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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" 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://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/watchdog/watchdog-test-guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">测试指南</h1><div class="date inPage">4 Dec 2024</div><div style="color: gray;">
Read time: 3 minute(s)
</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="watchdog_test_guide__section_dkd_rqv_mdc" data-ofbid="watchdog_test_guide__section_dkd_rqv_mdc"><h2 class="- topic/title title sectiontitle">准备测试环境</h2>
<div class="- topic/p p" data-ofbid="d339463e27__20250121171858">Watchdog 测试所需的测试环境如下：<ul class="- topic/ul ul" id="watchdog_test_guide__ol_rrk_pls_c1c" data-ofbid="watchdog_test_guide__ol_rrk_pls_c1c"><li class="- topic/li li" data-ofbid="d339463e30__20250121171858"><strong class="+ topic/ph hi-d/b ph b">硬件</strong>：开发板，或 D211 的 FPGA 板</li><li class="- topic/li li" data-ofbid="d339463e34__20250121171858"><strong class="+ topic/ph hi-d/b ph b">软件</strong>：<ul class="- topic/ul ul" id="watchdog_test_guide__ul_ocq_hts_c1c" data-ofbid="watchdog_test_guide__ul_ocq_hts_c1c"><li class="- topic/li li" data-ofbid="d339463e39__20250121171858">PC 端的串口终端软件，用于 PC 和开发板进行串口通信</li><li class="- topic/li li" data-ofbid="d339463e41__20250121171858">Luban 中带有的 <code class="+ topic/ph pr-d/codeph ph codeph">test_wdt</code> 测试工具</li></ul></li></ul></div>
</section><section class="- topic/section section" id="watchdog_test_guide__section_fln_sqv_mdc" data-ofbid="watchdog_test_guide__section_fln_sqv_mdc"><h2 class="- topic/title title sectiontitle">打开 <code class="+ topic/ph pr-d/codeph ph codeph">test-wdt</code></h2>
<div class="- topic/p p" data-ofbid="d339463e54__20250121171858">在 Luban 的根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make menuconfig</span> 命令，打开
<code class="+ topic/ph pr-d/codeph ph codeph">test-watchdog</code>
选项：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_hwf_wdt_c1c" data-ofbid="watchdog_test_guide__codeblock_hwf_wdt_c1c">ArtInChip packages
Sample code
[*] test-watchdog</pre></div>
</section><section class="- topic/section section" id="watchdog_test_guide__section_tlw_5qv_mdc" data-ofbid="watchdog_test_guide__section_tlw_5qv_mdc"><h2 class="- topic/title title sectiontitle"><code class="+ topic/ph pr-d/codeph ph codeph">test-wdt</code> 测试</h2>
<div class="- topic/p p" data-ofbid="d339463e72__20250121171858"><code class="+ topic/ph pr-d/codeph ph codeph">test-wdt</code> 主要用于通过 ioctl 标准接口，查询和设置 Watchdog，具体步骤如下：<ul class="- topic/ul ul" id="watchdog_test_guide__ol_w21_xqv_mdc" data-ofbid="watchdog_test_guide__ol_w21_xqv_mdc"><li class="- topic/li li" data-ofbid="d339463e77__20250121171858">
<p class="- topic/p p" data-ofbid="d339463e79__20250121171858">在 Shell 中直接运行 test_wdt 即可。</p>
<p class="- topic/p p" data-ofbid="d339463e82__20250121171858">板子上的 <code class="+ topic/ph pr-d/codeph ph codeph">test-wdt</code> 位于
<span class="+ topic/ph sw-d/filepath ph filepath">/usr/local/bin/</span>，无需进入该目录。</p>
</li><li class="- topic/li li" data-ofbid="d339463e91__20250121171858">
<p class="- topic/p p" data-ofbid="d339463e93__20250121171858">执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">test_wdt -u</span> 命令可查看帮助信息：</p>
<div class="- topic/p p" data-ofbid="d339463e99__20250121171858">test_wdt
的帮助信息输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_gdx_ydt_c1c" data-ofbid="watchdog_test_guide__codeblock_gdx_ydt_c1c">
Compile time: Apr <span class="hl-number">16</span> <span class="hl-number">2022</span> <span class="hl-number">14</span>:<span class="hl-number">31</span>:<span class="hl-number">42</span>
Usage: test_wdt [options]
-i, --info Print the status and infomation
-s, --set-timeout Set a timeout, in second
-g, --get-timeout Get the current timeout, in second
-p, --set-pretimeout Set a pretimeout, in second
-G, --get-pretimeout Get the current pretimeout, in second
-k, --keepalive Keepalive the watchdog
-u, --usage
Example: test_wdt -c <span class="hl-number">0</span> -s <span class="hl-number">12</span>
