//向SSD1106写入一个字节。 //dat:要写入的数据/命令
//cmd:数据/命令标志 0,表示命令;1,表示数据; void OLED_WR_Byte(u8 dat,u8 cmd) {
DATAOUT(dat); if(cmd)
OLED_DC_Set(); else
OLED_DC_Clr(); OLED_CS_Clr(); OLED_WR_Clr(); OLED_WR_Set(); OLED_CS_Set(); OLED_DC_Set(); } #else
//向SSD1306写入一个字节。 //dat:要写入的数据/命令
//cmd:数据/命令标志 0,表示命令;1,表示数据; void OLED_WR_Byte(u8 dat,u8 cmd) { u8 i; if(cmd)
OLED_DC_Set(); else
OLED_DC_Clr(); OLED_CS_Clr(); for(i=0;i<8;i++)
{ OLED_SCLK_Clr(); if(dat&0x80) { OLED_SDIN_Set(); } else OLED_SDIN_Clr(); OLED_SCLK_Set(); dat<<=1; } OLED_CS_Set();
OLED_DC_Set(); } #endif
void OLED_Set_Pos(unsigned char x, unsigned char y) {
OLED_WR_Byte(0xb0+y,OLED_CMD);
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD); OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD);
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}
//开启OLED显示
void OLED_Display_On(void) {
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令 OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON }
//关闭OLED显示 void OLED_Display_Off(void) {
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令 OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF }
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!! void OLED_Clear(void) {
u8 i,n; for(i=0;i<8;i++) { OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7） OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址 OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址 for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); } //更新显示 }
//在指定位置显示一个字符,包括部分字符 //x:0~127 //y:0~63
//mode:0,反白显示;1,正常显示 //size:选择字体 16/12
void OLED_ShowChar(u8 x,u8 y,u8 chr) {
unsigned char c=0,i=0; c=chr-' ';//得到偏移后的值 if(x>Max_Column-1){x=0;y=y+2;} if(SIZE ==16) { OLED_Set_Pos(x,y); for(i=0;i<8;i++) OLED_WR_Byte(F8X16[c*16+i],OLED_DATA); OLED_Set_Pos(x,y+1); for(i=0;i<8;i++)
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OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA); } else { OLED_Set_Pos(x,y+1); for(i=0;i<6;i++) OLED_WR_Byte(F6x8[c][i],OLED_DATA); } }
//m^n函数
u32 oled_pow(u8 m,u8 n) {
u32 result=1;
while(n--)result*=m; return result; } //显示2个数字 //x,y :起点坐标 //len :数字的位数 //size:字体大小
//mode:模式 0,填充模式;1,叠加模式 //num:数值(0~4294967295);
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2) { u8 t,temp;
u8 enshow=0; for(t=0;t OLED_ShowChar(x+(size2/2)*t,y,temp+'0'); } } //显示一个字符号串 void OLED_ShowString(u8 x,u8 y,u8 *chr) { 31 unsigned char j=0; while (chr[j]!='\\0') { OLED_ShowChar(x,y,chr[j]); x+=8; if(x>120){x=0;y+=2;} j++; }} //显示汉字 void OLED_ShowCHinese(u8 x,u8 y,u8 no) { u8 t,adder=0; OLED_Set_Pos(x,y); for(t=0;t<16;t++) {OLED_WR_Byte(Hzk[2*no][t],OLED_DATA); adder+=1; } OLED_Set_Pos(x,y+1); for(t=0;t<16;t++) {OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA); adder+=1; } } /***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/ void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]) { unsigned int j=0; unsigned char x,y; if(y1%8==0) y=y1/8; else y=y1/8+1; for(y=y0;y OLED_WR_Byte(BMP[j++],OLED_DATA); }}} //初始化SSD1306 void OLED_Init(void) { OLED_RST_Set(); delay_ms(100); OLED_RST_Clr(); delay_ms(100); OLED_RST_Set(); 32 OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel OLED_WR_Byte(0x00,OLED_CMD);//---set low column address OLED_WR_Byte(0x10,OLED_CMD);//---set high column address OLED_WR_Byte(0x40,OLED_CMD);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F) OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常 OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常 OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64) OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F) OLED_WR_Byte(0x00,OLED_CMD);//-not offset OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration OLED_WR_Byte(0x12,OLED_CMD); OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02) OLED_WR_Byte(0x02,OLED_CMD);// OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5) OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7) OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled pane OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/ OLED_Clear(); OLED_Set_Pos(0,0); } OLED字库程序 //*************************************************************** 33