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RC5 is high on power-up

 
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kender



Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley

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RC5 is high on power-up
PostPosted: Thu Dec 15, 2011 5:58 pm     Reply with quote
Folks,

When I was setting up the internal OpAmp in PIC16HV785, I’ve noticed that RC6 was high on power-up. There was no additional initialization to the simple project wizard generated initialization (I can post my code).

I found a workaround. input(PIN_C6) removes the logic high output and the OpAmp1 works as expected.

Code:
 input(PIN_C6);
setup_opamp1(TRUE);


I wonder why RC6 was high in the first place?

- Nick

16HV785
PCWH 4.081
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Ttelmah



Joined: 11 Mar 2010
Posts: 19563

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PostPosted: Fri Dec 16, 2011 3:49 am     Reply with quote
You need to show us what else you are configuring before this point. For some reason the output driver is being switched on (output_float(PIN_C6) would also solve the problem).
What compiler version?.

Best Wishes
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