lcd1.c

这是一个非常不错的12864液晶串口程序

//***************************************************************************
//连线表: CPU=89C52  SystemClock=12Mhz                                      *
//CS=P3.0           SCLK=P3.1        SID=P3.2       Reset=RC in Board       *
//***************************************************************************
#include<AT89X52.H> 
#include <intrins.h>
 
sbit CS =P2^5;
sbit SCK=P2^7;
sbit SID=P2^6;
sbit Key=P2^4;
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
							   0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,      //第三行汉字位置
							   0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,      //第四行汉字位置
							   };
unsigned char code str2[]="欢迎光临sonsan!!";
unsigned char code str1[]="黄河远上白云间，一片孤城万仞山。羌笛何须怨杨柳，春风不度玉门关。";
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      
       SCK = 1;          
	   SCK = 0;    
	 }
}
//串口接收一个字节
//仅在读取数据的时候用到
//而读出的数据是一次只能读出4bit的
unsigned char ReceiveByte(void)
{    
  unsigned char i,temp1,temp2;   
  temp1=temp2=0;   
  for(i=0;i<8;i++)   
  {          
    temp1=temp1<<1;        
    SCK = 0;          
    SCK = 1;                       
	SCK = 0;           
	if(SID) temp1++;    
  }    
  for(i=0;i<8;i++)    
  {          
    temp2=temp2<<1;           
	SCK = 0;           
	SCK = 1;           
	SCK = 0;           
	if(SID) temp2++;    
  }     
  return ((0xf0&temp1)+(0x0f&temp2));
}
void CheckBusy( void )
{     do  SendByte(0xfc);  
    //11111,RW(1),RS(0),0     
	while(0x80&ReceiveByte());     //BF(.7)=1 Busy
}
void WriteCommand( unsigned char Cbyte )
{     
  CS = 1;     
  CheckBusy();     
  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;     
  CheckBusy();    
  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;
}
unsigned char ReadData( void )
{     
  CheckBusy();     
  SendByte(0xfe);            //11111,RW(1),RS(1),0     
  return ReceiveByte();
}
void Delay(unsigned int MS)
{    
 unsigned char us,usn;    
 while(MS!=0)            //for 12M          
 { 
   usn = 2;                
   while(usn!=0)                      
   {                             
    us=0xf5;                             
	while (us!=0){us--;};                             
	usn--;                       
	}                
   MS--;           
  }
}
//维捷登测试架专用延时函数
/*void Delay(unsigned int Second )
{                              
  //输入精确到0.1S,是用","     
  unsigned int i,j;     
  for(i=0;i<Second;i++)
   for(j=180;j>0;j--);
} */
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
}
//文本区清RAM函数
void LcmClearTXT( void )
{     
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(0x20);
}
//图形区和文本区显示在两个不同的RAM区
//图形区清RAM函数
void LcmClearBMP( void )
{     
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++)            //12864实际为256x32    
 {           
  WriteCommand(0x80|i);      //行位置          
  WriteCommand(0x80);      //列位置           
