AVR-Chat

On 6/7/07, A F <afaupell@yahoo.com> wrote:
> Whoever said ground issue, you win the secret prize. Im using an stk500 which has a diode on ground for reverse polarity protection. Sure would be nice if the users guide mentioned something about that. So I moved the breadboard ground from the bench supply to the stk board and all is well. Thanks for the help.


The power input goes through a bridge rectifier, which always puts a
diode in series with Vin and the power supply - lead. They provide GND
pins though, which you should connect out to your hardware.

Glad you found it though!  :)