AVR-Chat

It obviously sounds like they were never programmed in the first place.
Maybe they slipped through. Is there any E^2 or RTC that was supposed to be
programmed too? Is that there?

Roland



2009/9/23 Tim Mitchell <tim@sabretechnology.co.uk>

>
>
> ----Original Message----
> From: AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>
> [mailto:AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>] On Behalf
> Of STEVEN Sent:
> 23 September 2009 13:44 To: AVR-Chat@yahoogroups.com<AVR-Chat%40yahoogroups.com>
> Subject: [AVR-Chat] Re: Mega128 apparently losing
> programming
>
> > Tim,
> >
> > Have you got anything else connected to the Isp Lines,
> > some peripheral or other, i have had units with ATMega
> > 16/168 where the eeprom has been "Erased" and the
> > soloution was to free up these lines and or set the boot
> > fuses so that code cannot be reprogrammed without erasing
> > the device.
>
> No there isn't. The mega128 is a bit funny in that the MOSI/MISO ISP
> lines use TXD1 and RXD1 pins rather than the SPI port pins as on most
> other AVRs.
>
> Also the fact that the fuses have been reprogrammed to the exact factory
> defaults is a bit bizarre. I can't imagine how this would happen
> accidentally.
>
> --
> Tim Mitchell
>
>  
>


[Non-text portions of this message have been removed]