mirror of
https://gitee.com/Vancouver2017/luban-lite.git
synced 2025-12-16 17:18:56 +00:00
333 lines
44 KiB
HTML
333 lines
44 KiB
HTML
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.1">
|
||
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="测试环境 硬件 开发板 示波器，用于观察输出 PWM 信号的波形 软件 PC 端的串口终端软件，用于 PC 和开发板进行串口通信 RT-Thread 系统自带的 pwm 命令行工具 软件配置 打开 RT-Thread 系统的 PWM 设备驱动框架，会在启动时注册生成 pwm 命令。 动态配置 PWM 使用 pwm 命令来配置某一通道的步骤如下所示，以通道 3 为例： 列示所有 pwm 相关命： ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="topic"/><meta name="DC.relation" content="../../../topics/sdk/pwm/pwm_user_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/pwm/pwm_debug_lite.html"/><meta name="DC.relation" content="../../../topics/sdk/pwm/pwm_design_lite.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2025-05-16"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="id"/><meta name="DC.language" content="zh-CN"/><title>测试指南</title><!-- Generated with build number 2025051600. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="id-d3752e6334"/><meta name="wh-source-relpath" content="topics/sdk/pwm/pwm_test_lite.dita"/><meta name="wh-out-relpath" content="topics/sdk/pwm/pwm_test_lite.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2024041900"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2024041900"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250519091401"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2024041900"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250519091401"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2024041900"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2024041900"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-styles-web-internal.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/notes.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-common.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-images.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/footnote.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-highlight-changes.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/search-in-header.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/topic-body-list.css?buildId=2024041900"/></head>
|
||
|
||
<body id="id" class="wh_topic_page frmBody">
|
||
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
||
跳转到主要内容
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<header class="navbar navbar-default wh_header">
|
||
<div class="container-fluid">
|
||
<div xmlns:whc="http://www.oxygenxml.com/webhelp/components" class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
||
<div class="wh_logo_and_publication_title_container">
|
||
<div class="wh_logo_and_publication_title">
|
||
|
||
<a href="https://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo.png" alt=" RTOS SDK 使用指南 SDK 指南文件 "/></a>
|
||
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"> <span class="ph mainbooktitle">RTOS SDK 使用指南</span> <span class="ph booktitlealt">SDK 指南文件</span> </span></a></div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
||
|
||
|
||
|
||
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
||
|
||
|
||
|
||
</div></div>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="container-fluid" id="wh_topic_container">
|
||
<div class="row">
|
||
|
||
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
||
|
||
<div data-tooltip-position="bottom" class=" wh_breadcrumb "><ol class="d-print-none"><li><span class="home"><a href="../../../index.html"><span>主页</span></a></span></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li><li><div class="topicref" data-id="concept_nww_hzh_pzb"><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/pwm/pwm_user_guide.html">PWM 使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/pwm/pwm_test_lite.html">测试指南</a></div></div></li></ol></div>
|
||
|
||
|
||
|
||
<div class="wh_right_tools">
|
||
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
||
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
||
<div class=" wh_navigation_links "><span id="topic_navigation_links" class="navheader">
|
||
|
||
<span class="navprev"><a class="- topic/link link" href="../../../topics/sdk/pwm/pwm_debug_lite.html" title="调试指南" aria-label="上一主题: 调试指南" rel="prev"></a></span>
|
||
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/pwm/pwm_design_lite.html" title="设计说明" aria-label="下一主题: 设计说明" rel="next"></a></span> </span></div>
|
||
|
||
|
||
|
||
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
||
|
||
<button type="button" id="wh_toc_button" class="custom-toggler navbar-toggler collapsed wh_toggle_button navbar-light" aria-expanded="false" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc">
