Re: [lwip-users] Minimum sytem requirements

[Timmy Brolin]

In short, if your system has at least 10kB of RAM and you want some 
degree of TCP/IP performance, then lwip os probably right for you.
If you have less than 8-10kByte RAM, then I would suggest the TCP/IP 
stack "µIP" which can actually work with less than 1kByte of RAM if I 
remember correctly. The disadvantage is that µIP performance is very low.

ATmega32 only has 2kBytes of RAM and 32kBytes of FLASH, so I think µIP 
is your best bet.
ATmega32 has no external bus interface, so connecting a Ethernet MAC to 
the mega32 will be a bit complicated. But perhaps you intend to use a 
serial PPP interface instead?

Regards,
Timmy Brolin

Leon Woestenberg wrote:

> Hello Maikel,
>
> Maikel Punie wrote:
>
> > ok,
> >
> > I started developping a for my final project at uni, and lwip seems 
> > perfect for it, but i have some questions :)
> >
> > 1- What are the minimum requirements for an microprosessor to be able 
> > to run lwip? (like an atmel mega32, wich would be perfect)
>
> From the Savannah main page (which is not *very* exact but gives a 
> good idea):
>
> "The focus of the lwIP TCP/IP implementation is to reduce resource usage
> while still having a full scale TCP. This making lwIP suitable for use
> in embedded systems with tens of kilobytes"
>
> > 2- Are there some example programs off projects that use lwip? Like 
> > the basic stuff, how do initialize it? how to i define ip adress, ....
> The lwip-contrib tree in CVS has simple examples, especially the Unix 
> project has some.
>
> Google a bit for application built on lwIP.
>
> Regards,
>
> Leon.
>
>
> _______________________________________________
> lwip-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/lwip-users