AVR-Chat

On Sun, 13 Feb 2005, David Kelly wrote:

> 
> The problem is that your 7805 isn't protected against "back feeding."
> Its trying to regulate its output which is being driven higher than its
> unpowered input by your ISP cable.
> 

I've been using the Altera Byteblaster to program Altera CPLD's.  The 
Byteblaster I use has no power source in itself and gets its power from 
the board it's programming.

It could very well be latch-up.

Zack