#include "absacc.h" #include "intrins.h" //自定义库 在"C:\comp51\UserLib\"文件夹中 #include ".\inc\ASCII816.h" //标准ASCII库 #include ".\inc\HZTable.h" //汉字点阵库(自做) #include ".\inc\Menu.h" //菜单库(自做) // LCD128*64 数据线 #define LCD12864DataPort P1 // LCD128*64 I/O 信号管脚 sbit di =P3^1; // 数据\指令 选择 sbit rw =P3^3; // 读\写 选择 sbit en =P3^2; // 读\写使能 sbit cs1 =P3^4; // 片选1,低有效(前64列) sbit cs2 =P3^5; // 片选2,低有效(后64列) sbit reset=P0^7; // 复位 /*----------------------------------------------------------------------------------------------------*/ /* ****函数列表**** //开关显示 void SetOnOff(unsigned char onoff) //选择屏幕 //screen: 0-全屏,1-左屏,2-右 void SelectScreen(unsigned char screen) //清屏 //screen: 0-全屏,1-左屏,2-右 void ClearScreen(unsigned char screen) //显示8*8点阵 //旋转90度:字模被竖着切分 //lin:行(0-7), column: 列(0-15) //address : 字模区首地址 void Show88(unsigned char lin,unsigned char column,unsigned int address) //显示8*16字符 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-15) //character:字符代码(标准ASCII码) void ShowChar(unsigned char lin,unsigned char column,unsigned char character) //显示8*16字符串 //!!!只能显示在一行上即: 串长+column <=15 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-15) //address : 字模区首地址 void ShowString(unsigned char lin,unsigned char column, unsigned char *string) //显示一个汉字 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-15) //hzcode: 汉字代码(自定义的) void ShowHZ(unsigned char lin,unsigned char column,unsigned int hzcode) //显示图片 //旋转90度 :字模被竖着切分 //startline :开始行 //startcolumn:开始列 //linechar :图片行点除8(图片以8*8点阵为单位) //columnchar :图片列点除8(图片以8*8点阵为单位) //address : 字模区首地址 void ShowPicture(unsigned char startline,unsigned char startcolumn,unsigned char linechar,unsigned char columnchar,unsigned int address) //!!问题大户 //显示一行汉字 //lin:行 //lineheadaddr: 此行汉字代码区首地址 void ShowLine(unsigned char lin,unsigned int lineheadaddr) //显示一屏汉字 //pageheadaddr:此屏汉字代码地址区首地址 void ShowPage(unsigned int pageheadaddr) //反显一个8*8字块 //lin:行(0-3), column: 列(0-7) void ReverseShow88(unsigned char lin,unsigned char column) //反显一个字符 //lin:行(0-4), column: 列(0-15) void ReverseShowChar(unsigned char lin,unsigned char column) //反显一个汉字 //lin:行(0-3), column: 列(0-7) ReverseShowHZ(unsigned char lin,unsigned char column) //反显一行汉字 //lin:行 ReverseShow(unsigned char lin) //初始化LCD void InitLCD() ****函数列表结束**** */ /*----------------------------------------------------------------------------------------------------*/ /*--基本函数源程序------------------------------------------------------------------------------------*/ //延时 Lcd12864delay() { unsigned int i=500; while(i--) {;} } /*----------------------------------------------------------------------------------------------------*/ //状态检查 void CheckState() { unsigned char dat; di=0; rw=1; do{ LCD12864DataPort=0xff; en=1; dat=LCD12864DataPort; en=0; dat=0x90 & dat; //仅当第4,7位为0时才可操作 }while(!(dat==0x00)); } /*----------------------------------------------------------------------------------------------------*/ //写显示数据 //dat:显示数据 void WriteByte(unsigned char dat) { CheckState(); di=1; rw=0; LCD12864DataPort=dat; en=1; en=0; } /*-----------------------------------------------------------------------------------------------------*/ //向LCD发送命令 //command :命令 SendCommandToLCD(unsigned char command) { CheckState(); rw=0; LCD12864DataPort=command; en=1; en=0; } /*----------------------------------------------------------------------------------------------------*/ //设定行地址(页)--X 0-7 void SetLine(unsigned char line) { line=line & 0x07; // 0<=line<=7 line=line|0xb8; //1011 1xxx SendCommandToLCD(line); } //设定列地址--Y 