|
||
<span class="navbar-toggler-icon"></span>
|
||
</button>
|
||
</div>
|
||
|
||
</nav>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="wh_content_area">
|
||
<div class="row">
|
||
|
||
<nav id="wh_publication_toc" class="col-lg-3 col-md-3 col-sm-12 d-md-block d-none d-print-none" aria-label="Table of Contents Container">
|
||
<div id="wh_publication_toc_content">
|
||
|
||
<div class=" wh_publication_toc " data-tooltip-position="right"><span class="expand-button-action-labels"><span id="button-expand-action" role="button" aria-label="Expand"></span><span id="button-collapse-action" role="button" aria-label="Collapse"></span><span id="button-pending-action" role="button" aria-label="Pending"></span></span><ul role="tree" aria-label="Table of Contents"><li role="treeitem"><div data-tocid="revinfo_linux-d3752e463" class="topicref" data-id="revinfo_linux" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/revinfo/revinfo_rtos.html" id="revinfo_linux-d3752e463-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e480" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e480-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d3752e480-link">SDK 编译</a><div class="wh-tooltip"><p class="shortdesc">介绍不同编译环境下 SDK 的详细编译流程。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e604" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e604-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/sdk-usage.html" id="id-d3752e604-link">使用指南</a><div class="wh-tooltip"><p class="shortdesc">命令详解，编译选项，镜像和分区配置，添加应用和驱动等的详细使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d3752e1004" class="topicref" data-id="concept_rcx_czh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_rcx_czh_pzb-d3752e1004-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d3752e1004-link">应用场景</a><div class="wh-tooltip"><p class="shortdesc">描述了 SDK 在不同应用场景中的配置和使用，包括系统更新、OTA、安全方案等。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e1848" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e1848-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d3752e1848-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">CTP、U 盘、SD 卡、有线和无线网络</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2022" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2022-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d3752e2022-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">主要描述板卡的各项配置，使 SDK 的环境和板卡匹配，并确保 SDK 编译后的固件能够在板子上正常运行。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d3752e2418" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d3752e2418-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d3752e2418-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="_0-d3752e2435" class="topicref" data-id="_0" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action _0-d3752e2435-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/boot/lite_boot_direct.html" id="_0-d3752e2435-link">启动引导</a><div class="wh-tooltip"><p class="shortdesc">启动引导程序 Bootloader 可以实现加载启动应用程序、 烧录和升级功能。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-system-d3752e2619" class="topicref" data-id="chapter-system" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-system-d3752e2619-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-system.html" id="chapter-system-d3752e2619-link">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-memory-d3752e3709" class="topicref" data-id="chapter-memory" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-memory-d3752e3709-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html" id="chapter-memory-d3752e3709-link">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、<span class="ph">PSRAM、</span>SPI NAND、SPI NOR 等存储模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_mcc_32s_nbc-d3752e4043" class="topicref" data-id="concept_mcc_32s_nbc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mcc_32s_nbc-d3752e4043-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d3752e4043-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="concept_nww_hzh_pzb-d3752e5544" class="topicref" data-id="concept_nww_hzh_pzb" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action concept_nww_hzh_pzb-d3752e5544-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d3752e5544-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="can-d3752e5564" class="topicref" data-id="can" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action can-d3752e5564-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/can/can_user_guide.html" id="can-d3752e5564-link">CAN 