×
嵌入式 > 技术百科 > 详情

MSP430控制手机液晶屏

发布时间：2020-06-02 发布时间：
|
液晶屏为2.4寸TFT彩屏，

#include 
#define uchar unsigned char
#define uint unsigned int


#include "qqp.H"
#include "ascii hex(8x16).h"
#include "GB2312.h"
uint color[]={0xf800,0x07e0,0x001f,0xffe0,0x0000,0xffff,0x07ff,0xf81f};

void delay_us(uint t);
void delay_us(uint t);

#define LCD_CONTROL_PORT           P5OUT
#define LCD_CONTROL_DIR_PORT       P5DIR
#define LCD_RST     0x01           
#define LCD_RD     0x02           
#define LCD_RS      0x04  
#define LCD_CS      0x08 
#define LCD_WR      0x10

void LCD_WR_REG(uchar index);  
void LCD_WR_DATA8(uchar pd);
void LCD_WR_CMD(uchar index,uint val);
unsigned int LCD_RD_REG16(uchar index);

void LCD_WR_Data(uint val);
void LCD_Init();
void LCD_test();
void LCD_QQ();
void LCD_clear(uint p);

void DisplayChar(uchar casc,uchar postion_x,uchar postion_y);
void DisplayGB2312(uchar gb,uchar postion_x,uchar postion_y);
void DisplayString(uchar *s,uchar x,uchar y);//英文字符串显示.

 

void delay_us(uint t)
{
 t+=170;
 while(--t);
}
void delay_ms(uint t)
{
 uchar i,j;
 while(--t)
 {
  j=5;
  while(--j)
   while(--i);
 }
}

 

void    SET_LCD_CONTROL_PORT()
{
LCD_CONTROL_DIR_PORT&=0X1F;
}

void SET_LCD_RST_HIGH(){LCD_CONTROL_PORT|=LCD_RST; };
void SET_LCD_RST_LOW() {LCD_CONTROL_PORT&=~LCD_RST;};

void SET_LCD_RD_HIGH(){LCD_CONTROL_PORT|=LCD_RST;};
void SET_LCD_RD_LOW() {LCD_CONTROL_PORT&=~LCD_RD;};

 void  SET_LCD_RS_HIGH(){LCD_CONTROL_PORT|=LCD_RS; };
 void  SET_LCD_RS_LOW() {LCD_CONTROL_PORT&=~LCD_RS;};

 void  SET_LCD_CS_HIGH(){LCD_CONTROL_PORT|=LCD_CS; };
 void  SET_LCD_CS_LOW() {LCD_CONTROL_PORT&=~LCD_CS;};

 void SET_LCD_WR_HIGH(){LCD_CONTROL_PORT|=LCD_WR; };
 void SET_LCD_WR_LOW() {LCD_CONTROL_PORT&=~LCD_WR;};

 void  SET_LCD_DATA(unsigned char lcd_data)
{
  P4DIR&=0XFF;
  P4OUT|=lcd_data; 
};
 unsigned int GET_LCD_DATA()
 {
  unsigned int lcd_data1;
   P4DIR|=0X00;
   lcd_data1=P4IN; 
        return(lcd_data1);
 };
          
void LCD_WR_REG(uchar index)
{
 SET_LCD_RS_LOW();
 SET_LCD_CS_LOW ( );
// DATA = index;
 SET_LCD_DATA(index);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();
}

void LCD_WR_DATA8(uchar pd)
{
 SET_LCD_RS_HIGH();
 SET_LCD_CS_LOW();
// DATA = pd;
 SET_LCD_DATA(pd);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();
}

void LCD_WR_CMD(uchar index,uint val)
{
 SET_LCD_RS_LOW();
 SET_LCD_CS_LOW();
 //DATA = index;
 SET_LCD_DATA(index);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();

 SET_LCD_RS_HIGH();
 SET_LCD_CS_LOW();
// DATA = (uchar)(val>>8);
 SET_LCD_DATA(val>>8);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();
 SET_LCD_RS_HIGH();
 SET_LCD_CS_LOW();
// DATA = (uchar)val;
 SET_LCD_DATA(val);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();
}

unsigned int LCD_RD_REG16(uchar index)
{
 unsigned int pd,ppd;

 SET_LCD_RS_LOW();
 SET_LCD_CS_LOW();
 _nop_();
 _nop_();

 SET_LCD_DATA(index);
 _nop_();
 _nop_();

 SET_LCD_WR_LOW();
 _nop_();
 _nop_();

 SET_LCD_WR_HIGH();
 _nop_();
 _nop_();