  for(j=0;j<32;j++)            //256/8=32 byte               
  WriteData(0);     
  }
}
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')      //判断字符串是否显示完毕     
{           
  if(col==8)            //判断换行           
  {            //若不判断,则自动从第一行到第三行                 
  col=0;                 
  row++;           
  }           
  if(row==4) row=0;      //一屏显示完,回到屏左上角           
  WriteCommand(AC_TABLE[8*row+col]);           
  WriteData(*puts);      //一个汉字要写两次           
  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++)            //12864实际为256x32     
  {           
  WriteCommand(0x80|i);      //行位置           
  WriteCommand(0x80);      //列位置           
  for(j=0;j<32;j++)      //256/8=32 byte           
  {            //列位置每行自动增加                 
  WriteData(puts[x]);                
   x++;          
  }   
  }
}
//维捷登测试用点阵显示
void DisplayDots(unsigned char DotByte)
{     
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++)            //12864实际为256x32     
{           
WriteCommand(0x80|i);      //行位置           
WriteCommand(0x80);      //列位置           
for(j=0;j<32;j++)      //256/8=32 byte           
{            //列位置每行自动增加                 
WriteData(DotByte);                            
 }           
 DotByte=~DotByte;     
 }
}
 void main( void )
 {    
  Delay(100);      //等待复位     
  LcmInit();     
  LcmClearTXT();     
  LcmClearBMP();     
  while(1)     
  {           
  LcmClearTXT();           
  PutBMP(bmp1);          
   Delay(1000);                      
   DisplayDots(0x55);           
   Delay(5000);                      
   LcmClearBMP();           
   PutStr(0,0,str1);           
   Delay(8000);                                 
    LcmClearTXT();           
	DisplayDots(0xaa);           
	Delay(5000);     
	}
}
	
	
	unsigned char code bmp1[]={
//********************************************************//
//***** 转换的文件：E:\!Program\!BmpSample\25632.bmp
//***** 源图形宽度 * 高度：256 * 32//***** 调整后宽度 * 高度：256 * 32
//***** 字模格式：横向取模,冗余模式,字节正序,正色取模,
//***** 点阵转换时间：2005/03/ 2   16:4:32//***** 位图点阵占用1024字节
//********************************************************//
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0x80,0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x00,
0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0x80,0x00,0x3F,0xC0,0x00,0x07,0x07,0x00,0x04,0x01,0x00,0x00,
0x38,0x60,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x78,0xE0,0x00,0x3F,0x83,0x80,0x06,0x03,
0x80,0x00,0x1C,0x70,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x02,0x38,0x70,0x00,0xFF,0x07,0x80,
0x06,0x39,0x80,0x00,0x1F,0x70,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x02,0x1C,0x30,0x00,0x7C,
0x0E,0x00,0x06,0x19,0xC0,0x00,0x1F,0x80,0x00,0x01,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x02,0x1C,0x30,
0x00,0x3E,0x1C,0x00,0x06,0x1F,0xC0,0x00,0x7F,0x00,0x00,0x01,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x03,
