[avrdude-dev] Xmega/AVRispMkII reset bug fixed

[Erik Walthinsen]

I'm working on a contract that currently involves build stuff around the 
ATxmega16A4 chip, and so far have managed to bash a toolchain into 
shape, but was having problems with avrdude requiring me to completely 
disconnect the programmer from USB after every programming cycle, which 
was getting rather obnoxious.

I compared the verbose avrdude output from the STK500 log generated by 
AVRstudio, and on a hunch added one missing command, and voila! fixed. 
Why that command has anything to do with hanging on 2nd program I have 
no idea, but so far it's working repeatedly.

The fix is to call stk500v2_loadaddr(pgm,addr) just before the main 
block write loop in stk600_xprog_paged_write().  I'd provide a diff, but 
it's against 5.6 (which works, unlike 5.8 or svn...) and it's a trivial 
change.

I will be filing a bug report with this information shortly.