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Re: [lwip-users] Correctly manage cable disconnection and reconnection

From: Krzysztof Wesołowski
Subject: Re: [lwip-users] Correctly manage cable disconnection and reconnection
Date: Sat, 8 Dec 2012 11:47:43 +0100

In similar case with freertos i created timer to poll phy and called netif set link down on disconection and up on connection. It works well, even tcp ip connections can last through temporal disconnection.

On Dec 8, 2012 8:09 AM, "CORRADIN Michele" <address@hidden> wrote:
I'm new to LWIP and I'm trying to use it on a a board with an STM32F407 under ucOS III. I have just ported LWIP on ucOS III based on a project I found online, I fixed a couple of bugs and I make it running with fix IP and DHCP. The MAC driver is based on the ST one with some modifications for my micrel PHY.
It seems to work fine but I have some problems to correctly manage cable disconnection and re-connection.
Up to now I created a slow task that checks the PHY register to verify the connection status and if I see a cable disconnection and re-connection I restart the phi init in order to correctly set speed, .. but it's not clear to me what I should do to "re-init" LWIP.
Un to now I'm doing nothnig and it seems it work 80% of the time .. but sometimes it seems it's not able to correctly restart.
I'm just trying with a ping to see what happens.
thanks for the support

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