Tue 03 Mar 2009 09:21:45 PM UTC, original submission:
Using avrdude -c butterfly, the wrong avr910_devcode is used.Programming a mega8535, avrdude 5.2, the communication is like this (captured using slsnif):
-------------------------------------
Host --> t (116)
Device --> C (067) i (105) t (116) v (118) 0 (048) 8 (056) h (104) <NUL> (000)
Host --> T (084) i (105)
-------------------------------------
Using avrdude 5.5, communication is like this:
-------------------------------------
Host --> t (116)
Device --> C (067) i (105) t (116) v (118) 0 (048) 8 (056) h (104) <NUL> (000)
Host --> T (084) C (067)
-------------------------------------
Although version 5.5 prints this:
-------------------------------------
avrdude: Version 5.5, compiled on Mar 1 2009 at 20:40:35
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/root/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/pts/6
Using Programmer : butterfly
Overriding Baud Rate : 19200
AVR Part : ATMEGA8535
Chip Erase delay : 9000 us
PAGEL : PD7
-------------------------------------
it does not use the avr910_devcode which is written in /etc/avrdude.conf for the mega8535.
I have not captured communication with other versions, but 5.4 and 5.6 behaved identically to 5.5 as far as could be seen from the command line.
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