RE: [avrdude-dev] Creating batch files for programming AVRs

[Daniel Williamson]

If its of any help,
To set the fuses I used the terminal mode to set the fuses on an initial
board and then I read out the fuse memory locations to a file. Each fuse has
its own file such as lfuse.bin, hfuse.bin....
Then I just use a batch file which programs each fuse block in turn.

for reading the fuses and storing into files I use
avrdude -p m128 -P lpt1 -c pony -m lfuse -o lfuse.bin
avrdude -p m128 -P lpt1 -c pony -m hfuse -o hfuse.bin
avrdude -p m128 -P lpt1 -c pony -m efuse -o efuse.bin

and to write them I use
avrdude -p m128 -P lpt1 -c pony -m lfuse -i lfuse.bin
avrdude -p m128 -P lpt1 -c pony -m hfuse -i hfuse.bin
avrdude -p m128 -P lpt1 -c pony -m efuse -i efuse.bin

Dan

-----Original Message-----
From: address@hidden
[mailto:address@hidden Behalf
Of Joerg Wunsch
Sent: 17 April 2003 10:42
To: address@hidden
Cc: address@hidden
Subject: Re: [avrdude-dev] Creating batch files for programming AVRs


As address@hidden wrote:

> Erasing, programming flash and eeprom is no problem in a batch file,
> but how can I get access to the fuse bits outside the terminal mode?

Each of them occupies a ``memory region'' of its own.  You can see
their names in the part descript (IMHO, starting avrdude with -v will
show you, or in terminal mode, just type ;part+).  For an ATmega128,
the abbreviated names are lf, hf, ef.  Each of these regions has size
1, so only address 0 is valid.

Having a ``combined fuse bit pseudo-region'' is on the todo list.  The
goal is to eventually allow that you can specify symbolic fuse bits
within a pseudo statement in the C source code (via some defines and a
separate section in the ELF file).

--
J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/


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