LWIP doesn't work...

Hi Coolman,

Modify you mac_addr.c file to look something like this.

#include "alt_types.h"# include "io.h"# include "lwip/netif.h"
/*
* read_mac_address
*
* Read the MAC address in a board specific way
*
*/
err_t read_mac_address(struct netif *netif)
{
  err_t ret_code = ERR_IF;
  alt_u32 signature;
  /*
  * Our board has the MAC address stored at 0x7f000 in flash
  */# if defined(ALTERA_NIOS_DEV_BOARD_CYCLONE_1C20) ||
    defined(ALTERA_NIOS_DEV_BOARD_STRATIX_1S10) ||
    defined(ALTERA_NIOS_DEV_BOARD_STRATIX_1S10_ES) ||
    defined(ALTERA_NIOS_DEV_BOARD_STRATIX_1S40)
  signature = IORD_32DIRECT(0x7f0000, 0);
  if (signature != 0x00005afe)
  {
    fprintf(stderr, "\n-- FIX THIS -- Can't read the MAC address from flash -- FIX THIS -- .\nSetting MAC address to default FF:FF:FF:FF:FF:FF\n");
    netif->hwaddr_len = 6;
    netif->hwaddr = 0xFF;
    netif->hwaddr = 0xFF;
    netif->hwaddr = 0xFF;
    netif->hwaddr = 0xFF;
    netif->hwaddr = 0xFF;
    netif->hwaddr = 0xFF;
    ret_code = ERR_OK;    
  }
  else
  {
    /* Set MAC hardware address length */
    netif->hwaddr_len = 6;
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 4);
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 5);
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 6);
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 7);
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 8);
    netif->hwaddr = IORD_8DIRECT(0x7f0000, 9);
    ret_code = ERR_OK;
  }# else
  fprintf(stderr, "Not an Altera board.\nYou need to modify the function read_mac_address to set a MAC address for your board.\n");# endif
  return ret_code;
}

Here you simply replace the FF's with the correct MAC address.

NOTE this is an UGLY hack just to get it working. It CAN NOT / SHOULD NOT be used in a production system.

It should at least give you an idea of where to look for your problem