 SET_LCD_RS_HIGH();
 _nop_();
 _nop_();

// DATA = 0xFF;
 SET_LCD_DATA(0xff);
 _nop_();
 _nop_();

 SET_LCD_RD_LOW();
 _nop_();
 _nop_();
 SET_LCD_RD_HIGH();
 pd=GET_LCD_DATA();
// pd = DATA;
 
 pd = pd<<8;

 _nop_();
 _nop_();
// DATA = 0xFF;
 SET_LCD_DATA(0xff);
 SET_LCD_RD_LOW();
 _nop_();
 _nop_();
 SET_LCD_RD_HIGH();
 ppd=GET_LCD_DATA();
 pd = pd + ppd;
 SET_LCD_CS_HIGH();
 SET_LCD_RS_LOW();
 return pd;
}

void LCD_WR_Data(uint val)
{
 //SET_LCD_RS_HIGH();
 //SET_LCD_CS_LOW();
// DATA = (uchar)(val>>8);
        SET_LCD_DATA(val>>8);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 //SET_LCD_RS_HIGH();
// DATA = (uchar)val;
 SET_LCD_DATA((uchar)val);
 SET_LCD_WR_LOW();
 SET_LCD_WR_HIGH();
 //SET_LCD_CS_HIGH();
 //SET_LCD_RS_LOW();
}

void LCD_Init()
{     
        SET_LCD_CONTROL_PORT();
// LCD_RST = 0;
 SET_LCD_RST_LOW();  
 delay_ms(200);
// LCD_RST = 1;
 SET_LCD_RST_HIGH();
 delay_ms(200);

 //initializing funciton 1
 delay_us(10);
 LCD_WR_CMD(0xA1,0x00);
 LCD_WR_CMD(0xA0,0x00);
 delay_us(10);
 LCD_WR_CMD(0x70,0xC8); //Start osc

 delay_ms(20);
 
 //Power Setting
 LCD_WR_CMD(0x72,0xA3);
 LCD_WR_CMD(0x73,0x04); 
 LCD_WR_CMD(0x75,0x45); 
 LCD_WR_CMD(0x76,0x23); 
 LCD_WR_CMD(0x77,0x08); 
 LCD_WR_CMD(0x78,0x08); 
 LCD_WR_CMD(0x79,0x00); 
 LCD_WR_CMD(0x7F,0xF0); 
 LCD_WR_CMD(0x71,0x81); 

 delay_ms(2);
 
 LCD_WR_CMD(0x0D,0x23); 
 //delay_us(10);
 LCD_WR_CMD(0x11,0x00); 
 LCD_WR_CMD(0x12,0x00); 
 LCD_WR_CMD(0x21,0x37); 
 //delay_us(10);
 LCD_WR_CMD(0x22,0x02); 
 //delay_us(10);
 LCD_WR_CMD(0x23,0x24); 
 LCD_WR_CMD(0x24,0x13); 
 LCD_WR_CMD(0x25,0x0A); 
 LCD_WR_CMD(0x26,0x82); 
 LCD_WR_CMD(0x27,0x01); 
 LCD_WR_CMD(0x1E,0x25); 
 LCD_WR_CMD(0x1F,0x59); 
 
 //GAMMA Setting
 LCD_WR_CMD(0x30,0x0777);
 LCD_WR_CMD(0x31,0x0444);
 LCD_WR_CMD(0x32,0x0555);
 LCD_WR_CMD(0x33,0x0444);
 LCD_WR_CMD(0x34,0x0333);
 LCD_WR_CMD(0x35,0x0333);
 LCD_WR_CMD(0x36,0x0333);
 LCD_WR_CMD(0x37,0x0333);
 LCD_WR_CMD(0x38,0x0444);
 LCD_WR_CMD(0x39,0x0555);
 LCD_WR_CMD(0x3A,0x0666);
 LCD_WR_CMD(0x3B,0x0666);
 LCD_WR_CMD(0x3C,0x0777);
 LCD_WR_CMD(0x3D,0x0777);
 LCD_WR_CMD(0x3E,0x0777);
 LCD_WR_CMD(0x3F,0x0777);
 LCD_WR_CMD(0x40,0x0777);
 LCD_WR_CMD(0x41,0x0777);
 LCD_WR_CMD(0x42,0x0777);
 LCD_WR_CMD(0x43,0x0777);
 LCD_WR_CMD(0x44,0x0777);
 LCD_WR_CMD(0x45,0x0777);
 LCD_WR_CMD(0x46,0x0777);
 LCD_WR_CMD(0x47,0x0777);
 LCD_WR_CMD(0x48,0x0777);
 LCD_WR_CMD(0x49,0x0777);
 LCD_WR_CMD(0x4A,0x0777);
 LCD_WR_CMD(0x4B,0x0777);
 LCD_WR_CMD(0x4C,0x0777);
 LCD_WR_CMD(0x4D,0x0666);
 LCD_WR_CMD(0x4E,0x0666);
 LCD_WR_CMD(0x4F,0x0666);
 
 LCD_WR_CMD(0x85,0x74); //在手机和MP4播视频时很重要.

