設(shè)計任務(wù)書：基于mcs-51單片機的交通信號燈設(shè)計(存儲版)
【正文】 7R28+5VGNDY1C120PFC220PFC322uFS8+5VGNDGNDQ1Q2Q3Q49013D7abfcgdeDPY1234567abcdefg8comdpDS2abfcgdeDPY1234567abcdefg8comdpDS1abfcgdeDPY1234567abcdefg8comdpDS3abfcgdeDPY1234567abcdefg8comdpDS4第 18 頁 附錄 B 程序清單 ORG 0000H LJMP MAIN ORG 0003H LJMP TIME1 ORG 000BH LJMP TIME2 ORG 0013H LJMP TSH ORG 0030H MAIN:MOV SP,40H MOV P2,00H MOV P1,0FFH MOV 20H,08H MOV 21H,02H MOV 22H,00H MOV 23H,12H MOV 24H,02H MOV 25H,00H CLR C MOV A,20H SUBB A,24H MOV 25H,A CLR C MOV A,23H SUBB A,21H MOV 22H, MOV 26H,00H MOV 27H,00H MOV 28H,00H MOV 29H,00H MOV 2AH,00H MOV 2BH,00H MOV 2CH,00H MOV 2DH,00H MOV 2EH,00H MOV 30H,00H MOV 31H,00H MOV 32H,00H MOV 33H,00H MOV TCON,00H MOV IE,87H MOV TMOD,01H MOV TH0,3CH MOV TL0,0B0H MOV R7,20 SETB TR0 HHF0:MOV 26H,20H 第 19 頁 MOV 2BH,25H MOV P1,9EH HHF1:ACALL DISP1 MOV A,2BH CJNE A,0,HHF1 MOV 2AH,24H MOV P1,0AEH HHF2:ACALL DISP2 MOV A,2AH CJNE A,0,HHF2 MOV 28H,22H MOV 29H,23H MOV P1,0B3H HHF3:ACALL DISP3 MOV A,28H CJNE A,0,HHF3 MOV 27H,21H MOV P1,0B5H HHF4:ACALL DISP4 MOV A,27H CJNE A,0,HHF4 LJMP HHF0 DISP1:MOV A,2BH MOV B,10 DIV AB MOV 30H,B MOV 31H,A MOV A,26H MOV B,10 DIV AB MOV 32H,B MOV 33H,A ACALL DISP RET DISP2:MOV A,2AH MOV B,10 DIV AB MOV 30H,B MOV 31H,A MOV A,26H MOV B,10 DIV AB MOV 32H,B MOV 33H,A ACALL DISP RET DISP3:MOV A,29H MOV B,10 DIV AB MOV 30H,B MOV 31H,A MOV A,28H MOV B,10 DIV AB MOV 32H,B 第 20 頁 MOV 33H,A ACALL DISP RET DISP4:MOV A,29H MOV B,10 DIV AB MOV 30H,B MOV 31H,A MOV A,27H MOV B,10 DIV AB MOV 32H,B MOV 33H,A ACALL DISP RET DISP5:MOV 2BH,21H MOV 26H,20H ACALL DISP1 RET DISP6:MOV 2AH,24H MOV 26H,23H ACALL DISP2 RET DISP:MOV R2,4 MOV R0,30H MOV R3,08H HHF5:MOV A,R3 MOV P2,A MOV DPTR,TABLE MOV A,R0 MOVC A,A+DPTR MOV P0,A ACALL DELAY MOV A,R3 RR A MOV R3,A INC R0 DJNZ R2,HHF5 RET TABLE:DB 3FH,06H,5BH,4FH,66H DB 6DH,7DH,07H,7FH,6FH DELAY:MOV R4,2FH HHF32:MOV R5,0AH HHF6:DJNZ R5,HHF6 DJNZ R4,HHF32 RET TIME1:PUSH ACC PUSH PSW INC 2DH INC 2EH HHF33:JB ,HHF15 第 21 頁 HHF16:JNB ,HHF16 INC 2DH HHF15:JB ,HHF17 HHF18:JNB ,HHF18 INC 2EH HHF17:MOV A,2DH CJNE A,1,HHF19 HHF23:ACALL DISP5 JB ,HHF20 HHF21:JNB ,HHF21 MOV A,2EH CJNE A,1,HHF22 INC 20H SJMP HHF23 HHF22:MOV 2EH,00H INC 21H SJMP HHF23 HHF20:JB ,HHF24 HHF25:JNB ,HHF25 MOV A,2EH CJNE A,1,HHF26 DEC 20H SJMP HHF23 HHF26:MOV 2EH,00H DEC 21H SJMP HHF23 HHF19:MOV 2DH,00H ACALL DISP6 JB ,HHF27 HHF28:JNB ,HHF28 MOV A,2EH CJNE A,1,HHF29 INC 23H SJMP HHF19 HHF29:MOV 2EH,00H INC 24H SJMP HHF19 HHF27:JB
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鄂ICP備17016276號-1