0x3E,0x30,0x00,0x62,0x1A,0x00,0x0F,0x79,0x00,0x03,0xFE,0x00,0x00,0x01,0x80,
0x00,0x00,0x60,0x0F,0x00,0x3F,0x00,0x00,0x00,0x3C,0x00,0xC0,0x00,0x00,0x01,
0x80,0x07,0x76,0x18,0x00,0xC3,0xC1,0x00,0x1F,0xFB,0x00,0x03,0xFE,0x00,0x00,
0x01,0x80,0x00,0x01,0xE0,0x3F,0xC0,0xF1,0xC0,0x00,0x00,0xF0,0x01,0xC0,0x00,
0x00,0x01,0x80,0x07,0x6E,0x18,0x00,0xCF,0xC1,0x80,0x7E,0x3F,0x80,0x01,0xE2,
0x00,0x00,0x01,0x80,0x00,0x07,0xE0,0x7F,0xE0,0xE0,0xE0,0x00,0x03,0xC0,0x03,
0xC0,0x00,0x00,0x01,0x80,0x07,0x7F,0x98,0x00,0xFE,0x83,0x81,0xFC,0x1E,0xC0,
0x00,0x83,0x00,0x00,0x01,0x80,0x00,0x0F,0xE0,0x63,0xE1,0xE0,0xE0,0x00,0x07,
0x00,0x03,0xC0,0x00,0x00,0x01,0x80,0x06,0xFF,0xD8,0x01,0xFA,0x87,0x00,0xFD,
0xF8,0xC0,0x01,0x73,0x00,0x00,0x01,0x80,0x00,0x01,0xE0,0xC1,0xE1,0xE0,0xE0,
0x00,0x0F,0x00,0x07,0xC0,0x00,0x00,0x01,0x80,0x0F,0xD9,0xD8,0x03,0xE3,0x0E,
0x80,0xFE,0x7E,0xC0,0x03,0xF9,0x80,0x00,0x01,0x80,0x00,0x01,0xE0,0x01,0xE1,
0xF0,0xE0,0x00,0x1E,0x00,0x0B,0xC0,0x00,0x00,0x01,0x80,0x0D,0xB8,0x18,0x1F,
0xC3,0x08,0xC0,0x0E,0x6D,0x80,0x03,0xF1,0x80,0x00,0x01,0x80,0x00,0x01,0xE0,
0x01,0xE0,0xFD,0xC7,0xEF,0x9E,0x00,0x13,0xC0,0x00,0x00,0x01,0x80,0x0D,0xFE,
0x18,0x0F,0xC2,0x10,0xE0,0x1C,0x3F,0x00,0x03,0xE0,0xC0,0x00,0x01,0x80,0x00,
0x01,0xE0,0x01,0xC0,0xFF,0x83,0xC6,0x1F,0xE0,0x13,0xC0,0x00,0x00,0x01,0x80,
0x0D,0xCE,0x18,0x06,0xC2,0x01,0xC0,0x38,0x3E,0x00,0x00,0xE8,0xC0,0x00,0x01,
0x80,0x00,0x01,0xE0,0x01,0x80,0x3F,0x81,0xE4,0x3C,0x78,0x23,0xC0,0x00,0x00,
0x01,0x80,0x0C,0x4C,0x18,0x00,0xC2,0x03,0x80,0x78,0x1F,0xF0,0x00,0xFC,0x60,
0x00,0x01,0x80,0x00,0x01,0xE0,0x03,0x80,0x3F,0xC1,0xE8,0x3C,0x78,0x43,0xC0,
0x00,0x00,0x01,0x80,0x0C,0x5E,0x18,0x00,0xC2,0x07,0x00,0x68,0x3F,0xF8,0x03,
0xFC,0x22,0x00,0x01,0x80,0x00,0x01,0xE0,0x03,0x00,0x6F,0xC0,0xF0,0x3C,0x3C,
0x83,0xC0,0x00,0x00,0x01,0x80,0x06,0x3F,0x38,0x01,0x82,0x0E,0x00,0x09,0xF8,
0x00,0x03,0xC0,0x32,0x00,0x01,0x80,0x00,0x01,0xE0,0x06,0x00,0xC3,0xE0,0x78,
0x3C,0x3C,0xFF,0xF0,0x00,0x00,0x01,0x80,0x07,0x10,0x38,0x00,0x82,0x1C,0x00,
0x0B,0x99,0xC0,0x03,0x00,0x1A,0x00,0x01,0x80,0x00,0x01,0xE0,0x0C,0x11,0xC3,
0xE0,0x78,0x3C,0x3C,0xFF,0xF0,0x00,0x00,0x01,0x80,0x03,0xFF,0xF0,0x00,0x02,
0x38,0x00,0x08,0x30,0xE0,0x02,0x00,0x1E,0x00,0x01,0x80,0x00,0x01,0xE0,0x08,
0x11,0xC1,0xE0,0x7C,0x3C,0x3C,0xFF,0xF0,0x00,0x00,0x01,0x80,0x01,0xEF,0xF0,
0x00,0x00,0xE0,0x00,0x08,0xE0,0x60,0x00,0x00,0x0E,0x00,0x01,0x80,0x00,0x01,
0xE0,0x1F,0xF1,0xC1,0xE0,0xBC,0x1C,0x3C,0x03,0xC0,0x00,0x00,0x01,0x80,0x00,
0x03,0xE0,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x07,0x00,0x01,0x80,
0x00,0x01,0xE0,0x3F,0xE1,0xC1,0xC0,0x9E,0x1E,0x38,0x03,0xC0,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,
0x01,0x80,0x00,0x01,0xF0,0x7F,0xE0,0xE3,0x83,0x1F,0x0E,0x70,0x03,0xC0,0x00,
0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0x80,0x00,0x0F,0xFC,0xFF,0xE0,0x3F,0x07,0xDF,0x83,0xE0,0x03,
0xC0,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,};