[avrdude-dev] [bug #46843] avrdude=>6 fails to write from 128k-mark onwards, loops back to 0x0000

[anonymous]

URL:
  <http://savannah.nongnu.org/bugs/?46843>

                 Summary: avrdude=>6 fails to write from 128k-mark onwards,
loops back to 0x0000
                 Project: AVR Downloader/UploaDEr
            Submitted by: None
            Submitted on: Thu 07 Jan 2016 01:34:16 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Maarten van Eeuwijk
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

avrdude version 6 series fails to write programs bigger than 131.072 bytes to
flash on my atxmega256a3bu. Instead of continuing onwards from the 131.072
byte (128kb) mark, the write procedure loops back to 0x0000, corrupting data
from there on.

Or to put it an another way: When I flash a program 130kb in size, I end up
with 128k of data in my flash, whereof the first 2kb is corrupted.

This problem was introduced in the version 6 series of avrdude (I tried 6.0.1,
6.1, 6.1-svn-20131205 and 6.2). Version 5.11 works fine for me.

No errors show up during writing, the bug manifests itself during verification
and of course execution of the program, as the mangled program crashes the
MCU.

Curiously this 128k mark is exactly on the second time an offset is defined in
my intel .hex file. To rule out problems with the file reader code for that
format I also tried .srec and .elf; same result for all.




    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?46843>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.nongnu.org/