avr:avrdude
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avrdude FAQ
This is done on OSX
Reading the Fuses failed
Command:
$ /usr/local/CrossPack-AVR-20130212/bin/avrdude -P usb -c avrisp2 -p m644p -qq -U lfuser:r:/tmp/LOW.tmp:h -B 1
Result:
avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check.
So try to increase the bit clock period for the JTAG interface with the -B option
Command:
$ /usr/local/CrossPack-AVR-20130212/bin/avrdude -P usb -c avrisp2 -p m644p -qq -U lfuser:r:/tmp/LOW.tmp:h -B 10
Result:
$ /usr/local/CrossPack-AVR-20130212/bin/avrdude -P usb -c avrisp2 -p m644p -qq -U lfuse:r:/tmp/LOW.tmp:h -B 10 $ cat /tmp/LOW.tmp 0x62
avr/avrdude.1387481061.txt.gz · Last modified: 2013/12/19 19:24 by sbolay