[ECOS] ecos memory footprint

Simon Kallweit simon.kallweit@intefo.ch
Tue Jul 14 08:43:00 GMT 2009


Mandeep Sandhu schrieb:
> Hi All,
>
> Anybody knows if ECOS can run in 64KB mem (or lesser) with the following
> features:
>
> * USB Device/slave support
> * SPI Driver support
> * Networking support (for running a small webserver)
>
> I've not yet narrowed down on my h/w yet...but Microchips PIC32MX460F128H
> seems promising? But the sad part is that ecos doesn't show this in their list
> of supported h/w.
>
> Have ppl run ecos on microcontrollers w/o external SDRAM (I'm trying to conserve
> power by not having ext RAM)?
>   

This will be rather tough, but probably possible. You should use the 
lwIP networking stack to keep memory usage low. Also, try to use as few 
threads as possible, as this saves you valuable stack memory.

Simon

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