Dear Simon,

Thanks for your quickly reply.

I could not find a well sample dhcp source code on lwip-1.4.0.rc1 and
contribute folder, could you please to point me where it is?

Thank you very much,
Thien

On Mon, Oct 25, 2010 at 5:19 PM, Simon Goldschmidt <[email protected]> wrote:

> You are completely violating lwIP threading: when using tcpip_input and the
> tcpip_thread, timers are called for you from that thread already. Also,
> dhcp_start() may *not* be called from any other thread than the tcpip_thread
> (as any other functions not explicitly allow). Please do read the little
> documentation we have and/or have a look at the examples.
>
> Simon
>
>
> PHAM ANH THIEN <[email protected]>:
> > Dear all,
> >
> > Has Anyone test get dynamic ip on lwip-1.4.0.rc1? I try to do it with
> this
> > code:
> >
> >     {
> >         /* Configure dynamic IP */
> >         vhPrintf("Configure dynamic IP...\n");
> >         netif_add(pEMAC_if, NULL, NULL, NULL, NULL, ethernetif_init,
> > tcpip_input);
> >         /* make it the default interface */
> >         netif_set_default(pEMAC_if);
> >         dhcp_start(pEMAC_if);
> >
> >         while (pEMAC_if->ip_addr.addr==0) {
> >             PSA_Services_WaitMs(DHCP_FINE_TIMER_MSECS);
> >             dhcp_fine_tmr();
> >             mscnt += DHCP_FINE_TIMER_MSECS;
> >             if (mscnt >= DHCP_COARSE_TIMER_SECS*1000) {
> >                 dhcp_coarse_tmr();
> >                 mscnt = 0;
> >             }
> >         }
> >
> >         vhPrintf("\nDone with DHCP");
> >         vhPrintf("\nAccquired IP = %d.%d.%d.%d\n",
> >                                 0xff & (pEMAC_if->ip_addr.addr),
> >                                 0xff & (pEMAC_if->ip_addr.addr >>8),
> >                                 0xff & (pEMAC_if->ip_addr.addr >> 16),
> >
> >                                  0xff & (pEMAC_if->ip_addr.addr >>24)
> >                                 );
> >     }
> >
> > but it could not work, the attached file is log message i got, it hang at
> > there! I notice that the same above code i used i can get dynamic ip with
> > lwip version 1.3.1.rc1.
> >
> > Thanks in advance!
> > Thien
>
> --
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