URL:
<http://savannah.nongnu.org/bugs/?36901>
Summary: flashing Atmega32U4 EEPROM produces garbage on chip
Project: AVR Downloader/UploaDEr
Submitted by: None
Submitted on: Fr 20 Jul 2012 13:00:49 UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: Matthias Trute
Originator Email: [email protected]
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
Flashing the EEPROM area with avrdude svn-trunk (as of 20.7.2012) fail at the
verfication stage with an error message:
[exec] avrdude: verification error, first mismatch at byte 0x0001
[exec] 0x01 != 0xff
[exec] avrdude: verification error; content mismatch
Erasing the chip with -e works correctly. Flashing the same hexfile with the
programming tool from AVR Studio6 under windows works fine and gives a working
system (same hardware)
Hardware details: Atmega32U4@16MHz (U4DIL board from reworld.eu)
Programmer Model: AVRISP mkII
[exec] Hardware Version: 1
[exec] Firmware Version Master : 1.17
Attached 4 Hex files:
usb32-back.eep.hex-original from avrasm,
usb32-back.eep.hex-broken flashed and read back with avrdude
usb32-back.eep.hex-fine flashed with Studion Programmer and read back with
avrdude.
Together with the usb32.hex the working eep file provides a forth system with
a serial terminal at usart1 (38400 8N1) (for testing with the hardware
setup).
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Fr 20 Jul 2012 13:00:49 UTC Name: usb32.eep.hex-original Size: 214B
By: None
Hexfiles for both broken and working setups
<http://savannah.nongnu.org/bugs/download.php?file_id=26230>
-------------------------------------------------------
Date: Fr 20 Jul 2012 13:00:49 UTC Name: usb32-back.eep.hex-broken Size: 2kB
By: None
Hexfiles for both broken and working setups
<http://savannah.nongnu.org/bugs/download.php?file_id=26231>
-------------------------------------------------------
Date: Fr 20 Jul 2012 13:00:49 UTC Name: usb32-back.eep.hex-fine Size: 2kB
By: None
Hexfiles for both broken and working setups
<http://savannah.nongnu.org/bugs/download.php?file_id=26232>
-------------------------------------------------------
Date: Fr 20 Jul 2012 13:00:49 UTC Name: usb32.hex Size: 71kB By: None
Hexfiles for both broken and working setups
<http://savannah.nongnu.org/bugs/download.php?file_id=26233>
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?36901>
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