AVR-Chat

Yes, this is what I found to be true in (my limited) testing.. This is the opposite of what I believed to be true ( and attempted to write ) when I posted my question early. 

On Tue, 27 Dec 2005 22:21:50 -0000
"Ingvar Esk" <ingvar.esk@swipnet.se> wrote:

> --- In AVR-Chat@yahoogroups.com, James Washer <washer@t...> wrote:
> >
> > I need to implement a bit-bang serial port. It's my understanding 
> the RS232 "idles" high, which would mean the logic level out of a 
> max232 would be low. The start bit would then be logic high to the 
> AVR.. Is this correct?
> 
> No, if I understand you correct. The word "high" is missleading.
> 
> Serial comm idles at a logical "true" or "1" level. On the RS232 side 
> this is represented with a -15 to -3V signal. On the TTL side of the 
> MAX chip it is represented by a 5V signal. The reverse, a logical 
> false or "0", is represented by a +3-+15V signal and a 0V signal 
> respectivily.
> 
> Ingvar
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