Button events are not triggered on NRF52840 Dongle

[Manju_rn]

The single button in the Dongle does not generate any events.  I have made all the relevant changes for the preprocessor for the usage with Dongle. Kindly let me know what to be modifed?

The buttons_handler in the below program does not get called

#include "zboss_api.h"
#include "zb_mem_config_custom.h"
#include "zb_error_handler.h"
#include "zigbee_helpers.h"

#include "app_timer.h"
#include "bsp.h"
#include "boards.h"
#include "nordic_common.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
static void buttons_handler(bsp_event_t evt)
{
    zb_ret_t zb_err_code;
    zb_uint32_t button;
    bsp_board_led_invert(BSP_BOARD_LED_1);
}

/**@brief Function for initializing LEDs and buttons.
 */
static zb_void_t leds_buttons_init(void)
{
    ret_code_t error_code;

    /* Initialize LEDs and buttons - use BSP to control them. */
    bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, buttons_handler);
}

int main(void)
{
    /* Initialize timers, loging system and GPIOs. */
    timers_init();
    log_init();
    leds_buttons_init();

    /* Set Zigbee stack logging level and traffic dump subsystem. */
    ZB_SET_TRACE_LEVEL(ZIGBEE_TRACE_LEVEL);
    ZB_SET_TRACE_MASK(ZIGBEE_TRACE_MASK);
    ZB_SET_TRAF_DUMP_OFF();

    /* Initialize Zigbee stack. */
    ZB_INIT("light_switch");

    /* Set device address to the value read from FICR registers. */
    zb_osif_get_ieee_eui64(ieee_addr);
    zb_set_long_address(ieee_addr);

    zb_set_network_ed_role(IEEE_CHANNEL_MASK);
    zigbee_erase_persistent_storage(ERASE_PERSISTENT_CONFIG);

    zb_set_ed_timeout(ED_AGING_TIMEOUT_64MIN);
    zb_set_keepalive_timeout(ZB_MILLISECONDS_TO_BEACON_INTERVAL(3000));
    // sleepy_device_setup();

    /* Initialize application context structure. */
    UNUSED_RETURN_VALUE(ZB_MEMSET(&m_device_ctx, 0, sizeof(light_switch_ctx_t)));
    
    /* Set default bulb short_addr. */
    m_device_ctx.bulb_params.short_addr = 0xFFFF;

    /* Register dimmer switch device context (endpoints). */
    ZB_AF_REGISTER_DEVICE_CTX(&dimmer_switch_ctx);

    /** Start Zigbee Stack. */
    zb_err_code = zboss_start_no_autostart();
    ZB_ERROR_CHECK(zb_err_code);

    while(1)
    {
        zboss_main_loop_iteration();
        UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
    }
}

[Manju_rn]

Okay - here is a bit of modification done - but strange bahaviour

1. After the .hex is loaded on the dongle, the Board LED lights up red, which means that the APP_BUTTON_PUSH is invoked automatically!  How?. Further pushing / release the dongle button has no affect, the led just stays red.  I was obviously expecting the corresponding color of the led to lit up when button is pressed / releases as handled in button_evt_handler

2. The detection delay in the method app_button_init (defined using ZB_MILLISECONDS_TO_BEACON_INTERVAL(154)) has a strange behaviour. The led lights up only when the value is 154 and above.

#define LIGHT_SWITCH_BUTTON_LONG_POLL_TMO   ZB_MILLISECONDS_TO_BEACON_INTERVAL(154)

static void button_evt_handler(uint8_t pin_no, uint8_t button_action)
{
    switch(pin_no)
    {
        case BSP_BOARD_BUTTON_0:
          if(button_action == APP_BUTTON_PUSH) 
          {
            bsp_board_led_on(BSP_BOARD_LED_1); // 1- Red
          }
          else if(button_action == APP_BUTTON_RELEASE) 
          {
            bsp_board_led_on(BSP_BOARD_LED_2); // 2- Green
          }
          break;
        default:
          bsp_board_led_on(BSP_BOARD_LED_3); // 3-Blue
          return;
    }
}


static void buttons_init(void)
{
    uint32_t err_code;

    static app_button_cfg_t buttons[] = 
    { 
        {BSP_BOARD_BUTTON_0, false, BUTTON_PULL, button_evt_handler}
    };

    err_code = app_button_init(buttons, ARRAY_SIZE(buttons), LIGHT_SWITCH_BUTTON_LONG_POLL_TMO);
    APP_ERROR_CHECK(err_code);

    err_code = app_button_enable();
    APP_ERROR_CHECK(err_code);
}  

int main(void)
{
    zb_ret_t       zb_err_code;
    zb_ieee_addr_t ieee_addr;

    log_init();
    app_timer_init();
    
    bsp_board_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS);
    buttons_init();