RE: [ECOS] Redboot with big block flashes and small amounts of ram

[Rycerz Roman-G11565 <roman dot rycerz at motorola dot com>]

Thanks for the info..

We make powertrain control modules for automobiles and trucks.  
What I am trying to do is to use eCos/Redboot to give us some early software
so we can begin functional testing of modules.
And have the ability to port to different platforms easily....  eCos/Redboot
seems to make that possible. Before the modules ship to customers the code
is replaced with engine strategy.  


-roman


-----Original Message-----
From: Gary D. Thomas [mailto:gary dot thomas at mind dot be] 
Sent: Friday, April 25, 2003 9:37 AM
To: Rycerz Roman-G11565
Cc: ecos-discuss (E-Mail)
Subject: Re: [ECOS] Redboot with big block flashes and small amounts of ram


On Wed, 2003-04-23 at 20:47, Rycerz Roman-G11565 wrote:
> Hi
>  
>     I have a platform with 2.5meg of flash and only 40k of ram.  The 
> external flash has 256k blocks.... Reboot as part of it setting up a 
> workspace for flashing tries to
>     allocate enough ram for a block.   Naturally it crashes...  Has anyone
> had to deal with this situation before ????
>  
> 

RedBoot has to perform read/modify/write access to the FLASH, so a 
buffer at least as big as the FLASH erase block is required.  Also, 40KB of
RAM would be really challenging to do much of anything with.

What are you expecting to be able to do/run in this environment?

>  
-- 
Gary D. Thomas <gary dot thomas at mind dot be>

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