My board can't start

[Archangel]

Are you working on a breadboard or PCB ?
Breadboards, especially OLD ones often suffer from stray capacitance and poor connections. Darrel once told me he ONLY used brand new boards. I have disassembled several OLD breadboards to find a surprising amount of corrosion in the fingers.

[Bartchou]

Are you working on a breadboard or PCB ?
Breadboards, especially OLD ones often suffer from stray capacitance and poor connections. Darrel once told me he ONLY used brand new boards. I have disassembled several OLD breadboards to find a surprising amount of corrosion in the fingers.

Hello,Archangel
Yes ,I'm work at Nexpcb--PCB fabrication, PCB Assembly, PCB Turnkey Service.
For breadboard, this situation is common occurrence, especially wet environment.
It would be better if covered the Conformal coating on the new assembly board.

[Sabahan]

Are you working on a breadboard or PCB ?
Breadboards, especially OLD ones often suffer from stray capacitance and poor connections. Darrel once told me he ONLY used brand new boards. I have disassembled several OLD breadboards to find a surprising amount of corrosion in the fingers.

After I started this discussion,I made a pcb board,is the same results.


I didn't notice there is a FOSC in the PBP command,upon checking the reference manual,it didn't have much info on the command,only shows in a example program with no explanation on the FOSC command,may I know where you got your info on the command?

[Archangel]

I usually turn off FOSC ( which if memory serves ) is FAIL Safe Oscillator, but specifically I learned the HS_OSC trick from Mackracket who linked to a data sheet which stated that, I will look for that post and add link if I can find it.
You might check that crystal for integrity too.

EDIT: My Bad, I turn off FSCM (Fail safe clock monitor).

Question: What PIC are you using and how is your config statement written?