/**@brief Function for initializing the timer module and starting a timer with a handler that runs when it expires
*/
static void timer_init(void) {
APP_TIMER_DEF(timer_id); //Macro takes care of variable declaration
uint32_t err_code = app_timer_create(&timer_id, APP_TIMER_MODE_REPEATED, timer_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(timer_id, APP_TIMER_TICKS(REFRESH_TIME, APP_TIMER_PRESCALER), NULL);
APP_ERROR_CHECK(err_code);
}
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);
}
/**
* @brief Function for initalizing app timer.
*/
void start_app_timer(void)
{
ret_code_t err_code;
/* APP_TIMER definition for csense example. */
APP_TIMER_DEF(timer_0);
err_code = app_timer_create(&timer_0, APP_TIMER_MODE_REPEATED, csense_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(timer_0, APP_TIMER_TICKS_TIMEOUT, NULL);
APP_ERROR_CHECK(err_code);
}
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;
}
