bujindianji.rar_电路_软件控制电机

ZHENG EQU 30H FAN EQU 31H NO EQU 32H AS EQU 33H SS EQU 34H ORG 00H AJMP MAIN ORG 03H AJMP SUB_INT0 ORG 30H MAIN: MOV 10H,#01H MOV 11H,#03H MOV 12H,#02H MOV 13H,#06H MOV 14H,#04H MOV 15H,#0CH MOV 16H,#08H MOV 17H,#09H MOV 20H,#50 MOV 21H,#25 MOV 22H,#10 MOV 23H,#05 CLR ZHENG CLR FAN CLR NO CLR AS CLR SS MOV R1,#20H MOV A,@R1 MOV R5,A MOV IE,#10000001B SETB IT0 MOV R0,#0FH LOOP: JNB ZHENG,LP CALL GO LP: JNB FAN,LOOP CALL BACK AJMP LOOP ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(中断) SUB_INT0: SCAN: MOV A,P0 CPL A ANL A,#00011111B JNZ SCAN1 AJMP SCAN SCAN1: CALL DELAY1 MOV A,P0 CPL A ANL A,#00011111B JZ SCAN CALL RDKEY RETI RDKEY: MOV A,P0 JNB ACC.0,STOP JNB ACC.2,REV JNB ACC.1,FOR JNB ACC.3,ADDSPEED JNB ACC.4,SUBSPEED STOP: SETB NO RET FOR: SETB ZHENG RET REV: SETB FAN RET ADDSPEED:SETB AS RET SUBSPEED:SETB SS RET ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(正转) GO: CLR ZHENG CLR FAN CLR NO CLR AS CLR SS INC R0 MOV A,R0 CJNE A,#18H,GO2 MOV R0,#10H GO2: MOV P2,@R0 MOV A,@R1 MOV R5,A CALL DELAY JB NO,RETURN JB ZHENG,RETURN JB FAN,RETURN JNB SS,GO3 CALL JIAN GO3: JNB AS,GO4 CALL JIA GO4: AJMP GO ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(反转) BACK: CLR ZHENG CLR FAN CLR NO CLR AS CLR SS DEC R0 MOV A,R0 CJNE A,#0EH,TT MOV R0,#17H SJMP BACK2 TT: CJNE A,#0FH,BACK2 MOV R0,#17H BACK2: MOV P2,@R0 MOV A,@R1 MOV R5,A CALL DELAY JB NO,RETURN JB ZHENG,RETURN JB FAN,RETURN JNB AS,BACK3 CALL JIA BACK3: JNB SS,BACK4 CALL JIAN BACK4: AJMP BACK ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(加速) JIA: MOV A,R1 CJNE A,#23H,JIA1 RET JIA1: INC R1 RET ;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(减速) JIAN: MOV A,R1 CJNE A,#20H,JIAN1 RET JIAN1: DEC R1 RET RETURN:RET DELAY: D1: MOV R6,#50 D2: MOV R7,#150 D3: DJNZ R7,$ DJNZ R6,D2 DJNZ R5,D1 RET DELAY1: MOV R6,#60 D4: MOV R7,#100 DJNZ R7,$ DJNZ R6,D4 RET END