0-63 void SetColumn(unsigned char column) { column=column &0x3f; // 0=<column<=63 column=column | 0x40; //01xx xxxx SendCommandToLCD(column); } //设定显示开始行--XX void SetStartLine(unsigned char startline) //0--63 { startline=startline & 0x07; startline=startline|0xc0; //1100 0000 SendCommandToLCD(startline); } //开关显示 void SetOnOff(unsigned char onoff) { onoff=0x3e | onoff; //0011 111x SendCommandToLCD(onoff); } /*---------------------------------------------------------------------------------------------------*/ //选择屏幕 //screen: 0-全屏,1-左屏,2-右屏 void SelectScreen(unsigned char screen) { //北京显示器:负有效 cs1: 0--右; cs2: 0--左 switch(screen) { case 0: cs1=0;//全屏 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); cs2=0; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); break; case 1: cs1=1;//左屏 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); cs2=0; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); break; case 2: cs1=0;//右屏 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); cs2=1; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); break; } } /*---------------------------------------------------------------------------------------------------*/ //清屏 //screen: 0-全屏,1-左屏,2-右 void ClearScreen(unsigned char screen) { unsigned char i,j; SelectScreen(screen); for(i=0;i<8;i++) { SetLine(i); for(j=0;j<64;j++) { WriteByte(0x00); } } } /*--------------------------------------------------------------------------------------------------*/ //显示8*8点阵 //旋转90度:字模被竖着切分 //lin:行(0-7), column: 列(0-15) //address : 字模区首地址 void Show88(unsigned char lin,unsigned char column,unsigned int address) { unsigned char i; if(column>16) {return;} if(column<8) SelectScreen(1); //如果列数<8(0,1,2,3,4,5,6,7)则写在第一屏上 else { SelectScreen(2); //否则 (8,9,10,11,12,13,14,15)写在第二屏上 column=column & 0x07; //防止越界 } SetLine(lin); SetColumn(column<<3); for(i=0;i<8;i++) WriteByte( CBYTE[address+i] ); } /*------------------------------------------------------------------------------------------------*/ //显示8*16字符 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-15) //character:字符代码(标准ASCII码) void ShowChar(unsigned char lin,unsigned char column,unsigned char character) { lin=lin<<1; Show88(lin ,column,ASCII816[character-0x20] ); Show88(lin+1,column,ASCII816[character-0x20]+8 ); } /*-----------------------------------------------------------------------------------------------*/ /* //显示8*16字符串 //!!!只能显示在一行上即: 串长+column <=15 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-15) //address : 字模区首地址 void ShowString(unsigned char lin,unsigned char column, unsigned char *string) { unsigned char ch; unsigned char i=0; while(*string!='\0') { ch=*string; if(i+column >15) break; //(只能显示在一行上即: 串长+column <=15) ShowChar(lin,i+column,ch); string++; i++; } } */ /*----------------------------------------------------------------------------------------------*/ //显示一个汉字 //旋转90度:字模被竖着切分 //lin:行(0-3), column: 列(0-7) //hzcode: 汉字代码(自定义的) //uchar code HZtable void ShowHZ(unsigned char lin,unsigned char column,unsigned int hzcode) { lin=lin<<1; //lin*2 Show88(lin,column,HZTable[hzcode]); Show88(lin,column+1,HZTable[hzcode]+8); Show88(lin+1,column,HZTable[hzcode]+16); Show88(lin+1,column+1,HZTable[hzcode]+24); } /*----------------------------------------------------------------------------------------------*/ //显示图片 //旋转90度 :字模被竖着切分 //startline :开始行 //startcolumn:开始列 //linechar :图片行点除8(图片以8*8点阵为单位) //columnchar :图片列点除8(图片以8*8点阵为单位) //address : 字模区首地址 void ShowPicture(unsigned char startline,unsigned char