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Topic: arduino/sanguino with ATmega644 (non P) (Read 1 time) previous topic - next topic


since I've got an ATmega644 (non P) lying around, I am wondering if it cannot be used in an sanguino.

I flashed it with the bootloader that comes with the sanguino software, set the fuses but when I now try to upload a sketch with the arduino software I get an error:
avrdude: Expected signature for ATMEGA644P is 1E 96 0A
        Double check chip, or use -F to override this check.

Can someone please point me to where I could either add the "-F" option or change the chip to ATMEGA644?



Oct 23, 2008, 01:29 am Last Edit: Oct 23, 2008, 01:30 am by mem Reason: 1
In the boards.txt file, change

everything else can remain the same


actually I replaced every occurance of atmega644p with atmega644 before, but i DIDN'T RESTART the arduino software, so it didn't work and I changed it back.

But after a restart, everything is working fine, thanks @mem


Nov 21, 2010, 01:23 am Last Edit: Nov 21, 2010, 01:24 am by Megaionstorm Reason: 1
What are the dimensions of a atmega644P'U DIP40 in milimeters ?
Mein Arduino Projekte Blog:


You mean, as in 40 pin part, 0.6" wide, 0.1" lead spacing?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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