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< 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， < / 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
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< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
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Read time: 2 minute(s)
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< / div >
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< section class = "- topic/section section" id = "id__id2" data-ofbid = "id__id2" > < h2 class = "- topic/title title sectiontitle" > 准备测试环境< / h2 >
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< li class = "- topic/li li" data-ofbid = "d125511e37__20250519091518" > < strong class = "+ topic/ph hi-d/b ph b" > 硬件< / strong > < ul class = "- topic/ul ul simple" id = "id__ul_qwy_hxh_bdc" data-ofbid = "id__ul_qwy_hxh_bdc" >
< li class = "- topic/li li" data-ofbid = "d125511e42__20250519091518" >
< p class = "- topic/p p" data-ofbid = "d125511e44__20250519091518" > 开发板< / p >
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< / li >
< / ul > < / li >
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< li class = "- topic/li li" data-ofbid = "d125511e49__20250519091518" > < strong class = "+ topic/ph hi-d/b ph b" > 软件< / strong > < ul class = "- topic/ul ul simple" id = "id__ul_rwy_hxh_bdc" data-ofbid = "id__ul_rwy_hxh_bdc" >
< li class = "- topic/li li" data-ofbid = "d125511e54__20250519091518" >
< p class = "- topic/p p" data-ofbid = "d125511e56__20250519091518" > PC 端的串口终端软件，用于 PC 和开发板进行串口通信< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d125511e60__20250519091518" >
< p class = "- topic/p p" data-ofbid = "d125511e62__20250519091518" > < span class = "- topic/ph ph" > Luban-Lite< / span > 中打开 Watchdog 模块和
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< code class = "+ topic/ph pr-d/codeph ph codeph" > test_wdt< / code > 功能< / p >
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< / li >
< / ul > < / li >
< / ul >
< / div > < / section >
< section class = "- topic/section section" id = "id__id5" data-ofbid = "id__id5" > < h2 class = "- topic/title title sectiontitle" > 打开 < code class = "+ topic/ph pr-d/codeph ph codeph" > test-wdt< / code > < / h2 >
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< p class = "- topic/p p" data-ofbid = "d125511e81__20250519091518" > 在 < span class = "- topic/ph ph" > Luban-Lite< / span > 根目录下执行 < span class = "+ topic/keyword sw-d/cmdname keyword cmdname" > scons --menuconfig< / span > ，进入 menuconfig
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的功能配置界面，按如下配置，打开 WDT 的综合功能测试 (< code class = "+ topic/ph pr-d/codeph ph codeph" > test_wdt< / code > )： < / p >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_swy_hxh_bdc" data-ofbid = "id__codeblock_swy_hxh_bdc" > Drivers options --->
Drivers examples --->
[*] Enable WDT driver test command< / pre >
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< / section >
< section class = "- topic/section section" id = "id__id6" data-ofbid = "id__id6" > < h2 class = "- topic/title title sectiontitle" > 测试
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Watchdog
复位功能< / h2 >
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< div class = "- topic/p p" data-ofbid = "d125511e102__20250519091518" >
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< ol class = "- topic/ol ol" id = "id__ol_xcn_p1h_ddc" data-ofbid = "id__ol_xcn_p1h_ddc" >
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< li class = "- topic/li li" data-ofbid = "d125511e106__20250519091518" > 连接开发板和 PC。< / li >
< li class = "- topic/li li" data-ofbid = "d125511e109__20250519091518" > 按下开发板上的复位按钮或断开电源再重新上电来重启开发板。< / li >
< li class = "- topic/li li" data-ofbid = "d125511e112__20250519091518" > 使用 < span class = "+ topic/keyword sw-d/cmdname keyword cmdname" > reboot< / span > 命令验证 Watchdog 的复位功能。< div class = "- topic/p p" data-ofbid = "d125511e117__20250519091518" > WDT 驱动注册了一个
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< span class = "+ topic/keyword sw-d/cmdname keyword cmdname" > reboot< / span > 命令，可实现系统的复位，此命令可用来验证 WDT 的复位功能。
在串口终端中输入以下命令：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_dbb_s1h_ddc" data-ofbid = "id__codeblock_dbb_s1h_ddc" > reboot
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< / pre > < / div > < div class = "- topic/p p" data-ofbid = "d125511e124__20250519091518" > 系统输出示例如下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_lnh_xv3_5dc" data-ofbid = "id__codeblock_lnh_xv3_5dc" > < span class = "hl-number" > 01< / span > -< span class = "hl-number" > 01< / span > < span class = "hl-number" > 08< / span > :< span class = "hl-number" > 05< / span > :< span class = "hl-number" > 22< / span > I/WDT: Restarting system ...
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Pre-Boot Program ... (< span class = "hl-number" > 2023< / span > -< span class = "hl-number" > 03< / span > -< span class = "hl-number" > 02< / span > < span class = "hl-number" > 14< / span > :< span class = "hl-number" > 20< / span > :< span class = "hl-number" > 30< / span > )
Going to init DDR2. freq: < span class = "hl-number" > 504< / span > MHz, size: < span class = "hl-number" > 64< / span > MB.
