 Posted: Tue May 09, 2006 2:10 am Post subject: |
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| Thanks for the tips. Yesterday I tried it and works. Now I add pull up resistor for other ports. | |
| Posted: Fri May 05, 2006 4:39 am Post subject: re: motor stepper |
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| In my opinion these port doesn't have pull up resistor, you may use this port if you put resistor up ( 10k) to Vcc, and don't forget to add diode betwen emitor and Vcc.
I hope this answer can help you. |
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| Posted: Fri May 05, 2006 12:47 am Post subject: Can't drive stepper motor on P0 AT89S51 |
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| Ive just try the tutorial on http://mytutorialcafe.com/Microcontroller%20Application%20Motor%20Stepper.htm
I try to drive the motor using P0, but never work. When I attach led tester on P0 it works fine (the led rotate like the source code) Then I try to change it to P1 and works fine. Anyone know why? |
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