//**========本程序為GDM12864E內帶中文字符集的液晶顯示模塊驅動程序===========
//**這里采用串行輸入工作方式,占用3條IO口
//**最初由AVR單片機應用，現移植到c8051fxxx單片機上應用
//**作者：陳豐良
//**移植時間：2004.3.18
//**
//**
//================================================
//實用于晶振為2MHz
extern DelayMs(unsigned char x);
//================================================
extern DelayUs(unsigned int t);
//================================================
//讀取忙標志（BF），可以確認內部動作是否完成，同時
//可以讀出位址計數（AC）的值
extern unsigned char LCDWaitLeisure();
//================================================
//將操作命令寫入對液晶顯示器  
extern LCDWriteCommand(unsigned char x);
//從LCD讀出n字節數據============================= 
extern LCDReadNByte(unsigned char *pd,unsigned char n);
//向LCD寫入n字節數據============================= 
extern LCDWriteNByte(unsigned char *pd,unsigned char n);
//=============================================            
//設定字符串將要從y行，x列寫入  
extern LCDSelectPlace(unsigned char PlaceY,unsigned char PlaceX);
//================================================
//將要顯示的字符編碼寫入液晶顯示器
//輸入條件為：字符串地址pc，寫入的行y、列位置x、字數n  
extern LCDPrintChar(unsigned char  *pd,unsigned char PlaceY,unsigned char PlaceX,unsigned char n);   
//=================================================
//將要顯示的字符串編碼寫入液晶顯示器
//輸入條件為：字符串地址pc，寫入的行y、列位置x、字數n  
extern LCDPrintString(unsigned char code *pd,unsigned char PlaceY,unsigned char PlaceX);    
//清屏
extern LCDClearScreen();
//================================================ 
//液晶顯示器的初始化
extern void LCDInitialize();    
//=========向LCD自定義CGRAM中寫入4個自定義字符代碼，=======================   
//GDM12864E只能自定義4個中文字符（16x16格式），1個中文字符由32個字節編碼組成
//ucPlace=0對應CGRAM 0x40地址，1對應0x50,2對應0x60,3對應0x70
extern LCDInputMyCharCode(unsigned char code *pd,unsigned char ucPlace);  
//=================LCD圖形區域清屏============================================
//最小清除區域1行8點,因此PlaceY=0~63行,PlaceX=8~128列;    
extern LCDClearPicture(unsigned char PlaceY,unsigned char PlaceX,
				unsigned char WidthX,unsigned char WidthY);
//=========向LCD中GDRAM寫入圖形代碼==============================================
//n 為本圖形數據總字節數，width為本圖形水平寬度（一般1-4字節），PlaceX,PlaceY為x,y軸座標
//如果format=0;則圖象正常顯示，否則圖象取反白顯示
extern LCDPrintPicture(unsigned char code *pd,unsigned char PlaceY,unsigned char PlaceX,
					unsigned char WidthX,unsigned char WidthY,unsigned char format);
//========在LCD屏幕的指定座標x,y上描點=================================
//PlaceX,PlaceY為x,y軸座標,DotStatus=1,打點，=0清除點
//PlaceX=0~127,PlaceY=0~63
extern LCDPrintDot(unsigned char PlaceX,unsigned char PlaceY,unsigned char DotStatus);					  
//=================在指定區域顯示16x32格式的數字=======================
//1.無效零消隱處理：0023.98處理為23.98
//2.x軸位置范圍為0-7，y軸范圍為1，2,一行最多顯示8個數字
//3.*pd為要顯示的數據，n為數據個數(包含小數點)                                           
//4.DotNumber小數點個數,如果為整數，則DotNumber=0
extern LCDPrintLargeNumber(	unsigned char *pd,unsigned char n,unsigned char DotNumber,
				unsigned char PlaceY,unsigned char PlaceX);  
//=================在指定區域顯示16x32格式的數字=======================
//1.無效零消隱處理：0023.98處理為23.98
//2.x軸位置范圍為0-7，y軸范圍為1，2,一行最多顯示8個數字
//3.*pd為要顯示的數據，n為數據個數(包含小數點)                                           
//4.DotNumber小數點個數,如果為整數，則DotNumber=0
//LCDPrintStandardNumber(	unsigned char *pd,unsigned char n,unsigned char DotNumber,
//				unsigned char PlaceY,unsigned char PlaceX);  
//=================進度條的顯示（在x軸方向顯示）=============
//1.percent為百分比0~100整數
//2.Fill[16]:x軸方向當前填充位置（0~16），填充內容，每個填充內容為8bit，1字節
//3.y軸方向為16bit,第一與最后一個bit顯示0，中間14bit 為Fill值
//4.PlaceY為在第幾行顯示0~63
extern LCDPrintProgress(unsigned char percent,unsigned char PlaceY,unsigned char ShowFlag);
/*================================================*/