 LCD_WR_CMD(0x00,0x04);
 LCD_WR_CMD(0x01,0x07);

 //LCD display area setting
 LCD_WR_CMD(0x02,0x00);
 LCD_WR_CMD(0x03,0x0000);
 LCD_WR_CMD(0x04,0xEF);
 LCD_WR_CMD(0x05,0x013F);
 LCD_WR_CMD(0x06,0x00);
 LCD_WR_CMD(0x07,0x0000);
 LCD_WR_CMD(0x08,0xEF);
 LCD_WR_CMD(0x09,0x013F);

 LCD_WR_CMD(0x0A,0x00);
 LCD_WR_CMD(0x0B,0x00);
 LCD_WR_CMD(0x0C,0x00);
 LCD_WR_CMD(0x14,0x00);
 LCD_WR_CMD(0x15,0x00);
 LCD_WR_CMD(0x16,0x00);
 LCD_WR_CMD(0x17,0x01FF);
 LCD_WR_CMD(0x18,0x01FF);
 LCD_WR_CMD(0x13,0x00);
 LCD_WR_CMD(0x19,0x01FF);
 LCD_WR_CMD(0x1B,0x01FF);
 LCD_WR_CMD(0x1C,0x01FF);
 LCD_WR_CMD(0x1A,0x01FF); 
 LCD_WR_CMD(0x1D,0x0E);
 LCD_WR_CMD(0x10,0x06);  //开显示.
 LCD_WR_REG(0x0E);
 delay_us(10);
}

 

void LCD_test()
{
 uint temp,num,i;
 uchar n;
 
 LCD_WR_CMD(0x02,0x00);
 LCD_WR_CMD(0x03,0x0000);
 LCD_WR_CMD(0x04,0xEF);
 LCD_WR_CMD(0x05,0x013F);
 
 LCD_WR_REG(0x0E);
 SET_LCD_CS_LOW();
 SET_LCD_RS_HIGH();
 for(n=0;n<8;n++)
 {
     temp=color[n];
  for(num=40*240;num>0;num--)
    LCD_WR_Data(temp);
 }
 for(n=0;n<8;n++)
 {
 LCD_WR_CMD(0x02,0x00);
 LCD_WR_CMD(0x03,0x0000);
 LCD_WR_CMD(0x04,0xEF);
 LCD_WR_CMD(0x05,0x013F);
 
 LCD_WR_REG(0x0E);
 SET_LCD_CS_LOW();
 SET_LCD_RS_HIGH();
     temp=color[n];
  for(i=0;i<240;i++)
  for(num=0;num<320;num++)
    LCD_WR_Data(temp);
 }
 SET_LCD_CS_HIGH();
}
void LCD_QQ()
{
 uint temp,num;
 const unsigned int *p; 
 uchar n,c,g;
 //显示小QQ图标
    for(g=0;g<8;g++)
 {
  for(c=0;c<6;c++)
  {
   LCD_WR_CMD(0x02,c*40);
   LCD_WR_CMD(0x03,g*40);
   LCD_WR_CMD(0x04,c*40+39);
   LCD_WR_CMD(0x05,g*40+39);
   LCD_WR_REG(0x0E);
   SET_LCD_CS_LOW();
   SET_LCD_RS_HIGH();
   p = (uint*)gImage_qqp;
      for(num=0;num<1600;num++) //
   {  
    LCD_WR_Data(*p++);
   }
   //delay_ms(100);   
  }
   }
 SET_LCD_CS_HIGH();
}

void LCD_clear(uint p)
{
 uint i,j;
 
 LCD_WR_CMD(0x02,0x00);
 LCD_WR_CMD(0x03,0x0000);
 LCD_WR_CMD(0x04,0xEF);
 LCD_WR_CMD(0x05,0x013F);
 
 LCD_WR_REG(0x0E);
 SET_LCD_CS_LOW();
 SET_LCD_RS_HIGH();
 for(i=0;i<320;i++)
 {
  for(j=0;j<240;j++)
  {
    LCD_WR_Data(p);
  }
 }
 SET_LCD_CS_HIGH();
}


