【正文】 CLR T_RST NOP CLR T_CLK NOP SETB T_RST NOP MOV B,8EH LCALL INPUTBYTE MOV B,00H LCALL INPUTBYTE SETB T_CLK NOP CLR T_RST MOV R0,SECOND MOV R1,80H MOV R7,7 32 SETLOOP: CLR T_RST NOP CLR T_CLK NOP SETB T_RST NOP MOV B,R1 LCALL INPUTBYTE MOV A,R0 MOV B,A LCALL INPUTBYTE INC R0 INC R1 INC R1 SETB T_CLK NOP CLR T_RST NOP DJNZ R7,SETLOOP CLR T_RST NOP CLR T_CLK 33 NOP SETB T_RST NOP MOV B,8EH LCALL INPUTBYTE MOV B,80H LCALL INPUTBYTE SETB T_CLK nop CLR T_RST nop RET GET1302: MOV R0,SECOND MOV R1,81H MOV R7,7 GETLOOP: CLR T_RST NOP CLR T_CLK NOP SETB T_RST 34 NOP MOV B,R1 LCALL INPUTBYTE LCALL OUTPUTBYTE MOV R0,A INC R0 INC R1 INC R1 SETB T_CLK NOP CLR T_RST NOP DJNZ R7,GETLOOP RET INPUTBYTE: MOV R4,8 INPUTLOOP: MOV A,B RRC A MOV B,A MOV T_IO,C SETB T_CLK 35 NOP NOP NOP CLR T_CLK DJNZ R4,INPUTLOOP RET OUTPUTBYTE: CLR A CLR C MOV R4,8 OUTPUTLOOP: NOP NOP MOV C,T_IO RRC A SETB T_CLK NOP NOP NOP CLR T_CLK DJNZ R4,OUTPUTLOOP RET 36 IN0: SETB RETI IN1: SETB RETI TAB: DB 0FCH。7 DB 0FEH。5 25 DB 0BEH。3 DB 066H。1 DB 0DAH。 18 4 軟件程序設(shè)計 1)主程序 19 2）有故障時對之前故障的判別 3）無故障時對之前故障的判別 20 1）數(shù)碼管顯示 SECOND EQU 10H MINUTE EQU 11H HOUR EQU 12H DAY EQU 13H MONTH EQU 14H WEEK EQU 15H YEARL EQU 16H ORG 0000H Ajmp START ORG 0003H ORG 0010H ORG 0030H START: MOV SECOND,00H MOV YEARL,14H MOV MONTH,5H MOV DAY,21H MOV HOUR,17H MOV MINUTE,58H MOV 30H,00H 21 MAIN: LCALL display LJMP $ DISPLAY: MOV SCON,0 MOV A,11H ANL A,07FH MOV B,16 DIV AB MOV 17H,B MOV B,10 MUL AB ADD A,17H MOV B,10 DIV AB MOV 17H,A MOV A,B MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ CLR TI 22 MOV A,17H MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ CLR TI MOV A,12H ANL A,07FH MOV B,16 DIV AB MOV 17H,B MOV B,10 MUL AB ADD A,17H MOV B,10 DIV AB MOV 17H,A MOV A,B MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ 23 CLR TI MOV A,17H MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ CLR TI MOV A,30H MOV B,10 DIV AB MOV 17H,A MOV A,B MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ CLR TI MOV A,17H MOV DPTR,TAB MOVC A,A+DPTR MOV SBUF,A JNB TI,$ 24 CLR TI LCALL DIS_DELAY RET DIS_DELAY: PUSH PSW MOV R3,10 D1: MOV R6,248 D2: MOV R5,200 DJNZ R5,