电子钟专周报告

04导老成时2012-5-一．8051LEDLCD液晶模块，进行时间显示，格式为“时：分：秒”；整点二．LCD液晶模块，进行时间显示，格式为“针对要实现的功能，采用AT89S51单片机进行设计，AT89S51单片机是一款低功耗，序存储器，器件采用高密度、非易失性存储技术制造，兼容标准MCS-51指令系统及80C51开始/时钟/1919开始时钟本电路的输出信号为7

P开始时钟本实验用汇编程序完成开始、继LED1秒改变一次明暗，此4142434556;12M晶振20100114调试完 0315修 20110303注STRTEQUP2.6STPEQUP2.7CLRREQUP3.0SECEQUP3.5MINEQUP3.6HOUREQUP3.7ORG00HSJMPMAINORG0BHAJMPT0INT0ORG30HMAIN:MOV MOVR4,#20MOVMOVTH0,#03CH ;#9EH12M晶振时定时初值取#3CB0HMOVTL0,#0B0H SETBET0SETB;MOVkS:LCALLDISP秒调整按键JBSEC,KMLCALLDISPJNBSEC,$-3AJMPSINCkM:JBMIN,KH分调整按键LCALLDISPJNBMIN,$-3AJMPKH:JBHOUR,K1时调整按键LCALLDISPJNBHOUR,$-3AJMPHINCSINC:INC26H秒调整MOVA,26HCJNEA,#60,SINC0MOV26H,#0SINC0:AJMPKSMINC:INC27H分调整MOVA,27HCJNEA,#60,MINC0MOV27H,#0MINC0:AJMPKMHINC:INC28H时调整MOVA,28HCJNEA,#24,HINC0MOV28H,#0HINC0:AJMPKHk1:LCALLDISP开始键JBSTRT,K2LCALLDISPJNBSTRT,$-3AJMPk2:JBSTP,K3暂停键LCALLDISPJNBSTP,STOPK3:JBCLRR,KSLCALLDISPJNBCLRR,CLEAR;AJMPSTART:SETBTR0 AJMPK1STOP:CLRTR0暂停AJMPK2CLEAR:CLR TR0清零MOVA,#0MOV26H,A MOV28H,AAJMPKSMOVA,26HMOVB,#10DIVABMOV ;余数（秒个位数MOV21H,A MOVA,27HMOVB,#10DIVABMOV ;余数（分个位数MOV23H,A MOVA,28HMOVB,#10DIVABMOV ;余数（时个位数MOV25H,A MOVA,20H ACALLSEG7MOVP0,ACLRP2.0ACALLDLYSETBP2.0MOV ;ACALLSEG7MOVP0,ACLRP2.1ACALLDLYSETBP2.1MOV ;ACALLSEG7MOVP0,ASETBP0.7CLRP2.2ACALLDLYSETBP2.2MOV ;ACALLSEG7MOVP0,ACLRP2.3ACALLDLYSETBP2.3MOV ;ACALLSEG7MOVP0,ASETBP0.7CLRP2.4ACALLDLYSETBP2.4MOV ;ACALLSEG7MOVP0,ACLRP2.5ACALLDLYSETBP2.5T0INT0:MOVTH0,#03CH;#9EH定时中断子程序。重装定时常数MOVTL0,#0B0H;#58HDJNZR4,T0INTR;50msX20=1S20MOVINC26H MOVA,26HCJNE ;60SMOV26H,#0 INC27H MOVCJNEA,#60,T0INTRMOV27H,#0INC28HMOVA,28HCJNEA,#24,T0INTRMOV28H,#0T0INTR:RETI MOVR3,#30D0:ACALLDLYDJNZR3,D0DLY:MOVR7,#2D1:MOVR6,#40DJNZR6,$DJNZR7,D1SEG7:INCAMOVCA,@A+PC STRTEQUP2.6STPEQUP2.7CLRREQUP3.0SECEQUP3.5MINEQUP3.6HOUREQUP3.7ORG00HAJMPMAINORG0BHAJMPT0INTORG1BHAJMPT1INTORG30H MOVR4,#20MOV 定时初值取#3CB0H,还可细调如MOVTL0,#0B0H;#58HMOVTH1,#0FEHMOVTL1,#0CHSETBEASETBET0SETBACALLDISPACALLALARMJBSEC,KM ACALLDISPJNBSEC,$-2AJMPSINCJBMIN,KH ACALLDISPJNBMIN,$-2AJMPJB ;ACALLDISPJNBHOUR,$-2AJMPHINCJB7FH,SINC_AMOVA,26HMOV26H,#0AJMPSINC0INC36H;MOVMOV36H,#0SINC0:AJMPKSJB7FH,MINC_AINC27HMOVCJNEA,#60,MINC0MOV27H,#0INC37H;MOVCJNEA,#60,MINC0MOV37H,#0AJMPJB7FH,HINC_AMOVA,28HCJNEA,#24,HINC0MOV28H,#0INC38H;MOVCJNEA,#24,HINC0MOV38H,#0AJMPJBSTRT,K2ACALLDISPJNBSTRT,$-2AJMPJBSTP,K3暂停键ACALLDISPJNBSTP,$-2AJMPCL_ALJBCLRR,KS0ACALLDISPJNBCLRR,CLEAR;AJMPKSCPL ;开始/SETB7DH ;7DH为开始键按下标志，此作为允许闹铃标志AJMPK1CPL7FH ;7FH作时钟和闹铃标志位AJMPK2 MOVA,#0MOV26H,AMOV27H,AMOV28H,AMOV36H,A MOV38H,AAJMPJBMOV29H,26H MOV2AH,27HAJMPDISP1MOV29H,36HMOV2BH,38HMOVB,#10DIVABMOV ;余数（秒个位数MOV21H,A MOVA,2AHMOVB,#10DIVABMOV ;余数（分个位数MOV23H,A MOVA,2BHMOVB,#10DIVABMOV ;余数（时个位数MOV25H,A MOVA,20H ACALLSEG7MOVP0,ACLRP2.0ACALLDLYSETBP2.0MOV ;ACALLSEG7MOVP0,ACLRP2.1ACALLDLYSETBP2.1MOV ;ACALLSEG7MOVP0,ASETBP0.7CLRP2.2ACALLDLYSETBMOVA,23H ACALLSEG7MOVP0,ACLRP2.3SETBP2.3MOV ;ACALLSEG7MOVP0,ASETBP0.7CLRP2.4ACALLDLYSETBP2.4MOV ;ACALLSEG7MOVP0,ACLRP2.5ACALLDLYSETBP2.5JNB ;MOVA,28H ;开机时，时分秒都为0，跳出JZAL0MAJMPALARM1JZAL0SAJMPALARM1JZRTMOV ;CJNEA,38H,AL MOVA,27H CJNEA,37H,ALMOVA,26H CJNEA,36H,ALAJMPALARM2 ;MOVJZRT ;0000MOVA,27HJNZRT ;00，跳出MOVA,26HJNZAJMPALARM3;秒不为00，跳出。为00，整点提醒 ;闹铃3SSETBTR1AJMPRT ;整点提醒SETBTR1MOVTH0,#03CH;定时中断子程序。重装定时常数MOVTL0,#0B0HDJNZR4,T0INTR ;50msX20=1S20次，跳出中断子程序MOVR4,#20INC ;1S，秒存储单元内数INCR0 MOVA,26HCJNEA,#60,T0INTR ;未满60S，跳出中断。MOV26H,#0 ;满60S,秒单元清零INC27H MOVA,27H