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e5648" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e5648-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/cap/cap_user_guide.html" id="id-d3752e5648-link">CAP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e5718" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e5718-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/qep/qep_user_guide.html" id="id-d3752e5718-link">QEP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="cir-d3752e5802" class="topicref" data-id="cir" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action cir-d3752e5802-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/cir/cir_user_guide.html" id="cir-d3752e5802-link">CIR 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="gpai-user-guide-d3752e5928" class="topicref" data-id="gpai-user-guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action gpai-user-guide-d3752e5928-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/gpai/gpai_user_guide.html" id="gpai-user-guide-d3752e5928-link">GPAI 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e6012" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e6012-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/gpio/gpio_user_guide.html" id="id-d3752e6012-link">GPIO 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="i2c_user_guide-d3752e6096" class="topicref" data-id="i2c_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action i2c_user_guide-d3752e6096-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/i2c/i2c_user_guide.html" id="i2c_user_guide-d3752e6096-link">I2C 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e6208" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e6208-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/psadc/psadc_user_guide.html" id="id-d3752e6208-link">PSADC 使用指南</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d3752e6292" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d3752e6292-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_user_guide.html" id="id-d3752e6292-link">PWM 使用指南</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="id-d3752e6306" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_config_lite.html" id="id-d3752e6306-link">参数配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d3752e6320" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_debug_lite.html" id="id-d3752e6320-link">调试指南</a></div></div></li><li role="treeitem" class="active"><div data-tocid="id-d3752e6334" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_test_lite.html" id="id-d3752e6334-link">测试指南</a></div></div></li><li role="treeitem"><div data-tocid="id-d3752e6348" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_design_lite.html" id="id-d3752e6348-link">设计说明</a></div></div></li><li role="treeitem"><div data-tocid="id-d3752e6362" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_faq.html" id="id-d3752e6362-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="rtp-user-guide-d3752e6376" class="topicref" data-id="rtp-user-guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action rtp-user-guide-d3752e6376-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_user_guide.html" id="rtp-user-guide-d3752e6376-link">RTP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi-d3752e6475" class="topicref" data-id="spi" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi-d3752e6475-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spi/spi_user_guide.html" id="spi-d3752e6475-link"><span class="ph">Q</span>SPI 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="uart_user_guide-d3752e6561" class="topicref" data-id="uart_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action uart_user_guide-d3752e6561-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/uart/uart_user_guide.html" id="uart_user_guide-d3752e6561-link">UART 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="usb_user_guide-d3752e6645" class="topicref" data-id="usb_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action usb_user_guide-d3752e6645-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/usb/usb_user_guide.html" id="usb_user_guide-d3752e6645-link">USB 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e6715" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e6715-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mac/mac_user_guide.html" id="id-d3752e6715-link">MAC 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d3752e6799" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d3752e6799-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d3752e6799-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
|
||
<div class="col-lg-7 col-md-9 col-sm-12" id="wh_topic_body">
|
||
<button id="wh_close_publication_toc_button" class="close-toc-button d-none" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
