Hi,
I want to implement handler for undefined instruction fault. According to Cortex M4 documentation (ARM DUI 0553A subchapter 2.3.2 "Exception types") this fault leads to UsageFault exception. There is a HardFault_process weak function in SDK (S132 version 3.0.0 according to nrf_sdm.h) but I cannot found something like UsageFault_process.
Should I handle undefined instruction fault in HardFault_process? Or maybe I overlooked handler in SDK for UsageFault?
Best Regards,