Error: ***** USAGE FAULT *****

[Darn]

Hello there!

I'm developing an application that uses BLE to access the flash memory of a nRF52832, using RTOS Zephyr 1.10.0. The OS is Ubuntu.

JLinkRTTClient gives me this message after start reading flash memory:

***** USAGE FAULT *****
  Executing thread ID (thread): 0x20003e18
  Faulting instruction address:  0x20
  Illegal load of EXC_RETURN into PC
Fatal fault in thread 0x20003e18! Aborting.

There are also several threads running and I'm not sure which one gives me this error.

I'd like to know if there is any tool to trace back which thread is breaking.

I don't really know how to even start debugging this problem. I do welcome any idea or suggestion.

Thanks in advance.

[Vidar Berg]

Hello,

Please direct this question to the zephyr-devel or zephyr-users mailing list instead:

lists.zephyrproject.org/.../listinfo

You can also join #zephyrproject on freenode.net to get additional help.