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Re: [lwip-users] Lwip 1.4.1 initialization


From: Sergio R. Caprile
Subject: Re: [lwip-users] Lwip 1.4.1 initialization
Date: Mon, 19 Mar 2018 09:30:13 -0300
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

Hi,
you have three things to worry about:
- the port
- the netif driver
- the initialization sequence

For the initialization sequence, afaik the right function to call in 1.4.1+ (for NO_SYS=0) is tcpip_init(), not just tcp_init().
http://www.nongnu.org/lwip/2_0_x/group__lwip__os.html#ga1f3a88b8df6ba3b9ed1c00e0a305e3db

For the port, I can't comment on multithreaded environments nor netconn besides setting NOSYS=0. Let's wait for Simon or one of the other experts to jump in. Anyway, they'll tell you, and with due reason, to use latest 2.0.x instead.
In the meantime, perhaps you could get some useful advice here:
http://lwip.wikia.com/wiki/LwIP_Platform_Developers_Manual

For the driver, follow advice given here:
http://lwip.wikia.com/wiki/Writing_a_device_driver




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