[avrdude-dev] [bug #18803] Fuse reading regression in avrdude 5.3.1 with avr910 programmer

[Andreas Beckmann]

URL:
  <http://savannah.nongnu.org/bugs/?18803>

                 Summary: Fuse reading regression in avrdude 5.3.1 with
avr910 programmer
                 Project: AVR Downloader/UploaDEr
            Submitted by: anbe
            Submitted on: Tuesday 01/16/2007 at 17:02
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: anbe
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Reading fuses, lock and calibration fails with an avr910 programmer and
avrdude 5.3.1 (Debian package 5.3.1-1).
This was working with avrdude 5.2 (Debian package 5.2-2).

The programmer used is an ICprog-AVR2.0 KANDA from http://ic-board.de (an
AVR910 compatible USB programmer).
The microcontrollers used are AT90S8535 and ATmega8535.

Error from avrdude:

  avrdude: Device signature = 0x1e9308
  avrdude: safemode: Verify error - unable to read lfuse properly. Programmer
may not be reliable.
  avrdude: safemode: To protect your AVR the programming will be aborted

and if I override safemode (-u):

  avrdude: reading calibration memory:
  Reading |                                                    | 0% 0.00
  savr_read(): error reading address 0x0000
  read operation not supported for memory "calibration"
  avrdude: failed to read all of calibration memory, rc=-2

After downgrading (back to 5.2-2) everything works fine, again.




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