AVR-Chat

I have fried a couple AVRs using a LPT port SPI programmer.
	The problem went away when I first connect a ground wire between the 
PC and the hardware being programmed.
	The SPI cable will be inserted only after the ground is connected.

	Usually the fried chips identify as 00-00-00 or FF-FF-FF.
	They can't be recovered even using a parallel (HV) programmer.

	Mark Jordan


On 2 Nov 2007 at 6:36, John Samperi wrote:

> At 03:50 PM 31/10/2007, you wrote:
> >I have some problem with my printer port(I think so)
> 
> It usually kills your chip, parallel port programmers
> are bad news even though some people seem to get them working
> without too much trouble.
> 
> You have probable switched off the internal clock of the chip
> and will need to feed a clock into xtal 1.
> 
> 
> Regards
> 
> John Samperi
>