|
||
<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1">
|
||
<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/pwm/pwm_test_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">测试指南</h1>
|
||
<div class="date inPage">16 May 2025</div><div style="color: gray;">
|
||
Read time: 4 minute(s)
|
||
</div>
|
||
<div class="- topic/body body">
|
||
<section class="- topic/section section" id="id__id2" data-ofbid="id__id2"><h2 class="- topic/title title sectiontitle">测试环境</h2>
|
||
|
||
<ul class="- topic/ul ul" id="id__ul_f5w_n31_tdc" data-ofbid="id__ul_f5w_n31_tdc">
|
||
<li class="- topic/li li" data-ofbid="d204158e35__20250519091528">
|
||
<div class="- topic/div div section" id="id__id3">
|
||
<strong class="+ topic/ph hi-d/b ph b">硬件</strong>
|
||
<ul class="- topic/ul ul simple" id="id__ul_wcz_n31_tdc" data-ofbid="id__ul_wcz_n31_tdc">
|
||
<li class="- topic/li li" data-ofbid="d204158e44__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e46__20250519091528">开发板</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e50__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e52__20250519091528">示波器，用于观察输出 PWM 信号的波形</p>
|
||
</li>
|
||
</ul></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e58__20250519091528">
|
||
<div class="- topic/div div section" id="id__id4">
|
||
<strong class="+ topic/ph hi-d/b ph b">软件</strong>
|
||
<ul class="- topic/ul ul simple" id="id__ul_ldb_431_tdc" data-ofbid="id__ul_ldb_431_tdc">
|
||
<li class="- topic/li li" data-ofbid="d204158e67__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e69__20250519091528">PC 端的串口终端软件，用于 PC 和开发板进行串口通信</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e73__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e75__20250519091528">RT-Thread 系统自带的 <code class="+ topic/ph pr-d/codeph ph codeph">pwm</code> 命令行工具</p>
|
||
</li>
|
||
</ul></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e84__20250519091528">
|
||
<div class="- topic/div div section" id="id__id5">
|
||
<strong class="+ topic/ph hi-d/b ph b">软件配置</strong>
|
||
<p class="- topic/p p" data-ofbid="d204158e91__20250519091528">打开 RT-Thread 系统的 PWM 设备驱动框架，会在启动时注册生成 <code class="+ topic/ph pr-d/codeph ph codeph">pwm</code> 命令。</p></div>
|
||
</li>
|
||
</ul></section><section class="- topic/section section" id="id__pwm" data-ofbid="id__pwm"><h2 class="- topic/title title sectiontitle">动态配置 PWM</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d204158e103__20250519091528">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">pwm</span> 命令来配置某一通道的步骤如下所示，以通道 3 为例：</p><ol class="- topic/ol ol arabic simple" data-ofbid="d204158e108__20250519091528">
|
||
<li class="- topic/li li" data-ofbid="d204158e110__20250519091528">列示所有 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">pwm</span>
|
||
相关命：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_udh_dg1_tdc" data-ofbid="id__codeblock_udh_dg1_tdc">pwm</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_r25_dg1_tdc" data-ofbid="id__codeblock_r25_dg1_tdc">Usage:
|
||
pwm probe <device name> - probe pwm by name
|
||
pwm enable <channel> - enable pwm channel
|
||
pwm disable <channel> - disable pwm channel
|
||
pwm get <channel> - get pwm channel info
|
||
pwm set_pul <channel> <irq_mode> <period> <pulse> <pulse cnt> - set pwm pulse
|
||
pwm set <channel> <period> <pulse> - set pwm channel info
|
||
</pre></li>
|
||
<li class="- topic/li li" data-ofbid="d204158e120__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e122__20250519091528">使用 <span class="+ topic/keyword pr-d/parmname keyword parmname">probe</span> 参数，选择一个 PWM 设备（PWM/EPWM）。</p>
|
||
<div class="- topic/p p" data-ofbid="d204158e128__20250519091528"><span class="+ topic/keyword sw-d/cmdname keyword cmdname">pwm</span> 命令只支持 probe 一个设备，假设设备名称为
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">pwm</code>：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_r4d_2g1_tdc" data-ofbid="id__codeblock_r4d_2g1_tdc">pwm probe pwm</pre></div>
|
||
<div class="- topic/p p" data-ofbid="d204158e138__20250519091528">系统输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_aqs_fg1_tdc" data-ofbid="id__codeblock_aqs_fg1_tdc">probe pwm success</pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e144__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e146__20250519091528">使用 <span class="+ topic/keyword pr-d/parmname keyword parmname">set</span> 参数，分别设置通道 3 的周期和占空比。</p>
|
||
<div class="- topic/p p" data-ofbid="d204158e152__20250519091528">例如，将周期设置为 1,000,000 微秒，占空比设置为
|
||
60%：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_v34_jg1_tdc" data-ofbid="id__codeblock_v34_jg1_tdc">pwm set <span class="hl-number">3</span> <span class="hl-number">1000000</span> <span class="hl-number">600000</span></pre></div>
