RE: Zephyr/NCS crashes with SPIM and BLE active

rbmarcus — Fri, 21 Feb 2025 21:05:47 GMT

Hi,

Enabling debug configs resolves the problem, which unfortunately made it difficult to troubleshoot. SystemView would also overflow any time I attempted to run the program with the sensor active. Users on the Zephyr Discord server pointed me to the fact that this may be caused by deadlock, and that does seem to have been the root cause. At a high ODR (or a large data transfer), the system would be blocked by continuous interrupts, preventing it from handling any other threads. Since my sensor driver was already out-of-tree, I just updated it to receive bulk data from the sensor rather than initiating a SPI transaction for each sample in the sensor's FIFO buffer, and it works great now. In hindsight, a fetch call lasting 3-4ms probably wasn't too healthy for a system with the BLE stack and logging running on the same core.

RE: Zephyr/NCS crashes with SPIM and BLE active

Kazi Afroza Sultana — Thu, 30 Jan 2025 12:20:23 GMT

Hello,

Have you tried to debug the application to see where it crashes?

Thanks,

BR
Kazi