nRF52 HardFauld few seconds after calling sd_softdevice_enable

[ThierryC]

Hello,

I'm having systematically an HardFault interrupt ~10 seconds after calling sd_soft_device_enable(NULL, &fault_handler);

This occurs on my bootloader code, but not on my FW code. I try to figure out what could be different between the two, but I didn't find anything.

Here's the tools and versions I'm using :

nRF52832 IDE : CrossWorks 3.7 SD : S132v3.0 SDK12

Any idea what could be the reason for it ? I check similar thread, like this one, but my FPU seems to be set correctly on my compiler...

[Vidar Berg]

Hello,

Is this a custom bootloader? In that case, have you made sure that you're not accessing any restricted/blocked peripherals directly (HW availability with SD enabled), or if you may have been using reserved interrupt priorities for application events (use APP_IRQ_PRIORITY_x)?

You may also look at the call stack to see if there were any function calls prior to the hardfault.