Hi.. I was able to "revive" a completely wacked out atmega32 by the following:
KEY -> attach a 12mhz xtal (instead of a 16mhz xtal) code for default with jtag disabled: avrdude -p m32 -b 19200 -P COM3 -c avrisp -V -F -e -u -U lock:w:0×3F:m -U lfuse:w:0xe1:m -U hfuse:w:0xd9:m then re-attach your 16mhz xtal and use this: (defaults for 16mhz xtal / jtag disabled / fast power-up): avrdude -p m32 -b 19200 -P COM3 -c avrisp -V -F -e -u -U lock:w:0x3F:m -U lfuse:w:0xef:m -U hfuse:w:0xd9:m //...how sweet it is James Pascoe wrote: > > Hi All, > > Apologies for the following question which is very OT, but there is a > good chance you guys can help. > > I am using an ATMega32 and inadvertantly programmed the fuse bits wrong > :-( ... instead of setting > the fuse bits to use a 16 Mhz external crystal as the clock source, I > programmed the chip to use the low frequency > crystal oscillator setting. Of course now, I can not program the device > anymore. > > Does anybody know if there is any way (other than getting hold of a > 32.768 Khz crystal) that I can recover the device ? > > Many thanks for any suggestions, > > James > > > _______________________________________________ > AVR-GCC-list mailing list > AVR-GCC-list@nongnu.org > http://lists.nongnu.org/mailman/listinfo/avr-gcc-list > > -- View this message in context: http://old.nabble.com/ATMega32-fuse-bit-problem-tp12189077p29627869.html Sent from the AVR - gcc mailing list archive at Nabble.com. _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list