mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
synced 2025-12-14 18:38:55 +00:00
236 lines
35 KiB
HTML
236 lines
35 KiB
HTML
|
|
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.0">
|
|||
|
|
<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="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="concept"/><meta name="description" content="支持把部分 SRAM 挂载成 Tightly Coupled Memory (TCM)。TCM 的主要优势在于其内存区域由 CPU 独占访问,不会与其他外设发生总线竞争,这对某些需要高实时性的代码来说至关重要。TCM + SRAM + PSRAM 配置和 SRAM + PSRAM 配置的区别在于是否开启 TCM 上,本节仅描述两种配置的差异。 提供了 128K 的指令 TCM (ITCM) 和 ..."/><meta name="DC.relation" content="../../../topics/sdk/mem/d13x_mem_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/mem/d13x-mem-1-sram-psram.html"/><meta name="DC.relation" content="../../../topics/sdk/mem/d13x-mem-3-sram.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.modified" content="2024-01-15"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="d13x-mem-2-tcm-sram-psram"/><meta name="DC.language" content="zh-CN"/>
|
|||
|
|
<title>TCM + SRAM + PSRAM</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="d13x-mem-2-tcm-sram-psram-d5856e2501"/><meta name="wh-source-relpath" content="topics/sdk/mem/d13x-mem-2-tcm-sram-psram.dita"/><meta name="wh-out-relpath" content="topics/sdk/mem/d13x-mem-2-tcm-sram-psram.html"/>
|
|||
|
|
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2023110923"/>
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2023110923"/>
|
|||
|
|
|
|||
|
|
<script src="../../../webhelp/app/options/properties.js?buildId=20250121171154"></script>
|
|||
|
|
<script src="../../../webhelp/app/localization/strings.js?buildId=2023110923"></script>
|
|||
|
|
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250121171154"></script>
|
|||
|
|
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2023110923"></script>
|
|||
|
|
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2023110923"></script>
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2023110923"/></head>
|
|||
|
|
|
|||
|
|
<body id="d13x-mem-2-tcm-sram-psram" 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 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="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.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>
|
|||
|
|
</div>
|
|||
|
|
</header>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<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 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="chapter-system"><div class="title"><a href="../../../topics/chapter-title/chapter-system.html">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li><div class="topicref" data-id="chapter-memory"><div class="title"><a href="../../../topics/sdk/mem/memory-user-guide.html">Memory 使用指南</a></div></div></li><li><div class="topicref" data-id="d13x-mem-guide"><div class="title"><a href="../../../topics/sdk/mem/d13x_mem_guide.html"> 内存使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="d13x-mem-2-tcm-sram-psram"><div class="title"><a href="../../../topics/sdk/mem/d13x-mem-2-tcm-sram-psram.html">TCM + SRAM + PSRAM</a><div class="wh-tooltip"><p class="shortdesc"></p></div></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/mem/d13x-mem-1-sram-psram.html" title="SRAM + PSRAM" aria-label="上一主题: SRAM + PSRAM" rel="prev"></a></span>
|
|||
|
|
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/mem/d13x-mem-3-sram.html" title="SRAM" aria-label="下一主题: SRAM" 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-d5856e989" 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-d5856e989-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e1003" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e1003-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d5856e1003-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-d5856e1152" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e1152-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/sdk-usage.html" id="id-d5856e1152-link">使用指南</a><div class="wh-tooltip"><p class="shortdesc">系统镜像、编译选项、开发板、应用等相关的详细使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d5856e1416" 