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Re: [avrdude-dev] [patch #4435] Safemode support for old fuse style


From: Brian Dean
Subject: Re: [avrdude-dev] [patch #4435] Safemode support for old fuse style
Date: Mon, 19 Sep 2005 19:28:43 -0400
User-agent: Mutt/1.5.9i

Hi Colin,

On Mon, Sep 19, 2005 at 02:03:04PM +0000, Colin O Flynn wrote:

> Is an update to the patch #4430 to support the "old" style chips that only
> have fuse, no lfuse/hfuse.
> 
> UNTESTED - I don't have a working programmer/AVR combination that I
> can test in on.

Same here - seems as though the chips I have also don't allow changing
the fuse byte from within SPI programming mode (AT90S2313 and
AT90S8515).

Can anyone else test this?  I have at least confirmed that the code
seems to still do the right thing for the ATmega128 when testing out
its fuses.  Of course, I can't really force a fuse bit error through
normal means, but I did override the orginal value in main.c to
simulate the effect and it appeared to do the right thing.

One minor suggestion - change the wording from:

    avrdude: safemode: efuse changed! Read as ff, was fd

To:

    avrdude: safemode: efuse changed! Was 0xff and is now 0xfd

Or similar.

The use of 'was' in the former is confusing since that is the present
value.

-Brian
-- 
Brian Dean
ATmega128 based MAVRIC controllers
http://www.bdmicro.com/




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