I'm not sure if this is a bug, known issue, or just me doing something wrong. I
do know that avrdude and my mkII programmer program the device just fine. And
I'm hugely grateful to the avrdude folks for making it a possibility. I'm on
OSX (10.8) using CrossPack's latest avr package.
The command I try is
avrdude -p atxmega256a3 -P usb -c avrispmkii -e -U usersig:w:0BDE0010.hex:i
It fails at the verify step. Using the read variant of the above (which works
fine), I can see that it somehow mashed new write with the old contents, ending
up with something in between. So the verify fails.
Am I doing something wrong? Is this a known bug or feature lack with avrdude? I
had seen that there was a patch for the 324 I think, to etc/avrdude.conf. I
played with the usersig a bit:
memory "usersig"
size = 0x200;
offset = 0x8e0400;
page_size = 0x100;
readsize = 0x100;
;
changing page/read size to 0x200, but it didn't make a difference.
TIA
--
Travis Griggs
"Ninety per cent of most magic merely consists of knowing one extra fact."
-Terry Pratchett
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