Re: [lwip-users] LWIP connection problem

[Jan Menzel]

Hi!
        What you're reporting sounds to me as if you're missing to check the
line status or if you link status check is not working properly. Usually
you've to poll the phy and react to link status changes by updating the
emac configuration and informing lwip if a link is available or not.

        Jan

On 26.08.2018 16:54, Sadegh916 wrote:
> Hi
> I have an STM32F439 Evaluation Board. I want to connect this board to my PC
> via ethernet cable. I am using LWIP TCP/IP stack.
> I can send and receive data between my PC and evaluation board. But there is
> a problem:
> When I reset the evaluation board For Stablishing the connection, the
> ethernet cable must be connected to my PC Otherwise the connection will not
> be established. How can I resolve it?
> 
> 
> 
> --
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> 
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