[sdiy-interim] AVR help

[John Loffink]

The STK500 (US$79) and and AVR Dragon (US$49) both support high voltage
programming.  Do you really need HVP to reprogram the OCDEN fuse bit though?
I don't see that requirement in the Atmega16 specification.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: synth-diy-bounces at aym.net2.nerim.net [mailto:synth-diy-
> bounces at aym.net2.nerim.net] On Behalf Of labolida
> 
> synth-diy at vermine.org
> I started to work with ATMega 16 with STK200 programmer, using AVRDUDE.
> 
> I was stupid enough for writing the fuse high byte with '0' in OCDEN bit,
> disabling low voltage programming in
> several chips.
> Yes, I used mask hfuse:w:0x10:m instead of hfuse:w:0x90:m.
> 
> As I understood in the datasheet, only can be write again with high
> voltage programming.
> 
> Anyone knows any trip for restore this bit to '1' with low voltage
> programmer or a simple high voltage programmer?
> 
> Thanks in advance
> 


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