2019年04月19日 | 基于MSP430G2253的OLED驱动（SPI）

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"MSP430G2553.h"

#include"12864.h"

//#include"adc.h" 

#define IDLE 0

#define BUSY 1

void main(void) 

{

 WDTCTL = WDTPW + WDTHOLD;//停止看门狗

  P2DIR |=BIT0+BIT1+BIT2+BIT3;  

  LCD_Init();

  //显示初始化成功

      LCD_P16x16Ch(0,0,0); //系    //汉字是16*16的大小所以x方向的距离是14

      LCD_P16x16Ch(16,0,1); //统

      LCD_P16x16Ch(32,0,2); //初

      LCD_P16x16Ch(48,0,3); //始

      LCD_P16x16Ch(64,0,4); //化