基于单片机的步进电机调速系统毕业设计

毕业论文

附录

附录1：源程序清单 QIAN EQU 40H HOU EQU 41H JIA EQU 42H JIAN EQU 43H TING EQU 44H ORG 000H LJMP MAIN ORG 003H

LJMP DUAN /// ORG 0030H

MAIN: ///MOV R0,#0FH 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,#40 MOV 22H,#30 MOV 23H,#20 MOV 24H,#10 MOV 25H,#5 MOV R1,#20H MOV IE,#10000001B CLR QIAN CLR HOU CLR JIA

外部中断0 初始化 36

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CLR JIAN CLR TING MOV A,@R1 MOV R2,A SETB IT0

LOOP1:JNB QIAN ,LOOP2 ////边沿触发形式

ACALL FRONT1 LOOP2:JNB HOU,LOOP1 ACALL BACK1 DUAN: MOV A,P0 CPL A

ANL A,#1FH /// CJNE A,#00H,CHA AJMP DUAN CHA: ACALL DELAY10MS MOV A,P0 CPL A ANL A,#1FH JZ DUAN ACALL ZHAO RETI ZHAO:MOV A,P0

JNB ACC.0,FRONT JNB ACC.1,BACK JNB ACC.2,FAST JNB ACC.3,SLOW JNB ACC.4,STOP FRONT:SETB QIAN RET BACK: SETB HOU RET FAST: SETB JIA RET SLOW: SETB JIAN RET STOP: SETB TING

去高三位，使按下去的一位为1 ///为零转移

//查找是哪一位，下面置1

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RET FRONT1:CLR QIAN CLR HOU CLR JIA CLR JIAN CLR TING INC R0 MOV A,@R1 MOV R2,A

/// R2用于延时不同的时间

ACALL DELAY CJNE R0,#17H,XIA MOV R0,#10H

XIA: JB QIAN,HUI //回主程序////////XIA子程序用于过度 JB HOU, HUI JB TING,HUI JNB JIA,XIA1 ACALL JIA1 XIA1: JNB JIAN,XIA2 ACALL JIAN1 JB TING ,HUI XIA2: AJMP FRONT1 HUI : RET RET XIA3: INC R1 RET

BACK1: CLR QIAN CLR HOU CLR JIA CLR JIAN CLR TING

CJNE R0,#0FH ,XIA8 MOV R0,#17H XIA8: DEC R0 MOV P2,@R0

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///前进子程序 R0用于给P2口送不同的值

MOV P2,@R0

///XIA子程序用于过度

//返回主程序

JIA1: CJNE R1,#25H,XIA3 /// 加速

//后退

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MOV A,@R1 MOV R2,A ACALL DELAY CJNE R0,#10H,XIA5 MOV R0,#17H XIA5: JB QIAN,HUI JB TING,HUI JB HOU ,HUI JNB JIA, XIA6

ACALL JIA1 XIA6: JNB JIAN,XIA7 ACALL JIAN1 XIA7: AJMP BACK1

JIAN1: CJNE R1,#20H,XIA4 RET XIA4: DEC R1 RET DELAY10MS: MOV R3,#20 D1: MOV R4,#250 DJNZ R4,$ DJNZ R3,D1 RET

DELAY: MOV R5,#50

// D2: MOV R6,#150 D3: DJNZ R6,$ DJNZ R5,D2 DJNZ R2,DELAY RET END

//减速

根据r2的状态调整 步进电机的每一步的时间39

毕业论文

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