardware)
-    OLED_Init                                0x08001129   Thumb Code   138  oled.o(i.OLED_Init)
-    OLED_Init_Display_Buffer                 0x080011b3   Thumb Code    40  oled.o(i.OLED_Init_Display_Buffer)
-    OLED_Set_Pos                             0x080011db   Thumb Code    36  oled.o(i.OLED_Set_Pos)
-    OLED_WrCmd                               0x080011ff   Thumb Code    16  oled.o(i.OLED_WrCmd)
-    OLED_WrDat                               0x0800120f   Thumb Code    16  oled.o(i.OLED_WrDat)
-    PendSV_Handler                           0x0800121f   Thumb Code     2  stm32f1xx_it.o(i.PendSV_Handler)
-    SVC_Handler                              0x08001221   Thumb Code     2  stm32f1xx_it.o(i.SVC_Handler)
-    SysTick_Handler                          0x08001223   Thumb Code     4  stm32f1xx_it.o(i.SysTick_Handler)
-    SystemClock_Config                       0x08001227   Thumb Code    94  main.o(i.SystemClock_Config)
-    SystemInit                               0x08001285   Thumb Code     2  system_stm32f1xx.o(i.SystemInit)
-    UsageFault_Handler                       0x08001287   Thumb Code     2  stm32f1xx_it.o(i.UsageFault_Handler)
-    main                                     0x080012a9   Thumb Code    58  main.o(i.main)
-    mymain                                   0x080012f1   Thumb Code    38  mymain.o(i.mymain)
-    AHBPrescTable                            0x0800131c   Data          16  system_stm32f1xx.o(.constdata)
-    APBPrescTable                            0x0800132c   Data           8  system_stm32f1xx.o(.constdata)
-    Region$$Table$$Base                      0x08001334   Number         0  anon$$obj.o(Region$$Table)
-    Region$$Table$$Limit                     0x08001354   Number         0  anon$$obj.o(Region$$Table)
+    OLED_Init                                0x080010f5   Thumb Code   138  oled.o(i.OLED_Init)
+    OLED_Init_Display_Buffer                 0x0800117f   Thumb Code    40  oled.o(i.OLED_Init_Display_Buffer)
+    OLED_Pix                                 0x080011a7   Thumb Code    28  oled.o(i.OLED_Pix)
+    OLED_Set_Pos                             0x080011c3   Thumb Code    36  oled.o(i.OLED_Set_Pos)
+    OLED_WrCmd                               0x080011e7   Thumb Code    16  oled.o(i.OLED_WrCmd)
+    OLED_WrDat                               0x080011f7   Thumb Code    16  oled.o(i.OLED_WrDat)
+    PendSV_Handler                           0x08001207   Thumb Code     2  stm32f1xx_it.o(i.PendSV_Handler)
+    SVC_Handler                              0x08001209   Thumb Code     2  stm32f1xx_it.o(i.SVC_Handler)
+    SysTick_Handler                          0x0800120b   Thumb Code     4  stm32f1xx_it.o(i.SysTick_Handler)
+    SystemClock_Config                       0x0800120f   Thumb Code    94  main.o(i.SystemClock_Config)
+    SystemInit                               0x0800126d   Thumb Code     2  system_stm32f1xx.o(i.SystemInit)
+    UsageFault_Handler                       0x0800126f   Thumb Code     2  stm32f1xx_it.o(i.UsageFault_Handler)
+    main                                     0x08001291   Thumb Code    58  main.o(i.main)
+    mymain                                   0x080012d9   Thumb Code    54  mymain.o(i.mymain)
+    AHBPrescTable                            0x08001318   Data          16  system_stm32f1xx.o(.constdata)
+    APBPrescTable                            0x08001328   Data           8  system_stm32f1xx.o(.constdata)
+    testbmp                                  0x08001330   Data         144  mymain.o(.constdata)
+    Region$$Table$$Base                      0x080013c0   Number         0  anon$$obj.o(Region$$Table)
+    Region$$Table$$Limit                     0x080013e0   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)
     SystemCoreClock                          0x2000000c   Data           4  system_stm32f1xx.o(.data)
     hi2c1                                    0x20000010   Data          84  main.o(.bss)
-    OLED_buff                                0x20000064   Data        1024  oled.o(.bss)
-    __libspace_start                         0x20000464   Data          96  libspace.o(.bss)
-    __temporary_stack_top$libspace           0x200004c4   Data           0  libspace.o(.bss)
+    __libspace_start                         0x20000064   Data          96  libspace.o(.bss)
+    __temporary_stack_top$libspace           0x200000c4   Data           0  libspace.o(.bss)
 
