s110 does not support the each of the four external buttons?

[GunMin]

 static app_button_cfg_t buttons[] =
{
    {29,   false, BUTTON_PULL, button_event_handler},
    {30,   false, BUTTON_PULL, button_event_handler},
	{26,   false, BUTTON_PULL, button_event_handler},
    {27,   false, BUTTON_PULL, button_event_handler},
			 
};

APP_BUTTON_INIT(buttons, sizeof(buttons) / sizeof(buttons[0]), BUTTON_DETECTION_DELAY, false);

If the setting two buttons, Works well.

But When the set of four buttons, Does not operate.

and Stop in the ble_stack_init.

What's the problem?

[GunMin]

Thank you for reply, I solved the problem.

This Comments was referenced.

link text

My program hangs on sd_softdevice_enable.

So I checked the LFCLKSRC setting.

NRF_CLOCK_LFCLKSRC_XTAL_20_PPM --> NRF_CLOCK_LFCLKSRC_RC_250_PPM_8000MS_CALIBRATION

As a result, Works well

[Stefan Birnir Sverrisson]

ok, so the problem had a different source. Great that you have resolved it. Thanks for the feedback.