AVR-Chat

On 29 Jul 2004 at 10:48, Alexandre Guimaraes wrote:

>     Could you post the schematic and program snippet that you used ? When I
> tried to use the ADC it seemed to be very bad. I probably made something
> quite wrong but did not have the time and incentive ($$) to find out what it
> was...

	No electronic voodoo here, just two 100k resistors from the ADC 
channel input pin, one to GND and the other to VREF pin. The audio signal 
goes through a 200nF capacitor. The ADC conversion is started by a timer 
interrupt doing the sample rate of my 1200bps AFSK demodulator (DSP).


 
> > You can go up to 1MHz if you only need 8 bit precision.
> 
>     That makes it even more interesting.... Have you used it at that speed
> and got real 8 bit's precision ???

	Yes, not a problem. As stated in the datasheet.

	Mark Jordan