 
 
@@ -1122,70 +1129,70 @@ Memory Map of the image
 
   Image Entry point : 0x080000ed
 
-  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00001364, Max: 0x00010000, ABSOLUTE)
+  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x000013f0, Max: 0x00010000, ABSOLUTE)
 
-    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00001354, Max: 0x00010000, ABSOLUTE)
+    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x000013e0, 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         1921  * !!!main             c_w.l(__main.o)
-    0x080000f4   0x080000f4   0x00000034   Code   RO         2097    !!!scatter          c_w.l(__scatter.o)
-    0x08000128   0x08000128   0x0000001a   Code   RO         2099    !!handler_copy      c_w.l(__scatter_copy.o)
+    0x080000ec   0x080000ec   0x00000008   Code   RO         1936  * !!!main             c_w.l(__main.o)
+    0x080000f4   0x080000f4   0x00000034   Code   RO         2112    !!!scatter          c_w.l(__scatter.o)
+    0x08000128   0x08000128   0x0000001a   Code   RO         2114    !!handler_copy      c_w.l(__scatter_copy.o)
     0x08000142   0x08000142   0x00000002   PAD
-    0x08000144   0x08000144   0x0000001c   Code   RO         2101    !!handler_zi        c_w.l(__scatter_zi.o)
-    0x08000160   0x08000160   0x00000002   Code   RO         1965    .ARM.Collect$$libinit$$00000000  c_w.l(libinit.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1972    .ARM.Collect$$libinit$$00000002  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1974    .ARM.Collect$$libinit$$00000004  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1977    .ARM.Collect$$libinit$$0000000A  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1979    .ARM.Collect$$libinit$$0000000C  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1981    .ARM.Collect$$libinit$$0000000E  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1984    .ARM.Collect$$libinit$$00000011  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1986    .ARM.Collect$$libinit$$00000013  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1988    .ARM.Collect$$libinit$$00000015  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1990    .ARM.Collect$$libinit$$00000017  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1992    .ARM.Collect$$libinit$$00000019  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1994    .ARM.Collect$$libinit$$0000001B  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1996    .ARM.Collect$$libinit$$0000001D  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         1998    .ARM.Collect$$libinit$$0000001F  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2000    .ARM.Collect$$libinit$$00000021  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2002    .ARM.Collect$$libinit$$00000023  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2004    .ARM.Collect$$libinit$$00000025  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2008    .ARM.Collect$$libinit$$0000002C  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2010    .ARM.Collect$$libinit$$0000002E  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2012    .ARM.Collect$$libinit$$00000030  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000000   Code   RO         2014    .ARM.Collect$$libinit$$00000032  c_w.l(libinit2.o)
-    0x08000162   0x08000162   0x00000002   Code   RO         2015    .ARM.Collect$$libinit$$00000033  c_w.l(libinit2.o)
-    0x08000164   0x08000164   0x00000002   Code   RO         2035    .ARM.Collect$$libshutdown$$00000000  c_w.l(libshutdown.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2048    .ARM.Collect$$libshutdown$$00000002  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2050    .ARM.Collect$$libshutdown$$00000004  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2052    .ARM.Collect$$libshutdown$$00000006  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2055    .ARM.Collect$$libshutdown$$00000009  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2058    .ARM.Collect$$libshutdown$$0000000C  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2060    .ARM.Collect$$libshutdown$$0000000E  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000000   Code   RO         2063    .ARM.Collect$$libshutdown$$00000011  c_w.l(libshutdown2.o)
