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RE: [lpc2000] OT: PPP implementation for uIP

2005-12-07 by Joel Winarske

> I believe the uIP project is the one that is actively being
> developed. I had planned to look at LwIP first, as I think
> thats what was running on the Olimex demo ported by Crossworks.

The Crossworks port is of uIP, as is the FreeRTOS port.  Paul mentions a
0.9.1 version of uIP on his page:
http://www.crossstudio.co.uk/msp430/uip.htm
I sent Adam an email requesting it, perhaps I will get a response.

> I also have an Altera NIOS II development kit that appears
> to have a uCOS-II+LwIP demo.

The lwIP implementation in Altera's NIOS II environment is 0.7.2 I believe.
Perhaps they updated to 1.1 in the recent 5.0 release?

> 
> Whats your feeling on the two projects ... take a look at the
> LwIP examples, by actually do any new work with uIP?

My take is that uIP is best suited for a quiet collision domain, or perhaps
with hardware assist.  Altera had published a very interesting white paper
on offloading portions of the IP stack to hardware in the form of DMA
peripherals.

Working IAR build of uIP/SLIP:
12 312 bytes of CODE  memory 
 4 700 bytes of DATA  memory (+ 30 absolute ) 
 6 464 bytes of CONST memory

This might be interesting to compare against a lwIP/SLIP implementation.


Joel

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