FDS Problem

[sara]

Hello,

What I want to do is to store custom data to flash using FDS in "disconnected" event.

When I try to write the data in "disconnected" event, the write_flag is never raised. Is there any solutions to help me to solve this problem?

[Updated on 2017/4/25]

After some tests that I found the custom data is written successfully. However, the system does NOT work well because of the "while" function.

static void my_fds_evt_handler(fds_evt_t const * const p_fds_evt)
{
    switch (p_fds_evt->id)
    {
        case FDS_EVT_INIT:
            if (p_fds_evt->result != FDS_SUCCESS)
            {
                // Initialization failed. --> system reset
            }
            break;
				case FDS_EVT_WRITE:
						if (p_fds_evt->result == FDS_SUCCESS)
						{
							write_flag = 1; // << entered!!!!
						}
						
						break;
						
				case FDS_EVT_UPDATE:
					if (p_fds_evt->result == FDS_SUCCESS)
						{
							write_flag = 1;
							
							// reset
							sd_nvic_SystemReset();
						}
						break;
        default:
            break;
    }
}


static void fds_write()
{
	uint32_t err_code;

		err_code =fds_test_write();
		APP_ERROR_CHECK(err_code);
		//wait until the write is finished. 
		while (write_flag==0);  // <<--------- Never leave this function.
		err_code = fds_read();
}

Thanks.

Sara

[Petter Myhre]

You are calling fds_write() from the same interrupt context as the my_fds_evt_handler() would be called from, so this will not work.

If you just set a flag when you get the BLE_GAP_DISCONNECTED_EVENT, and call fds_write() from the main loop if it is set, it should work.

[sara]

Understood, thanks.