-    0x08000166   0x08000166   0x00000002   Code   RO         2064    .ARM.Collect$$libshutdown$$00000012  c_w.l(libshutdown2.o)
-    0x08000168   0x08000168   0x00000000   Code   RO         1935    .ARM.Collect$$rtentry$$00000000  c_w.l(__rtentry.o)
-    0x08000168   0x08000168   0x00000000   Code   RO         1942    .ARM.Collect$$rtentry$$00000002  c_w.l(__rtentry2.o)
-    0x08000168   0x08000168   0x00000006   Code   RO         1954    .ARM.Collect$$rtentry$$00000004  c_w.l(__rtentry4.o)
-    0x0800016e   0x0800016e   0x00000000   Code   RO         1944    .ARM.Collect$$rtentry$$00000009  c_w.l(__rtentry2.o)
-    0x0800016e   0x0800016e   0x00000004   Code   RO         1945    .ARM.Collect$$rtentry$$0000000A  c_w.l(__rtentry2.o)
-    0x08000172   0x08000172   0x00000000   Code   RO         1947    .ARM.Collect$$rtentry$$0000000C  c_w.l(__rtentry2.o)
-    0x08000172   0x08000172   0x00000008   Code   RO         1948    .ARM.Collect$$rtentry$$0000000D  c_w.l(__rtentry2.o)
-    0x0800017a   0x0800017a   0x00000002   Code   RO         1969    .ARM.Collect$$rtexit$$00000000  c_w.l(rtexit.o)
-    0x0800017c   0x0800017c   0x00000000   Code   RO         2017    .ARM.Collect$$rtexit$$00000002  c_w.l(rtexit2.o)
-    0x0800017c   0x0800017c   0x00000004   Code   RO         2018    .ARM.Collect$$rtexit$$00000003  c_w.l(rtexit2.o)
-    0x08000180   0x08000180   0x00000006   Code   RO         2019    .ARM.Collect$$rtexit$$00000004  c_w.l(rtexit2.o)
+    0x08000144   0x08000144   0x0000001c   Code   RO         2116    !!handler_zi        c_w.l(__scatter_zi.o)
+    0x08000160   0x08000160   0x00000002   Code   RO         1980    .ARM.Collect$$libinit$$00000000  c_w.l(libinit.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1987    .ARM.Collect$$libinit$$00000002  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1989    .ARM.Collect$$libinit$$00000004  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1992    .ARM.Collect$$libinit$$0000000A  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1994    .ARM.Collect$$libinit$$0000000C  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1996    .ARM.Collect$$libinit$$0000000E  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         1999    .ARM.Collect$$libinit$$00000011  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2001    .ARM.Collect$$libinit$$00000013  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2003    .ARM.Collect$$libinit$$00000015  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2005    .ARM.Collect$$libinit$$00000017  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2007    .ARM.Collect$$libinit$$00000019  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2009    .ARM.Collect$$libinit$$0000001B  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2011    .ARM.Collect$$libinit$$0000001D  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2013    .ARM.Collect$$libinit$$0000001F  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2015    .ARM.Collect$$libinit$$00000021  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2017    .ARM.Collect$$libinit$$00000023  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2019    .ARM.Collect$$libinit$$00000025  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2023    .ARM.Collect$$libinit$$0000002C  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2025    .ARM.Collect$$libinit$$0000002E  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2027    .ARM.Collect$$libinit$$00000030  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000000   Code   RO         2029    .ARM.Collect$$libinit$$00000032  c_w.l(libinit2.o)
+    0x08000162   0x08000162   0x00000002   Code   RO         2030    .ARM.Collect$$libinit$$00000033  c_w.l(libinit2.o)
