51单片机+IIC通信+0.96oled显示屏源码

#include "oled.h" #include "iic.h" #include "font.h" void delay_ms(unsigned int ms) { unsigned int a; while(ms) { a=1800; while(a--); ms--; } return; } void OLED_WR_Byte(unsigned dat,unsigned cmd) { if(cmd) { Write_IIC_Data(dat); } else { Write_IIC_Command(dat); } } //反显函数 void OLED_ColorTurn(u8 i) { if(i==0) { OLED_WR_Byte(0xA6,OLED_CMD);//正常显示 } if(i==1) { OLED_WR_Byte(0xA7,OLED_CMD);//反色显示 } } //屏幕旋转180度 void OLED_DisplayTurn(u8 i) { if(i==0) { OLED_WR_Byte(0xC8,OLED_CMD);//正常显示 OLED_WR_Byte(0xA1,OLED_CMD); } if(i==1) { OLED_WR_Byte(0xC0,OLED_CMD);//反转显示 OLED_WR_Byte(0xA0,OLED_CMD); } } //坐标设置 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),OLED_CMD); } //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 } void OLED_On(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(1,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,u8 Char_Size) { 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(Char_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++) OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA); } else { OLED_Set_Pos(x,y); 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<len;t++) { temp=(num/oled_pow(10,len-t-1))%10; if(enshow==0&&t<(len-1)) { if(temp==0) { OLED_ShowChar(x+(size2/2)*t,y,' ',size2); continue; }else enshow=1; } OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2); } } //显示一个字符号串 void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size) { unsigned char j=0; while (chr[j]!='\0') { OLED_ShowChar(x,y,chr[j],Char_Size); 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; } } void oled_showpictues(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]) { unsigned int i=0; unsigned char x,y; //if(y1%8==0) y=y1/8; //else y=y1/8+1; y1/=8; for(y=y0;y<y1;y++) { OLED_Set_Pos(x0,y); for(x=x0;x<x1;x++) {Write_IIC_Data(BMP[i++]);} } } void OLED_Init(void) { OLED_WR_Byte(0xAE,OLED_CMD);//--display off 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 OLED_WR_Byte(0xB0,OLED_CMD);//--set page address OLED_WR_Byte(0x81,OLED_CMD); // contract control OLED_WR_Byte(0xFF,OLED_CMD);//--128 OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64) OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset OLED_WR_Byte(0x00,OLED_CMD);// OLED_WR_Byte(0xD5,OLED_CMD);//set osc division OLED_WR_Byte(0x80,OLED_CMD);// OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off OLED_WR_Byte(0x05,OLED_CMD);// OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period OLED_WR_Byte(0xF1,OLED_CMD);// OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion OLED_WR_Byte(0x12,OLED_CMD);// OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh OLED_WR_Byte(0x30,OLED_CMD);// OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable OLED_WR_Byte(0x14,OLED_CMD);// OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel }