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Re: [avr-gcc-list] ADC anomaly
From: |
Richard Urwin |
Subject: |
Re: [avr-gcc-list] ADC anomaly |
Date: |
Tue, 17 Feb 2004 17:45:34 +0000 |
User-agent: |
KMail/1.5.3 |
On Tuesday 17 Feb 2004 10:11 am, Mattias Svensson wrote:
> Douglas Dotson wrote:
> > All this is on a breadboard right now. When I
> > layout the PCB, all the normal precautions will
> > be in place to keep noise to a minimum.
>
> Never underestimate the noise capabilities of a breadboard... ;)
>
> A PCB with proper AGND plane separated from DGND is the only possible
> way. And you should have the AGND plane go under the corner of the
> divice that has the ADC inputs.
> AGND and DGND should be linked in a star configuration, and only at
> one point. Preferably at the place you have the main power input to
> the PCB.
Yes, and with big cables going to the batteries.
--
Richard Urwin
- RE: [avr-gcc-list] ADC anomaly, (continued)
- RE: [avr-gcc-list] ADC anomaly, Loveny Design, 2004/02/15
- RE: [avr-gcc-list] ADC anomaly, Douglas Dotson, 2004/02/15
- Re: [avr-gcc-list] ADC anomaly, Richard Urwin, 2004/02/15
- Re: [avr-gcc-list] ADC anomaly, Douglas Dotson, 2004/02/15
- Re: [avr-gcc-list] ADC anomaly, Richard Urwin, 2004/02/15
- Re: [avr-gcc-list] ADC anomaly, Douglas Dotson, 2004/02/15
- Re: [avr-gcc-list] ADC anomaly, Richard Urwin, 2004/02/16
- Re: [avr-gcc-list] ADC anomaly, Douglas Dotson, 2004/02/16
- Re: [avr-gcc-list] ADC anomaly, Mattias Svensson, 2004/02/17
- Re: [avr-gcc-list] ADC anomaly, t.white, 2004/02/17
- Re: [avr-gcc-list] ADC anomaly,
Richard Urwin <=
- Re: [avr-gcc-list] ADC anomaly, Douglas Dotson, 2004/02/20
- RE: [avr-gcc-list] ADC anomaly, Loveny Design, 2004/02/15