+    0x08000164   0x08000164   0x00000002   Code   RO         2050    .ARM.Collect$$libshutdown$$00000000  c_w.l(libshutdown.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2063    .ARM.Collect$$libshutdown$$00000002  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2065    .ARM.Collect$$libshutdown$$00000004  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2067    .ARM.Collect$$libshutdown$$00000006  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2070    .ARM.Collect$$libshutdown$$00000009  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2073    .ARM.Collect$$libshutdown$$0000000C  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2075    .ARM.Collect$$libshutdown$$0000000E  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000000   Code   RO         2078    .ARM.Collect$$libshutdown$$00000011  c_w.l(libshutdown2.o)
+    0x08000166   0x08000166   0x00000002   Code   RO         2079    .ARM.Collect$$libshutdown$$00000012  c_w.l(libshutdown2.o)
+    0x08000168   0x08000168   0x00000000   Code   RO         1950    .ARM.Collect$$rtentry$$00000000  c_w.l(__rtentry.o)
+    0x08000168   0x08000168   0x00000000   Code   RO         1957    .ARM.Collect$$rtentry$$00000002  c_w.l(__rtentry2.o)
+    0x08000168   0x08000168   0x00000006   Code   RO         1969    .ARM.Collect$$rtentry$$00000004  c_w.l(__rtentry4.o)
+    0x0800016e   0x0800016e   0x00000000   Code   RO         1959    .ARM.Collect$$rtentry$$00000009  c_w.l(__rtentry2.o)
+    0x0800016e   0x0800016e   0x00000004   Code   RO         1960    .ARM.Collect$$rtentry$$0000000A  c_w.l(__rtentry2.o)
+    0x08000172   0x08000172   0x00000000   Code   RO         1962    .ARM.Collect$$rtentry$$0000000C  c_w.l(__rtentry2.o)
+    0x08000172   0x08000172   0x00000008   Code   RO         1963    .ARM.Collect$$rtentry$$0000000D  c_w.l(__rtentry2.o)
+    0x0800017a   0x0800017a   0x00000002   Code   RO         1984    .ARM.Collect$$rtexit$$00000000  c_w.l(rtexit.o)
+    0x0800017c   0x0800017c   0x00000000   Code   RO         2032    .ARM.Collect$$rtexit$$00000002  c_w.l(rtexit2.o)
+    0x0800017c   0x0800017c   0x00000004   Code   RO         2033    .ARM.Collect$$rtexit$$00000003  c_w.l(rtexit2.o)
+    0x08000180   0x08000180   0x00000006   Code   RO         2034    .ARM.Collect$$rtexit$$00000004  c_w.l(rtexit2.o)
     0x08000186   0x08000186   0x00000002   PAD
     0x08000188   0x08000188   0x00000040   Code   RO            4    .text               startup_stm32f103xb.o
-    0x080001c8   0x080001c8   0x0000004e   Code   RO         1917    .text               c_w.l(rt_memclr_w.o)
-    0x08000216   0x08000216   0x00000006   Code   RO         1919    .text               c_w.l(heapauxi.o)
-    0x0800021c   0x0800021c   0x0000004a   Code   RO         1956    .text               c_w.l(sys_stackheap_outer.o)
-    0x08000266   0x08000266   0x00000012   Code   RO         1958    .text               c_w.l(exit.o)
-    0x08000278   0x08000278   0x00000008   Code   RO         1966    .text               c_w.l(libspace.o)
-    0x08000280   0x08000280   0x0000000c   Code   RO         2027    .text               c_w.l(sys_exit.o)
-    0x0800028c   0x0800028c   0x00000002   Code   RO         2038    .text               c_w.l(use_no_semi.o)
-    0x0800028e   0x0800028e   0x00000000   Code   RO         2040    .text               c_w.l(indicate_semi.o)
+    0x080001c8   0x080001c8   0x0000004e   Code   RO         1932    .text               c_w.l(rt_memclr_w.o)
+    0x08000216   0x08000216   0x00000006   Code   RO         1934    .text               c_w.l(heapauxi.o)
+    0x0800021c   0x0800021c   0x0000004a   Code   RO         1971    .text               c_w.l(sys_stackheap_outer.o)
+    0x08000266   0x08000266   0x00000012   Code   RO         1973    .text               c_w.l(exit.o)
+    0x08000278   0x08000278   0x00000008   Code   RO         1981    .text               c_w.l(libspace.o)
+    0x08000280   0x08000280   0x0000000c   Code   RO         2042    .text               c_w.l(sys_exit.o)
+    0x0800028c   0x0800028c   0x00000002   Code   RO         2053    .text               c_w.l(use_no_semi.o)
+    0x0800028e   0x0800028e   0x00000000   Code   RO         2055    .text               c_w.l(indicate_semi.o)
     0x0800028e   0x0800028e   0x00000002   Code   RO          148    i.BusFault_Handler  stm32f1xx_it.o
     0x08000290   0x08000290   0x00000002   Code   RO          149    i.DebugMon_Handler  stm32f1xx_it.o
     0x08000292   0x08000292   0x00000002   PAD
