Re: [avr-gcc-list] ATMega32 fuse bit problem

2010-09-07 Thread wlewis
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2010-09-07 Thread Jeff Keyzer
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2010-09-07 Thread Jeff Keyzer
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2010-09-05 Thread wlewis
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-13 Thread Bernard Fouché
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-13 Thread David VanHorn
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 ;-)

RE: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-13 Thread Dave Hansen
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-12 Thread Steven Michalske
: 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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-11 Thread Csroluxx
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-11-11 Thread Anton Erasmus
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-08-30 Thread James Pascoe
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-08-23 Thread Jkx
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

Re: [avr-gcc-list] ATMega32 fuse bit problem

2007-08-16 Thread Vincent Trouilliez
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 :