//8X16点阵的字符显示函数
//参数说明：
//    casc:字符对应字模中的位置
//         x:显示位置第几列,每行是240/8 ==30列
//         y:显示位置第几行,整屏是320/16==20行

void DisplayChar(uchar casc,uchar postion_x,uchar postion_y)
{
 uchar cTemp;
 uchar i,j,b;
 const uchar *p;
 
 LCD_WR_CMD(0x02,postion_x*8);  //x start point
 LCD_WR_CMD(0x03,postion_y*16);  //y start point
 LCD_WR_CMD(0x04,postion_x*8+7); //x end point
 LCD_WR_CMD(0x05,postion_y*16+15); //y end point
 LCD_WR_REG(0x0E);
 SET_LCD_CS_LOW();
 SET_LCD_RS_HIGH();
 p=ascii;
 p+=casc*16;
 for(j=0;j<16;j++)
 {
  b=*(p+j);
  for(i=0;i<8;i++)
  {
   if(b&0x80)
   {
    LCD_WR_Data(0xffff);
   }
   else
   {
    LCD_WR_Data(0x0000);
   }
   b=b<<1;
   
  } 
 }
 SET_LCD_CS_HIGH();
}

//16X16点阵的汉字显示函数
//参数说明：
//    gb:汉字对应字模中的位置
//         x:显示位置第几列
//         y:显示位置第几行
void DisplayGB2312(uchar gb,uchar postion_x,uchar postion_y)
{
 uchar cTemp;
 uchar i,j,b;
 const uchar *p;
 
 LCD_WR_CMD(0x02,postion_x*16);  //x start point
 LCD_WR_CMD(0x03,postion_y*16);  //y start point
 LCD_WR_CMD(0x04,postion_x*16+15); //x end point
 LCD_WR_CMD(0x05,postion_y*16+15); //y end point
 LCD_WR_REG(0x0E);
 SET_LCD_CS_LOW();
 SET_LCD_RS_HIGH();
 p=(char*)GB2132;
 p+=gb*32;
 for(j=0;j<32;j++)
 {
  b=*(p+j);
  for(i=0;i<8;i++)
  {
   if(b&0x80)
   {
    LCD_WR_Data(0xffff);
   }
   else
   {
    LCD_WR_Data(0x0000);
   }
   b=b<<1;   
  } 
 }
 SET_LCD_CS_HIGH();
}

void DisplayString(uchar *s,uchar x,uchar y)//英文字符串显示.
{
 while (*s) 
 { 
  DisplayChar(*s,x,y);
  if(++x>=30)
  {
   x=0;
   if(++y>=20)
   {
    y=0;
   }
  }
  s++;
    }
}


void main()
{
   uchar x=0;
  uchar y=0;
  uchar i;

  LCD_Init();
  LCD_clear(0);
  
    
  //  delay_ms(1000);
      // LCD_test();
  //  delay_ms(2000);
//  LCD_clear(0);
//    LCD_QQ();
  //  delay_ms(2000);
 
 /* delay_ms(2000);
  LCD_clear(0);
  DisplayString("LTM024D250 testing!",0,0);
  delay_ms(500);
  
  LCD_clear(0);
  for(i=2;i<8;i++)
  {
   DisplayGB2312(i-2,i*2,0);
  }
  DisplayString("2009",4,0);
  DisplayString(  "06",10,0);
  DisplayString(  "15",14,0);
  DisplayString(  "14",18,0);
  DisplayString(  "30",22,0);
  DisplayString(  "22",26,0);
   }
 */ 

  
    for(i=0;i<128;i++)
    {
     DisplayChar(i,x,y);
   if(++x>=30)
   {
    x=0;
    if(++y>=20)
    {
     y=0;
    }
   }
  }  
 while(1) ;
 
}

 

『本文转载自网络,版权归原作者所有,如有侵权请联系删除』

上一篇:MSP430教程8：MSP430单片机复位电路 下一篇:MSP430控制AD9851产生扫频波

相关推荐

热门文章 更多
FPGA及CPLD应用领域不断拓展

技术

硬件开发 EMC IC封装设计 射频RF 单片机IMCU 信号完整性 FPGA 电源 PCB设计 物联网 PCB工艺 PCBA

阅读

电子汇 最新资讯 EDA365原创吧

资源

公开课 研讨会 在线计算器

互动

论坛 外包
电巢APP下载电巢APP下载
关于我们 ｜ 手机版 ｜ EDA365电子论坛网 (粤ICP备18020198号)
GMT, 2020-03-13 09:00 , Processed in 0.109375 second(s), 13 queries , Gzip On.