单片机课程设计—数字时钟(四川理工学院).doc

（注：最好的课程设计，包含数字时钟源程序、电路图、以及成品文件、使用方法等）单片机课程设计数字时钟1、数字时钟源程序：S_SETBITP1.0;数字钟秒控制位M_SETBITP1.1;分钟控制位H_SETBITP1.2;小时控制位SECONDEQU30HMINUTEEQU31HHOUREQU32HTCNTEQU34HORG00HSJMPSTARTORG0BHLJMPINT_T0START:MOVDPTR,#TABLEMOVHOUR,#0;初始化MOVMINUTE,#0MOVSECOND,#0MOVTCNT,#0MOVTMOD,#01HMOVTH0,#3CH;fosc=12MHz,定时50毫秒MOVTL0,#0B0HMOVIE,#82HSETBTR0A1:LCALLDISPLAYJNBS_SET,S1JNBM_SET,S2JNBH_SET,S3LJMPA1S1:LCALLDELAY;去抖动JBS_SET,A1INCSECOND;秒值加1MOVA,SECONDCJNEA,#60,J0 ;判断是否加到60秒MOVSECOND,#0LJMPK1S2:LCALLDELAYJBM_SET,A1K1:INCMINUTE;分钟值加1MOVA,MINUTECJNEA,#60,J1 ;判断是否加到60分MOVMINUTE,#0LJMPK2S3:LCALLDELAYJBH_SET,A1K2:INCHOUR;小时值加1MOVA,HOURCJNEA,#24,J2 ;判断是否加到24小时MOVHOUR,#0MOVMINUTE,#0MOVSECOND,#0LJMPA1J0:JBS_SET,A1LCALLDISPLAYSJMPJ0J1:JBM_SET,A1LCALLDISPLAYSJMPJ1J2:JBH_SET,A1LCALLDISPLAYSJMPJ2INT_T0:MOVTH0,#3CHMOVTL0,#0B0HINCTCNTMOVA,TCNTCJNEA,#20,RETUNE;计时1秒INCSECONDMOVTCNT,#0MOVA,SECONDCJNEA,#60,RETUNEINCMINUTEMOVSECOND,#0MOVA,MINUTECJNEA,#60,RETUNEINCHOURMOVMINUTE,#0MOVA,HOURCJNEA,#24,RETUNEMOVHOUR,#0MOVMINUTE,#0MOVSECOND,#0MOVTCNT,#0RETUNE:RETIDISPLAY:MOVA,SECOND;显示秒MOVB,#10DIVABCLRP3.6MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.6MOVA,BCLRP3.7MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.7CLRP3.5MOVP0,#40H;显示分隔符LCALLDELAYSETBP3.5MOVA,MINUTE;显示分钟MOVB,#10DIVABCLRP3.3MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.3MOVA,BCLRP3.4MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.4CLRP3.2MOVP0,#40H;显示分隔符LCALLDELAYSETBP3.2 MOVA,HOUR;显示小时MOVB,#10DIVABCLRP3.0MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.0MOVA,BCLRP3.1MOVCA,A+DPTRMOVP0,ALCALLDELAYSETBP3.1RETTABLE: DB 3FH,06H,5BH,4FH,66HDB6DH,7DH,07H,7FH,6FHDELAY:MOVR