AVR-Chat

That may be it.  I am sourcing the VCC and ground from the NX1000 board and 
not the SDK500 that holds the MCU.  I plan to check this tonight.  Thanks 
for the heads up.


----- Original Message ----- 
From: "Kathy Quinlan" <kat-yahoo@kaqelectronics.dyndns.org>
To: <AVR-Chat@yahoogroups.com>
Sent: Friday, March 10, 2006 9:56 AM
Subject: Re: [AVR-Chat] RF communications


> Bryan Martin wrote:
>
>> Well thats a yes and no.  I currently have a 12v wall wart going into a
>> NX1000 dev board.  From there I take 12v off the nx1000 and go to the 
>> stk500
>> dev board.  I also take 5V off the nx1000 and go to the VCC and ground 
>> plane
>> of the breadboard that holds the RF modules.  I think I will try to clean
>> this up first in hopes that is the pblm.  I will try to drop the NX1000 
>> dev
>> board all the way out of the picture first and hook the wall wart direct 
>> to
>> the SDK500 even though that will still be pushing 5.8v when taking the 
>> pins
>> high.  That would be controlled by the STK500 I think.
>>
>> Bryan
>>
>
> FIRST off, do you have a good connection STRAIGHT from the STK500 0V to 
> the RF
> modules 0V as if you do not, or it is routed through other boards, this 
> could
> induce the voltage rise you are seeing and cause a lot of problems (DC is 
> only
> one, the AC ie noise etc. IS A LOT MORE)
>
> If you do not have a good 0V connection between the two, try it, it will
> probably solve a few problems.
>
> -- 
> Regards,
>
> Kat.
> ---------------------------------------------------------------
>  K.A.Q. Electronics     Website: www.kaqelectronics.dyndns.org
>  IM: Yahoo: PinkyDwaggy MSN: katinka@kaqelectronics.dyndns.org
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