|
||
<div class="- topic/p p" data-ofbid="d204158e157__20250519091528">系统输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_zsg_kg1_tdc" data-ofbid="id__codeblock_zsg_kg1_tdc">pwm info set on pwm at channel <span class="hl-number">3</span></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d204158e162__20250519091528">在修改通道 3 的参数时，需要借助示波器来观察确认输出的方波信号是否符合预期。</p>
|
||
<div class="- topic/p p" data-ofbid="d204158e165__20250519091528">运行期间也可以动态 <span class="+ topic/keyword pr-d/parmname keyword parmname">set</span> 通道 3 的周期和占空比。例如<ol class="- topic/ol ol" type="a" id="id__ol_t5z_5h1_tdc" data-ofbid="id__ol_t5z_5h1_tdc">
|
||
<li class="- topic/li li" data-ofbid="d204158e172__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e174__20250519091528">将周期设置为 1,000,000 微秒，占空比设置为 10%：</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_fxf_ng1_tdc" data-ofbid="id__codeblock_fxf_ng1_tdc">pwm set <span class="hl-number">3</span> <span class="hl-number">1000000</span> <span class="hl-number">100000</span></pre>
|
||
<div class="- topic/p p" data-ofbid="d204158e180__20250519091528">系统输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_owf_wh1_tdc" data-ofbid="id__codeblock_owf_wh1_tdc">pwm info set on pwm at channel <span class="hl-number">3</span></pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e186__20250519091528">
|
||
<div class="- topic/p p" data-ofbid="d204158e188__20250519091528">再将占空比设置为
|
||
90%：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_jkq_4g1_tdc" data-ofbid="id__codeblock_jkq_4g1_tdc">pwm set <span class="hl-number">3</span> <span class="hl-number">1000000</span> <span class="hl-number">900000</span></pre></div>
|
||
<div class="- topic/p p" data-ofbid="d204158e193__20250519091528">系统输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_tbd_pg1_tdc" data-ofbid="id__codeblock_tbd_pg1_tdc">pwm info set on pwm at channel <span class="hl-number">3</span></pre></div>
|
||
</li>
|
||
</ol></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e201__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e203__20250519091528"><span class="+ topic/keyword pr-d/parmname keyword parmname">enable</span> 通道 3</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_brj_mg1_tdc" data-ofbid="id__codeblock_brj_mg1_tdc">pwm enable <span class="hl-number">3</span></pre>
|
||
<div class="- topic/p p" data-ofbid="d204158e211__20250519091528">系统输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_w2y_gg1_tdc" data-ofbid="id__codeblock_w2y_gg1_tdc">pwm channel <span class="hl-number">3</span> is enabled success</pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e217__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e219__20250519091528">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">set_pul</span> 参数指定数目脉冲输出。</p>
|
||
<div class="- topic/p p" data-ofbid="d204158e225__20250519091528">例如，设置中断模式为 0，周期为 1,000,000 微秒，脉冲宽度为 500,000 微秒，脉冲数为
|
||
5：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_xtm_b31_tdc" data-ofbid="id__codeblock_xtm_b31_tdc">pwm set_pul <span class="hl-number">3</span> <span class="hl-number">0</span> <span class="hl-number">1000000</span> <span class="hl-number">500000</span> <span class="hl-number">5</span>
|
||
pwm pul set on pwm at channel <span class="hl-number">3</span>
|
||
[I] aic_pwm_irq()<span class="hl-number">198</span>
|
||
isr cnt:<span class="hl-number">5</span>,disabled the pwm3 interrupt now.
|
||
</pre></div>
|
||
<div class="- topic/p p" data-ofbid="d204158e230__20250519091528">重复上述命令，可以再次触发脉冲输出：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_bbd_c31_tdc" data-ofbid="id__codeblock_bbd_c31_tdc">pwm set_pul <span class="hl-number">3</span> <span class="hl-number">0</span> <span class="hl-number">1000000</span> <span class="hl-number">500000</span> <span class="hl-number">5</span>
|
||
pwm pul set on pwm at channel <span class="hl-number">3</span>
|
||
[I] aic_pwm_irq()<span class="hl-number">198</span>
|
||
isr cnt:<span class="hl-number">5</span>,disabled the pwm3 interrupt now.
|
||
</pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e237__20250519091528">使用 <code class="+ topic/ph pr-d/codeph ph codeph">pwm_status</code>
|
||
查看通道的动作配置。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_a1v_tg1_tdc" data-ofbid="id__codeblock_a1v_tg1_tdc">pwm_status
|
||
In PWM V1.<span class="hl-number">00</span>:
|
||
Module Enable: <span class="hl-number">1</span>, IRQ Enable: <span class="hl-number">0x8</span>
|
||
Ch En Mode Tb-clk-rate Def CBD CBU CAD CAU PRD ZRO
|
||
<span class="hl-number">00</span> Up <span class="hl-number">240000000</span> - - - - - -
