Re: [lwip-users] DHCP, switch to static IP if no answer

[Bill Auerbach]

Simon,

 

Good points, yes.  I did handle RX packets in that loop in a way I didn’t want to get sidetracked into if I showed the real code.  So I should have mentioned that I did this.  I was trying to simplify things to simply show the lwIP API calls that could be used to achieve the desired result.  Hoping that helped out better than not replying at all. J

 

Bill

 

From: address@hidden [mailto:address@hidden On Behalf Of Simon Goldschmidt
Sent: Friday, June 24, 2011 4:40 PM
To: Mailing list for lwIP users
Subject: Re: [lwip-users] DHCP, switch to static IP if no answer

 

"Bill Auerbach" <address@hidden> wrote:

I used dhcp_start and then checked in a loop netif_is_up for a connection for 5 seconds.

Might be a bit late, but I do have to note that this can't work when using lwIP correctly, as it does not obey the lwIP threading requirements. You would have to use an lwIP timer or a callback to orctly implement the 5 second timeout instead of a loop. Or you would have to handle RX packets in that loop...

 

Simon