Hi all,
I have a project, and I noticed a while back that it would repeatedly
repeat its DHCP request.
Yesterday I had intended to solve this and also do some other
maintenance on the code. I started with the latter and... the DHCP
problem disappeared.
However, this morning it had started again.
Now you might say: it is supposed to re-validate the DHCP lease every
now and then. And I'd agree. However multiple times a second is WAY
too much.
I have now reverted the board to more stock "example" code: Way less
of my code in there. But it seems that now the problem only
happens after a while.
This is running on an RP2040 with hardwired ethernet through a
lan8720 PHY.
Anybody seen such behaviour? What was the problem then?
Why would LWIP restart the DHCP sequence? What could cause this?
Where would I look to find the code responsible?
Roger.
--
** r.e.wo...@bitwizard.nl ** https://www.BitWizard.nl/ ** +31-15-2049110 **
** Delftechpark 11 2628 XJ Delft, The Netherlands. KVK: 27239233 **
f equals m times a. When your f is steady, and your m is going down
your a is going up. -- Chris Hadfield about flying up the space shuttle.
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