Example: test_wdt -c <span class="hl-number">1</span> -s <span class="hl-number">100</span> -p <span class="hl-number">90</span></pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e104__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e106__20250121171858"><code class="+ topic/ph pr-d/codeph ph codeph">test_wdt</code> 的使用示例：<div class="- topic/note note note note_note" id="watchdog_test_guide__note_y3c_ssv_mdc" data-ofbid="watchdog_test_guide__note_y3c_ssv_mdc"><span class="note__title">注：</span>
<ul class="- topic/ul ul" id="watchdog_test_guide__ol_qds_zdt_c1c" data-ofbid="watchdog_test_guide__ol_qds_zdt_c1c"><li class="- topic/li li" data-ofbid="d339463e113__20250121171858">在 WDT V1.0 驱动中，timeout 参数取值范围必需为 [1, 3600]，即最小 1 秒且最多 1
小时。</li><li class="- topic/li li" data-ofbid="d339463e115__20250121171858">在 Linux 的 Watchdog 子系统中，pretimeout 必须小于 timeout。</li></ul>
</div><ul class="- topic/ul ul" id="watchdog_test_guide__ul_af5_grv_mdc" data-ofbid="watchdog_test_guide__ul_af5_grv_mdc"><li class="- topic/li li" data-ofbid="d339463e119__20250121171858">
<p class="- topic/p p" data-ofbid="d339463e121__20250121171858">初始化和查看状态：</p>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_i2f_hrv_mdc" data-ofbid="watchdog_test_guide__codeblock_i2f_hrv_mdc">test_wdt -i</pre>
<div class="- topic/p p" data-ofbid="d339463e127__20250121171858">输出结果示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_vwr_krv_mdc" data-ofbid="watchdog_test_guide__codeblock_vwr_krv_mdc">In ArtInChip Watchdog timer watchdog V0, options <span class="hl-number">0x8180</span>
Status: <span class="hl-number">32768</span>
Boot status: <span class="hl-number">0</span></pre></div>
<ul class="- topic/ul ul" id="watchdog_test_guide__ul_awg_mrv_mdc" data-ofbid="watchdog_test_guide__ul_awg_mrv_mdc"><li class="- topic/li li" data-ofbid="d339463e133__20250121171858"><code class="+ topic/ph pr-d/codeph ph codeph">-i</code> 选项用于初始化 Watchdog timer
并显示其当前状态。</li><li class="- topic/li li" data-ofbid="d339463e137__20250121171858">输出显示了 Watchdog timer 的版本、选项、状态和启动状态。</li></ul>
</li><li class="- topic/li li" data-ofbid="d339463e140__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e142__20250121171858">设置超时时间：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_nvn_nrv_mdc" data-ofbid="watchdog_test_guide__codeblock_nvn_nrv_mdc">test_wdt -s <span class="hl-number">0</span></pre></div>
<div class="- topic/p p" data-ofbid="d339463e147__20250121171858">输出结果示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_pvc_nrv_mdc" data-ofbid="watchdog_test_guide__codeblock_pvc_nrv_mdc">wdt_set_timeout()<span class="hl-number">125</span> - Set chan0 timeout <span class="hl-number">0</span>, pretimeout <span class="hl-number">0</span>
[ERROR] wdt_set_timeout()<span class="hl-number">128</span> - Failed to set timeout <span class="hl-number">22</span>[Invalid argument]
</pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e152__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e154__20250121171858">设置超时时间为
0<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_x1r_xrv_mdc" data-ofbid="watchdog_test_guide__codeblock_x1r_xrv_mdc">test_wdt -s <span class="hl-number">0</span></pre></div>
<div class="- topic/p p" data-ofbid="d339463e159__20250121171858">输出结果示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_uzr_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_uzr_qrv_mdc">wdt_set_timeout()<span class="hl-number">125</span> - Set chan0 timeout <span class="hl-number">0</span>, pretimeout <span class="hl-number">0</span>
[ERROR] wdt_set_timeout()<span class="hl-number">128</span> - Failed to set timeout <span class="hl-number">22</span>[Invalid argument]
</pre><ul class="- topic/ul ul" id="watchdog_test_guide__ul_vzr_qrv_mdc" data-ofbid="watchdog_test_guide__ul_vzr_qrv_mdc"><li class="- topic/li li" data-ofbid="d339463e164__20250121171858">尝试将超时时间设置为 0 秒失败，因为 0 秒为无效值。</li></ul></div>
</li><li class="- topic/li li" data-ofbid="d339463e167__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e169__20250121171858">获取当前超时时间<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_lnc_bsv_mdc" data-ofbid="watchdog_test_guide__codeblock_lnc_bsv_mdc">test_wdt -g</pre></div>
