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18f4458 adc external voltage ref

 
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morebudwiser



Joined: 17 Oct 2005
Posts: 26

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18f4458 adc external voltage ref
PostPosted: Wed Jun 18, 2008 7:09 am     Reply with quote
hi i am trying to set up my pic 18f4458 to use external voltage reference

so do i need to connect vref- pin to gnd and vref+ pin to the output of my 4.096 precision reference and then set the adc up like this
Code:
setup_adc_ports(AN0_TO_AN4|VREFL_VREFH); 





many thanks Andrew
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Jun 18, 2008 9:21 am     Reply with quote
Don't start a new thread for each additional question on using the ADC
in the 18f4458. Add new questions to your existing thread.
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