/* * oled.c * * Created on: 2022年4月15日 * Author: wuwen */ #include "oled.h" #include "fonts.h" /* 通过IIC发送指令到OLED */ void OLED_WrCmd(unsigned char IIC_Command) { uint8_t *pData; pData = &IIC_Command; IIC_SAND_DATE(OLED_ADDRESS,0x00,pData,1); } /* 通过IIC发送数据到OLED */ void OLED_WrDat(unsigned char IIC_Data) { uint8_t *pData; pData = &IIC_Data; IIC_SAND_DATE(OLED_ADDRESS,0x40,pData,1); } /* 设置硬件内的光标 */ void OLED_Set_Pos(unsigned char x, unsigned char y) { OLED_WrCmd( 0xb0 + 7-y ); OLED_WrCmd(((x&0xf0)>>4)|0x10); OLED_WrCmd( (x&0x0f) |0x00); } /* 初始化硬件内存（显存） */ void OLED_Init_Display_Buffer(char a) { for(unsigned char y = 0;y < Y_WIDTH_;y++) { OLED_Set_Pos(0,y); for(unsigned char x = 0;x < X_WIDTH;x++) { OLED_WrDat(a); //HAL_Delay(1); } } } /* 设置屏幕亮度 */ void OLED_Setting_luminance(unsigned char a) { OLED_WrCmd(0x81); OLED_WrCmd(a*2.55); } /* 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) { //HAL_Delay(200); OLED_WrCmd(0xAE); //关闭显示 OLED_WrCmd(0xD5); //设置时钟分频因子,震荡频率 OLED_WrCmd( 80); //[3:0],分频因子;[7:4],震荡频率 OLED_WrCmd(0xA8); //设置驱动路数 OLED_WrCmd(0X3F); //默认0X3F(1/64) OLED_WrCmd(0xD3); //设置显示偏移 OLED_WrCmd(0X00); //默认为0 OLED_WrCmd(0x40); //设置显示开始行 [5:0],行数. OLED_WrCmd(0x8D); //电荷泵设置 OLED_WrCmd(0x14); //bit2，开启/关闭 OLED_WrCmd(0x20); //设置内存地址模式 OLED_WrCmd(0x02); //[1:0],00，列地址模式;01，行地址模式;10,页地址模式;默认10; OLED_WrCmd(0xA1); //段重定义设置,bit0:0,0->0;1,0->127; OLED_WrCmd(0xC0); //设置COM扫描方向;bit3:0,普通模式;1,重定义模式 COM[N-1]->COM0;N:驱动路数 //OLED_WrCmd(0xDA); //设置COM硬件引脚配置 //OLED_WrCmd(0x12); //[5:4]配置 //显示方向设置 //OLED_WrCmd(0xc8);//OLED_WrCmd(0xa0); //行扫描顺序：从上到下 //列扫描顺序：从左到右 OLED_WrCmd(0xD9); //设置预充电周期 OLED_WrCmd(0xf1); //[3:0],PHASE 1;[7:4],PHASE 2; OLED_WrCmd(0xDB); //设置VCOMH 电压倍率 OLED_WrCmd(0x30); //[6:4] 000,0.65*vcc;001,0.77*vcc;011,0.83*vcc; OLED_WrCmd(0xA4); //全局显示开启;bit0:1,开启;0,关闭;(白屏/黑屏) OLED_WrCmd(0xA6); //设置显示方式;bit0:1,反相显示;0,正常显示 OLED_WrCmd(0xAF); //开启显示 OLED_Init_Display_Buffer(0); } /*************************************************************************************************************************************************************************************/ /*硬件与软件之间的部分*/ /* 定义显存 */ char OLED_buff[Y_WIDTH_][X_WIDTH]; /* 加速缓存 */ char OLED_speedup[Y_WIDTH_][X_WIDTH]; /* 将显存发送到硬件 */ void OLED_Cache_to_hardware() { char b=0; for(uint8_t y=0;y=X_WIDTH||y>=Y_WIDTH) { return ; } uint8_t y1=y/8; uint8_t y2=y%8; uint8_t y3=(0x80>>y2); char temp=OLED_buff[y1][x]; switch(dot_type) { case 0: temp &= ~y3; break; case 1: temp |= y3; break; case 2: temp ^= y3; break; case 3:break; } OLED_buff[y1][x]=temp; } /* 绘图函数 数据格式 从左到右，从上到下，横向8点右高位 type=0 清空区域 =1 区域图层 =2 正片叠底 =3 正片清空 =4 负片 =5 正片负片 */ void OLED_Pix(unsigned char x,unsigned char y,unsigned char w,unsigned char h,const char *p,unsigned char type) { unsigned char b=0; unsigned int c=0; for(uint8_t