<div class="- topic/p p" data-ofbid="d339463e174__20250121171858">输出结果示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_xzr_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_xzr_qrv_mdc">wdt_get_timeout()<span class="hl-number">155</span> - Get chan0 timeout <span class="hl-number">16</span>
</pre><ul class="- topic/ul ul" id="watchdog_test_guide__ul_yzr_qrv_mdc" data-ofbid="watchdog_test_guide__ul_yzr_qrv_mdc"><li class="- topic/li li" data-ofbid="d339463e179__20250121171858"><code class="+ topic/ph pr-d/codeph ph codeph">-g</code> 选项用于获取当前的超时时间。</li><li class="- topic/li li" data-ofbid="d339463e183__20250121171858">输出显示当前的超时时间为 16 秒。</li></ul></div>
</li><li class="- topic/li li" data-ofbid="d339463e186__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e188__20250121171858">设置有效的超时时间，例如 2
秒<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_usp_csv_mdc" data-ofbid="watchdog_test_guide__codeblock_usp_csv_mdc">test_wdt -s <span class="hl-number">2</span></pre></div>
<div class="- topic/p p" data-ofbid="d339463e193__20250121171858">输出结果示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_a1s_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_a1s_qrv_mdc">
wdt_set_timeout()<span class="hl-number">125</span> - Set chan0 timeout <span class="hl-number">2</span>, pretimeout <span class="hl-number">0</span>
</pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e198__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e200__20250121171858">再次获取当前超时时间<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_cgs_2sv_mdc" data-ofbid="watchdog_test_guide__codeblock_cgs_2sv_mdc">test_wdt -g</pre></div>
<div class="- topic/p p" data-ofbid="d339463e205__20250121171858">输出结果示例如下，显示当前的超时时间为 2
秒：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_d1s_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_d1s_qrv_mdc">wdt_get_timeout()<span class="hl-number">155</span> - Get chan0 timeout <span class="hl-number">2</span>
</pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e210__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e212__20250121171858">设置另一个有效的超时时间，例如 9
秒。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_n2k_gsv_mdc" data-ofbid="watchdog_test_guide__codeblock_n2k_gsv_mdc">test_wdt -s <span class="hl-number">9</span></pre></div>
<div class="- topic/p p" data-ofbid="d339463e217__20250121171858">输出结果示例如下，表示成功将超时时间设置为 9
秒：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_g1s_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_g1s_qrv_mdc">
wdt_set_timeout()<span class="hl-number">125</span> - Set chan0 timeout <span class="hl-number">9</span>, pretimeout <span class="hl-number">0</span>
</pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e222__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e224__20250121171858">再次获取当前超时时间<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_egj_msv_mdc" data-ofbid="watchdog_test_guide__codeblock_egj_msv_mdc">test_wdt -g</pre></div>
<div class="- topic/p p" data-ofbid="d339463e229__20250121171858">输出结果示例如下，显示当前的超时时间为 9
秒：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_j1s_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_j1s_qrv_mdc">
wdt_get_timeout()<span class="hl-number">155</span> - Get chan0 timeout <span class="hl-number">9</span>
</pre></div>
</li><li class="- topic/li li" data-ofbid="d339463e234__20250121171858">
<div class="- topic/p p" data-ofbid="d339463e236__20250121171858">设置带预超时时间的超时时间，例如 9
秒<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_r42_4sv_mdc" data-ofbid="watchdog_test_guide__codeblock_r42_4sv_mdc">test_wdt -s <span class="hl-number">9</span> -p <span class="hl-number">4</span></pre></div>
<div class="- topic/p p" data-ofbid="d339463e241__20250121171858">输出结果示例如下，表示成功将超时时间设置为 9 秒，并将预超时时间设置为 4
秒。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="watchdog_test_guide__codeblock_m1s_qrv_mdc" data-ofbid="watchdog_test_guide__codeblock_m1s_qrv_mdc">
wdt_set_timeout()<span class="hl-number">125</span> - Set chan0 timeout <span class="hl-number">9</span>, pretimeout <span class="hl-number">4</span>
</pre></div>
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