AVR-Chat

It's never a good idea to power an external circuit from your computer's 
supply.  If there's a problem externally there's a chance you might let 
all of the smoke out of the computer supply...and once we let the smoke 
out, they quit working.  At that point we have an external circuit that 
has to be replaced...and a computer that needs to be repaired or replaced.

Not that I've ever done this, mind you...


REB




Cat C wrote:

>I wrote the previous as soon as I could, in case speed was of the essence... 
>to save your board.
>Then I gave it some thought, and... sure a diode is shorted, but I think it 
>should still work.
>
>Sorry about that :-)
>
>Cat
>
>----Original Message Follows----
>From: "Cat" <catalin_cluj@hotmail.com>
>Reply-To: AVR-Chat@yahoogroups.com
>To: <AVR-Chat@yahoogroups.com>
>Subject: Re: [AVR-Chat] clock speed
>Date: Sat, 23 Jun 2007 22:24:12 -0600
>
>I may be wrong, but DISCONNECT THAT IMMEDIATELY! USE A WALLWART!
>
>Ground of PC should not go to the power connector of the STK500, because
>there's a bridge rectifier there...
>You might have blown it.
>
>If I'm wrong, sorry about the panic :-)
>
>Cat
>----- Original Message -----
>From: "Thomas Keller" <tjkeller1@alltel.net>
>To: <AVR-Chat@yahoogroups.com>
>Sent: Saturday, June 23, 2007 7:30 PM
>Subject: [AVR-Chat] clock speed
>
>
> >
> > OK. I am  new to development kits/systems.  I have my STK-500 set up
> > with power (beibng stolen from a disk drive power connector in my PC)
> > and the serial connection.   When I try to program in the switches and
> > LED sample program, it fails, and the tip suggests checking clock
> > frequency setting.  WHERE am I supposed to check that, and where do I
> > set it?
> >
> > tom
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
>
>Yahoo! Groups Links
>
>
>
>_________________________________________________________________
>Fight Allergies With Live Search 
>http://search.live.com/results.aspx?q=Remedies+For+Spring+Allergies&mkt=en-ca&FORM=SERNEP
>
>
>
> 
>Yahoo! Groups Links
>
>
>
>
>
>  
>