startcolumn,unsigned char linechar,unsigned char columnchar,unsigned int address) { unsigned char i,j; for(i=0;i<columnchar;i++) for(j=0;j<linechar;j++) Show88(startline+i , startcolumn+j , address+(i*linechar+j)*8 ); } /*----------------------------------------------------------------------------------------------*/ //显示一行字符串(汉字,字母混排,一行16字节) //lin:行 //lineheadaddr: 此行汉字代码区首地址 void ShowLine(unsigned char lin,unsigned char linehead[]) { unsigned char i; unsigned char byte; unsigned int hzcode; for( i=0; i<16; ) { byte=linehead[i]; if(byte < 0x80) //字母 { if(i>15) return; //!!编译器有问题,须强制退出 ShowChar(lin, i , byte); i=i+1; } else // byte >= 0x80(汉字) { if(i>15) return; //!!编译器有问题,须强制退出 byte=byte & 0x7f; //最高位置0,即:减去0x8000 hzcode=(unsigned int)byte<<8; //?? //高8位 hzcode=hzcode+linehead[i+1]; //加低8位,组合成整型数地址 ShowHZ( lin,i,hzcode); i=i+2; } } } /*-------------------- --------------------------------------------------------------------------------*/ //显示一屏汉字 //pageheadaddr:此屏汉字代码地址区首地址 void ShowPage(unsigned char pagehead[][16]) { unsigned char i; for(i=0;i<4;i++) ShowLine(i,pagehead[i]); //1行8个汉字,16字节 } /*----------------------------------------------------------------------------------------------------*/ //读显示数据 unsigned char ReadByte() { unsigned char dat; CheckState(); di=1; rw=1; LCD12864DataPort=0xff; en=1; dat=LCD12864DataPort; en=0; return(dat); } /*----------------------------------------------------------------------------------------------------*/ //反显一个8*8字块 //lin:行(0-3), column: 列(0-7) void ReverseShow88(unsigned char lin,unsigned char column) { unsigned char i; unsigned char tab[8]; if(column<8) SelectScreen(1); //如果列数<4(0,1,2,3),则写在第一屏上 else SelectScreen(2); //否则 (4,5,6,7), 写在第二屏上 //读上部8列 column=column<<3; //每个方块8*8大小 SetLine(lin); SetColumn(column); tab[0]=ReadByte(); //空读!!!!! //? for(i=0;i<8;i++) tab[i]=~ReadByte(); //写回 SetLine(lin); SetColumn(column); for(i=0;i<8;i++) WriteByte(tab[i]); } /*----------------------------------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------------------------------*/ //反显一个字符 //lin:行(0-4), column: 列(0-15) void ReverseShowChar(unsigned char lin,unsigned char column) { lin=lin<<1; ReverseShow88(lin ,column); ReverseShow88(lin+1,column); } /*----------------------------------------------------------------------------------------------------*/ //反显一个汉字 //lin:行(0-3), column: 列(0-7) ReverseShowHZ(unsigned char lin,unsigned char column) { lin=lin<<1; column=column<<1; ReverseShow88(lin ,column ); ReverseShow88(lin ,column+1); ReverseShow88(lin+1,column ); ReverseShow88(lin+1,column+1); } /*----------------------------------------------------------------------------------------------------*/ //反显一行汉字 //lin:行 ReverseShow(unsigned char lin) { unsigned char i; for(i=0;i<8;i++) ReverseShowHZ(lin,i); } /*----------------------------------------------------------------------------------------------------*/ void InitLCD() //初始化LCD { unsigned char i=250; //延时 while(i--); //reset=0;//复位 //reset=1; SelectScreen(0); SetOnOff(0); //关显示 ClearScreen(1);//清屏 ClearScreen(2); SelectScreen(0); SetOnOff(1); //开显示 SelectScreen(0); SetStartLine(0); //开始行:0 } /*----------------------------------------------------------------------------------------------------*/ void Reset() //液晶复位 { //reset 低复位 _|- reset=0; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); reset=1; //全屏 cs1=0; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); cs2=0; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); SendCommandToLCD(0x3F); }