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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/gpai/gpai_config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">GPAI 配置</h1><div class="date inPage">17 Dec 2024</div><div style="color: gray;">
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Read time: 2 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="gpai_configuration__section_gpv_1zq_sdc" data-ofbid="gpai_configuration__section_gpv_1zq_sdc"><h2 class="- topic/title title sectiontitle">内核配置</h2>
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<div class="- topic/p p" data-ofbid="d312164e27__20250121171816">
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<ol class="- topic/ol ol" id="gpai_configuration__ol_uhl_glr_21c" data-ofbid="gpai_configuration__ol_uhl_glr_21c"><li class="- topic/li li" data-ofbid="d312164e30__20250121171816">配置 IIO<p class="- topic/p p" data-ofbid="d312164e32__20250121171816">在 SDK 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make menuconfig</span>，进入 menuconfig
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配置界面，按如下选择：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__pre_dsd_ntq_21c" data-ofbid="gpai_configuration__pre_dsd_ntq_21c">ArtInChip Luban SDK Configuration
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Linux kernel
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Advance setting
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Linux Kernel Tools
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<*>iio</pre></li><li class="- topic/li li" data-ofbid="d312164e39__20250121171816">配置 GPAI<div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d312164e43__20250121171816">在 SDK 根目录下，执行下列命令，进入 kernel
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的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__codeblock_wg1_3ml_sdc" data-ofbid="gpai_configuration__codeblock_wg1_3ml_sdc">make kernel-menuconfig</pre></div>
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<p class="- topic/p p" data-ofbid="d312164e48__20250121171816">或使用简写命令</p>
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<div class="- topic/p p" data-ofbid="d312164e51__20250121171816">
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__codeblock_uss_hml_sdc" data-ofbid="gpai_configuration__codeblock_uss_hml_sdc">make km</pre>
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</div>
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</div><p class="- topic/p p" data-ofbid="d312164e57__20250121171816">在
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SDK 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make kernel-menuconfig</span>，进入 kernel
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的功能配置，按如下选择：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__pre_fsd_ntq_21c" data-ofbid="gpai_configuration__pre_fsd_ntq_21c">Linux
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Device Drivers
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<*> Industrial I/O support
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Analog to digital converters
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<*> ArtInChip GPAI driver</pre></li></ol>
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</div>
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</section><section class="- topic/section section" id="gpai_configuration__section_l45_czq_sdc" data-ofbid="gpai_configuration__section_l45_czq_sdc"><h2 class="- topic/title title sectiontitle">DTS 参数配置</h2>
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<div class="- topic/p p" data-ofbid="d312164e71__20250121171816">
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<ol class="- topic/ol ol" id="gpai_configuration__ol_hr2_3lr_21c" data-ofbid="gpai_configuration__ol_hr2_3lr_21c"><li class="- topic/li li" data-ofbid="d312164e74__20250121171816">GPAI 自定义参数 <p class="- topic/p p" data-ofbid="d312164e76__20250121171816">GPAI 驱动支持从 DTS 中配置自定义参数，如下表所示：</p><div class="table-container"><table class="- topic/table table frame-all" id="gpai_configuration__table_hsd_ntq_21c" data-ofbid="gpai_configuration__table_hsd_ntq_21c" data-cols="4"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">GPAI 自定义参数</span></caption><colgroup><col style="width:22.961104140526977%"/><col style="width:12.547051442910917%"/><col style="width:18.946047678795484%"/><col style="width:45.54579673776662%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_configuration__table_hsd_ntq_21c__entry__1">参数名称</th><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_configuration__table_hsd_ntq_21c__entry__2">类型</th><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_configuration__table_hsd_ntq_21c__entry__3">取值范围</th><th class="- topic/entry entry colsep-0 rowsep-1" id="gpai_configuration__table_hsd_ntq_21c__entry__4">功能说明</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__1"><span class="+ topic/keyword pr-d/parmname keyword parmname">aic,sample-period-ms</span></td><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__2">正整数</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__3">> 0, (0, 10000]</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__4">周期采样模式下的周期值，单位：ms</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__1"><span class="+ topic/keyword pr-d/parmname keyword parmname">aic,high-level-thd</span></td><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__2">正整数</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__3">> 0</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_configuration__table_hsd_ntq_21c__entry__4">高电平报警阈值</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_configuration__table_hsd_ntq_21c__entry__1"><span class="+ topic/keyword pr-d/parmname keyword parmname">aic,low-level-thd</span></td><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_configuration__table_hsd_ntq_21c__entry__2">正整数</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_configuration__table_hsd_ntq_21c__entry__3">> 0</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="gpai_configuration__table_hsd_ntq_21c__entry__4">低电平报警阈值</td></tr></tbody></table></div><div class="- topic/note note note note_note" id="gpai_configuration__note_mhg_jlr_21c" data-ofbid="gpai_configuration__note_mhg_jlr_21c"><span class="note__title">注：</span>
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<p class="- topic/p p" data-ofbid="d312164e129__20250121171816">采样周期范围值属于 GPAI V1.0 的规范。GPAI V0.1 的周期有效范围不到 3 ms，不推荐。</p>
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</div></li><li class="- topic/li li" data-ofbid="d312164e132__20250121171816">D211 配置<div class="- topic/p p" data-ofbid="d312164e134__20250121171816">在 <span class="+ topic/ph sw-d/filepath ph filepath">common/d211.dtsi</span> 中的 GPAI
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控制器定义：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__codeblock_ngs_klr_21c" data-ofbid="gpai_configuration__codeblock_ngs_klr_21c">gpai: gpai@<span class="hl-number">19251000</span> {
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compatible = <span class="hl-string">"artinchip,aic-gpai-v1.0"</span>;
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reg = <<span class="hl-number">0x0</span> <span class="hl-number">0x19251000</span> <span class="hl-number">0x0</span> <span class="hl-number">0x1000</span>>;
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interrupts-extended = <&plic0 <span class="hl-number">92</span> IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cmu CLK_GPAI>, <&cmu CLK_APB1>;
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clock-names = <span class="hl-string">"gpai"</span>, <span class="hl-string">"pclk"</span>;
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resets = <&rst RESET_GPAI>;
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};</pre></div></li><li class="- topic/li li" id="gpai_configuration__li_zkk_psr_21c" data-ofbid="gpai_configuration__li_zkk_psr_21c">Board 配置<p class="- topic/p p" data-ofbid="d312164e143__20250121171816"><span class="+ topic/ph sw-d/filepath ph filepath">xxx/board.dts</span>
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中的参数配置需要区分通道号，每个通道可以单独使能。</p><div class="- topic/p p" data-ofbid="d312164e147__20250121171816">使能的通道，需要指定该通道用到的 GPIO 配置，如
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<span class="+ topic/ph ui-d/uicontrol ph uicontrol">gpai7_pins</span>：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_configuration__codeblock_mvh_llr_21c" data-ofbid="gpai_configuration__codeblock_mvh_llr_21c">&gpai {
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status = <span class="hl-string">"okay"</span>;
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pinctrl-names = <span class="hl-string">"default"</span>;
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pinctrl-<span class="hl-number">0</span> = <&gpai7_pins>;
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gpai0 {
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aic,sample-period-ms = <<span class="hl-number">10</span>>;
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aic,high-level-thd = <<span class="hl-number">1830</span>>;
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aic,low-level-thd = <<span class="hl-number">1800</span>>;
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai1 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai2 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai3 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai4 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai5 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai6 {
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status = <span class="hl-string">"disabled"</span>;
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};
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gpai7 {
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status = <span class="hl-string">"okay"</span>;
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};
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};</pre></div></li></ol>
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<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="#gpai_configuration__section_gpv_1zq_sdc" data-tocid="gpai_configuration__section_gpv_1zq_sdc">内核配置</a></div></li><li class="section-item"><div class="section-title"><a href="#gpai_configuration__section_l45_czq_sdc" data-tocid="gpai_configuration__section_l45_czq_sdc">DTS 参数配置</a></div></li></ul></div>
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