基于51單片機的直流電機調(diào)速程序-預覽頁
【正文】 V R3,06FH MOV R4,0F9H MOV R5,0BFH MOV A,2H LCALL SHOW LJMP MAINLINE1 PWM3: MOV R2,0FDH MOV R3,0A7H MOV R4,0FAH MOV R5,087H MOV A,3H LCALL SHOW LJMP MAINLINE1 PWM4: MOV R2,0FCH MOV R3,0DFH MOV R4,0FBH MOV R5,4FH MOV A,4H LCALL SHOW LJMP MAINLINE1 PWM5: MOV R2,0FCH MOV R3,18H MOV R4,0FCH MOV R5,18H MOV A,5H LCALL SHOW LJMP MAINLINE1 PWM6: MOV R2,0FBH MOV R3,4FH MOV R4,0FCH MOV R5,0DFH MOV A,6H LCALL SHOW LJMP MAINLINE1 PWM7: MOV R2,0FAH MOV R3,087H MOV R4,0FDH MOV R5,0A7H MOV A,7H LCALL SHOW LJMP MAINLINE1 PWM8: MOV R2,0F9H MOV R3,0BFH MOV R4,0FEH MOV R5,6FH MOV A,8H LCALL SHOW LJMP MAINLINE1 PWM9: MOV R2,0F8H MOV R3,0F7H MOV R4,0FFH MOV R5,37H MOV A,9H LCALL SHOW LJMP MAINLINE1 PWM10: MOV R2,0f8H MOV R3,02FH MOV R4,0FFH MOV R5,0FFH MOV A,0AH LCALL SHOW LJMP MAINLINE1 MAINLINE1: RET show: ANL P1,00101111B。定時一秒鐘輸出速度值一次（定時 R6 自加一） 。這里是定時中斷程序， JB ,CTC2 CTC1: MOV TL0,R3 MOV TH0,R2 CPL RETI CTC2: MOV TL0,R5 MOV TH0,R4 CPL RETI END
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鄂ICP備17016276號-1