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[原创] 液晶模块12232串行驱动方式的C语言驱动程序

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发表于 2013-12-23 22:51:52 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式

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//来自电子开发者论坛
//                 ST7920 演示程序(串口)
//连线表:      CPUClock=12Mhz                      *
//  LCM   -----   CPU                                           *
//  CS    -----   P3.0                                          *
//  SCK   -----   P3.1                                          *
//  SID   -----   P3.2                                          *
//  注:串口模式下仅能写不能读                                   *
//***************************************************************
#include <reg52.h>
#include <intrins.h>
#define LcmXPixel 128 //横像素
#define LcmYPixel 32 //纵像素
sbit CS =P3^0;
sbit SCK=P3^1;
sbit SID=P3^2;
sbit Key=P3^4;
unsigned char code AC_TABLE[]={
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,      //第一行汉字位置
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,      //第二行汉字位置
};
unsigned char code str1[]="液晶模块 12232 !内含标准一级字库";
unsigned char code str2[]="简体字 or ";                       //简体字or
unsigned char code str3[]={0xC1,0x63,0xC5,0xE9,0xA6,0x72,0};//繁體字
unsigned char code bmp1[];
//串口发送一个字节
void SendByte(unsigned char Dbyte)
{
unsigned char i;
for(i=0;i<8;i++)
{
  SCK = 0;
  //Dbyte=Dbyte<<1;  //左移一位
  //SID = CY;   //移出的位给SID
  SID = Dbyte>>(7-i)&0x01;
  SCK = 1;
  SCK = 0;
  }
}
void WriteCommand( unsigned char Cbyte )
{
CS = 1;
SendByte(0xf8);    //11111,RW(0),RS(0),0
SendByte(0xf0&Cbyte);  //高四位
SendByte(0xf0&Cbyte<<4); //低四位(先执行<<)
CS = 0;
}
void WriteData( unsigned char Dbyte )
{
CS = 1;
SendByte(0xfa);    //11111,RW(0),RS(1),0
SendByte(0xf0&Dbyte);  //高四位
SendByte(0xf0&Dbyte<<4); //低四位(先执行<<)
CS = 0;
}
void DelayMS(unsigned int MS)
{
unsigned char us,usn;
while(MS!=0)
{
  usn = 2; //for 12M
  while(usn!=0)
  {
   us=0xf6;
   while (us!=0){us--;};
   usn--;
  }
  MS--;
}
}
void DelayKey(unsigned int Second , unsigned int MS100)
{
unsigned int i;
for(i=0;i<Second*100+MS100*10;i++)
{
  if(Key==0)
  {
   DelayMS(20);
   while(Key==0) {DelayMS(20);}
   break;
  }
  else DelayMS(10);
}
}
void LcmInit( void )
{
WriteCommand(0x30); //8BitMCU,基本指令集合
WriteCommand(0x03); //AC归0,不改变DDRAM内容
WriteCommand(0x0C); //显示ON,游标OFF,游标位反白OFF
WriteCommand(0x01); //清屏,AC归0
WriteCommand(0x06); //写入时,游标右移动
}
void LcmClearTXT( unsigned char FillByte )
{
unsigned char i;
WriteCommand(0x30); //8BitMCU,基本指令集合
WriteCommand(0x80); //AC归起始位
for(i=0;i<64;i++)
    WriteData(FillByte);
}
void LcmClearBMP( unsigned char FillByte )
{
unsigned char i,j;
WriteCommand(0x34); //8Bit扩充指令集,即使是36H也要写两次
WriteCommand(0x36); //绘图ON,基本指令集里面36H不能开绘图
for(i=0;i<32;i++)  //12832实际为256x32
{
  WriteCommand(0x80|i);
  WriteCommand(0x80);
  for(j=0;j<32;j++)
      WriteData(FillByte);
}
}

void PutStr(unsigned char row,unsigned char col,unsigned char *puts)
{
WriteCommand(0x30); //8BitMCU,基本指令集合
WriteCommand(AC_TABLE[8*row+col]); //起始位置
while(*puts != '\0')
{
  if(col==8)
  {
   col=0;
   row++;
  }
  if(row==2) row=0; //一屏显示完,回到屏左上角
  WriteCommand(AC_TABLE[8*row+col]);
  WriteData(*puts);
  puts++;
  WriteData(*puts);
  puts++;
  col++;
}
}
void PutBMP(unsigned char *puts)
{
unsigned int x=0;
unsigned char i,j;
WriteCommand(0x34); //8Bit扩充指令集,即使是36H也要写两次
WriteCommand(0x36); //绘图ON,基本指令集里面36H不能开绘图
for(i=0;i<32;i++)
{
  WriteCommand(0x80|i); //行位置
  WriteCommand(0x80); //列位置
  for(j=0;j<16;j++)
  {
   WriteData(puts[x]);
   x++;
  }
}
}
void PutDots(unsigned char DotByte,unsigned char n)
{
unsigned char i,j,k;
WriteCommand(0x34); //8Bit扩充指令集,即使是36H也要写两次
WriteCommand(0x36); //绘图ON,基本指令集里面36H不能开绘图
for(i=0;i<(32/n);i++)
{
  for(k=0;k<n;k++)
  {
   WriteCommand(0x80|(i*n+k)); //行位置
   WriteCommand(0x80);  //列位置
   for(j=0;j<16;j++)
   {
    WriteData(DotByte);
   }
  }
  DotByte=~DotByte;
}
}
//来自电子开发者论坛
void main( void )
{
DelayMS(100); //等待复位
LcmInit();
LcmClearTXT(0x20);
LcmClearBMP(0x00);
while(1)
{
  LcmClearTXT(0x20);
  PutBMP(bmp1);
  DelayKey(1,5);
  