@@ -1220,38 +1227,38 @@ Memory Map of the image
     0x08001050   0x08001050   0x000000a0   Code   RO           14    i.MX_GPIO_Init      main.o
     0x080010f0   0x080010f0   0x00000002   Code   RO          151    i.MemManage_Handler  stm32f1xx_it.o
     0x080010f2   0x080010f2   0x00000002   Code   RO          152    i.NMI_Handler       stm32f1xx_it.o
-    0x080010f4   0x080010f4   0x00000034   Code   RO         1840    i.OLED_Cache_to_hardware  oled.o
-    0x08001128   0x08001128   0x0000008a   Code   RO         1841    i.OLED_Init         oled.o
-    0x080011b2   0x080011b2   0x00000028   Code   RO         1842    i.OLED_Init_Display_Buffer  oled.o
-    0x080011da   0x080011da   0x00000024   Code   RO         1843    i.OLED_Set_Pos      oled.o
-    0x080011fe   0x080011fe   0x00000010   Code   RO         1847    i.OLED_WrCmd        oled.o
-    0x0800120e   0x0800120e   0x00000010   Code   RO         1848    i.OLED_WrDat        oled.o
-    0x0800121e   0x0800121e   0x00000002   Code   RO          153    i.PendSV_Handler    stm32f1xx_it.o
-    0x08001220   0x08001220   0x00000002   Code   RO          154    i.SVC_Handler       stm32f1xx_it.o
-    0x08001222   0x08001222   0x00000004   Code   RO          155    i.SysTick_Handler   stm32f1xx_it.o
-    0x08001226   0x08001226   0x0000005e   Code   RO           15    i.SystemClock_Config  main.o
-    0x08001284   0x08001284   0x00000002   Code   RO         1739    i.SystemInit        system_stm32f1xx.o
-    0x08001286   0x08001286   0x00000002   Code   RO          156    i.UsageFault_Handler  stm32f1xx_it.o
-    0x08001288   0x08001288   0x00000020   Code   RO         1215    i.__NVIC_SetPriority  stm32f1xx_hal_cortex.o
-    0x080012a8   0x080012a8   0x00000048   Code   RO           16    i.main              main.o
-    0x080012f0   0x080012f0   0x0000002c   Code   RO         1810    i.mymain            mymain.o
-    0x0800131c   0x0800131c   0x00000010   Data   RO         1740    .constdata          system_stm32f1xx.o
-    0x0800132c   0x0800132c   0x00000008   Data   RO         1741    .constdata          system_stm32f1xx.o
-    0x08001334   0x08001334   0x00000020   Data   RO         2095    Region$$Table       anon$$obj.o
+    0x080010f4   0x080010f4   0x0000008a   Code   RO         1844    i.OLED_Init         oled.o
+    0x0800117e   0x0800117e   0x00000028   Code   RO         1845    i.OLED_Init_Display_Buffer  oled.o
+    0x080011a6   0x080011a6   0x0000001c   Code   RO         1846    i.OLED_Pix          oled.o
+    0x080011c2   0x080011c2   0x00000024   Code   RO         1847    i.OLED_Set_Pos      oled.o
+    0x080011e6   0x080011e6   0x00000010   Code   RO         1851    i.OLED_WrCmd        oled.o
+    0x080011f6   0x080011f6   0x00000010   Code   RO         1852    i.OLED_WrDat        oled.o
+    0x08001206   0x08001206   0x00000002   Code   RO          153    i.PendSV_Handler    stm32f1xx_it.o
+    0x08001208   0x08001208   0x00000002   Code   RO          154    i.SVC_Handler       stm32f1xx_it.o
+    0x0800120a   0x0800120a   0x00000004   Code   RO          155    i.SysTick_Handler   stm32f1xx_it.o
+    0x0800120e   0x0800120e   0x0000005e   Code   RO           15    i.SystemClock_Config  main.o
+    0x0800126c   0x0800126c   0x00000002   Code   RO         1739    i.SystemInit        system_stm32f1xx.o
+    0x0800126e   0x0800126e   0x00000002   Code   RO          156    i.UsageFault_Handler  stm32f1xx_it.o
+    0x08001270   0x08001270   0x00000020   Code   RO         1215    i.__NVIC_SetPriority  stm32f1xx_hal_cortex.o
+    0x08001290   0x08001290   0x00000048   Code   RO           16    i.main              main.o
+    0x080012d8   0x080012d8   0x00000040   Code   RO         1810    i.mymain            mymain.o
+    0x08001318   0x08001318   0x00000010   Data   RO         1740    .constdata          system_stm32f1xx.o
+    0x08001328   0x08001328   0x00000008   Data   RO         1741    .constdata          system_stm32f1xx.o
+    0x08001330   0x08001330   0x00000090   Data   RO         1811    .constdata          mymain.o
+    0x080013c0   0x080013c0   0x00000020   Data   RO         2110    Region$$Table       anon$$obj.o
 
