Hello,
I am trying to get UDP (transmitting and receiving) with lwIP working on an S32K344EVB-S172 project of mine. I can successfully transmit and receive UDP packets (through port 7, the echo port) in the NXP-provided lwIP example (lwip_s32k344), along with pinging. However, I am entirely unable to get any traffic whatsoever (even an ARP) in my own project (not the example project).
The configuration of all the relevant clocks, pins, and peripherals (tcipip_stack, GMAC, MCU, PIT, etc.) are pretty much identical. The same goes for the code — I copied the initialization code from the example verbatim.
Since I wasn't able to get it to work in my project, I figured I'd make a separate, minimal reproducible example project from the ground up which has the same setup and also doesn't work. See the attached project (UDP_Ground_Up.zip).
Here are some things which I've observed in the non-working project:
I've also attached all my version information in case it is relevant (see ver_info.txt).
Thank you,
Elliot.
@gormae1Have you fixed the issue with your example project? I'm facing the same problem on Wireshark—no frames. Please share the solution if you've found it.
It will be very difficult to find problems with the information you provide. so I recommend you to use the NXP-provided lwIP example and customize it to suit your purpose
Hi,
If it's not possible to look at the attached example, would it be possible to get an NXP example of UDP sending (not echo) with lwIP and in NoSys on the K344?
Thanks,
Elliot