MOV 20H,#00H ;20H單元置初值，電機正轉位置指針 MOV 21H,#00H ;21H單元置初值，電機反轉位置指針 MOV P1,#0C0H ;P1口置初值，防止電機上電短路 MOV TMOD,#60H ;T1計數(shù)器置初值,開中斷 MOV TL1,#0FFH MOV TH1,#0FFH SETB ET1 SETB EA SETB TR1 SJMP $ ;***********計數(shù)器1中斷程序************ IT1P: JB P3.7,FAN ;電機正、反轉指針 ;*************電機正轉***************** JB 00H,LOOP0 JB 01H,LOOP1 JB 02H,LOOP2 JB 03H,LOOP3 JB 04H,LOOP4 JB 05H,LOOP5 JB 06H,LOOP6 JB 07H,LOOP7 LOOP0: MOV P1,#0D0H MOV 20H,#02H MOV 21H,#40H AJMP QUIT LOOP1: MOV P1,#090H MOV 20H,#04H MOV 21H,#20H AJMP QUIT LOOP2: MOV P1,#0B0H MOV 20H,#08H MOV 21H,#10H AJMP QUIT LOOP3: MOV P1,#030H MOV 20H,#10H MOV 21H,#08H AJMP QUIT LOOP4: MOV P1,#070H MOV 20H,#20H MOV 21H,#04H AJMP QUIT LOOP5: MOV P1,#060H MOV 20H,#40H MOV 21H,#02H AJMP QUIT LOOP6: MOV P1,#0E0H MOV 20H,#80H MOV 21H,#01H AJMP QUIT LOOP7: MOV P1,#0C0H MOV ; 20H,#01H MOV 21H,#80H AJMP QUIT ;***************電機反轉***************** FAN: JB 08H,LOOQ0 JB 09H,LOOQ1 JB 0AH,LOOQ2 JB 0BH,LOOQ3 JB 0CH,LOOQ4 JB 0DH,LOOQ5 JB 0EH,LOOQ6 JB 0FH,LOOQ7 LOOQ0: MOV P1,#0A0H MOV 21H,#02H MOV 20H,#4

這個是暖水閥的，屬于控制后排的暖風的控制的暖水閥。右前車輪的后廚內襯里面的。請采納