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本例OLED通过SPI与开发板建立连接（编辑器是IAR FOR MSP）：
这个是OLED驱动：
//12864.c
#include"MSP430G2553.h"
#include"12864.h"
#include"qumo.h"
#include"stdio.h"
void delay(int ms)//延时
{
int ii,jj;
if (ms<1) ms=1;
for(ii=0;ii
for(jj=0;jj<500;jj++);
}
//向LCD写入地址
void LCD_WrDat(unsigned char dat)
{
unsigned char i=8;
DC_SET;
SCL_CLR;
while(i--)
{
if(dat&0x80)
{SDA_SET;}
else
{SDA_CLR;}
SCL_SET ;
SCL_CLR;
dat<<=1;
}
}
//向LCD屏中写入命令
void LCD_WrCmd(unsigned char cmd)
{
unsigned char i=8;
DC_CLR;
SCL_CLR;
while(i--)
{
if(cmd&0x80)
{SDA_SET;}
else{SDA_CLR;}
SCL_SET;
SCL_CLR;
cmd<<=1;
}
}
//延时函数
void LCD_DLY_ms(unsigned int ms)
{
unsigned int a;
while(ms)
{
a=1335;
while(a--);
ms--;
}
return;
}
//LCD屏清屏
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
LCD_WrDat(0);
}
}
//清屏操作
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
LCD_WrDat(bmp_dat);
}
}
void LCD_Set_Pos(unsigned char x, unsigned char y)//设置坐标
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(((x&0xf0)>>4)|0x10);
LCD_WrCmd((x&0x0f)|0x00);
}
//LCD液晶屏初始化
void LCD_Init(void)
{
SCL_SET;
RST_CLR;
LCD_DLY_ms(50);
RST_SET;
//从上电到下面开始初始化要有足够的时间，即等待RC复位完毕
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);
}
//==============================================================
//函数名：LCD_P6x8Str(unsigned char x,unsigned char y,unsigned char *p)
//功能描述：写入一组标准ASCII字符串
//参数：显示的位置（x,y），y为页范围0～7，要显示的字符串
//返回：无
//==============================================================
void LCD_P6x8Str(unsigned char x,unsigned char y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='')
{
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++;
}
}
//==============================================================
//函数名：LCD_P6x8num(unsigned char x,unsigned char y,unsigned char *p)
//功能描述：写入number
//参数：显示的位置（x,y），y为页范围0～7，要显示的字符串
//返回：无
//==============================================================
void LCD_P6x8num(unsigned char x,unsigned char y,float num)
{
char ch[20];
char c=0,i=0,j=0;
sprintf(ch, "%2.4f", num);
while (ch[j]!='')
{
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++;
}
}
//==============================================================
//函数名：LCD_P8x16Str(unsigned char x,unsigned char y,unsigned char *p)
//功能描述：写入一组标准ASCII字符串
//参数：显示的位置（x,y），y为页范围0～7，要显示的字符串
//返回：无
//==============================================================
void LCD_P8x16Str(unsigned char x,unsigned char y,unsigned char *ch)
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='')
{
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++;
}
}
void LCD_P16x16Ch(unsigned char x,unsigned char y,unsigned char count)
{
unsigned char wm=0;
unsigned int adder=32*count;
LCD_Set_Pos(x , y);
for(wm = 0;wm < 16;wm++)
{
LCD_WrDat(F14x16[adder]);
adder += 1;
}
LCD_Set_Pos(x,y + 1);
for(wm = 0;wm < 16;wm++)
{
LCD_WrDat(F14x16[adder]);
adder += 1;
}
}
void Draw_LibLogo(void)
{
word ii=0;
byte x,y;
for(y=0;y<8;y++)
{
LCD_Set_Pos(34,y);
for(x=34;x<94;x++)
LCD_WrDat(LIBLOGO60x58[ii++]);
}
}
void Draw_BMP(byte x0,byte y0,byte x1,byte y1)
{
word ii=0;
byte 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
{
LCD_WrDat(yangfeng[ii++]);
}
}
}
头文件：
//12864.h
#ifndef _12864_H_
#define _12864_H_
#include"stdio.h"
//管教定义；
#define byte unsigned char
#define word unsigned int
#define dword unsigned long
#define DC_CLR P2OUT &=~BIT0
#define DC_SET P2OUT |=BIT0
#define RST_CLR P2OUT &=~BIT1
#define RST_SET P2OUT |=BIT1
#define SDA_CLR P2OUT &=~BIT2
#define SDA_SET P2OUT |=BIT2
#define SCL_CLR P2OUT &=~BIT3
#define SCL_SET P2OUT |=BIT3
#define X_WIDTH 128
#define Y_WIDTH 64
//函数声明
void delay(int ms);//延时
void LCD_WrCmd(unsigned char cmd);
void LCD_WrDat(unsigned char dat);
void LCD_Init(void);
void LCD_CLS(void);
void LCD_P6x8Str(byte x,byte y,byte ch[]);
void LCD_P6x8num(unsigned char x,unsigned char y,float num);
void LCD_P8x16Str(byte x,byte y,byte *ch);
void LCD_P16x16Ch(byte x,byte y,byte count);
void LCD_Fill(byte dat);
void Draw_LibLogo(void);
void Draw_BMP(byte x0,byte y0,byte x1,byte y1);
#endif
主函数：
//main.c
#include"MSP4
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