nRF52 SDK13 fall

[Mikhail]

When I start program, my program fall down to

__WEAK void app_error_fault_handler(uint32_t id, uint32_t pc, uint32_t info)
{
NRF_LOG_ERROR("Fatal\r\n");
NRF_LOG_FINAL_FLUSH();
// On assert, the system can only recover with a reset.
#ifndef DEBUG
NRF_LOG_INFO("Hit weak handler\r\n");
NVIC_SystemReset();
#else
app_error_save_and_stop(id, pc, info);
#endif // DEBUG
}

with next parameters: id- 0x00004001 pc-0x00000000 info- 0x20007918

What reason of falling my code?

[Hung Bui]

Hi Mikhail,

Please look inside error_info pointer to find the line_num, file_name and err_code of what causes the error. You may need to add "DEBUG" in the C/C++ preprocessor symbols setting.

[Mikhail]

Sorry, I can't understand You how to do it. I have info pointer is 0x20008438 What will I do next?

[Hung Bui]

You need to add DEBUG define, and set optimization level to 0. Please follow this guide.

After that you can add a breakpoint in app_error_handler() (or where app_error_fault_handler is called), and you can find information about

error_info_t error_info =
{
    .line_num    = line_num,
    .p_file_name = p_file_name,
    .err_code    = error_code,
};