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wifiiot_pwm-h.md 6.29 KB

# wifiiot\_pwm.h<a name="ZH-CN_TOPIC_0000001055075075"></a>

## **Overview**<a name="section979751764191856"></a>

**Related Modules:**

[Wifiiot](Wifiiot.md)

**Description:**

Declares the PWM interface functions.

These functions are used for PWM initialization, deinitialization, and signal output.

**Since:**

1.0

**Version:**

1.0

## **Summary**<a name="section1964347332191856"></a>

## Enumerations<a name="enum-members"></a>

<a name="table1096365732191856"></a>
<table><thead align="left"><tr id="row57998761191856"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p1752471129191856"><a name="p1752471129191856"></a><a name="p1752471129191856"></a>Enumeration Name</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p393234153191856"><a name="p393234153191856"></a><a name="p393234153191856"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row370422970191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p240232763191856"><a name="p240232763191856"></a><a name="p240232763191856"></a><a href="Wifiiot.md#ga2ecbd0ab9636fedd354de7447056df29">WifiIotPwmClkSource</a> { <a href="Wifiiot.md#gga2ecbd0ab9636fedd354de7447056df29adaadc6f6a5e89f7d1a8fa55d8cc89d0f">WIFI_IOT_PWM_CLK_160M</a>, <a href="Wifiiot.md#gga2ecbd0ab9636fedd354de7447056df29a610c246fc1c129b3c223884b5f644888">WIFI_IOT_PWM_CLK_XTAL</a>, <a href="Wifiiot.md#gga2ecbd0ab9636fedd354de7447056df29a09394bc5af28cf9e01eb6cca9bf8e633">WIFI_IOT_PWM_CLK_MAX</a> }</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1219299254191856"><a name="p1219299254191856"></a><a name="p1219299254191856"></a>Enumerates PWM clock sources. </p>
</td>
</tr>
<tr id="row831047131191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p181037701191856"><a name="p181037701191856"></a><a name="p181037701191856"></a><a href="Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7">WifiIotPwmPort</a> { &nbsp;&nbsp;<a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7a99047f09c031299d4c68c0eb2dc523e9">WIFI_IOT_PWM_PORT_PWM0</a> = 0, <a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7afe267b92864e4b1bb171724d8f555922">WIFI_IOT_PWM_PORT_PWM1</a> = 1, <a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7ac6530394f6bab8fecc8cf7417646c66b">WIFI_IOT_PWM_PORT_PWM2</a> = 2, <a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7a0b16863a2291abfac01581c15e184126">WIFI_IOT_PWM_PORT_PWM3</a> = 3, &nbsp;&nbsp;<a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7aa6d4371910a891288c6181ffd358b7fb">WIFI_IOT_PWM_PORT_PWM4</a> = 4, <a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7a3f7666b782bb361e556e8062b4ff80aa">WIFI_IOT_PWM_PORT_PWM5</a> = 5, <a href="Wifiiot.md#ggab3518ce878df4a40d614e88a6f81dea7a24bfb3984d6e6e91f897e20e267ada3b">WIFI_IOT_PWM_PORT_MAX</a> }</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p361725082191856"><a name="p361725082191856"></a><a name="p361725082191856"></a>Enumerates PWM ports. </p>
</td>
</tr>
</tbody>
</table>

## Functions<a name="func-members"></a>

<a name="table952742221191856"></a>
<table><thead align="left"><tr id="row1645917653191856"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p1909192175191856"><a name="p1909192175191856"></a><a name="p1909192175191856"></a>Function Name</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p790177599191856"><a name="p790177599191856"></a><a name="p790177599191856"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row734243333191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1377107128191856"><a name="p1377107128191856"></a><a name="p1377107128191856"></a><a href="Wifiiot.md#ga27d50a2258388ba88ed35581096fb5eb">PwmInit</a> (<a href="Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7">WifiIotPwmPort</a> port)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p2120948831191856"><a name="p2120948831191856"></a><a name="p2120948831191856"></a>unsigned int&nbsp;</p>
<p id="p596003761191856"><a name="p596003761191856"></a><a name="p596003761191856"></a>Initializes a PWM device. </p>
</td>
</tr>
<tr id="row1379300673191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p2051943474191856"><a name="p2051943474191856"></a><a name="p2051943474191856"></a><a href="Wifiiot.md#gac63da03016596aed4234e9c4053c15b9">PwmDeinit</a> (<a href="Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7">WifiIotPwmPort</a> port)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1203808215191856"><a name="p1203808215191856"></a><a name="p1203808215191856"></a>unsigned int&nbsp;</p>
<p id="p1009878953191856"><a name="p1009878953191856"></a><a name="p1009878953191856"></a>Deinitializes a PWM device. </p>
</td>
</tr>
<tr id="row1168419637191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p292946667191856"><a name="p292946667191856"></a><a name="p292946667191856"></a><a href="Wifiiot.md#gae853022c27750fcdb9a2c60653761afe">PwmStart</a> (<a href="Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7">WifiIotPwmPort</a> port, unsigned short duty, unsigned short freq)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1308573525191856"><a name="p1308573525191856"></a><a name="p1308573525191856"></a>unsigned int&nbsp;</p>
<p id="p1307967811191856"><a name="p1307967811191856"></a><a name="p1307967811191856"></a>Outputs PWM signals based on the input parameters. </p>
</td>
</tr>
<tr id="row1692903580191856"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p607057869191856"><a name="p607057869191856"></a><a name="p607057869191856"></a><a href="Wifiiot.md#ga158474c4e73c1e557352c12cc31a154f">PwmStop</a> (<a href="Wifiiot.md#gab3518ce878df4a40d614e88a6f81dea7">WifiIotPwmPort</a> port)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p725693650191856"><a name="p725693650191856"></a><a name="p725693650191856"></a>unsigned int&nbsp;</p>
<p id="p455394764191856"><a name="p455394764191856"></a><a name="p455394764191856"></a>Stops the PWM signal output. </p>
</td>
</tr>
</tbody>
</table>

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提交于 2020-09-08 10:08 . add OpenHarmony 1.0 baseline

wifiiot_pwm.h

Overview

Related Modules:

Description:

Declares the PWM interface functions.

These functions are used for PWM initialization, deinitialization, and signal output.

Since:

1.0

Version:

1.0

Summary

Enumerations

Enumeration Name	Description
WifiIotPwmClkSource { WIFI_IOT_PWM_CLK_160M, WIFI_IOT_PWM_CLK_XTAL, WIFI_IOT_PWM_CLK_MAX }	Enumerates PWM clock sources.
WifiIotPwmPort { WIFI_IOT_PWM_PORT_PWM0 = 0, WIFI_IOT_PWM_PORT_PWM1 = 1, WIFI_IOT_PWM_PORT_PWM2 = 2, WIFI_IOT_PWM_PORT_PWM3 = 3, WIFI_IOT_PWM_PORT_PWM4 = 4, WIFI_IOT_PWM_PORT_PWM5 = 5, WIFI_IOT_PWM_PORT_MAX }	Enumerates PWM ports.

Functions

Function Name	Description
PwmInit (WifiIotPwmPort port)	unsigned int Initializes a PWM device.
PwmDeinit (WifiIotPwmPort port)	unsigned int Deinitializes a PWM device.
PwmStart (WifiIotPwmPort port, unsigned short duty, unsigned short freq)	unsigned int Outputs PWM signals based on the input parameters.
PwmStop (WifiIotPwmPort port)	unsigned int Stops the PWM signal output.

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