  LcmClearBMP(0xFF);
  DelayKey(1,5);
  
  LcmClearBMP(0x00);
  PutStr(0,0,str1);
  DelayKey(1,5);
  
  PutStr(0,0,str2);
  PutStr(0,5,str3);
  PutStr(1,0,str2);
  PutStr(1,5,str3);
  DelayKey(1,5);

  LcmClearTXT(0x20);
  PutDots(0x55,1);
  DelayKey(1,5);
  PutDots(0xAA,1);
  DelayKey(1,5);
  PutDots(0x33,2);
  DelayKey(1,5);
  PutDots(0xCC,2);
  DelayKey(1,5);
  
  PutDots(0x0F,4);
  DelayKey(1,5);
  PutDots(0xF0,4);
  DelayKey(1,5);
}
}
unsigned char code bmp1[]={
//********************************************************//
//***** 源图形宽度 * 高度：128 * 32
//***** 调整后宽度 * 高度：128 * 32
//***** 字模格式：横向取模,冗余模式,字节正序,正色取模,
//***** 位图点阵占用512字节
//********************************************************//
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xC0,0x42,0x00,0x84,0x07,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x4D,0xE1,0xFF,0xC4,0x22,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x3E,0xFC,0x48,0xA1,0x04,0x04,0x22,0x08,0x38,0x71,0xE1,0xC0,0x00,0x00,
0x00,0x00,0x04,0x88,0x08,0xA1,0x04,0x04,0x22,0x18,0x44,0x8A,0x12,0x20,0x00,0x00,
0x00,0x00,0x15,0x28,0xE8,0xA3,0x3F,0x87,0xFE,0x38,0x44,0x8A,0x12,0x20,0x00,0x00,
0x00,0x00,0x1C,0x20,0x28,0xA3,0x24,0x84,0x22,0x08,0x04,0x08,0x10,0x20,0x00,0x00,
0x00,0x00,0x0C,0x60,0x28,0xA1,0x3F,0x84,0x22,0x08,0x08,0x10,0x60,0x40,0x00,0x00,
0x00,0x00,0x0C,0x60,0x2E,0xA1,0x04,0x07,0xFE,0x08,0x10,0x20,0x10,0x80,0x00,0x00,
0x00,0x00,0x1E,0x60,0x2C,0xE1,0x14,0x04,0x22,0x08,0x20,0x42,0x11,0x00,0x00,0x00,
0x00,0x00,0x12,0x90,0x20,0x81,0x1C,0x04,0x22,0x08,0x40,0x82,0x12,0x00,0x00,0x00,
0x00,0x00,0x21,0x8C,0x70,0x01,0x0E,0x04,0x22,0x08,0x7C,0xF9,0xE3,0xE0,0x00,0x00,
0x00,0x00,0x03,0x04,0x8F,0xF1,0x31,0xC8,0x66,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xC0,0x42,0x00,0x84,0x07,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x4D,0xE1,0xFF,0xC4,0x22,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x3E,0xFC,0x48,0xA1,0x04,0x04,0x22,0x08,0x38,0x71,0xE1,0xC0,0x00,0x00,
0x00,0x00,0x04,0x88,0x08,0xA1,0x04,0x04,0x22,0x18,0x44,0x8A,0x12,0x20,0x00,0x00,
0x00,0x00,0x15,0x28,0xE8,0xA3,0x3F,0x87,0xFE,0x38,0x44,0x8A,0x12,0x20,0x00,0x00,
0x00,0x00,0x1C,0x20,0x28,0xA3,0x24,0x84,0x22,0x08,0x04,0x08,0x10,0x20,0x00,0x00,
0x00,0x00,0x0C,0x60,0x28,0xA1,0x3F,0x84,0x22,0x08,0x08,0x10,0x60,0x40,0x00,0x00,
0x00,0x00,0x0C,0x60,0x2E,0xA1,0x04,0x07,0xFE,0x08,0x10,0x20,0x10,0x80,0x00,0x00,
0x00,0x00,0x1E,0x60,0x2C,0xE1,0x14,0x04,0x22,0x08,0x20,0x42,0x11,0x00,0x00,0x00,
0x00,0x00,0x12,0x90,0x20,0x81,0x1C,0x04,0x22,0x08,0x40,0x82,0x12,0x00,0x00,0x00,
0x00,0x00,0x21,0x8C,0x70,0x01,0x0E,0x04,0x22,0x08,0x7C,0xF9,0xE3,0xE0,0x00,0x00,
0x00,0x00,0x03,0x04,0x8F,0xF1,0x31,0xC8,0x66,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
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