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RE: [lwip-users] Help on porting LWIP

From: Pettinato, Jim
Subject: RE: [lwip-users] Help on porting LWIP
Date: Thu, 4 Nov 2010 08:43:46 -0400

Hello André,

Out of curiosity, which eval board are you working with? The BeagleBoard or 
Gumstix Overo perhaps? These are interesting platforms for many applications. 

The OMAP line of processors is pretty advanced - I wouldn't relish writing code 
for an OMAP-based platform without starting with a known good board support 
package - and ideally with a full OS (such as the Angstrom Linux distribution 
used with the above boards). 

Yes, you could probably port lwIP to the device, and yes, you could probably 
strip out any embedded OS and use lwIP's raw interface to provide the network 
connection - but it is going to be quite a bit of work. Especially since the 
network interfaces on the eval board(s) I mentioned above work out of the box. 

I guess I'm curious as to why you would want to essentially 'downgrade' such a 
platform (which is essentially a Linux computer in a tiny form factor) to a 
polled application with a network interface? Is this for a class assignment or 
something? If you are targeting a specific application, you might be better off 
using the standard Linux stack.

There is a generic Unix port of lwIP maintained on the Savannah if you are 
using one of the above platforms - that might help get you started with lwIP.

Good luck with your project!

- Jim

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of André
Sent: Thursday, November 04, 2010 6:47 AM
To: address@hidden
Subject: [lwip-users] Help on porting LWIP

Hello all.
I'm needing some help.

I'm working on an evaluation board with an OMAP processor (Texas). So, my 
activity is to pass some datas through a network connection between my board 
my PC.
As I was informed, I can port the lwip into different processors by changing 
access addresses on the code.
I'd like to know if someone could indicate me a literature that explains how do 
I find/change this addresses.

In time: I'm not suposed to use a embedded OS, so the addresses changes would 
enought to use it on my board?

Sorry if it is a newbie question, but I'm starting on the area.



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