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MS12864R 测试程序(串口) //***************************************************************************//连线表: CPU=89C52 SystemClock=12Mhz *//CS=P3.0 SCLK=P3.1 SID=P3.2 Reset=RC in Board *//***************************************************************************#include #include #include #include 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 DelayKey(unsigned int Second , unsigned int MS100){ //输入精确到0.1S,是用"," unsigned int i; for(i=0;i { if(Key==0) { Delay(20); while(Key==0) {Delay(20);} break; } else Delay(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}//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); DelayKey(1,5); DisplayDots(0x55); DelayKey(1,5); LcmClearBMP(); PutStr(0,0,str1); DelayKey(1,5); LcmClearTXT(); DisplayDots(0xaa); DelayKey(1,5); }}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//***** 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