I think i have fried my chip with wrong fuse bits.I exactly reversed th bits in codevision..But now i know..The next chip is nicel programming..What can i do to erase the earlier chip?I cant even access i now.
Fried my atmega
Oct 24, 2007
4 Replies
"abicash" skrev i meddelandet news:65mdncASmMW2z4LanZ2dnUVZ snipped-for-privacy@giganews.com...
Parallel programming on an STK500.
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may not be shared by my employer Atmel Nordic AB
If you don't have a STK500 or similar as Ulf suggests, have you worked out what clock source that you did actually set it to ?
Simon.
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980's technology to a 21st century world
Some Atmegas at least, if you wrong-foot the fuse bits, get set into a mode requiring an RC oscillator, with external RC connected to the XTAL1/2 pins. I've taken to putting N/F component sites on these pins on every Atmega board I do, just in case.
Having recently switched from the HC08 to the AVR for my hobbyist projects, this is something that I am _very_ aware of (and check multiple times) while setting fuse bits. :-)
I was thinking that the OP could recover his AVR if he could work out what clock source the AVR was now expecting.
Simon.
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980's technology to a 21st century world
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