Re: [avr-gcc-list] ADC sample code in C

[James Washer]

mega8 or so.. internal... yes, I can imagine polling external would be a pain.

 - jim

On Wed, 23 Nov 2005 06:45:07 +1030
Matthew Smith <address@hidden> wrote:

> James Washer wrote:
> > I'm looking for a small piece of sample C source code for playing with the 
> > ADC to get me started. Anyone have anything they'd like to share?
> 
> Which device?  Internal or external ADC?  I'm pretty sure that I saw an
> application note or similar at AVR Freaks for using an internal ADC.  If
> it's an external one, you'd be on your own and will need to read the ADC
> datasheet.
> 
> Last word on external ADCs, at least ones with a byte-wide interface -
> if it's got an interrupt out pin (end of conversion), connect it to an
> interrupt in on the AVR and handle it with an ISR; DON'T connect it to
> GPIO and try to poll it!  (Guess how I know this...)
> 
> Cheers
> 
> M
> 
> -- 
> Matthew Smith
> Kadina Business Consultancy, South Australia
> Work: <http://www.kbc.net.au> Personal: <http://www.mss.cx>
> 
> 
> 
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