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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-ram.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">内存配置</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"><p class="- topic/p p" data-ofbid="d198454e19__20250121171633"><span class="- topic/ph ph">Luban-Lite</span> SDK
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支持多个芯片平台，而各个平台的内存种类和内存大小也不同，正确的进行内存配置会使系统运行更高效。</p><div class="- topic/p p" data-ofbid="d198454e23__20250121171633">遵照以下流程，配置芯片平台的内存参数：<ol class="- topic/ol ol" id="id__ol_o31_jm1_bdc" data-ofbid="id__ol_o31_jm1_bdc"><li class="- topic/li li" data-ofbid="d198454e26__20250121171633">在 SDK 的根目录，运行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span> 命令，启动 menuconfig 界面。</li><li class="- topic/li li" data-ofbid="d198454e31__20250121171633">在 menuconfig 界面中，导航到 <span class="+ topic/ph ui-d/menucascade ph menucascade"><span class="+ topic/ph ui-d/uicontrol ph uicontrol">Boardoptions</span><abbr> > </abbr><span class="+ topic/ph ui-d/uicontrol ph uicontrol">MemOptions</span></span> 配置选项。</li><li class="- topic/li li" data-ofbid="d198454e39__20250121171633">根据<a class="- topic/xref xref" href="lite-bringup-ram.html#id__section_xt2_pr1_bdc">芯片平台型号</a>、<a class="- topic/xref xref" href="lite-bringup-ram.html#id__section_plw_2r1_bdc">存储类型</a>和内存规格，配置相应内存的参数，包括总大小、CMA 内存大小等。<ul class="- topic/ul ul" id="id__ul_dbx_wvq_ndc" data-ofbid="id__ul_dbx_wvq_ndc"><li class="- topic/li li" data-ofbid="d198454e50__20250121171633">
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<div class="- topic/p p" data-ofbid="d198454e52__20250121171633"><strong class="+ topic/ph hi-d/b ph b">DRAM</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_sjc_vm1_bdc" data-ofbid="id__codeblock_sjc_vm1_bdc">Board options > Mem Options > DRAM parameter
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(<span class="hl-number">0x8000000</span>) DRAM Total Size <em class="hl-comment">//DRAM 128M</em>
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(<span class="hl-number">0x2000000</span>) CMA mem size <em class="hl-comment">//CMA 32M</em></pre></div>
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</li><li class="- topic/li li" data-ofbid="d198454e58__20250121171633">
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<div class="- topic/p p" data-ofbid="d198454e60__20250121171633"><strong class="+ topic/ph hi-d/b ph b">SRAM</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_xff_vm1_bdc" data-ofbid="id__codeblock_xff_vm1_bdc">Board options > Mem Options > SRAM parameter
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(<span class="hl-number">0x100000</span>) SRAM Total Size <em class="hl-comment">//SRAM 1M</em>
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[ ] Enable TCM (Tightly Coupled Memory) <em class="hl-comment">//不设置</em>
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SRAM_S1 Size (<span class="hl-number">0</span>K) <em class="hl-comment">//G73x UI 展示时设置</em>
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(<span class="hl-number">0x0</span>) Software size in SRAM_S1 <em class="hl-comment">//G73x UI 展示时设置</em>
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(<span class="hl-number">0x40000</span>) Bootloader reserve size <em class="hl-comment">//Bootloader 位置，不修改</em></pre></div>
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</li><li class="- topic/li li" data-ofbid="d198454e66__20250121171633">
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<div class="- topic/p p" data-ofbid="d198454e68__20250121171633"><strong class="+ topic/ph hi-d/b ph b">PSRAM</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_hyg_vm1_bdc" data-ofbid="id__codeblock_hyg_vm1_bdc">(<span class="hl-number">0x800000</span>) PSRAM size <em class="hl-comment">//PSRAM 8M</em>
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(<span class="hl-number">0x0</span>) Software size in PSRAM <em class="hl-comment">//Software 区域大小为 0，CMA 区域大小即为 8M - 0 = 8M</em></pre></div>
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</li></ul></li><li class="- topic/li li" data-ofbid="d198454e74__20250121171633">保存并退出
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menuconfig 界面。</li><li class="- topic/li li" data-ofbid="d198454e77__20250121171633">运行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span> 命令以启动 menuconfig 界面，并在 menuconfig
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界面中配置下列栈参数：<ul class="- topic/ul ul" id="id__ul_gsp_fn1_bdc" data-ofbid="id__ul_gsp_fn1_bdc"><li class="- topic/li li" data-ofbid="d198454e84__20250121171633"><strong class="+ topic/ph hi-d/b ph b">中断栈</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_gdh_hn1_bdc" data-ofbid="id__codeblock_gdh_hn1_bdc">Board options > Mem Options > Interrupt stack size</pre></li><li class="- topic/li li" data-ofbid="d198454e89__20250121171633"><strong class="+ topic/ph hi-d/b ph b">主线程栈</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_pwj_hn1_bdc" data-ofbid="id__codeblock_pwj_hn1_bdc">Rt-Thread options > RT-Thread Components > Set main thread stack size</pre></li><li class="- topic/li li" data-ofbid="d198454e94__20250121171633"><strong class="+ topic/ph hi-d/b ph b">MSH
