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problem with ADC port on 16F876

 
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Paolo
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problem with ADC port on 16F876
PostPosted: Tue Jan 03, 2006 12:58 pm     Reply with quote

Hallo ALL there!!

I Have a problem with the 16F876 pic.
When I read the AN0 analog input which is driven by a 1K potentiometer I can only see a value from 0 to 255 (the variable is of type int). The value I see goes from 0 to 255 3 times when I turn the potentiometer till the end. I use CCS C ver 3.26 and I use the read_adc function and it seems return only the LSB of the 10 bit value. Maybe I must use another function?

I have this device

#device *=16 ADC=10 ICD=TRUE
or
#device *=16 ADC=16 ICD=TRUE

Anyone can help me???

THANK YOU VERY MUCH

Paolo
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Jan 03, 2006 1:04 pm     Reply with quote

What about this thread, where he said to use "%LX" to display it ?
http://www.ccsinfo.com/forum/viewtopic.php?t=25563
Paolo
Guest







I have found the solution
PostPosted: Tue Jan 03, 2006 1:08 pm     Reply with quote

I was using an int variable but I must use an int16 type!

THANKS TO ALL
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