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MS12864R 測試程序(串口) //***************************************************************************//連線表: 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, //第一行漢字位置0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97, //第二行漢字位置0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f, //第三行漢字位置0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f, //第四行漢字位置};unsigned char code str2[]="歡迎光臨sonsan!!";unsigned char code str1[]="黃河遠上白云間，一片孤城萬仞山。羌笛何須怨楊柳，春風不度玉門關。";unsigned char code bmp1[];//串口發送一個字節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; //移出的位給SID SCK = 1; SCK = 0; }}//串口接收一個字節//僅在讀取數據的時候用到//而讀出的數據是一次只能讀出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(先執行<<) 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(先執行<<) 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--; }}//維捷登測試架專用延時函數void DelayKey(unsigned int Second , unsigned int MS100){ //輸入精確到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歸0,不改變DDRAM內容 WriteCommand(0x0C); //顯示ON,游標OFF,游標位反白OFF WriteCommand(0x01); //清屏,AC歸0 WriteCommand(0x06); //寫入時,游標右移動}//文本區清RAM函數void LcmClearTXT( void ){ unsigned char i; WriteCommand(0x30); //8BitMCU,基本指令集合 WriteCommand(0x80); //AC歸起始位 for(i=0;i<64;i++) WriteData(0x20);}//圖形區和文本區顯示在兩個不同的RAM區//圖形區清RAM函數void LcmClearBMP( void ){ unsigned char i,j; WriteCommand(0x34); //8Bit擴充指令集,即使是36H也要寫兩次 WriteCommand(0x36); //繪圖ON,基本指令集里面36H不能開繪圖 for(i=0;i<32;i++) //12864實際為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') //判斷字符串是否顯示完畢 { if(col==8) //判斷換行 { //若不判斷,則自動從第一行到第三行 col=0; row++; } if(row==4) row=0; //一屏顯示完,回到屏左上角 WriteCommand(AC_TABLE[8*row+col]); WriteData(*puts); //一個漢字要寫兩次 puts++; WriteData(*puts); puts++; col++; }}void PutBMP(unsigned char *puts){ unsigned int x=0; unsigned char i,j; WriteCommand(0x34); //8Bit擴充指令集,即使是36H也要寫兩次 WriteCommand(0x36); //繪圖ON,基本指令集里面36H不能開繪圖 for(i=0;i<32;i++) //12864實際為256x32 { WriteCommand(0x80|i); //行位置 WriteCommand(0x80); //列位置 for(j=0;j<32;j++) //256/8=32 byte { //列位置每行自動增加 WriteData(puts[x]); x++; } }}//維捷登測試用點陣顯示void DisplayDots(unsigned char DotByte){ unsigned char i,j; WriteCommand(0x34); //8Bit擴充指令集,即使是36H也要寫兩次 WriteCommand(0x36); //繪圖ON,基本指令集里面36H不能開繪圖 for(i=0;i<32;i++) //12864實際為256x32 { WriteCommand(0x80|i); //行位置 WriteCommand(0x80); //列位置 for(j=0;j<32;j++) //256/8=32 byte { //列位置每行自動增加 WriteData(DotByte); } DotByte=~DotByte; }}void main( void ){ Delay(100); //等待復位 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[]={//********************************************************////***** 轉換的文件：E:\!Program\!BmpSample\25632.bmp//***** 源圖形寬度 * 高度：256 * 32//***** 調整后寬度 * 高度：256 * 32//***** 字模格式：橫向取模,冗余模式,字節正序,正色取模,//***** 點陣轉換時間：2005/03/ 2 16:4:32//***** 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