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HKhan.4
Associate II
August 22, 2025
Question

LoRaWAN FUOTA

  • August 22, 2025
  • 1 reply
  • 665 views

Good day

 

I am having many troubles with implementing FUOTA on my Dev kit.

 

Firstly, I have downloaded the STM32Cube_FW_WL_V1.3.1 firmware. When i edit the script files to build using the latest cube ide (1.19.0) the build fails with many errors. I then downgraded to V1.17.0 and changed my script file. The Lorawan FUota single core project was able to build and i was able to flash it to my device.

 

When i attempt fuota on my nucleo-wl55jc1 device everything happens as expected. However, When the device switches from class A to Class C and begins to receive fragments I encounter a hard fault:

 

HKhan4_1-1755851808481.png

 

 

The server continues to send fragments but the device has essentially stopped. I did deep dive online and found that this is a known issue:

https://community.st.com/t5/stm32-mcus-wireless/stm32wl-fuota-single-core-not-working-on-fw-wl-v1-3-0-in-eu868/m-p/608263

 

Please could you add this to my enquiry I am losing hope that I may get FUOTA working.

 

Kind Regards,

Hassan

 

 

 

1 reply

STTwo-32
Technical Moderator
September 22, 2025

Hello @HKhan.4 

Could you please try to debug your application and find where this fault acquire. Also, have you followed the recommendations of this tutorial video.

Best Regards.

STTwo-32