RE: Using BSP long push event to enter system off mode

Jimmy Wong — Thu, 14 Mar 2019 11:06:10 GMT
HI,
You can do this code. Create 2 app_timer as below.
        err_code = app_timer_create(&m_app_shutdown_timer_id,
                                    APP_TIMER_MODE_SINGLE_SHOT,
                                    long_press_button_shutdown_timeout_handler);
        APP_ERROR_CHECK(err_code);
        
        err_code = app_timer_create(&m_button_long_press_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    button_timer_handler);
        APP_ERROR_CHECK(err_code);
        
static void long_press_button_shutdown_timeout_handler(void *unused)
{
        uint32_t err_code;
        UNUSED_PARAMETER(unused);

        drv_ssd1306_power_off();

        err_code = app_timer_stop_all();
        APP_ERROR_CHECK(err_code);

        delay_ms(10);

        nrf_gpio_cfg_sense_input(CINETIC_BUTTON_PIN, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);

        nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF);
}

static void button_timer_handler(void * p_context)
{
        uint32_t err_code;

        UNUSED_PARAMETER(p_context);
        NRF_LOG_INFO("Long Press button count %d", m_button_ticks_count);
        m_button_ticks_count++;

        if (m_button_ticks_count > LONG_PRESS_BUTTON_COUNT)
        {
                m_shutdown_is_request = true;

                app_button_disable();
                err_code = app_timer_stop(m_button_long_press_timer_id);
                APP_ERROR_CHECK(err_code);

                NRF_LOG_INFO("Prepare to shutdown the device");
                err_code = app_timer_start(m_app_shutdown_timer_id, LONG_PRESS_BUTTON_SHUTDOWN_TIMER_INTERVAL, NULL);
                APP_ERROR_CHECK(err_code);
        }
}

static void button_evt_handler(uint8_t pin_no, uint8_t button_action)
{
        uint32_t err_code;
        static uint8_t current_long_push_pin_no;

        switch (pin_no) {
        case KEY_BUTTON_PIN:
        {
                switch (button_action)
                {
                case APP_BUTTON_PUSH:
                        m_press_is_button = true;
                        if (m_button_ticks_count == 0)
                        {
                                err_code = app_timer_start(m_button_long_press_timer_id, LONG_PRESS_BUTTON_TIMER_INTERVAL, NULL);
                                APP_ERROR_CHECK(err_code);
                                m_button_ticks_count++;
                        }