 
-    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08001354, Size: 0x00000ac8, Max: 0x00005000, ABSOLUTE)
+    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x080013e0, Size: 0x000006c8, Max: 0x00005000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x20000000   0x08001354   0x0000000c   Data   RW          752    .data               stm32f1xx_hal.o
-    0x2000000c   0x08001360   0x00000004   Data   RW         1742    .data               system_stm32f1xx.o
+    0x20000000   0x080013e0   0x0000000c   Data   RW          752    .data               stm32f1xx_hal.o
+    0x2000000c   0x080013ec   0x00000004   Data   RW         1742    .data               system_stm32f1xx.o
     0x20000010        -       0x00000054   Zero   RW           17    .bss                main.o
-    0x20000064        -       0x00000400   Zero   RW         1849    .bss                oled.o
-    0x20000464        -       0x00000060   Zero   RW         1967    .bss                c_w.l(libspace.o)
-    0x200004c4   0x08001364   0x00000004   PAD
-    0x200004c8        -       0x00000200   Zero   RW            2    HEAP                startup_stm32f103xb.o
-    0x200006c8        -       0x00000400   Zero   RW            1    STACK               startup_stm32f103xb.o
+    0x20000064        -       0x00000060   Zero   RW         1982    .bss                c_w.l(libspace.o)
+    0x200000c4   0x080013f0   0x00000004   PAD
+    0x200000c8        -       0x00000200   Zero   RW            2    HEAP                startup_stm32f103xb.o
+    0x200002c8        -       0x00000400   Zero   RW            1    STACK               startup_stm32f103xb.o
 
