8位數(shù)碼管顯示電子時(shí)鐘c51單片機(jī)程序(共8頁(yè))

1、8位數(shù)碼管顯示電子時(shí)鐘c51單片機(jī)程序時(shí)間：2012-09-10 13:52:26 來(lái)源： 作者：/*8位數(shù)碼管顯示 時(shí)間格式 055000 標(biāo)示05點(diǎn)50分00秒S1 用于小時(shí)加1操作S2 用于小時(shí)減1操作S3 用于分鐘加1操作S4 用于分鐘減1操作*/#includesbit KEY1=P30; /定義端口參數(shù)sbit KEY2=P31;sbit KEY3=P32;sbit KEY4=P33;sbit LED=P12; /定義指示燈參數(shù)code unsigned char tab=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f; /共陰極

2、數(shù)碼管09unsigned char StrTab8; /定義緩沖區(qū)unsigned char minute=19,hour=23,second; /定義并初始化為 12:30:00void delay(unsigned int cnt) while(-cnt);/*/* 顯示處理函數(shù) */*/void Displaypro(void) StrTab0=tabhour/10; /顯示小時(shí) StrTab1=tabhour%10; StrTab2=0x40; /顯示- StrTab3=tabminute/10; /顯示分鐘 StrTab4=tabminute%10; StrTab5=0x40; /

3、顯示- StrTab6=tabsecond/10; /顯示秒 StrTab7=tabsecond%10;main() TMOD |=0x01; /定時(shí)器0 10ms inM crystal 用于計(jì)時(shí) TH0=0xd8; /初值 TL0=0xf0; ET0=1; TR0=1; TMOD |=0x10; /定時(shí)器1用于動(dòng)態(tài)掃描 TH1=0xF8; /初值 TL1=0xf0; ET1=1; TR1=1; EA =1; Displaypro(); /調(diào)用顯示處理函數(shù) while(1) if(!KEY1) /按鍵1去抖以及動(dòng)作 delay(10000); if(!KEY1) hour+; if(hour

4、=24) hour=0; /正常時(shí)間 小時(shí) 加1 Displaypro(); if(!KEY2) /按鍵2去抖以及動(dòng)作 delay(10000); if(!KEY2) hour-; if(hour=255) hour=23; /正常時(shí)間 小時(shí)減1 Displaypro(); if(!KEY3) /按鍵去抖以及動(dòng)作 delay(10000); if(!KEY3) minute+; if(minute=60) minute=0; /分加1 Displaypro(); if(!KEY4) /按鍵去抖以及動(dòng)作 delay(10000); if(!KEY4) minute-; if(minute=255

5、) minute=59; /分減1 Displaypro(); /*/* 定時(shí)器1中斷 */*/void time1_isr(void) interrupt 3 using 0 /定時(shí)器1用來(lái)動(dòng)態(tài)掃描 static unsigned char num; TH1=0xF8; /重入初值 TL1=0xf0; switch (num) case 0:P2=0;P0=StrTabnum;break; /分別調(diào)用緩沖區(qū)的值進(jìn)行掃描 case 1:P2=1;P0=StrTabnum;break; case 2:P2=2;P0=StrTabnum;break; case 3:P2=3;P0=StrTabnu

6、m;break; case 4:P2=4;P0=StrTabnum;break; case 5:P2=5;P0=StrTabnum;break; case 6:P2=6;P0=StrTabnum;break; case 7:P2=7;P0=StrTabnum;break; default:break; num+; /掃描8次，使用8個(gè)數(shù)碼管 if(num=8) num=0;/*/* 定時(shí)器0中斷 */*/void tim(void) interrupt 1 using 1 static unsigned char count; /定義內(nèi)部局部變量 TH0=0xd8; /重新賦值 TL0=0xf

7、0; count+; switch (count) case 0: case 20: case 40: case 60: case 80:Displaypro();break; /隔一定時(shí)間調(diào)用顯示處理 case 50:P1=P1;break; /半秒 LED 閃爍 default:break; if (count=100) count=0; second+; /秒加1 if(second=60) second=0; minute+; /分加1 if(minute=60) minute=0; hour+; /時(shí)加1 if(hour=24) hour=0; 基于單片機(jī)的LCD1602控制總線模式

8、時(shí)間：2012-09-10 13:50:39 來(lái)源： 作者：第一行顯示W(wǎng)elcome;第二行顯示=Happy day;若要顯示其他字符，請(qǐng)直接往數(shù)組 LCMLineOne16和LCMLineTwo16填充相應(yīng)的代碼。直接上圖，仿真圖如下：源程序如下，可以對(duì)比時(shí)序方式，理解總線的操作方法。#include/#include#define uchar unsigned char#define uint unsigned int #define busy 0x80uchar xdata LCMWriteCOM _at_ 0x80ff; /寫(xiě)指令寄存器uchar xdata LCMReadCOM _a

9、t_ 0xa0ff ; /讀指令寄存器uchar xdata LCMWriteData _at_ 0xc0ff ; /寫(xiě)數(shù)據(jù)寄存器uchar xdata LCMReadData _at_ 0xe0ff ; /讀數(shù)據(jù)寄存器uchar data LCMLineOne16=Welcome; /第一行顯示的數(shù)據(jù)uchar data LCMLineTwo16=Happy day; /第二行顯示的數(shù)據(jù)void Delayms(uchar ms) uchar i,j; for(i=0;ims;i+) for(j=0;j57;j+) ;/寫(xiě)指令寄存器void LCMWriteC(uchar COMData)

10、uchar LCMStatus; do LCMStatus=(LCMReadCOM&busy); while(LCMStatus!=0); LCMWriteCOM=COMData;/讀指令寄存器uchar LCMReadC()uchar LCMStatus; do LCMStatus=(LCMReadCOM&busy); while(LCMStatus!=0); LCMStatus=LCMReadCOM; return(LCMStatus);/讀數(shù)據(jù)寄存器uchar LCMReadD(uchar addr)uchar LCMStatus; do LCMStatus=(LCMReadCOM&bu

11、sy); while(LCMStatus!=0); LCMWriteC(0x80+addr); LCMStatus=LCMReadData; return(LCMStatus);/寫(xiě)數(shù)據(jù)寄存器帶地址void LCMWriteDAdd(uchar addr,uchar LCMData)uchar LCMStatus; do LCMStatus=(LCMReadCOM&busy); while(LCMStatus!=0); LCMWriteC(0x80+addr); LCMWriteData=LCMData;/寫(xiě)數(shù)據(jù)寄存器無(wú)地址void LCMWriteD(uchar LCMData)uchar LCMStatus; do LCMStatus=(LCMReadCOM&busy); while(LCMStatus!=0); LCMWriteData=LCMData;/初始化void LCMInit(void) Delayms(15); LCMWriteCOM=0x38; Delayms(5); LCMWriteCOM=0x38; Delayms(5); LCMWriteCOM=0x38; Delayms(5); LCMWriteC(0x38); LCMWriteC(0x08); LCMWriteC(0x01); LCMWriteC(0x06); L