Hi!
I have tested stand-alone lwip with Nios2 standard example design, and it works fine. I implemented multiprocessor environment where is three standard nios 2 processors. One processor is going to handle interface to Internet and others have some other work. But stand-alone lwip doesn't work in Internet interface handler, sometimes it prints something like this "can't get mac-address, modify get_mac_address function...", and sometimes nothing, but telnet connection is not working. Have someone any idea where to start looking the reason for this behaviour? Thanks.. -CoolMan連結已複製
5 回應
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
Hi,
thank for your advices. But unfortunately it is not working. Is there possibility to be something wrong with my hardware connections, bdf-file or sopc-builder-file? Have you any idea? Thanks.. -CoolMan--- Quote Start --- originally posted by coolman@Oct 15 2004, 12:31 AM hi,
thank for your advices. but unfortunately it is not working. is there possibility to be something wrong with my hardware connections, bdf-file or sopc-builder-file?
have you any idea?
thanks..
-coolman
<div align='right'><{post_snapback}> (index.php?act=findpost&pid=2106)
--- quote end ---
--- Quote End --- Hi Coolman, same prob here.... using nios II ide 5.0.... quite frustrating as it is cheers, Danny
--- Quote Start --- originally posted by dannyjacobs+nov 4 2005, 10:27 am--><div class='quotetop'>quote (dannyjacobs @ nov 4 2005, 10:27 am)</div>
--- quote start ---
<!--quotebegin-coolman@Oct 15 2004, 12:31 AM hi,
thank for your advices. but unfortunately it is not working. is there possibility to be something wrong with my hardware connections, bdf-file or sopc-builder-file?
have you any idea?
thanks..
-coolman
<div align='right'><{post_snapback}> (index.php?act=findpost&pid=2106)
--- quote end ---
--- Quote End --- Hi Coolman, same prob here.... using nios II ide 5.0.... quite frustrating as it is cheers, Danny <div align='right'><{post_snapback}> (index.php?act=findpost&pid=10796)</div> [/b] --- Quote End --- Hi all, solved it... your should remove the if statement and just assign an own MAC. It works http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif Danny
