[ECOS] Linux or ecos?

Roland Caßebohm roland.cassebohm@visionsystems.de
Wed Nov 7 06:17:00 GMT 2001


Andrew Lunn wrote:
> 
> The TCP/IP stack can eat of lot of DRAM. How fast a network link do
> you need. You can trade off speed for network buffer speed.
> 
> The ethernet device you use will also have a big affect. eg the i82559
> uses 1Mbyte of RAM for its PCI window. I don't expect you will use
> this device because its expensive and requires a PCI bridge etc. A
> simpler, slower device with polled IO will require less memory, but
> perform much slower.
> 
> If you application is really simple, you could think about building it
> into redboot itself. That has its own really simple IP stack and basic
> drivers for the serial ports.
> 
>         Andrew

The i386 hardware have an ne2000 compatible chip on it and the arm and
mips hardware I down't by now. I think it will be onchip.
There is another idea I think of, I want to write source of my
application POSIX compatible because in future the application will be
more complex, so that I have to use Linux then. But in the release of
ecos which I have downloaded (1.3.1) I haven't seen POSIX funktions. 
I have read the documentation of building redboot. Is it right that
redboot is a simple ecos with a simple application?



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