Re: [ECOS] Porting on LPC2214

["Sridhar k" <ksridhar231 at gmail dot com>]

Thanks for your suggestions.
I forgot to mention in my last mail, the board has internal 1MB-SRAM
and 1MB-FLASH...I think I can use this ..Whats your suggestion on
this.


On 2/22/06, Andrew Lunn <andrew@lunn.ch> wrote:
> On Wed, Feb 22, 2006 at 04:39:55PM -0800, Sridhar Sridhar wrote:
> > Hi,
> > I would like to port eCos on LPCE2214 olimex proto type board.It has
> > Ehternet and USB port and 256k Flash and 16k RAM. I have couple of
> > questions.
> > 1] I think eCos is available for LPC2XXX series in CVS. How much
> > memory[ROM &RAM] will it take. and what are the limitations.
>
> I've recently done a port to the AT91SAM7S familiy. My experiance is
> that 16K RAM is small. eCos will run, but some of the standard tests
> use too much RAM to fit in 16K. Normally it is the stacks which cause
> the problem. You need to optimize there size. Even so, you are limited
> with only 16K RAM.
>
> > 2]Can I port using USB2.0.. which one is preferrable USB or Ethernet..
>
> USB should be possible. As far as i know it makes no difference if its
> USB2.0 or 1.1 in terms of the software. But i could be wrong....
>
> > 3]Do i get Network stack for this perticular controller.LPCE2214..Any
> > free sources.
>
> eCos contains the lwip stack which is small. However i don't know how
> much RAM you need for buffers etc. If i were you i would investigate
> this first since i think it is high risk.
>
>        Andrew
>

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