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步進(jìn)電機(jī)在燈光上應(yīng)用

已有 905 次閱讀2015-7-20 10:15 | 步進(jìn)電機(jī)

   ORG    0000H
        LJMP   L00FAH
        RETI
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        LJMP   L02EEH
        NOP
        NOP
        NOP
        NOP
        NOP
        RETI
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        NOP
        RETI
L001CH:
        LJMP   L00C8H
        NOP
        NOP
        NOP
        NOP
        PUSH   PSW
        PUSH   01H
        PUSH   00H
        PUSH   ACC
        JB     TI, L001CH
        JNB    RB8, L0054H
        JNB    1DH, L0071H
        JNB    1CH, L007DH
        MOV    A, 40H
        CLR    C
        SUBB   A, 70H
        MOV    R0, A
        MOV    A, 42H
        SUBB   A, 71H
        JC     L008BH
        JNZ    L008BH
        MOV    A, R0
        SUBB   A, #09H
        JZ     L004CH
        JNC    L008BH
L004CH:
        MOV    A, R0
        ADD    A, #80H
        MOV    R0, A
        MOV    @R0, SBUF
        SJMP   L008BH
L0054H:
        MOV    A, SBUF
        JNZ    L0066H
        MOV    70H, 1EH
        MOV    71H, 1FH
L005EH:
        SETB   1DH
        CLR    1CH
        SETB   1BH
        SJMP   L009EH
L0066H:
        CJNE   A, #0A5H, L0071H
        MOV    70H, #00H
        MOV    71H, #00H
        SJMP   L005EH
L0071H:
        CLR    1DH
        CLR    1CH
        MOV    42H, #00H
        MOV    40H, #00H
        SJMP   L0093H
L007DH:
        MOV    A, SBUF
        JNZ    L0071H
        SETB   1CH
        MOV    42H, #00H
        MOV    40H, #00H
        SJMP   L0093H
L008BH:
        INC    40H
        MOV    A, 40H
        JNZ    L0093H
        INC    42H
L0093H:
        POP    ACC
        POP    00H
        POP    01H
        POP    PSW
        CLR    RI
        RETI
L009EH:
        MOV    R0, #80H
        MOV    R1, #0C0H
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        SETB   15H
        SJMP   L0093H
L00C8H:
        CLR    TI
        CLR    RI
        JB     TB8, L0093H
        MOV    R0, #0A0H
        MOV    R1, #0C0H
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0
        MOV    @R1, A
        INC    R0
        INC    R1
        MOV    A, @R0