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MCF51jm32 problem

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MCF51jm32 problem

‎09-27-2010 06:18 PM
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must
Contributor I

Hello ,

  I'm using for the current project a MCF51JM32 processor, I made the pcb  and when I apply the power supply to the board I observed that the reset pin from the processor it goes up and down it isn't stable I check every signal that arrive in the processor pin it it look OK and sincerely I really don't understand way it is going up and down  this pin. If u have any idea/ suggestion for my problem it will be great. .:robotsad:  tks. 

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‎10-04-2010 07:25 AM
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Bloodhound
Contributor I

I have seen this myself on a protoype PCB I was working on. I never did find the answer, however I did swap the processor for another and it worked fine. I guess something went wrong when it was put on the PCB (it was hand soldered).

I know that doesn't really help much but if you have a few proto PCB's and a spare CPU give it a shot.

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