OpenHarmony API目录-马育民老师

# 基础

1. [OpenHarmony API-usleep() 休眠指定的时间（单位：微秒）](https://www.malaoshi.top/show_1GW1wJDkVcQB.html "OpenHarmony API-usleep() 休眠指定的时间（单位：微秒）")

2. [OpenHarmony API-printf() 格式化输出字符串](https://www.malaoshi.top/show_1GW1wJHVmAqc.html "OpenHarmony API-printf() 格式化输出字符串")

3. [OpenHarmony API-SYS_RUN()](https://www.malaoshi.top/show_1GW1wJTxxksE.html "OpenHarmony API-SYS_RUN()")

4. [OpenHarmony API-APP_FEATURE_INIT()指定系统启动后自动执行的函数](https://www.malaoshi.top/show_1GW1wJZYEnuh.html "OpenHarmony API-APP_FEATURE_INIT()指定系统启动后自动执行的函数")

- [OpenHarmony API-SYS_RUN()与APP_FEATURE_INIT()区别](https://www.malaoshi.top/show_1GW1wJc1knvr.html "OpenHarmony API-SYS_RUN()与APP_FEATURE_INIT()区别")

# GPIO

### 函数

1. [OpenHarmony API-GpioInit() 初始化 GPIO 设备](https://www.malaoshi.top/show_1GW1wH597h1w.html "OpenHarmony API-GpioInit() 初始化 GPIO 设备")

2. [OpenHarmony API-IoSetFunc() 设置GPIO引脚功能](https://www.malaoshi.top/show_1GW1wHTm3p6I.html "OpenHarmony API-IoSetFunc() 设置GPIO引脚功能")

3. [OpenHarmony API-GpioSetDir() 设置 GPIO 引脚的方向](https://www.malaoshi.top/show_1GW1wI3ZWXeK.html "OpenHarmony API-GpioSetDir() 设置 GPIO 引脚的方向")

4. [OpenHarmony API-GpioSetOutputVal() 设置GPIO引脚输出电平值](https://www.malaoshi.top/show_1GW1wIZ2bFYU.html "OpenHarmony API-GpioSetOutputVal() 设置GPIO引脚输出电平值")

### 枚举值

1. [OpenHarmony API-WIFI_IOT_SUCCESS](https://www.malaoshi.top/show_1GW1wHDDivD9.html "OpenHarmony API-WIFI_IOT_SUCCESS")

3. [OpenHarmony API-WifiIotIoName 枚举GPIO 硬件引脚名称](https://www.malaoshi.top/show_1GW1wHKNXl2a.html "OpenHarmony API-WifiIotIoName 枚举GPIO 硬件引脚名称")

4. [OpenHarmony API-WifiIotGpioIdx 枚举GPIO 硬件引脚索引](https://www.malaoshi.top/show_1GW1wIVb9NbH.html "OpenHarmony API-WifiIotGpioIdx 枚举GPIO 硬件引脚索引")

- [OpenHarmony API-WifiIotIoName 和 WifiIotGpioIdx 区别](https://www.malaoshi.top/show_1GW1wISs2SQ4.html "OpenHarmony API-WifiIotIoName 和 WifiIotGpioIdx 区别")
 
5. [OpenHarmony API-WifiIotIoFuncGpio9 枚举 GPIO 硬件第 9 号引脚的所有功能](https://www.malaoshi.top/show_1GW1wHSaFlvB.html "OpenHarmony API-WifiIotIoFuncGpio9 枚举 GPIO 硬件第 9 号引脚的所有功能")

6. [OpenHarmony API-WifiIotGpioDir 枚举 GPOI 输入输出模式](https://www.malaoshi.top/show_1GW1wIJ82XwJ.html "OpenHarmony API-WifiIotGpioDir 枚举 GPOI 输入输出模式")

7. [OpenHarmony API-WifiIotGpioValue 枚举 GPIO 电平值](https://www.malaoshi.top/show_1GW1wIYVeFPR.html "OpenHarmony API-WifiIotGpioValue 枚举 GPIO 电平值")

# PWM

### 函数

- [OpenHarmony API-PwmInit()初始化 PWM 端口](https://www.malaoshi.top/show_1GW1wvGSGDmz.html "OpenHarmony API-PwmInit()初始化 PWM 端口")

- [OpenHarmony鸿蒙硬件-PwmStart()启动 PWM 信号输出](https://www.malaoshi.top/show_1GW1wvWkNgfB.html "OpenHarmony鸿蒙硬件-PwmStart()启动 PWM 信号输出")

- [OpenHarmony鸿蒙硬件-PwmStart()启动 PWM 信号输出-蜂鸣器](https://www.malaoshi.top/show_1GW1x3wUy4B9.html "OpenHarmony鸿蒙硬件-PwmStart()启动 PWM 信号输出-蜂鸣器")

- [OpenHarmony API-PwmStop()停止 PWM 通道输出](https://www.malaoshi.top/show_1GW1wvdPezSb.html "OpenHarmony API-PwmStop()停止 PWM 通道输出")

### 枚举值

- [OpenHarmony API-WifiIotPwmPort PWM 端口（通道） 的枚举值](https://www.malaoshi.top/show_1GW1wuP89JXG.html "OpenHarmony API-WifiIotPwmPort PWM 端口（通道） 的枚举值")

原文出处：http://malaoshi.top/show_1GW1wJ2YjebY.html