On Wed, 2012-07-25 at 16:40 +0200, Ralf Glaser, track IT wrote: > i'm trying to program the boot section of an ATXMega128D3 and it doesn't > seem to work.
XMEGA support does seem to be quite broken for flash sections on released versions. I've had less problems with r1090 from SVN (and probably newer SVN versions are okay as well). In particular, it honors page-by-page erase so you don't need to do a chip erase and your bootloader doesn't disappear, and it honors the "application" space which is good because doing anything to "flash" erases the boot section as well it appears. For a board I have using a 192D3 (slightly larger flash version of the same chip) I can do the following and retain the bootloader: avrdude -p x192d3 -c avrisp2 -P usb -U application:w:target.hex I'm using Xboot ( http://code.google.com/p/avr-xboot/ ) and it flashes the bootloader to the "boot" section but does so with an image which assumes you're using "boot" as a section (ie, 0 is start of boot, not start of flash/application). Works at least from SVN copies, anyway! -- David Zanetti <da...@wetstring.net> http://hairy.geek.nz/
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