Comments on: Howto recover wrong fuses settings on a AVR

By: stylediva

stylediva — Mon, 23 Jan 2012 10:13:29 +0000

we are using 8MHz crystal… How to set the fuse bits for that..

By: stylediva

stylediva — Sun, 22 Jan 2012 14:55:58 +0000

i have placed 8Mhz external crystal.how can i do the settings of fuse bits for that???..help..

By: kin3zu

kin3zu — Wed, 02 Nov 2011 15:38:14 +0000

hello. i have used this method for ATmega16 and ATtiny2313 and it works. i have AVRPROG usb2 programmer (is polish i think) thank you. best regard

By: karthik c

karthik c — Sat, 08 Oct 2011 19:35:51 +0000

Pardon for my ignorance,One of my atmega32 is not working when i tried to set fuse bits
in extreme burner AVR software.I tried to set fuse bits such that it uses an external crystal clock source. i.e. set high byte 89 and low byte FF.
but after programming when i tried to read contents the software shows error like this
“Powering on failed
cannot able to communicate with target chip…”
and i does not changed SPIEN value,
please tell how to recover the chip.
thanks in advance.

By: Andriansah

Andriansah — Tue, 16 Aug 2011 16:52:30 +0000

Thank you very much, my three chips can now be used again,

This code in Bascom:

$regfile = “m8def.dat”
$crystal = 16000000

Ddrc.5 = 1

Do
Portc.5 = Not Portc.5
nop
nop
Loop

End

By: bmx64

bmx64 — Sun, 26 Jun 2011 09:41:38 +0000

hi kpax, I am a newbie to uC, I have bricked a quadcontroller board with atmega48pa .can you help by submitting a detailed schematic diagm of how you actually do this, and what frequency is required for atmega48pa….

By: Mal

Mal — Fri, 10 Jun 2011 15:22:57 +0000

This did not work for me on a ATtiny2313 with either 1Mhz or 4Mhz.
I accidentally inverted the low/high fuses (wrote L:DF, H:64), thus disabling the external reset.

Anyone with a similar scenario have any success ?

By: Kpax

Kpax — Mon, 06 Jun 2011 12:54:10 +0000

Thanks a Ton guys, this just works perfect, awesome find, i just recovered my bricked Atmega32 soldered on a board by touching the XTAL 1 pin to another uC generating a 4 MHz clock and re writing the Fuse using using the SPI programmer. Great work.

By: brown

brown — Wed, 06 Apr 2011 15:59:09 +0000

i am using extreme burner to burn the program(written using codevision compiler) into an atmel mega 32 chip. i dont have a clue as to how to set the low and high fuse bits in the extreme burner. how to understand which clock frequency must be set?? i am new to this. please help !!

By: joseph

joseph — Thu, 03 Mar 2011 02:44:45 +0000

i have programmed the above program in atmega32 from where i can take the clock output to give into another atmega as a external clock