Re: AW: [lwip-users] using differnet protocols parallel

[Çağlar AKYÜZ]

Marcel M. wrote:
> > > Which lwIP files must be ported for the STR912 system? For the STR912 i
> > >       
> > have
> >     
> > > got a complete ethernet library from ST.
> > >
> > >       
> > Library? What kind of a library? I don't think it's a complete stack.
> >     
>
> It's just a hardware library for the included ethernet controller (init,
> send,...) and no TCP/IP Stack. Are there a documentation for lwIP, which
> shows the needed modifications to port the lwIP-Stack to other hardware
> systems? Or a list of files which must be modify? 
>   

I think things you mention in your next paragraph should be enough.

>   
> > ... 
> > FreeRTOS supplies sys_arch functions for threading support.(I
> > think this is the recommended way in lwIP) If you go for ST you have to
> > implement your own sys_arch functions. 
> > ...
> >     
>
> There is a ported freertos for the STR912. So i don't need to implement own
> sys_arch functions, or? I "just" have to port the lwIP-Stack ethernet
> Interface for the STR9. Because the sys_arch functions, which lwIP use, are
> freertos functions(when i use the ARM7 freertos/lwIP example on
> www.freertos.org).
> So i combine the STR9 freertos with the lwIP/freertos-port (with adapted
> hardware ethernet interface)?! Or is that a completely wrong way?
>   

Sure,that's the way. Just modifing FreeRTOS sys arch functions according 
to your processor will be enough. In fact, since
FreeRTOS has a working port for STR912 it is not such a big deal. 
Besides you can contact FreeRTOS maintainer(Richard Barry)
for help. I guess he will be happy to see a working copy of FreeRTOS + 
lwIP on a ST.

> Regards
> Marcel
>   

Kind Regards,
Caglar AKYUZ