Marge Coahran schrieb: > I am using several STK500s with ATmega8515L chips to teach assembly > language in a computer science course.
Sounds good! I've seen too many CS students which have no glue about anything happening underneath the compiler. :-( > Today two students got the error > (below) from avrdude. As best I can tell, the serial port connections > are correct and solid. Can this error also mean something more ominous, > say that something on the chip or the board just got blown? > > For background, we were also plugging a speaker into the expandion > header on the STK500. I'm pretty sure this was the problem for one > student, who wired the speaker between CT1 and GND -- and the AVR socket > is now corroded! However, another student with the same error message > wired his speaker between PB0 and GND, which I believe should be fine > (and works correctly for me and others). Hmm... you propably don't want to wire up any inductance to any port pin directly - consider some basic physics when switching inductors: http://www.allaboutcircuits.com/vol_3/chpt_3/9.html Maybe you can also ask some guys from the electrical engineering courses for a review. ;-) > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > quine$ make program > /usr/local/bin/avrdude -y \ > -C /usr/local/etc/avrdude.conf \ > -p m8515 \ > -c stk500v2 \ > -P /dev/ttyS0 \ > -U flash:w:speaker.hex > > avrdude: stk500v2_command(): command failed > avrdude: initialization failed, rc=-1 > Double check connections and try again, or use -F to override > this check. > > ~~~~~~~~~~~~~~~~~~~~~~~~~ Smells really like a toasted AVR. Just replace the AVR and give it another try. Regards, Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Straße 45/1 Linhof Werksgelände D-81379 München Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com _______________________________________________ AVR-chat mailing list AVR-chat@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-chat
