DA14580 got reset immediately while connection is made

Hi Dialog team,

It's a really a wired issue I recently found. My device just got reset by itself when I tried to connect it.
My application is based on DA14580_BEACON_3.40.6. Please advise what else I should try for this issue.

Here are some findings for your reference:

1) it works well (connection is made successfully without reset by itself) when I put my device running without creating additional application timer.
2) this issue happens when this additional timer is created after either
a) disconnection [I use GATT command to trigger it] or
b) power cycling [save configuration in nonvolatile storage for next boot up to trigger it]

3) I tried to check the debugging trace via replacing platform_reset_func with my own wrapper 'wrap_platform_reset' as below, and found that
a) application function 'app_connection_func(struct gapc_connection_req_ind const *param)' is not even called before it reset by itself (I set breakpoint here too, but not stopped)
b) the breakpoint set at function 'wrap_platform_reset' is stopped and the call stack is just as below:

- wrap_platform_reset 0x20000CEE void f(unsigned int)
|- error 0xF2F2F2F2 param - unsigned int
- Reset_Handler 0x00000000 void f()


void wrap_platform_reset(uint32_t error)
{
#ifdef CFG_FORCE_WDRST
// Power up peripherals' power domain
SetBits16 (PMU_CTRL_REG, PERIPH_SLEEP, 0);
while (!(GetWord16 (SYS_STAT_REG) & PER_IS_UP));

spi_flash_enable (SPI_GPIO_PORT, SPI_CS_PIN); // take spi flash out of power down mode for next bootup
spi_flash_wait_till_ready ();
#else
ASSERT_WARNING(1);
#endif

platform_reset_func(error);
}