Re: Bootloader for flash howto???

From: moocowmoo (meltyb_at_hotmail.com)
Date: 05/11/04 

Date: Tue, 11 May 2004 10:44:24 +0100

"GreateWhite.DK" <mse@ect.dk> wrote in message
news:409f4668$0$433$edfadb0f@dread14.news.tele.dk...
> Hi people
>
> Well here I am. I have never tried work with bootloaders before so I
thought
> that news groups might would be a good place to start as all the old
school
> experts hang around here :o)
>
> One of my problems are that I need to fit alot of SW down in to a 1MB
flash.
> So i'm looking for the possiblity of compressing the binary file and then
> extracting this into the RAM(2MB). How can this be done???( in detail if
> possible)
>
We use LZRW1 for compression which you can easily find on Google. We store
the various revisions compressed on flash and extract to ram on boot up. If
it fails then it will automatically fall back and boot from the previous
version which you need to consider if your units are remote controlled
hundreds of miles away.

Peter 

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