Re: [lwip-users] Porting lwIP to MPC5200

[Christiaan Simons]

address@hidden wrote on 18-10-2005
22:02:39:

> But I can't find how the whole lwIP is initialized. For example what is
the
> sequence to do until application can send data across network.
> Can someone give me a brief guide about this?

If you're going to use the 'raw api' this can be the init sequence:

#ifdef STATS
stats_init();
#endif
sys_init();
mem_init();
memp_init();
pbuf_init();
etharp_init();
ip_init();
udp_init();
tcp_init();
someif = netif_add(&netif_0, &ip_this_addr, &ip_net_mask, &ip_gw_addr,
                  NULL, net_if_init, ip_input);
netif_set_default(someif);
som_pcb = udp_new();

and call netif_set_up(someif);

Note this also depends on how you're going
to use or configure lwip (lwipopts.h).
E.g. no TCP -> no TCP init etc.

Also runtime IP configuration
(manual IP / DHCP selection) plays a role here.
Have a look at the contrib/ports to get an idea.

Bye,

Christiaan Simons

Hardware / Software Engineer
Axon Digital Design

+31 (0)13 511 66 66
+31 (0)13 511 41 51

http://www.axon.tv

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