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id="id-d5856e2285-link">内存配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e2297" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-storage.html" id="id-d5856e2297-link">存储配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e2309" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-console.html" id="id-d5856e2309-link">调试配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e2321" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display.html" id="id-d5856e2321-link">屏幕配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e2333" class="topicref" data-id="id" data-state="leaf"><span 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<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://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/bringup/lite-bringup-soc.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">引脚配置</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 2 minute(s)
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</div><div class="- topic/body body"><div class="- topic/p p" data-ofbid="d50404e21__20250121171518"><span class="- topic/ph ph">Luban-Lite</span> SDK
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支持多个芯片平台，在 BringUp 之前，务必确认板卡使用的 SoC
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具体型号以配置正确的引脚和内存。遵照以下流程确认相应的
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SoC 型号并修改配置：<ol class="- topic/ol ol" data-ofbid="d50404e25__20250121171518"><li class="- topic/li li" data-ofbid="d50404e26__20250121171518">确认 SoC 的具体型号并阅读对应的芯片手册 —— 引脚复用章节，确认每个引脚能提供的功能。</li><li class="- topic/li li" data-ofbid="d50404e28__20250121171518">打开 SoC 的
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<span class="+ topic/ph sw-d/filepath ph filepath">target/<var class="+ topic/keyword sw-d/varname keyword varname">SoC</var>/<var class="+ topic/keyword sw-d/varname keyword varname">board</var>/pinmux.c</span>
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引脚定义文件，配置引脚数量。<p class="- topic/p p" data-ofbid="d50404e39__20250121171518"><span class="- topic/ph ph">Luban-Lite</span> SDK 各个开发板引脚定义在
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<span class="+ topic/ph sw-d/filepath ph filepath">target/<var class="+ topic/keyword sw-d/varname keyword varname">SoC</var>/<var class="+ topic/keyword sw-d/varname keyword varname">board</var>/pinmux.c</span>
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文件中。SDK 中对于 SoC 支持的引脚数量没有显式限制。</p></li><li class="- topic/li li" data-ofbid="d50404e52__20250121171518">根据芯片手册及新添加板卡的原理图，确定对应的引脚功能，并在
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<span class="+ topic/ph sw-d/filepath ph filepath">target/<var class="+ topic/keyword sw-d/varname keyword varname">SoC</var>/<var class="+ topic/keyword sw-d/varname keyword varname">board</var>/pinmux.c</span>
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引脚定义文件中配置引脚功能。<p class="- topic/p p" data-ofbid="d50404e63__20250121171518">更改接口配置时，确保 pinmux 没有冲突，否则可能会引起未知错误。</p><p class="- topic/p p" data-ofbid="d50404e65__20250121171518">每个引脚同时只能被设置成一种功能，
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每个 pin 脚的配置，使用结构体描述。</p><div class="- topic/p p" data-ofbid="d50404e67__20250121171518">
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_dk4_trv_1dc" data-ofbid="id__pre_dk4_trv_1dc"><strong class="hl-keyword">struct</strong> aic_pinmux
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{
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<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> func; <em class="hl-comment">// 功能编号</em>
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<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> bias; <em class="hl-comment">// 内部上下拉设置，一般无需修改</em>
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<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> drive; <em class="hl-comment">// 驱动能力，若需要修改，请联系专业人士确认</em>
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<strong class="hl-keyword">char</strong> * name; <em class="hl-comment">// 引脚名称字符串，例如 "PA.0"</em>
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};
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</pre>
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</div><div class="- topic/p p" data-ofbid="d50404e72__20250121171518">例如 PA.0 和 PA.1
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引脚：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_evv_trv_1dc" data-ofbid="id__pre_evv_trv_1dc"><strong class="hl-keyword">struct</strong> aic_pinmux aic_pinmux_config[] = {
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#ifdef AIC_USING_UART0
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<em class="hl-comment">/* uart0 */</em>
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{<span class="hl-number">5</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PA.0"</span>}, <em class="hl-comment">// PA.0 配置功能 5，用作串口 0</em>
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{<span class="hl-number">5</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PA.1"</span>}, <em class="hl-comment">// PA.1 配置功能 5，用作串口 0</em>
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#endif
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...
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}；
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</pre></div></li><li class="- topic/li li" data-ofbid="d50404e76__20250121171518">
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<p class="- topic/p p" data-ofbid="d50404e78__20250121171518">拉低烧录引脚，使
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SoC 进入烧录模式，烧录引脚。</p>
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<div class="- topic/p p" data-ofbid="d50404e84__20250121171518">在新增加的板卡配置中，结合原理图配置引脚。 先加载项目对应的 <span class="+ topic/ph sw-d/filepath ph filepath">baremetal_helloworld</span>
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工程，例如 <span class="+ topic/ph sw-d/filepath ph filepath">d21x_demo128-nand_baremetal_BootLoader</span>，再使用
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<span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span>
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进行配置，修改配置如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_bw5_5rv_1dc" data-ofbid="id__pre_bw5_5rv_1dc">BootLoader options
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Upgrading
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(PA.<span class="hl-number">0</span>) PIN to enter upgrading mode # 根据原理图修改对应的烧录引脚</pre></div>
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</li><li class="- topic/li li" data-ofbid="d50404e98__20250121171518">在修改 <span class="+ topic/ph sw-d/filepath ph filepath">pinmux.c</span> 之后，先编译 BootLoader，再编译 RT-Thread。<p class="- topic/p p" data-ofbid="d50404e103__20250121171518">项目中的
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BootLoader 和 RT-Thread 是共享 pinmux 配置的，必须先编译 BootLoader，否则 pinmux
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配置可能无法生效。<span class="- topic/ph ph">Luban-Lite</span> 支持使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">mb</span> 命令，一键编译
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BootLoader 和 RT-Thread。</p></li><li class="- topic/li li" data-ofbid="d50404e111__20250121171518">对于使用了内部 LDO 给 CPU 供电的 SoC，则需要使能内部 LDO，否则可略过此步。例如，D12x 支持单 3.3 V
|
||
供电设计。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" data-ofbid="d50404e113__20250121171518">Board options > Syscfg Parameter
|
||
|
||
[*] SYSCFG LDO1X enable --->
|
||
(<span class="hl-number">8</span>) LDO1X voltage value level <<span class="hl-number">0</span>-<span class="hl-number">15</span>></pre></li></ol></div></div></article></main></div>
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