DDR2 initialized
PBP done
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U-Boot SPL < span class = "hl-number" > 2021.10< / span > -< span class = "hl-number" > 00008< / span > -g13511a4f-dirty (Apr < span class = "hl-number" > 172023< / span > - < span class = "hl-number" > 13< / span > :< span class = "hl-number" > 25< / span > :< span class = "hl-number" > 13< / span > +< span class = "hl-number" > 0800< / span > )< / pre > < / div > < / li >
< / ol >
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< / div >
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< / section >
< section class = "- topic/section section" id = "id__id7" data-ofbid = "id__id7" > < h2 class = "- topic/title title sectiontitle" > 测试
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Watchdog
的综合功能< / h2 >
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< div class = "- topic/p p" data-ofbid = "d125511e137__20250519091518" > WDT
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注册了一个
< code class = "+ topic/ph pr-d/codeph ph codeph" > test_wdt< / code >
命令，用于测试
WDT
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的其它功能，比如喂狗，预处理等。以下为具体的使用示例：< ol class = "- topic/ol ol" id = "id__ol_c3y_y1h_ddc" data-ofbid = "id__ol_c3y_y1h_ddc" >
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< li class = "- topic/li li" data-ofbid = "d125511e144__20250519091518" > 设置 timeout 为 3
秒并开启看门狗：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_rxr_cbh_ddc" data-ofbid = "id__codeblock_rxr_cbh_ddc" > test_wdt -s < span class = "hl-number" > 3< / span > < / pre > < p class = "- topic/p p" data-ofbid = "d125511e148__20250519091518" > 结果：系统会在
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3 秒后重启。< / p > < / li >
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< li class = "- topic/li li" data-ofbid = "d125511e151__20250519091518" > 设置 pretimeout 为 3
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秒并开启超时中断：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_h3y_gbh_ddc" data-ofbid = "id__codeblock_h3y_gbh_ddc" > test_wdt -p < span class = "hl-number" > 3< / span >
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< / pre > < p class = "- topic/p p" data-ofbid = "d125511e155__20250519091518" > 结果： < / p > < / li >
< li class = "- topic/li li" data-ofbid = "d125511e158__20250519091518" > 设置清除窗口为 3
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秒：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_hzc_jbh_ddc" data-ofbid = "id__codeblock_hzc_jbh_ddc" > test_wdt -c < span class = "hl-number" > 3< / span >
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< / pre > < p class = "- topic/p p" data-ofbid = "d125511e162__20250519091518" > 结果：计数到 3 秒之后才能“喂狗”。< / p > < / li >
< li class = "- topic/li li" data-ofbid = "d125511e165__20250519091518" > 获取当前的
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timeout： < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_nfh_jbh_ddc" data-ofbid = "id__codeblock_nfh_jbh_ddc" > test_wdt -g
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< / pre > < p class = "- topic/p p" data-ofbid = "d125511e169__20250519091518" > 结果：返回当前的 timeout 值。< / p > < / li >
< li class = "- topic/li li" data-ofbid = "d125511e172__20250519091518" > 开启喂狗功能（空闲钩子）：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_rxx_kbh_ddc" data-ofbid = "id__codeblock_rxx_kbh_ddc" > test_wdt -k
< / pre > < p class = "- topic/p p" data-ofbid = "d125511e176__20250519091518" > 结果：开启喂狗功能，防止系统因长时间未操作而重启。< / p > < / li >
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< / ol > < / div >
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< p class = "- topic/p p" data-ofbid = "d125511e180__20250519091518" > 使用 < code class = "+ topic/ph pr-d/codeph ph codeph" > test_wdt -u< / code > 帮助命令可以获取 WDT 相关帮助信息：< / p >
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< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_uwy_hxh_bdc" data-ofbid = "id__codeblock_uwy_hxh_bdc" > test_wdt -u< / pre >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_jg3_zv3_5dc" data-ofbid = "id__codeblock_jg3_zv3_5dc" > Usage: test_wdt [-s timeout][-p pretimeout][-c clear threshold][-g][-k][-u]
-s, --set-timeout Set a timeout, in second
-p, --set-pretimeout Set a pretimeout, in second
-c, --set-clear threshold Set clear threshold,in second(< span class = "hl-number" > 0< / span > ~< span class = "hl-number" > 3< / span > )
-g, --get-timeout Get the current timeout, in second
-k, --keepalive Keepalive the watchdog
-u, --usage
< / pre >
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< / section >
< / div >
< / article > < / main > < / div >
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< / 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" > 准备测试环境< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#id__id5" data-tocid = "id__id5" > 打开 < code class = "+ topic/ph pr-d/codeph ph codeph" > test-wdt< / code > < / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#id__id6" data-tocid = "id__id6" > 测试
Watchdog
复位功能< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#id__id7" data-tocid = "id__id7" > 测试
Watchdog
的综合功能< / 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 >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / 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 >
