C++ (Cpp) low_power_pwm_init Examples

Example #1

File: main.c Project: lyncxy119/Sentry

static void pwm_init(void)
{
    uint32_t err_code;
    low_power_pwm_config_t low_power_pwm_config;

    APP_TIMER_DEF(lpp_timer_0);
    low_power_pwm_config.active_high = false;
    low_power_pwm_config.period = 220;
    low_power_pwm_config.bit_mask = BSP_LED_0_MASK;
    low_power_pwm_config.p_timer_id = &lpp_timer_0;

    err_code = low_power_pwm_init((&low_power_pwm_0), &low_power_pwm_config, pwm_handler);
    APP_ERROR_CHECK(err_code);
    err_code = low_power_pwm_duty_set(&low_power_pwm_0, 20);
    APP_ERROR_CHECK(err_code);

    APP_TIMER_DEF(lpp_timer_1);
    low_power_pwm_config.active_high = false;
    low_power_pwm_config.period = 200;
    low_power_pwm_config.bit_mask = BSP_LED_1_MASK;
    low_power_pwm_config.p_timer_id = &lpp_timer_1;

    err_code = low_power_pwm_init((&low_power_pwm_1), &low_power_pwm_config, pwm_handler);
    APP_ERROR_CHECK(err_code);
    err_code = low_power_pwm_duty_set(&low_power_pwm_1, 150);
    APP_ERROR_CHECK(err_code);

    APP_TIMER_DEF(lpp_timer_2);
    low_power_pwm_config.active_high = false;
    low_power_pwm_config.period = 100;
    low_power_pwm_config.bit_mask = BSP_LED_2_MASK;
    low_power_pwm_config.p_timer_id = &lpp_timer_2;

    err_code = low_power_pwm_init((&low_power_pwm_2), &low_power_pwm_config, pwm_handler);
    APP_ERROR_CHECK(err_code);
    err_code = low_power_pwm_duty_set(&low_power_pwm_2, 20);
    APP_ERROR_CHECK(err_code);

    err_code = low_power_pwm_start((&low_power_pwm_0), low_power_pwm_0.bit_mask);
    APP_ERROR_CHECK(err_code);
    err_code = low_power_pwm_start((&low_power_pwm_1), low_power_pwm_1.bit_mask);
    APP_ERROR_CHECK(err_code);
    err_code = low_power_pwm_start((&low_power_pwm_2), low_power_pwm_2.bit_mask);
    APP_ERROR_CHECK(err_code);
}

Example #2

File: led_softblink.c Project: CWBudde/Espruino

ret_code_t led_softblink_init(led_sb_init_params_t const * p_init_params)
{
    ret_code_t err_code;

    ASSERT(m_led_sb.led_sb_state == NRF_DRV_STATE_UNINITIALIZED);
    ASSERT(p_init_params);

    if ( (p_init_params->duty_cycle_max == 0)                               ||
         (p_init_params->duty_cycle_max <= p_init_params->duty_cycle_min)   ||
         (p_init_params->duty_cycle_step == 0)                              ||
         (p_init_params->leds_pin_bm == 0))
    {
        return NRF_ERROR_INVALID_PARAM;
    }



    memset(&m_led_sb, 0, sizeof(led_sb_context_t));
    memcpy(&m_led_sb.params, p_init_params, sizeof(led_sb_init_params_t));

    m_led_sb.is_counting_up = true;
    m_led_sb.duty_cycle     = p_init_params->duty_cycle_min + p_init_params->duty_cycle_step;
    m_led_sb.leds_is_on     = false;
    m_led_sb.bit_mask       = p_init_params->leds_pin_bm;

    APP_TIMER_DEF(led_softblink_timer);

    m_led_sb.pwm_config.active_high         = m_led_sb.params.active_high;
    m_led_sb.pwm_config.bit_mask            = p_init_params->leds_pin_bm;
    m_led_sb.pwm_config.p_port              = p_init_params->p_leds_port;
    m_led_sb.pwm_config.period              = PWM_PERIOD;
    m_led_sb.pwm_config.p_timer_id          = &led_softblink_timer;

    err_code = low_power_pwm_init( &m_led_sb.pwm_instance, &m_led_sb.pwm_config, led_softblink_on_timeout);

    if (err_code == NRF_SUCCESS)
    {
        m_led_sb.led_sb_state = NRF_DRV_STATE_INITIALIZED;
    }
    else
    {
        return err_code;
    }

    err_code = low_power_pwm_duty_set( &m_led_sb.pwm_instance, p_init_params->duty_cycle_min + p_init_params->duty_cycle_step);

    return err_code;
}