主要核心代码如下：
#include"oled.h"
#include"codetable.h"
/*********************OLED写数据************************************/
void delay(unsigned int z)
{
unsigned int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
/**********************************************
//IIC Start
**********************************************/
void IIC_Start()
{
SCL = high;
SDA = high;
_nop_();
SDA = low;
_nop_();_nop_();
SCL = low;
}
/**********************************************
//IIC Stop
**********************************************/
void IIC_Stop()
{
SDA = low;
_nop_();
SCL = high;
_nop_();_nop_();
SDA = high;
}
/**********************************************
// IIC Write byte
**********************************************/
bit Write_IIC_Byte(unsigned char IIC_Byte)
{
unsigned char i;
bit Ack_Bit;
for(i=0;i<8;i++)
{
if(IIC_Byte & 0x80)
SDA=high;
else
SDA=low;
//Delay_us(1);
SCL=high;
_nop_();_nop_();
SCL=low;
//Delay_us(1);
IIC_Byte<<=1;
}
SDA = high;
_nop_();_nop_();
SCL = high;
_nop_();_nop_();
Ack_Bit = SDA;
SCL = low;
return Ack_Bit;
}
/**********************************************
// IIC Write Command
**********************************************/
void LCD_WrCmd(unsigned char IIC_Command)
{
IIC_Start();
Write_IIC_Byte(0x78); //Slave address,SA0=0
Write_IIC_Byte(0x00); //write command
Write_IIC_Byte(IIC_Command);
IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void LCD_WrDat(unsigned char IIC_Data)
{
IIC_Start();
Write_IIC_Byte(0x78);
Write_IIC_Byte(0x40); //write data
Write_IIC_Byte(IIC_Data);
IIC_Stop();
}
/*********************OLED 设置坐标************************************/
void LCD_Set_Pos(unsigned char x, unsigned char y)
{
LCD_WrCmd(0xb2+y);
LCD_WrCmd(((x&0xf0)>>4)|0x10);
LCD_WrCmd((x&0x0f)|0x01);
}
/*********************OLED全屏************************************/
void LCD_Fill(unsigned char bmp_dat)
{
unsigned char y,x;
for(y=0;y<8;y++)
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(0x01);
LCD_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
LCD_WrDat(bmp_dat);
}
}
/*********************复位************************************/
void LCD_CLS(void)
{
unsigned char y,x;
for(y=0;y<8;y++)
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(0x01);
LCD_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
LCD_WrDat(0);
}
}
/*********************LCD初始化************************************/
void LCD_Init(void)
{
delay(500);//这里的延时很重要,一般50ms即可,保险起见，可以长一些
LCD_WrCmd(0xae);//--turn off oled panel
LCD_WrCmd(0x00);//---set low column address
LCD_WrCmd(0x10);//---set high column address
LCD_WrCmd(0x40);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
LCD_WrCmd(0x81);//--set contrast control register
LCD_WrCmd(0xcf); // Set SEG Output Current Brightness
LCD_WrCmd(0xa1);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
LCD_WrCmd(0xc8);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
LCD_WrCmd(0xa6);//--set normal display
LCD_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
LCD_WrCmd(0x3f);//--1/64 duty
LCD_WrCmd(0xd3);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
LCD_WrCmd(0x00);//-not offset
LCD_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
LCD_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
LCD_WrCmd(0xd9);//--set pre-charge period
LCD_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
LCD_WrCmd(0xda);//--set com pins hardware configuration
LCD_WrCmd(0x12);
LCD_WrCmd(0xdb);//--set vcomh
LCD_WrCmd(0x40);//Set VCOM Deselect Level
LCD_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
LCD_WrCmd(0x02);//
LCD_WrCmd(0x8d);//--set Charge Pump enable/disable
LCD_WrCmd(0x14);//--set(0x10) disable
LCD_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
LCD_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7)
LCD_WrCmd(0xaf);//--turn on oled panel
LCD_Fill(0x00); //初始清屏
LCD_Set_Pos(0,0);
}
/***************功能描述：显示6*8一组标准ASCII字符串 显示的坐标（x,y），y为页范围0～7****************/
void LCD_P6X8Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>126){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<6;i++)
LCD_WrDat(F6x8[c][i]);
x+=6;
j++;
}
}
/*******************功能描述：显示8*16一组标准ASCII字符串 显示的坐标（x,y），y为页范围0～7****************/
void LCD_P8X16Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>120){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<8;i++)
LCD_WrDat(F8X16[c*16+i]);
LCD_Set_Pos(x,y+1);
for(i=0;i<8;i++)
LCD_WrDat(F8X16[c*16+i+8]);
x+=8;
j++;
}
}
/******************功能描述：显示16*24一组标准ASCII字符显示的坐标（x,y），y为页范围**************************************************/
void LCD_P16X16Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>120){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<16;i++)
LCD_WrDat(F16X16[c*32+i]);
LCD_Set_Pos(x,y+1);
for(i=0;i<16;i++)
LCD_WrDat(F16X16[c*32+i+16]);
x+=16;
j++;
}
}
/******************功能描述：显示16*24一组标准ASCII字符显示的坐标（x,y），y为页范围**************************************************/
void LCD_P16X24Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>112){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<16;i++)
LCD_WrDat(F16X24[c*48+i]);
LCD_Set_Pos(x,y+1);
for(i=0;i<16;i++)
LCD_WrDat(F16X24[c*48+i+16]);
LCD_Set_Pos(x,y+2);
for(i=0;i<16;i++)
LCD_WrDat(F16X24[c*48+i+16*2]);
x+=16;
j++;
}
}
/***********************************************************************************/
void Oled_write_data_3(unsigned char x, y,unsigned int data1)
{
unsigned char translateData[6];
translateData[0] = data1 % 10000 / 1000 + '0';
translateData[1] = data1 % 1000 / 100 + '0';
translateData[2] = '.';
translateData[3] = data1 % 100 / 10 + '0';
translateData[4] = data1 % 10 + '0';
translateData[5] = '\0';
LCD_P8X16Str(x,y,translateData) ;
//LCD_P16X24Str(x,y,translateData) ;
}
/***********************************************************************************/
void Oled_write_data_4(unsigned char x, y,unsigned int data1)
{
unsigned char translateData0[6];
translateData0[0] = data1 % 100000/ 10000 + '0' ;
translateData0[1] = data1 % 10000 / 1000 + '0';
translateData0[2] = data1 % 1000 / 100 + '0';
translateData0[3] = '.';
translateData0[4] = data1 % 100 / 10 + '0';
// translateData0[5] = data1 % 10 + '0';
translateData0[5] = '\0';
// LCD_P8X16Str(x,y,translateData0) ;
LCD_P16X24Str(x,y,translateData0) ;
}
/*****************功能描述：显示16*16点阵 显示的坐标（x,y），y为页范围0～7****************************/
//void LCD_P16x16Ch(unsigned char x, y, N)
//{
// unsigned char wm=0;
// unsigned int adder=32*N;
// LCD_Set_Pos(x , y);
// for(wm = 0;wm < 16;wm++)
// {
// LCD_WrDat(F16x16[adder]);
// adder += 1;
// }
// LCD_Set_Pos(x,y + 1);
// for(wm = 0;wm < 16;wm++)
// {
// LCD_WrDat(F16x16[adder]);
// 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 Draw_BMP(unsigned char x0, y0,x1, 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<y1;y++)
// {
// LCD_Set_Pos(x0,y);
// for(x=x0;x<x1;x++)
// {
// LCD_WrDat(BMP[j++]);
// }
// }
//}
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