AVR-Chat

Oh boy ... I feel dumb :(  I've spent hours on this, and as it turns 
out, I was writing the wrong program to the chip.  Well, I'm a 
little bummed about the time I wasted, but then again at least the 
chip is ok.

thanks
dan
--- In AVR-Chat@yahoogroups.com, "Lasse Madsen" <lasse.madsen@e...> 
wrote:
> Sounds as if you have wrecked the port..
>  
> Or . Have you connected the AVCC pin to the SAME voltage net as 
VCC ?
>  
> Regards
> Lasse Madsen
>  
>   _____  
> 
> From: dv7839 [mailto:danvernon@e...] 
> Sent: 15. januar 2005 18:43
> To: AVR-Chat@yahoogroups.com
> Subject: [AVR-Chat] Question about PORTA and PORTC
>  
> 
> I'm very new to this, so I may not have things setup right but ...
> 
> I have a STK500 with a AT90S8515.  I would like to use PORTA for 
> digital I/O.  I setup DDRA to 0xff (all output) and wrote 0xf0 to 
> PORTA.  I got out my logic probe, and expected for half of the 
pins 
> to be high, and the other half to be low.  What I found was that 
> they behaved as if they were not connected.  I tested some known 
> values, and so I know the logic probe is working.  I moved the 
whole 
> thing to PORTC, and had the exact same problem.  Any 
suggestions???  
> PORTB is already in use, and works.  I tried removing that portion 
> of the circuit/program to isolate the problem, but it didn't 
help.  
> It appears to be only with PORTA and PORTC.  I'm guessing there is 
> something else to setup in order to "enable" PORT A/C, but I just 
> can't figure it out.  Any help would be GREATLY appreciated.
> 
> Thanks,
> dan
> 
> 
> 
> 
> 
>   _____  
> 
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