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Altera_Forum's avatar
Altera_Forum
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15 years ago

Lwip

Hi guys. In my system, l have 2 Nios processors.One of the is responsible for Ethernet communication. I am not using MicroC/OS-II(too expansive for as).I am going to use FreeRTOS with lwIP(TCP/I...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

lwIP for Altera is old and not recommended for new design (on their opinions).

I had made many "deep"(google cache, white papaers...) researches too. Sorry, I can't help you. I abandoned my researches and my project is suspended (objectif changed).

You should consider InterNiche Stack which, in my opinion, "can" be ported to FreeRTOS.

lwip :

advantages : free, open source, ported to FreeRTOS....

inconvenients : not stable, hard to implement (site is very confused), Even if there are documents, it is not easy to use. not many examples with MAC/phy.

i suggest to look at billa's post. he posted a driver...... (thanks to billa).

interniche stack :

advantages : good support, used by Altera (with ucOS II), used by a few users in "superloop mode", support usual MAC/PHY. I think it can be ported to any OS (see sources)

inconvenients : not free, hard to implement (i mean not obvious, heavy modifications, huge for 1 only designer). For me, too expensive for 100 products for just sending text by Ethernet.

I stayed interested if someone have succeeded in using LwIP with FreeRTOS with NIOS II on Altera devices.

Other suggestions : uCLinux (but need 8MB for kernel only), why not ?