做了一个四相五线步进电机的正反转程序，不小心源文件找不到了，只有hex文件，但是不知道按键和脉冲输出接在那个脚，试了好久都没成功，小弟用网上的hex反汇编形成了汇编文件，请高手帮忙看看电机和按键应该接在那些个脚上！！单片机是stc89052rc。感激不尽！！

;标签        指令        数据        程序大小:2213B BY:CINZY'LAB
        ORG 0000H
        LJMP        L0899
        ORG 0800H
L0800:        MOV        08H,#040H
        DB 08H,040H,020H,0b2H,011H,0e4H,0f9H,0e9H
        DB 0c3H,095H,08H,050H,0f5H,012H,08H,04eH
        DB 030H,0b4H,0efH,09H,080H,0f1H,020H,0b3H
        DB 011H,0e4H,0f9H,0e9H,0c3H,095H,08H,050H
        DB 0e1H,012H,08H,064H,030H,0b4H,0dbH,09H
        DB 080H,0f1H,075H,0a0H,0f0H,080H,0d3H,0ebH
        DB 093H,0f5H,0a0H,07fH,0aH,07eH,00H,0efH
        DB 01fH,0aaH,06H,070H,01H,01eH,04aH,060H
        DB 0bH,0e4H,0fdH,0edH,0c3H,094H,073H,050H
        DB 0eeH,0dH,080H,0f7H,022H,0e4H,0fcH,030H
        DB 0b4H,010H,0e4H,0fbH,090H,08H,07aH,012H
        DB 08H,030H,0bH,0bbH,08H,0f6H,0cH,0bcH
        DB 08H,0edH,022H,0e4H,0fcH,030H,0b4H,010H
        DB 0e4H,0fbH,090H,08H,082H,012H,08H,030H
        DB 0bH,0bbH,08H,0f6H,0cH,0bcH,08H,0edH
        DB 022H,08H,0cH,04H,06H,02H,03H,01H
        DB 09H,09H,01H,03H,02H,06H,04H,0cH
        DB 08H,0e4H,0ffH,0feH,0fH,0bfH,00H,01H
        DB 0eH,0efH,064H,039H,04eH,070H,0f5H,022H
L0899:        MOV        R0,#07fH
        CLR        A
L089c:        MOV        @R0,A
        DJNZ        R0,L089c
        MOV        SP,#08H
        LJMP        L0800
        END