(/dev)-(root@asterisk)--> avrdude -p m644 -c dapa

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.


avrdude done.  Thank you.

(/dev)-(root@asterisk)--> avrdude -p m644 -c dapa -F

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0xffffff
avrdude: Yikes!  Invalid device signature.
avrdude: Expected signature for ATMEGA644 is 1E 96 09

avrdude: safemode: Fuses OK

avrdude done.  Thank you.

(/dev)-(root@asterisk)-->