 
 ==============================================================================
@@ -1263,8 +1270,8 @@ Image component sizes
 
         28          6          0          0          0        920   hread_interface.o
        326         24          0          0         84     395176   main.o
-        44          6          0          0          0        473   mymain.o
-       298          4          0          0       1024       3917   oled.o
+        64         10        144          0          0       1027   mymain.o
+       274          0          0          0          0       3653   oled.o
         64         26        236          0       1536        816   startup_stm32f103xb.o
        128         24          0         12          0       5325   stm32f1xx_hal.o
        172         14          0          0          0      28298   stm32f1xx_hal_cortex.o
@@ -1276,7 +1283,7 @@ Image component sizes
          2          0         24          4          0       1131   system_stm32f1xx.o
 
     ----------------------------------------------------------------------
-      4302        278        292         16       2644     458899   Object Totals
+      4298        278        436         16       1620     459189   Object Totals
          0          0         32          0          0          0   (incl. Generated)
          6          0          0          0          0          0   (incl. Padding)
 
@@ -1326,15 +1333,15 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   
 
-      4656        294        292         16       2744     457167   Grand Totals
-      4656        294        292         16       2744     457167   ELF Image Totals
-      4656        294        292         16          0          0   ROM Totals
+      4652        294        436         16       1720     457457   Grand Totals
+      4652        294        436         16       1720     457457   ELF Image Totals
+      4652        294        436         16          0          0   ROM Totals
 
 ==============================================================================
 
-    Total RO  Size (Code + RO Data)                 4948 (   4.83kB)
-    Total RW  Size (RW Data + ZI Data)              2760 (   2.70kB)
-    Total ROM Size (Code + RO Data + RW Data)       4964 (   4.85kB)
+    Total RO  Size (Code + RO Data)                 5088 (   4.97kB)
+    Total RW  Size (RW Data + ZI Data)              1736 (   1.70kB)
+    Total ROM Size (Code + RO Data + RW Data)       5104 (   4.98kB)
 
 ==============================================================================
 
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 d0748d6..7a84082 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
@@ -29,7 +29,7 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x6224463D)
 I (./MYDEIVERS/mymain.h)(0x62590E47)
-I (./MYDEIVERS/oled.h)(0x62593CA4)
+I (./MYDEIVERS/oled.h)(0x62598616)
 I (./MYDEIVERS/hread_interface.h)(0x625910E8)
 F (../Core/Src/stm32f1xx_it.c)(0x62590B1B)(--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\wuwen\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\wuwen\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)(0x62590B1B)
@@ -504,7 +504,7 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x6224463D)
-F (.\MYDEIVERS\mymain.c)(0x62593CD5)(--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\wuwen\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\wuwen\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)
+F (.\MYDEIVERS\mymain.c)(0x625986C0)(--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\wuwen\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\wuwen\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)(0x62590E47)
 I (../Core/Inc/main.h)(0x62590B1B)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h)(0x6224463D)
@@ -532,10 +532,10 @@ I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h)(0x6224463D)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h)(0x6224463D)
-I (MYDEIVERS\oled.h)(0x62593CA4)
+I (MYDEIVERS\oled.h)(0x62598616)
 I (MYDEIVERS\hread_interface.h)(0x625910E8)
-F (.\MYDEIVERS\oled.c)(0x62593D0B)(--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\wuwen\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\wuwen\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)(0x62593CA4)
+F (.\MYDEIVERS\oled.c)(0x62598727)(--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\wuwen\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include

-IC:\Users\wuwen\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)(0x62598616)
 I (../Core/Inc/main.h)(0x62590B1B)
 I (../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h)(0x6224463D)
 I (../Core/Inc/stm32f1xx_hal_conf.h)(0x62590DE4)
diff --git a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.crf
index 7eb8518..2bd68ce 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.o b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/main.o
index fa62e02..d0c8b67 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 cc79b60..bf00bc2 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.o b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/mymain.o
index 9044bfc..df44e6e 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 0d2f73a..c7fec42 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 67f68be..951c639 100644
Binary files a/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o and b/f103c8t6_keil/MDK-ARM/f103c8t6_KEIL/oled.o differ