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-d5856e1416-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d5856e1416-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-d5856e2119" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2119-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d5856e2119-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-d5856e2244" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2244-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d5856e2244-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">在硬件上电后快速初始化系统,为操作系统的启动准备好必要的硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d5856e2345" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d5856e2345-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d5856e2345-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-d5856e2360" class="topicref" data-id="_0" data-state="not-ready"><spa
|
|||
|
|
|
|||
|
|
</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 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/mem/d13x-mem-2-tcm-sram-psram.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">TCM + SRAM + PSRAM</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
|||
|
|
Read time: 1 minute(s)
|
|||
|
|
</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/shortdesc shortdesc"></p><p class="- topic/p p" data-ofbid="d101506e20__20250121171536"> 支持把部分 SRAM 挂载成 Tightly Coupled Memory (TCM)。TCM 的主要优势在于其内存区域由
|
|||
|
|
CPU 独占访问,不会与其他外设发生总线竞争,这对某些需要高实时性的代码来说至关重要。TCM + SRAM + PSRAM 配置和<a class="- topic/xref xref" href="d13x-mem-1-sram-psram.html">SRAM + PSRAM</a> 配置的区别在于是否开启 TCM 上,本节仅描述两种配置的差异。</p><p class="- topic/p p" data-ofbid="d101506e26__20250121171536"> 提供了 128K 的指令 TCM (ITCM) 和 128K 的数据 TCM
|
|||
|
|
(DTCM),分别用于存储实时代码和实时数据。开启 TCM 功能后,SRAM_S0 空间就会对应的减少 256K,因为这部分内存会被重新分配给 ITCM 和 DTCM
|
|||
|
|
使用。</p><section class="- topic/section section" id="d13x-mem-2-tcm-sram-psram__section_jfq_ypj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__section_jfq_ypj_bdc"><h2 class="- topic/title title sectiontitle">内存布局和使用策略</h2>
|
|||
|
|
|
|||
|
|
<figure class="- topic/fig fig fignone" id="d13x-mem-2-tcm-sram-psram__fig_kfq_ypj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__fig_kfq_ypj_bdc"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="d13x-mem-2-tcm-sram-psram__image_yqn_gcd_bdc" src="../../../images/memory/d13x_mem_layout2.png" width="576" alt="d13x_mem_layout2"/></div><br/></figure>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e38__20250121171536">如图所示,针对 TCM Memory 资源,软件会使用以下策略来进行分配:</p>
|
|||
|
|
<ul class="- topic/ul ul" id="d13x-mem-2-tcm-sram-psram__ul_xwt_bcn_mdc" data-ofbid="d13x-mem-2-tcm-sram-psram__ul_xwt_bcn_mdc"><li class="- topic/li li" data-ofbid="d101506e42__20250121171536">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e44__20250121171536">将 TCM 划分为 <code class="+ topic/ph pr-d/codeph ph codeph">ITCM Region</code> 和 <code class="+ topic/ph pr-d/codeph ph codeph">DTCM Region</code>
|
|||
|
|
两个区域,分别用于实时代码和数据。</p>
|
|||
|
|
</li><li class="- topic/li li" data-ofbid="d101506e53__20250121171536">
|
|||
|
|
<div class="- topic/p p" data-ofbid="d101506e55__20250121171536">将每个 <span class="+ topic/keyword pr-d/parmname keyword parmname">Region</span> 进一步划分成以下子区域:<ul class="- topic/ul ul" id="d13x-mem-2-tcm-sram-psram__ul_sd4_tzj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__ul_sd4_tzj_bdc"><li class="- topic/li li" data-ofbid="d101506e61__20250121171536">静态分配 <span class="+ topic/keyword pr-d/parmname keyword parmname">Static</span>:编译链接后可确认地址。</li><li class="- topic/li li" data-ofbid="d101506e66__20250121171536">动态分配 <span class="+ topic/keyword pr-d/parmname keyword parmname">Heap</span>:Heap 内存池运行时确定地址。</li></ul></div>
|
|||
|
|
</li></ul>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d101506e73__20250121171536">综合上述策略,TCM 空间被软件划分成四块区域:<ul class="- topic/ul ul" id="d13x-mem-2-tcm-sram-psram__ul_brn_gcd_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__ul_brn_gcd_bdc"><li class="- topic/li li" data-ofbid="d101506e76__20250121171536"><code class="+ topic/ph pr-d/codeph ph codeph">ITCM Static</code>:ITCM 静态分配区域。<div class="- topic/p p" data-ofbid="d101506e80__20250121171536">通过在函数定义中加入
|
|||
