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Read Output Pin Setting

 
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jgschmidt



Joined: 03 Dec 2008
Posts: 184
Location: Gresham, OR USA

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Read Output Pin Setting
PostPosted: Thu Jul 24, 2014 4:24 pm     Reply with quote

Processor: 18F67K22
Compiler: 4.135

I'm using digital I/O to control a bunch of relays and I need to send out some diagnostics via serial port to show which output pins are set high.

How can I read the settings of my output pins, without affecting anything? I want to be sure the compiler doesn't change my outputs to an input when it does the read. It seems like such a simple thing but a forum and manual search doesn't doesn't yield the results I'm looking for. Perhaps I'm just tired...

Thanks for any help.
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Jürgen
www.jgscraft.com
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Jul 24, 2014 4:32 pm     Reply with quote

Quote:
How can I read the settings of my output pins, without affecting anything?

Check your version and see if it has the input_state() function, because
that's what you need.
jgschmidt



Joined: 03 Dec 2008
Posts: 184
Location: Gresham, OR USA

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PostPosted: Thu Jul 24, 2014 5:37 pm     Reply with quote

That's what I was looking for - works great!
Thanks for this and all the other help you provide.
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Jürgen
www.jgscraft.com
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