[avrdude-dev] Verification error using Avrdude 6.0.x with M64 and usbasp

[Randy Perkins]

Hello
I am getting a mismatch when trying to flash a M64 with avrdude 6.0.x

avrdude: verification error, first mismatch at byte 0x0100
         0xff != 0x3d

the mismatch repeats every 0x0100 bytes and at every 0x100 bytes 0x10 bytes
are at FF

I have programmed smaller MCU such as m328p and m8 successfully with
avrdude 6

More information is located at
http://openrcforums.com/forum/viewtopic.php?f=94&t=5036&p=71051#p70969
Including  detailed information such as:
Exact revisions of avrdude 6 used.
Linux versions that avrdude 6 was compiled on.
hex files attempted to flash.
firmware used on the usbasp ( yes I tried the stock 2011 from fischl.de).
details of successful  flash using same hardware and avrdude 5.11
complete diff of the failed flash

I can post any of that information here or whatever else is needed.

Thanks for all your work on avrdude and any insight you can tell me to what
I am doing wrong or what needs to be done to remedy my problem.  I would
like to start using avrdue 6

thanks

Randy Perkins
http://9xrprogrammer.com