This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

NRF91DK Board nRF52840 Unable to load/boot Zephyr RTOS

Hello, thanks for reviewing this.

I am trying to install and run Zephyr on the nRF52840 module that is on-board the nRF91 DK board. I have gone through the setup process and get a bus fault error when I flash it, and I have tried several samples.

For this topic lets go with me trying to get the bluetooth broadcast example
I ran `cmake -GNinja -DBOARD=nrf52_pca10090 ..` from a clean `build` directory, then ran `ninja`, finally running `ninja flash`. This results in a successful flash but the serial output is always:

```
***** BUS FAULT *****
  Instruction bus error
***** Hardware exception *****
Current thread ID = 0x2000007c
Faulting instruction address = 0xf806f0
Fatal fault in essential thread! Spinning...
```
Due to the DK board being relatively new, I haven't found anything on this issue. I can successfully run Zephyr samples on other various nRF52 DK boards, but not this one.
I checked my dependencies, that I have everything needed from zephyr for this, cross compiler, switch set to nRF52, etc


Where do I begin to discover the cause of this? Is it already known?

Thanks again

Parents Reply Children
No Data
Related