|
|
<span class="+ topic/keyword pr-d/parmname keyword parmname">TCM_CODE_DEFINE</span>
|
|||
|
|
宏声明,可链接到此区域:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_qhr_hrj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_qhr_hrj_bdc"><em class="hl-comment">// 函数定义:</em>
|
|||
|
|
<strong class="hl-keyword">void</strong> TCM_CODE_DEFINE test_func(<strong class="hl-keyword">void</strong>);</pre></div></li><li class="- topic/li li" data-ofbid="d101506e87__20250121171536">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e89__20250121171536"><code class="+ topic/ph pr-d/codeph ph codeph">ITCM Heap</code>:ITCM 动态分配区域,即 <span class="+ topic/keyword pr-d/parmname keyword parmname">heap_itcm</span>
|
|||
|
|
内存池。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e97__20250121171536">可以通过以下函数从该内存池分配内存:</p>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_d5h_mpj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_d5h_mpj_bdc">aicos_malloc(MEM_ITCM, size);</pre>
|
|||
|
|
</li><li class="- topic/li li" data-ofbid="d101506e103__20250121171536">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e105__20250121171536"><code class="+ topic/ph pr-d/codeph ph codeph">DTCM Static</code>:DTCM 静态分配区域。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e110__20250121171536">通过在全局变量定义中加入 <span class="+ topic/keyword pr-d/parmname keyword parmname">TCM_DATA_DEFINE</span> 宏声明,可链接到此区域:</p>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_ypk_mpj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_ypk_mpj_bdc"><em class="hl-comment">// 全局变量定义:</em>
|
|||
|
|
TCM_DATA_DEFINE <strong class="hl-keyword">int</strong> a = <span class="hl-number">1</span>;</pre>
|
|||
|
|
</li><li class="- topic/li li" data-ofbid="d101506e119__20250121171536">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e121__20250121171536"><code class="+ topic/ph pr-d/codeph ph codeph">DTCM Heap</code>:DTCM 动态分配区域,即 <span class="+ topic/keyword pr-d/parmname keyword parmname">heap_dtcm</span>
|
|||
|
|
内存池。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e129__20250121171536">通过以下函数,可从该内存池分配内存:</p>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_dfm_mpj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_dfm_mpj_bdc">aicos_malloc(MEM_DTCM, size);</pre>
|
|||
|
|
</li></ul></div>
|
|||
|
|
</section><section class="- topic/section section" id="d13x-mem-2-tcm-sram-psram__id13" data-ofbid="d13x-mem-2-tcm-sram-psram__id13"><h2 class="- topic/title title sectiontitle">参数配置</h2>
|
|||
|
|
|
|||
|
|
<div class="- topic/p p" data-ofbid="d101506e141__20250121171536">通过 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">scons --menuconfig</span> 命令进入 menuconfig
|
|||
|
|
配置界面,配置下列 Meomry
|
|||
|
|
相关参数:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_rpw_yxm_mdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_rpw_yxm_mdc">Board options --->
|
|||
|
|
Mem Options ---></pre></div>
|
|||
|
|
<ul class="- topic/ul ul" id="d13x-mem-2-tcm-sram-psram__ul_krn_gcd_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__ul_krn_gcd_bdc"><li class="- topic/li li" data-ofbid="d101506e150__20250121171536">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d101506e152__20250121171536">使能 TCM 空间</p>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="d13x-mem-2-tcm-sram-psram__codeblock_ls4_mpj_bdc" data-ofbid="d13x-mem-2-tcm-sram-psram__codeblock_ls4_mpj_bdc">SRAM parameter --->
|
|||
|
|
[*] Enable TCM (Tightly Coupled Memory) <em class="hl-comment">// 开启 TCM 功能,SRAM_S0 空间相应的会减小 256k</em></pre>
|
|||
|
|
</li></ul>
|
|||
|
|
</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="#d13x-mem-2-tcm-sram-psram__section_jfq_ypj_bdc" data-tocid="d13x-mem-2-tcm-sram-psram__section_jfq_ypj_bdc">内存布局和使用策略</a></div></li><li class="section-item"><div class="section-title"><a href="#d13x-mem-2-tcm-sram-psram__id13" data-tocid="d13x-mem-2-tcm-sram-psram__id13">参数配置</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 © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
|||
|
|
</div><div>
|
|||
|
|
<div class="generation_time">
|
|||
|
|
Update Time: 2025-01-21
|
|||
|
|
</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>
|