hello guys,
i have a melzi v2.0 runs on ATMEL ATMEGA1284P chip ... i have tried to burn the bootloader on this chip using this methos in here Melzi - RepRap ,I used arduino uno as isp but i get this error:
avrdude: Expected signature for ATMEGA1284P is 1E 97 05
Double check chip, or use -F to override this check.
and ai tried to shange the signature by
1284-PU has signature bytes 0x1E 0x97 0x06
1284P-PU has signature bytes 0x1E 0x97 0x05
Then, done the same in boards.txt for 1284 vs 1284P.
an i stell have errors while burning the bootloader
Any help Please
thanks in advance
When you get that error, the first thing you should do is turn on verbose upload, and try again. Before you go editing files. 9 times out of 10 that indicates a hardware problem.
Now it will tell you what signature it is seeing. 0xFFFFFF indicates wiring problem (MISO shorted to vcc, usually) 0x000000 indicates wiring problem OR chip set to use crystal and no crystal present. Three low and completely wrong numbers can indicate reset is shorted to ground or otherwise held low.