Hi
Which version of CubeMx? And are you using their ethernetif.c or did you
get it somewhere else? I don't remember when it was fixed but old
versions had the exact problem Sergio mentioned. Search for anything
related to ST from a couple of years ago and you'll definitely find it
BR /Jens
On 2017-02-10 14:09, Vass Szabolcs wrote:
Thank You for Your response.
So I'm using the lwip 1.4.1 stack. To configure my controller I used
the CubeMx from ST. The Cube Mx generated this library to my project
(in 2016). I read that the ST is working on next upgrade of Cube Mx
that will contain the lwip 2.0.
The problem is that my project is very large and complex so I wouldn't
like to exchange my lwip libraries.
In my project I need to modify in the lwip function to work properly
the binary upload, and some other features.
So please help me where I can find the solution within this stack?
Kind regards,
Szabolcs
2017.02.10. 14:33 keltezéssel, Sergio R. Caprile írta:
The crashes are your responsibility. Or your vendor's...
If you clearly indicate which API are you using and how you use the
stack, someone here might guide you.
The dup acks are indicating your lwIP is not seeing some expected
frames. This is usually a driver fault. Most common culprit is that
the developers forget to extract all frames off the eth chip when
handling a frame rx indication. When traffic is low, everything is
fine, but as soon as network traffic is high and two or more frames
arrive in the service period, one of them is left sleeping and
eventually lost. If that one which is lost is the one you care about,
the stack will ask for it again, and that is what you are seeing.
Search the list, there's someone else with the very same problem this
week, and I bet is also ST-related. My bet is strong on the driver. I
just can't wait to be right...
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