need simple A/D converter

SebastiaNot · 2008-03-27T16:00:45+00:00

We want to use PIC 18F452 to convert a voltage from solar cellinto a digital value, to be read by a PC using parallel port.This cannot be changed.Can someone provide me a pointer to a sample code or a simple book orURL where to find the basic programming for Analog to Digitalconversion using 18F452 ?Our actual problem now (one of few ... or lots of them)is how to define the "range" of the input signal.I mean, how does the PIC knowif an input of 3 volts is "100 %" of the signal,( corresponding to "0xFF" digital output )or it is just "50 %" of the voltage range( corresponding to 0x80 digital output, more or less ... )?Thanks.

Mar 27, 2008 20 Replies

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Stef 18 years ago

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I think you missed the point of the demonstration. I'm sure Rocky will snip irrelevant stuff in 'normal' replies.

You are posting with 2 sig delimiters, please keep it to one. My newsreader will only recognize and auto-snip the last sig and I'm sure many others will do so as well.

Stef (remove caps, dashes and .invalid from e-mail address to reply by mail) "Congratulations. You're the first human to fail the turing test."

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need simple A/D converter

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