How to reduce code footprint for lwIP

Altera_Forum · ‎11-19-2004

I download standalone lwIP realization from here. I use "standart" NiosII reference design. After building lwip_web_server example project I found that code footprint is near 250 Kbytes.

In README file located at : project_directory/lwip-0.7.1/readme I found next text:

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

The focus of the lwIP TCP/IP implementation is to reduce the RAM usage

while still having a full scale TCP. This making lwIP suitable for use

in embedded systems with tenths of kilobytes of free RAM and room for

around 40 kilobytes of code ROM.[/b]

--- Quote End ---

So my question: what I have to modifie in project to reduce memory requirements?

How to fit code footprint to <div class='quotetop'>QUOTE </div>

--- Quote Start ---

around 40 kilobytes of code ROM.[/b]

--- Quote End ---

?

If 40 Kb is too small than around 100Kb also will be OK.

?

Altera_Forum · ‎11-24-2004

I'm in a hurry or else I'd be more help.

In the software design doc up on the altera site under NIOS II, it talks about settings to reduce your foot print size. Some ideas are Small C library, no clean exit, etc....

Good-luck