|
||
- - - - - -
|
||
<span class="hl-number">10</span> Up <span class="hl-number">240000000</span> - - - - - -
|
||
- - - - - -
|
||
<span class="hl-number">20</span> Up <span class="hl-number">240000000</span> - - - - - -
|
||
- - - - - -
|
||
<span class="hl-number">31</span> Up <span class="hl-number">240000000</span> - - - Low Hgh -
|
||
- - - Low Hgh -
|
||
</pre><p class="- topic/p p" data-ofbid="d204158e244__20250519091528">通道 3 默认配置为 <span class="+ topic/keyword pr-d/parmname keyword parmname">CAU</span> 动作，所以此处
|
||
<span class="+ topic/keyword pr-d/parmname keyword parmname">irq_mode</span> 配置为 0。同时由于 <span class="+ topic/keyword pr-d/parmname keyword parmname">CAU</span> 为
|
||
Low，所以输出的脉冲方向为下降沿。</p><p class="- topic/p p" data-ofbid="d204158e255__20250519091528">脉冲输出的方向与 <span class="+ topic/keyword pr-d/parmname keyword parmname">action</span>
|
||
配置有关，同时指定脉冲数目输出依赖中断，中断模式需要与 action 配置相对应。</p><div class="- topic/p p" data-ofbid="d204158e260__20250519091528">其中
|
||
<span class="+ topic/keyword pr-d/parmname keyword parmname">irq_mode</span> 范围为 0-3，依次为:<ul class="- topic/ul ul simple" id="id__ul_aqr_n33_fdc" data-ofbid="id__ul_aqr_n33_fdc">
|
||
<li class="- topic/li li" data-ofbid="d204158e267__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e269__20250519091528">0: TBCTR=CMPA 且计数器正在递增时触发事件</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e273__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e275__20250519091528">1: TBCTR=CMPA 且计数器正在递减时触发事件</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e279__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e281__20250519091528">2: TBCTR=CMPB 且计数器正在递增时触发事件</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e285__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e287__20250519091528">3: TBCTR=CMPB 且计数器正在递减时触发事件</p>
|
||
</li>
|
||
</ul></div></li>
|
||
</ol></section>
|
||
<section class="- topic/section section" id="id__id6" data-ofbid="id__id6"><h2 class="- topic/title title sectiontitle">简要编程指南</h2>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_iqb_p33_fdc" data-ofbid="id__codeblock_iqb_p33_fdc"><strong class="hl-keyword">struct</strong> rt_device_pwm *pwm_dev = RT_NULL;
|
||
pwm_dev = (<strong class="hl-keyword">struct</strong> rt_device_pwm *)rt_device_find(<span class="hl-string">"pwm"</span>);
|
||
<strong class="hl-keyword">if</strong> (pwm_dev == NULL) {
|
||
rt_kprintf(<span class="hl-string">"can't find pwm device!\n"</span>);
|
||
<strong class="hl-keyword">return</strong> -RT_ERROR;
|
||
}
|
||
|
||
rt_pwm_set(pwm_dev, <span class="hl-number">3</span>, <span class="hl-number">10000</span>, <span class="hl-number">5000</span>);
|
||
rt_pwm_enable(pwm_dev, <span class="hl-number">3</span>);
|
||
|
||
rt_pwm_set_output(pwm_dev, <span class="hl-number">2</span>, <span class="hl-number">10000</span>, <span class="hl-number">5000</span>, <span class="hl-number">0</span>);
|
||
rt_pwm_set_output(pwm_dev, <span class="hl-number">2</span>, <span class="hl-number">10000</span>, <span class="hl-number">2000</span>, <span class="hl-number">1</span>);
|
||
rt_pwm_enable(pwm_dev, <span class="hl-number">2</span>);</pre><div class="- topic/note note tip note_tip" id="id__note_jzl_qn3_ddc" data-ofbid="id__note_jzl_qn3_ddc"><span class="note__title">提示：</span>
|
||
<ol class="- topic/ol ol arabic simple" data-ofbid="d204158e301__20250519091528">
|
||
<li class="- topic/li li" data-ofbid="d204158e303__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e305__20250519091528">RT-Thread PWM 子系统中的 <span class="+ topic/keyword pr-d/apiname keyword apiname">open/read/write/control</span>
|
||
接口设计不太友好，建议按照使用上述接口。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d204158e312__20250519091528">
|
||
<p class="- topic/p p" data-ofbid="d204158e314__20250519091528">使用 <span class="+ topic/keyword pr-d/apiname keyword apiname">rt_pwm_set_output</span> 可实现同一 PWM 通道，同一周期下的两种不同占空比输出。</p>
|
||
</li>
|
||
</ol>
|
||
</div>
|
||
</section>
|
||
|
||
|
||
</div>
|
||
</article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#id__id2" data-tocid="id__id2">测试环境</a></div></li><li class="section-item"><div class="section-title"><a href="#id__pwm" data-tocid="id__pwm">动态配置 PWM</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id6" data-tocid="id__id6">简要编程指南</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style>
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
</style>
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div>
|
||
<div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-05-19
|
||
</div>
|
||
</div>
|
||
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |