Probability of HARD FAULT occurring during the BLE connection process

RE: Probability of HARD FAULT occurring during the BLE connection process

666 — Thu, 09 Apr 2026 04:05:48 GMT

We are using nrfx_twim_init(...), where the interrupt priority is NRFX_TWIM_DEFAULT_CONFIG_IRQ_PRIORITY(7). Is it possible that this priority is too high and may affect MPSL init ?

Very urgent, looking forward to your advice！

RE: Probability of HARD FAULT occurring during the BLE connection process

666 — Tue, 07 Apr 2026 01:08:36 GMT

Because the reading function of I2C cannot be changed, I would like to solve this problem from other aspects. Do you have any good suggestions?

RE: Probability of HARD FAULT occurring during the BLE connection process

666 — Thu, 02 Apr 2026 01:12:03 GMT

Random and with a low probability.When will MPSL init ? The above phenomenon occurs during the communication process after Bluetooth connection.Why does I2C read affect it? Is it due to priority reasons

RE: Probability of HARD FAULT occurring during the BLE connection process

Simonr — Tue, 31 Mar 2026 05:36:53 GMT

When does the phenomena 1 occur versus phenomena 2? Or is it seemingly random that either of these occur. I think the MPSL init assert can be caused by the I2C reading data very often when the MPSL is trying to init.

Best regards,

Simon