设计一个60s倒计时c程序,从60到0逐次递减,谢谢!具体如下图,就是单片机...答:ORG 0000H LJMP MAIN ORG 0030H MAIN:MOV P2,#3FH MOV P0,#3FH MOV P1,#00H MOV DPTR,#TAB1 MOV R1,#60 ACALL DPLAY DPLAY:MOV R2,#100 MOV TMOD,#01H MOV TH0,#0D8H MOV TL0,#0F0H SETB TR0 LP0:JBC TF0,LP1 AJMP LP0 LP1:MOV TH0,#0D8H MOV TL0,#0F0H DJNZ R2,LP0 ...
单片机 60秒倒计时答:SETB P2.7 DJNZ R3, LOOP1 RET CHANG:MOVC A, @A+DPTR MOV P0, A RET DLY10MS:MOV R6, #256 D1:MOV R7, #256 NOP NOP NOP NOP DJNZ R7,DJNZ R6, D1 RET TABLE:DB 28H,7EH,0A4H,64H,72H,61H,21H,7CH,20H,60H END ...