At present, our device products use nrf52840, and the official component package used is V15.2.0. I found that using Bluetooth and other Bluetooth long connections will reset after about 5 hours. I write the official log record in the app_error_fault_handler function. In the external flash, but this function did not come in before the reset, I am 100% sure that the external flash reads and writes normally, because there is a simple app_error_fault_handler function that records information here. The important thing is that I recorded some stack information to the external flash in the hardware error interrupt function, but it did not come in. There is also a very important information. If the Bluetooth is not connected, the test has not been reset for two days. Please original Help analyze whether the reset register value 0x00000008 is caused by an internal cpu exception
