Re: [lwip-users] alignment problems

[Bartlomiej Wicher]

Dnia 08-11-2007 o 13:34:17 Jonathan Larmour <address@hidden> napisał:


> > I really don't feel like changing the whole code of LWIP.
>
> You may want to consider looking at uIP. It's possible that may cater
> better for your requirements:  
> http://www.sics.se/~adam/uip/index.php/Main_Page

I am afraid that uIP is not "powerful" enough. I read a bit about it and  
it is said to be useful for applications that "don't use TCP/IP normally".  
Besides, I guess I'll have similar byte-word problems with uIP (too high  
usage of memory, pointers conversions and alignment problems etc), since  
it is said to be developed for 8-bit CPUs. How do you think?
I think I'll spend a day or two trying to run lwIP. I've already ported it  
to my operating system and ethernet controller driver. The simplest server  
example didn't work - at least so far...
Thanks for your help. If I don't manage to make the lwIP work, do you know  
any free alternative stacks (except for uIP) that might work with my  
architecture?


> > I guess that
> > simply changing the char arrays to word (int) arrays would help only in
> > a case if you don't perform char* to int* conversions. Do you think that
> > defining u8_t and s8_t as word (int) could help? That would increase the
> > memory consumption, but it's not crutial for me right now...
>
> It might help. Although I'm sure there would still be quite a few changes
> required in lwIP.
>
> Jifl



--
Bartlomiej Wicher
University of Southern Denmark
Odense, Denmark