h1=0;h1>b) { switch(type) { case 0: OLED_set_dot(w1+x,h1+y,0); break; case 1: OLED_set_dot(w1+x,h1+y,1); break; case 2: OLED_set_dot(w1+x,h1+y,1); break; case 3: OLED_set_dot(w1+x,h1+y,0); break; case 4: OLED_set_dot(w1+x,h1+y,0); break; case 5: OLED_set_dot(w1+x,h1+y,2); break; } }else { switch(type) { case 0: OLED_set_dot(w1+x,h1+y,0); break; case 1: OLED_set_dot(w1+x,h1+y,0); break; case 2: break; case 4: OLED_set_dot(w1+x,h1+y,1); break; } } b++; if(b==8) { b=0;c++; } } if(b!=0) { b=0;c++; } } } /* 显示字符 数据格式 从左到右，从上到下，横向8点左高位 （同一个函数实现的显示不知道为何这里要用左高位才能正常显示） type=0 清空区域 =1 区域图层 =2 正片叠底 =3 正片清空 =4 负片 */ void OLED_Ascii(unsigned char x,unsigned char y,unsigned char size,char *chr,unsigned char type) { if(*chr>=' '&&*chr<='~') { switch(size) { case 8: OLED_Pix(x,y,5,8,asc2_0805[*chr-' '],type); break; case 12: OLED_Pix(x,y,6,12,asc2_1206[*chr-' '],type); break; case 16: OLED_Pix(x,y,8,16,asc2_1608[*chr-' '],type); break; } } } void OLED_Ch(unsigned char x,unsigned char y,unsigned char size,char *chr,unsigned char type) { unsigned int a=0,b=0; while(chfonst1616_index[a]!='\0') { if(chfonst1616_index[a]==chr[0]&&chfonst1616_index[a+1]==chr[1]) { b=a/2; break; } a+=2; } OLED_Pix(x,y,16,16,chfonst1616[b],type); } void OLED_Str(unsigned char x,unsigned char y,unsigned char size,char *str,unsigned char lenconst,unsigned char type) { unsigned char size2; unsigned char tempx=x; unsigned char templenstard=1; switch(size) { case 8: size2=6; break; case 12: size2=7; break; case 16: size2=8; break; } while(*str!='\0') { if((x+size2>=X_WIDTH)||(*str=='\n')) { if(lenconst!=0) { if(templenstard>=lenconst) { return; } } templenstard++; y+=size; if(y>=Y_WIDTH) { //y=0; return; } x=tempx; }else { if(*str<127) { OLED_Ascii(x,y,size,str,type); x+=size2; }else { OLED_Ch(x,y,size,str,type); str++; x+=16; } } str++; } } void OLED_Str_list(unsigned char x,unsigned char y,unsigned char size,char *str,unsigned char lenstard,unsigned char lenconst,unsigned char type) { unsigned char templenstard=0; while(templenstard!=lenstard)//跳转到指定行 { switch(*str) { case '\n': //如果是回车 行加加 templenstard++; break; case '\0': //如果字符串提前结束 报错 直接返回 return; } str++; } OLED_Str(x,y,size,str,lenconst,type); } /* 几何绘图 */ /*画横线*/ void OLED_HL(unsigned char x,unsigned char y,unsigned char size,unsigned char dot_type) { } /*画竖线*/ void OLED_VL(unsigned char x,unsigned char y,unsigned char size,unsigned char dot_type) { } /*画任意线*/ void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type) { 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) { if(dy>0) { for(int y=ey;y>sy;y--) { OLED_set_dot(sx,y,dot_type); } }else if(dy<0) { for(int y=ey;y0) { for(int x=ex;x>sx;x--) { OLED_set_dot(x,sy,dot_type); } }else if(dx<0) { for(int x=ex;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); } } }