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Problem with firmware not working on PIC18F67J11

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neoaspilet11

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Hello Guys,

I have a fw that communicates via a serail port using this chip. Its working fine using proteus simulation using the PIC18F6720 model. But on the actual board it wont work not even lighting a single led on an IO port.

I further checked on the rails and it seems the voltage rails are OK and the internal 2.5V regulator is working fine.

I blasted the FW and I can read it back via ICD2.

However nothing is happening on the board. it wont light up a single led nopr communicate with the port.


Any idea waht went wrong?

Thanks,
neo
 

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