Re: [ECOS] Running application from flash + flash filing system?

[Jonathan Larmour <jifl at eCosCentric dot com>]

Lee Davies wrote:
> I want to use an Atmel AT91FR40162 (2048K internal Flash, 256K internal
> RAM) with ECOS.
>
> Due to the slight limitation in RAM I want to run my application from
> FLASH, can ECOS do this?

Sure.

> If it can, will ECOS still support the file filing system if the
> application is flash based?

Hah, see the other thread about this that I replied to earlier talking 
about JFFS2 ("Re: JFFS2 success"). But your situation is worse than just 
the interrupt vector table. If you're running your whole application out of 
flash, then you'll have to make sure your flash functions are in RAM (most 
drivers should do this automatically) and be prepared to disable interrupts 
the whole time the flash operation is going on.

This will kill your real-time determinism but there's no alternative if 
your whole application is in flash.

Jifl
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