FreeRTOS + Softdevice HARDFAULT:ERROR:Hardfault PC:4

[Mehdi]

Hello,

I'm experiencing a hardware fault followed by a reset when running the nRF5_SDK_12.1.0_0d23e2a ble_app_hrs_freertos with the following configuration :

• PCA10040 V1.1.0 with nRF52832
• In sdk_config.h, I set NRF_LOG_ENABLED 1 and NRF_LOG_DEFERRED 0
• Eclipse with GCC 5.4.3
• Without optimization in Makefile ( -O0).

The error occurs very rapidly if I press button 2 ( two or three times) or every few seconds if nothing is pressed.

The logs shown on the terminal are :

SDH:INFO:sd_ble_enable: RAM START at 0x20002128

APP:INFO:Fast Adverstising

HARDFAULT:ERROR:Hardfault PC:4"

I've been digging into all the questions about freertos in the forum and I did not find a resolution. I was working on an already modified version of the example, put the DEBUG_NRF flag in Makefile, had the debugger stop and show vPortStartFirstTask() at port.c .... but I found no clue. I got back to a clean SDK version and retried the same configuration ( here before) and the problem was the same.

With optimization -O3, it does not appear on the example ( but still on my modified code).

Thank you for your interest.

[Susheel Nuguru]

Not sure if this is related, but i found a bug in the default sdk_config.h file. Are you using UART as debugging out? if so Please change the below value

#ifndef NRF_LOG_BACKEND_SERIAL_UART_BAUDRATE
//#define NRF_LOG_BACKEND_SERIAL_UART_BAUDRATE 30801920
#define NRF_LOG_BACKEND_SERIAL_UART_BAUDRATE 30924800
#endif