Re: [lwip-users] how to know PHY link status ?

[Mrutyunjay]

Thanks  

I did refer to PHY data sheet ad did following in my code for other to refer 

//Check Ethernet status
    #ifdef DEBUG
    {
      unsigned long  phy_mr1,phy_mr18;

      phy_mr1 =EthernetPHYRead(ETH_BASE, PHY_MR1 );
      phy_mr18=EthernetPHYRead(ETH_BASE, PHY_MR18);

      //rt_kprintf("\n PHY_MR1: %x , PHY_MR18: %x",phy_mr1,phy_mr18 );

      rt_kprintf("\n Eth0: ");
      if( phy_mr1 & PHY_MR1_LINK   )
      {
        rt_kprintf("Link UP ");
        if( phy_mr18 & PHY_MR18_RATE   )
          rt_kprintf("100 Mbps "); 
        else
        rt_kprintf("10 Mbps ");

        if( phy_mr18 & PHY_MR18_DPLX   )
          rt_kprintf("Full \n"); 
        else
          rt_kprintf("Half \n");
      }
      else
        rt_kprintf("Link DOWN \n");
    } 
    #endif 


Regards,
Mrutyunjay B Patel

On Tue, Oct 12, 2010 at 1:42 PM, Kieran Mansley <address@hidden> wrote:

On Tue, 2010-10-12 at 13:01 +0530, Mrutyunjay wrote:
> hi,
> need interface to know status of Link
> in OS based LwIP 1.3.2 !
>
> 1. is Ethernet cable connected(hub/switch).
> 2. What is Link speed is connected at
>    a. 10mbps/100mbps.
>    b. full-duplex or half duplex.
> 3. how to enable or disable Auto-Negotiations.

None of that information is available through IP and so it isn't
something that lwIP provides.  You need to access your hardware or
possibly OS if it provides this status.

Kieran

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