Bearpi开发板HarmonyOS之PWM输出

wifiiot_pwm.h接口简介

1. 初始化PWM unsigned int PwmInit(WifiIotPwmPort port);
2. 取消初始化PWM unsigned int PwmDeinit(WifiIotPwmPort port);
3. 根据输入参数输出PWM unsigned int PwmStart(WifiIotPwmPort port, unsigned short duty, unsigned short freq);
4. 停止PWM输出 unsigned int PwmStop(WifiIotPwmPort port);

PWM驱动LED灯代码

#include 
#include 
#include "ohos_init.h"
#include 
#include "cmsis_os2.h"
#include "wifiiot_gpio.h"
#include "wifiiot_gpio_ex.h"
#include "wifiiot_pwm.h"

static void pwm2_func(void)
{
  // LED灯引脚配置成PWM输出
    GpioInit();
    IoSetFunc(WIFI_IOT_IO_NAME_GPIO_2,WIFI_IOT_IO_FUNC_GPIO_2_PWM2_OUT);
    GpioSetDir(WIFI_IOT_IO_NAME_GPIO_2,WIFI_IOT_GPIO_DIR_OUT);
    int i;
    
     //初时化PWM2
      PwmInit(WIFI_IOT_PWM_PORT_PWM2);
      while(1)
      {
         for (i = 0; i