lcd.rar_单片机LCD接口

#include <reg52.h> #include <stdlib.h> #include <intrins.h> #include <stdio.h> #define TIMER0_COUNT 0xFE33 #define uchar unsigned char #define uint unsigned int unsigned char count_min_1=0; unsigned char count_min_2=0; unsigned char count_hour_1=0; unsigned char count_hour_2=0; uchar KEY,timer0_tick=0; uint a; /********************引脚定义********************/ sbit RS =P2^5; //数据指令 sbit RW =P2^6; //读写 sbit E =P2^7; //使能 sbit CS1 =P2^3; //左片选 sbit CS2 =P2^4; //中片选 sbit RST =P2^2; //右片选 sbit KEY_YES =P2^0; //YES sbit KEY_NO =P2^1; //NO sbit KEY_UP =P3^4; //UP sbit KEY_DOWN =P3^5; //DOWN unsigned char Page; //页 地址 unsigned char Col; //列 地址 unsigned char code BMP0[]; //启动界面 unsigned char code BMP1[]; //选择界面 unsigned char code BMP2[]; //帐户信息界面 unsigned char code BMP3[]; //公司联系方式 unsigned char code BMP4[]; //公司简介 unsigned char code BMP5[]; unsigned char code Cursor[]; //光标 unsigned char code number_0[]; unsigned char code number_1[]; unsigned char code number_2[]; unsigned char code number_3[]; unsigned char code number_4[]; unsigned char code number_5[]; unsigned char code number_6[]; unsigned char code number_7[]; unsigned char code number_8[]; unsigned char code number_9[]; unsigned char code Company_Profile[]; /*-- 文字: 公司简介 --*/ unsigned char code Information[]; /*-- 文字: 信息查询 --*/ unsigned char code parameters[]; /*-- 文字: 参数设置 --*/ unsigned char code Contact[]; /*-- 文字: 联系方式 --*/ unsigned char code Symbol[]; /*-- 文字: : --*/ unsigned char code DATE[]; unsigned char code TIME[]; void Delay(unsigned int MS); void wtcom(void); void time_display(void) { if(timer0_tick==60) { timer0_tick=0; count_min_1+=1; if(count_min_1==10) { count_min_1=0; count_min_2+=1; if(count_min_2==6) { count_min_2=0; count_hour_1+=1; if(count_hour_1==10) { count_hour_1=0; count_hour_2+=1; if(count_hour_2==2)count_hour_2=0; } } } } } /*************************************************** 定时器服务程序 ***************************************************/ static void timer0_isr(void) interrupt 1 using 0 { TR0=0; TL0=(TIMER0_COUNT&0x00FF); TH0=(TIMER0_COUNT>>8); TR0=1; timer0_tick++; } /*************************************************** 定时器初始化程序 ***************************************************/ static void timer0_initialize(void) { EA=0; timer0_tick=0; TR0=0; TMOD=0x01; TL0=(TIMER0_COUNT&0x00FF); TH0=(TIMER0_COUNT >> 8); PT0=0; ET0=1; TR0=1; EA=1; } /***************************/ /*检查Busy */ /***************************/ void BusyL(void) { CS1= 0; CS2= 0; wtcom(); } void BusyM(void) { CS1= 0; CS2= 1; wtcom(); } void BusyR(void) { CS1= 1; CS2= 0; wtcom(); } void wtcom(void) { RS = 0; //指令 RW = 1; P0 = 0xFF; //输出0xff以便读取正确 E = 1; _nop_(); while(P0&0x80); //Status Read Bit7 = BUSY E = 0; _nop_(); } /********************************************************/ /*根据设定的坐标数据，定位LCM上的下一个操作单元位置 */ /********************************************************/ void Locatexy(void) { unsigned char x,y; switch (Col&0xc0) /* col.and.0xC0 */ { /*条件分支执行 */ case 0: {BusyL();break;}/*左区 */ case 0x40: {BusyM();break;}/*中区 */ case 0x80: {BusyR();break;}/*右区 */ } x = Col&0x3F|0x40; /* col.and.0x3f.or.Set Y Address 相当于x = (Col&0x3F)|0x40;*/ y = Page&0x07|0xB8; /* row.and.0x07.or.set Page */ wtcom(); /* waitting for enable */ RS = 0; //指令 RW = 0; //写 P0 = y; //设置页面地址 E = 1; _nop_(); E = 0; _nop_(); wtcom(); /* waitting for enable */ RS = 0; RW = 0; P0 = x; //设置列地址 E = 1; _nop_(); E = 0; _nop_(); } /***************************/ /*写指令 */ /***************************/ void WriteCommandL( unsigned char CommandByte ) { BusyL(); P0 = CommandByte; RS = 0; //指令 RW = 0; E = 1; _nop_(); E = 0; _nop_(); } void WriteCommandM( unsigned char CommandByte ) { BusyM(); P0 = CommandByte; RS = 0; //指令 RW = 0; E = 1; _nop_(); E = 0; _nop_(); } void WriteCommandR( unsigned char CommandByte ) { BusyR(); P0 = CommandByte; RS = 0; //指令 RW = 0; E = 1; _nop_(); E = 0; _nop_(); } /***************************/ /*读数据 */ /***************************/ unsigned char ReadData( void ) { unsigned char DataByte; Locatexy(); /*坐标定位，返回时保留分区状态不变 */ RS = 1; /*数据输出*/ RW = 1; /*读入 */ P0 = 0xFF; //输出0xff以便读取正确 E = 1; /*读入到LCM*/ _nop_(); DataByte = P0; /*数据读出到数据口P1 */ E = 0; _nop_(); return DataByte; } /***************************/ /*写数据 */ /***************************/ void WriteData( unsigned char DataByte ) { Locatexy(); /*坐标定位，返回时保留分区状态不变 */ RS = 1; /*数据输出*/ RW = 0; /*写输出 */ P0 = DataByte; /*数据输出到数据口 */ E = 1; /*写入到LCM*/ _nop_(); E = 0; _nop_(); } void LcmClear(unsigned char a,unsigned char b,unsigned char c,unsigned char d) { Page = 0; Col = 0; for(Page=a;Page<b;Page++) for(Col=c;Col<d;Col++) WriteData(0); } void LcmInit( void ) { WriteCommandL(0x3f); //开显示 WriteCommandM(0x3f); WriteCommandR(0x3f); WriteCommandL(0xc0); //设置起始地址=0 WriteCommandM(0xc0); WriteCommandR(0xc0); WriteCommandL(0x3f); //开显示 WriteCommandM(0x3f); WriteCommandR(0x3f); LcmClear(0,8,0,192); Col = 0; Page= 0; Locatexy(); } void LcmPutDots( unsigned char a,unsigned char b,unsigned char c,unsigned char d,unsigned char DotByte ) { Page = 0; Col = 0; for(Page=a;Page<b;Page++) { for(Col=c;Col<d;Col++) { WriteData( DotByte ); } } } void LcmPutBMP(unsigned char a,unsigned char b,unsigned char c,unsigned char d,unsigned char *puts ) { unsigned int X=0; Page = 0; Col = 0; for(Page=a;Page<b;Page++) { for(Col=c;Col<d;Col++) { WriteData( puts[X] ); X++; } } } /*void date(void) { LcmPutBMP(0,2,42,50,number_0); //0 LcmPutBMP(0,2,50,58,number_8); //8年 LcmPutBMP(0,2,62,70,number_0); //(0-1)月 LcmPutBMP(0,2,70,78,number_5); //(0-9)月 LcmPutBMP(0,2,82,90,number_2); //0-3日 LcmPutBMP(0,2,90,98,number_6); //0-9日 }*/ void Delay(unsigned int MS) { unsigned char us,usn; while(MS!=0) { usn = 2; //for 12M while(usn!=0) { us=0xf6; while (us!=0){us--;}; usn--; } MS--; } } void key_scan(void) { if(KEY_YES==0){Delay(100);if(KEY_YES==0){KEY=1;}} if(KEY_UP==0){Delay(100);if(KEY_UP==0){KEY=2;a+=1;if(a==5)a=1;}} if(KEY_DOWN==0){Delay(100);if(KEY_DOWN==0){KEY=3;a-=1;if(a==0)a=4;}} if(KEY_NO==0){Delay(100);if(KEY_NO==0){KEY=4;}} } void main_menu(void) { KEY=0; for(;;) { LcmPutBMP(0,2,2,34,DATE); LcmPutBMP(0,2,34,42,Symbol); LcmPutBMP(0,2,106,138,TIME); LcmPutBMP(0,2,138,146,Symbol); LcmPutBMP(2,4,2,66,Company_Profile); LcmPutBMP(2,4,66,74,Symbol); LcmPutBMP(2,4,100,164,Contact); LcmPutBMP(2,4,164,172,Symbol); LcmPutBMP(4,6,2,66,Information); Lcm