[avrdude-dev] [patch #6825] xmega problems with JTAGICEmkII

[Zoltan Laday]

URL:
  <http://savannah.nongnu.org/patch/?6825>

                 Summary: xmega problems with JTAGICEmkII
                 Project: AVR Downloader/UploaDEr
            Submitted by: zladay
            Submitted on: Fri 08 May 2009 10:13:15 AM GMT
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

I am attaching a patch that fixes some xmega problems on JTAGICEmkII.
Added support/resolved issues:
- handling (r, w, v) of the following memory types
  * EEPROM
  * flash (including sections: application, application table and boot)
  * fuse bytes (0, 1, 2, 4, 5)
  * JTAG signature
  * lockbits
  * production signature
  * user signature
Supported xmega MCUs:
- 128a1d, 128a1, 192a1, 256a1
- 64a3, 128a3, 192a3, 256a3, 256a3b
- 16a4, 32a4, 64a4, 128a4
It was tested with an x128a1 only. Support for the rest
is based on the documentation only and is not tested.

Fixed bugs:
Segmentation fault caused by buffer overflow in jtagmkII_paged_load()
in jtagmkII.c.

Known issues:
- writing of user signature failure at verification (contents differ from
data written)
- writing of EEPROM failure at verification (contents differ from data
written) -
   the same behavior is experienced with the recent [4.16.628] version of 
   AVR Studio - no working reference implementation is known

Still to do (among others)
- PDI physical interface support - recent version works with JTAG only
- erase operations (chip, flash, application, boot, EEPROM, user signature) 





    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Fri 08 May 2009 10:13:15 AM GMT  Name: avrdude-jtagicemkii-xmega.patch 
Size: 37kB   By: zladay

<http://savannah.nongnu.org/patch/download.php?file_id=18118>

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/patch/?6825>

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