Hi.. I was able to revive a completely wacked out atmega32 by the
following:
KEY - attach a 12mhz xtal (instead of a 16mhz xtal)
code for default with jtag disabled:
avrdude -p m32 -b 19200 -P COM3 -c avrisp -V -F -e -u -U lock:w:0×3F:m -U
lfuse:w:0xe1:m -U hfuse:w:0xd9:m
then re-attach your
James,
You can also use high voltage parallel programming mode to set fuses even when
serial communication is not possible (oscillator set incorrectly, reset pin
disabled, debugwire enabled, etc.).
A while back I made a simple circuit to allow an Arduino to parallel program
the
Sorry, forgot the link:
http://mightyohm.com/blog/2008/09/arduino-based-avr-high-voltage-programmer/
Jeff Keyzer
j...@mightyohm.com
On Sep 5, 2010, at 1:29 PM, wlewis wrote:
Hi.. I was able to revive a completely wacked out atmega32 by the
following:
KEY - attach a 12mhz xtal
Hi.. I was able to revive a completely wacked out atmega32 by the
following:
KEY - attach a 12mhz xtal (instead of a 16mhz xtal)
code for default with jtag disabled:
avrdude -p m32 -b 19200 -P COM3 -c avrisp -V -F -e -u -U lock:w:0×3F:m -U
lfuse:w:0xe1:m -U hfuse:w:0xd9:m
then re-attach your
If you focus on erasing the chip to regain control of it, then you can
use nearly anything that provides logical zeros and ones as a clock.
For instance I recovered chips sometimes by using UART traffic because
I had no other hardware at hand: I took a RS232-UART converter, sent a
big file
For instance I recovered chips sometimes by using UART traffic because
I had no other hardware at hand: I took a RS232-UART converter, sent a
big file from a terminal emulator (with no particular protocol, just raw
byte sending) and I tried a few times to erase the chip until it worked ;-)
From: [EMAIL PROTECTED]
For instance I recovered chips sometimes by using UART traffic because
I had no other hardware at hand: I took a RS232-UART converter, sent a
big file from a terminal emulator (with no particular protocol, just raw
byte sending) and I tried a few times to
:
Date sent: Sun, 11 Nov 2007 10:59:51 -0800 (PST)
From: Csroluxx [EMAIL PROTECTED]
To: avr-gcc-list@nongnu.org
Subject:Re: [avr-gcc-list] ATMega32 fuse bit problem
James Pascoe wrote:
Hi All,
Apologies for the following
James Pascoe wrote:
Hi All,
Apologies for the following question which is very OT, but there is a
good chance you guys can help.
I am using an ATMega32 and inadvertantly programmed the fuse bits wrong
:-( ... instead of setting
the fuse bits to use a 16 Mhz external crystal as the
On 11 Nov 2007 at 10:59, Csroluxx wrote:
Date sent: Sun, 11 Nov 2007 10:59:51 -0800 (PST)
From: Csroluxx [EMAIL PROTECTED]
To: avr-gcc-list@nongnu.org
Subject:Re: [avr-gcc-list] ATMega32 fuse bit problem
James Pascoe wrote
Cool ... thanks that worked great.
Thanks guys,
James
Jkx wrote:
On Thu, 23 Aug 2007 07:22:22 -0400
Graham Davies [EMAIL PROTECTED] wrote:
James Pascoe
I am using an ATMega32 and inadvertantly programmed the fuse
bits wrong ...
Does anybody know if there is any way (other than
On Thu, 23 Aug 2007 07:22:22 -0400
Graham Davies [EMAIL PROTECTED] wrote:
James Pascoe
I am using an ATMega32 and inadvertantly programmed the fuse
bits wrong ...
Does anybody know if there is any way (other than getting hold of a
32.768 Khz crystal) that I can recover the device ?
I
On Thu, 16 Aug 2007 20:34:25 +0100
James Pascoe [EMAIL PROTECTED] wrote:
Hi All,
Apologies for the following question which is very OT, but there is a
good chance you guys can help.
Hi James,
Yes this is off-topic, but it would be perfectly spot on topic on the
sister list of avr-gcc :
13 matches
Mail list logo