[En-Nut-Discussion] Slow booting when ethernet cable is not plugged in

[ennut at thezachariasgroup.com]

Paulo,
   I changed EMAC_LINK_LOOPS from 1,000,000 (90 Seconds) to 50,000 
(4.5 Seconds) and things work well.
I changed it in nut\arch\arm\dev\at91_emac.c . I didn't know it could 
be done in the configurator.

If you use DHCP to obtain an IPAddress you might consider putting 
that code in a separate thread similar to the stripped down code I've 
included below.
This is especially useful after a power failure and the unit needs to 
provide functionality immediately.

Please excuse the non-conforming coding style.


u_char ucNetworkStatus;

THREAD(EthernetConnectivity, arg)
{
   u_char ucWaitingForTaskCompletion;

   ucNetworkStatus = 0;

   NutRegisterDevice(&DEV_ETHER, 0, 0);     // Register Ethernet controller.

   printf("\n\r Configure %s...", DEV_ETHER_NAME);

   ucWaitingForTaskCompletion = 1;

   while (ucWaitingForTaskCompletion)
   {
     if (NutDhcpIfConfig(DEV_ETHER_NAME, mac, 15000))
     {
       NutSleep(60000); // Wait 60 Seconds and try again
     }
     else // We were configured
     {
       ucNetworkStatus = 1;
       ucWaitingForTaskCompletion = 0;
     }
   }

   while (1)
   {
     NutSleep(6000000); //
   }
}




Paulo Silva schrieb:
 > I compiled ethernut and httpd app., for this board, and I saw 
that, if I did not insert ethernet cable it does not boot, did you 
find this too or Is it  a bug in my software or hardware? As this is 
a test I am using version 4.3.3 alpha.
 >