udp client -at atm32h753 board ethernet-lwip

[abeba.1]

hii

i have the stm32h753 nuclio board and i am trying to run udp client on the board and my pc will be UDP_SERVER , i am using udp_echoclient_connect() and  udp_echoclient_send()  functions, that are inside the files that is included in the project examples folder .

i attached all the relevant files in my project

i the main function i just want to send one udp message to the server (pc) using udp_echoclient_send() 

my main problem in the cpu goes to hardfault and i don't know why !! 

when i comment udp_echoclient_send()  the project runs and i can ping the board successfully , but when i uncomment udp_echoclient_send()  the cpu goes into hard fault

i attached the relevant files in my project .

i be glad for help :)

[Imen.D]

Hello @abeba.1​ ,

Have a look at this article: How to create project for STM32H7 with Ethernet and LwIP stack working.

You can also review the available UDP example on Github :

x-cube-azrtos-h7/Projects/STM32H735G-DK/Applications/NetXDuo at main · STMicroelectronics/x-cube-azrtos-h7 · GitHub

https://github.com/stm32-hotspot/STM32H7-LwIP-Examples/tree/main/STM32H743_Nucleo_ETH

Hope this helps you!

Imen

[abeba.1]

hii thanks for your reply :)

i changed and configured my design to work with freertos and i can ping the board successfully.

and added the code of sending udp data to my main function in the default task just like in the first link that you provided , and still i don't see the message appear in my udp terminal .

on the other hand i run udp client in python and i see the message in the udp terminal .

it feels to me that something i still messing in the code like the udp_send function is not really activating the send logic , i attached my main.c ,i be glad for help ' it suppose to work .

i can ping the board successfully , and i don't see any reason why it wont work

[LCE]

Maybe you post some relevant code snippets?

Anyway, I ran into hard faults with ethernet stuff when I forgot to adjust the descriptor memory area (linker script) according to the declared descriptor array size.

[Piranha]

Using the core lwIP API with RTOS requires doing the lwIP core thread locking. The following topic has some examples for how to do it:

https://community.st.com/s/question/0D53W00001sGiChSAK/cubemx-lwip-ethernetlinkthread-bug