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question on MCLR

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mcnscott2

Joined: 25 Mar 2007
Posts: 19

question on MCLR
Posted: Mon Mar 26, 2007 9:50 pm

I'm working on this project below, I'm curious though if I need to include the command #fuse MCLR for this project or not. The project has a reset button that takes the normally low MCLR pin high to reset the PIC, or is it not necessary to include this fuse?

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Tue Mar 27, 2007 12:05 am

Reply with quote

Quote:

I'm curious though if I need to include the command #fuse MCLR for this project or not.

Look at the list of available fuse settings at the start of the
16F876A.H file.

Also look in the 16F876A data sheet, in the section called
"Special Features of the CPU". Look at the diagram of the
Configuration Word.

This will answer your question.

w2drz

Joined: 27 Dec 2006
Posts: 55
Location: Western New York - USA

Posted: Wed Mar 28, 2007 2:45 pm

Reply with quote

Quote:

In your hardware may wish to add a resistor of 330 ohm to the osc2 line,
this reduces crystal over drive.

tom

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