liweiyan/shoe_mcu1.1.28_v5/bsp/bsp_pwm/bsp_pwm_led_ws2812.c

#include "sdk_common.h"
#include "SEGGER_RTT.h"
#include "nrf_drv_pwm.h"
#include "usr_config.h"
#include "system.h"
#include "nrf_gpio.h"
#include "bsp_pwm.h"

/********************** ±äÁ¿Çø *************************/

static nrf_drv_pwm_t m_pwm0 = NRF_DRV_PWM_INSTANCE(0);

static nrf_pwm_values_individual_t m_demo1_seq_values[]={
{0},{0},{0},{0},{0},{0}
};

static nrf_pwm_sequence_t const    m_demo1_seq =
{
    .values.p_individual = m_demo1_seq_values,
    .length              = NRF_PWM_VALUES_LENGTH(m_demo1_seq_values),
    .repeats             = 0,
    .end_delay           = 0
};

static void Pwm_init(void)
{
    nrf_drv_pwm_config_t const config0 =
    {
        .output_pins =
        {
            PIN_LED_CONTROL, // channel 0
            NRF_DRV_PWM_PIN_NOT_USED, 
            NRF_DRV_PWM_PIN_NOT_USED,
            NRF_DRV_PWM_PIN_NOT_USED
        },
        .irq_priority = APP_IRQ_PRIORITY_LOWEST,
        .base_clock   = NRF_PWM_CLK_125kHz,
        .count_mode   = NRF_PWM_MODE_UP,
        .top_value    = 1,
        .load_mode    = NRF_PWM_LOAD_INDIVIDUAL,
        .step_mode    = NRF_PWM_STEP_AUTO
    };
    APP_ERROR_CHECK(nrf_drv_pwm_init(&m_pwm0, &config0, NULL));
		
    (void)nrf_drv_pwm_simple_playback(&m_pwm0, &m_demo1_seq, 1,
                                      NRF_DRV_PWM_FLAG_LOOP);
		
}

static void cb_pwmWakeup(uint32_t t)
{
	  Pwm_init();
}

static void cb_pwmSleep(uint32_t t)
{
	  nrfx_pwm_uninit(&m_pwm0);
	  nrf_gpio_cfg_input(PIN_LED_CONTROL, NRF_GPIO_PIN_NOPULL);//IO 
}

void Pwm_Initialize(void){
	Pwm_init();
	Wakeup_Regist(cb_pwmWakeup);
  Sleep_Regist(cb_pwmSleep);
}