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栈</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_k1l_hn1_bdc" data-ofbid="id__codeblock_k1l_hn1_bdc">Rt-Thread options > RT-Thread Components > MSH: command shell > The stack size <strong class="hl-keyword">for</strong> thread</pre></li></ul></li><li class="- topic/li li" data-ofbid="d198454e99__20250121171633">保存配置并退出 menuconfig 界面。</li></ol></div><section class="- topic/section section" id="id__section_plw_2r1_bdc" data-ofbid="id__section_plw_2r1_bdc"><h2 class="- topic/title title sectiontitle">内存分类</h2>
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<div class="- topic/p p" data-ofbid="d198454e106__20250121171633">内存可以按照以下两种方式进行分类：<ul class="- topic/ul ul" id="id__ul_jq3_lr1_bdc" data-ofbid="id__ul_jq3_lr1_bdc"><li class="- topic/li li" data-ofbid="d198454e109__20250121171633">按照存储类型划分：<ul class="- topic/ul ul" id="id__ul_as3_hr1_bdc" data-ofbid="id__ul_as3_hr1_bdc"><li class="- topic/li li" data-ofbid="d198454e112__20250121171633">DRAM：动态 RAM，又称 DDR<p class="- topic/p p" data-ofbid="d198454e114__20250121171633">典型代表平台：D21x </p></li><li class="- topic/li li" data-ofbid="d198454e116__20250121171633">SRAM：静态 RAM，又称高速缓存<p class="- topic/p p" data-ofbid="d198454e118__20250121171633">典型代表平台：D13x </p></li><li class="- topic/li li" data-ofbid="d198454e120__20250121171633">PSRAM：伪静态 RAM<p class="- topic/p p" data-ofbid="d198454e122__20250121171633">典型代表平台：D13x，D12x</p></li></ul></li><li class="- topic/li li" data-ofbid="d198454e124__20250121171633">按照应用场景划分<ul class="- topic/ul ul simple" id="id__ul_ocx_nr1_bdc" data-ofbid="id__ul_ocx_nr1_bdc"><li class="- topic/li li" data-ofbid="d198454e127__20250121171633">
|
||
<p class="- topic/p p" data-ofbid="d198454e129__20250121171633">Software region：支持堆和栈的动态分配，由操作系统管理</p>
|
||
</li><li class="- topic/li li" data-ofbid="d198454e132__20250121171633">
|
||
<p class="- topic/p p" data-ofbid="d198454e134__20250121171633">CAM region：连续内存区域，预留给 framebuffer，视频，图片等解码使用</p>
|
||
</li></ul></li></ul></div>
|
||
</section><section class="- topic/section section" id="id__section_xt2_pr1_bdc" data-ofbid="id__section_xt2_pr1_bdc"><h2 class="- topic/title title sectiontitle">平台统计</h2>
|
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|
||
<div class="table-container"><table class="- topic/table table docutils align-default frame-all" id="id__table_o52_pr1_bdc" data-ofbid="id__table_o52_pr1_bdc" data-cols="6"><caption></caption><colgroup><col style="width:12.5%"/><col style="width:12.5%"/><col style="width:12.5%"/><col style="width:12.5%"/><col style="width:12.5%"/><col style="width:37.5%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row row-odd"><th class="- topic/entry entry head colsep-1 rowsep-1" id="id__table_o52_pr1_bdc__entry__1">平台型号</th><th class="- topic/entry entry head colsep-1 rowsep-1" id="id__table_o52_pr1_bdc__entry__2">DRAM</th><th class="- topic/entry entry head colsep-1 rowsep-1" id="id__table_o52_pr1_bdc__entry__3">SRAM</th><th class="- topic/entry entry head colsep-1 rowsep-1" id="id__table_o52_pr1_bdc__entry__4">PSRAM</th><th class="- topic/entry entry head colsep-1 rowsep-1" id="id__table_o52_pr1_bdc__entry__5">CMA</th><th class="- topic/entry entry head colsep-0 rowsep-1" id="id__table_o52_pr1_bdc__entry__6">说明</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row row-even"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D21xxBx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">64M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">22M</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_o52_pr1_bdc__entry__6" rowspan="2">
|
||
<p class="- topic/p p" data-ofbid="d198454e179__20250121171633">CMA 可供系统使用,</p>
|
||
<p class="- topic/p p" data-ofbid="d198454e182__20250121171633">配合 mpp heap 一块调大</p>
|
||
</td></tr><tr class="- topic/row row-odd"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D21xxCx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">128M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">32M</td></tr><tr class="- topic/row row-even"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D13xxAx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">512K</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">4M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">4M</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_o52_pr1_bdc__entry__6" rowspan="7">Software Region 可以共享 CMA</td></tr><tr class="- topic/row row-odd"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D13xxBx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">1M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">8M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">8M</td></tr><tr class="- topic/row row-even"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D13xxCx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">1M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">16M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">8M</td></tr><tr class="- topic/row row-odd"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D12xxAx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">1M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">4M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">2M</td></tr><tr class="- topic/row row-even"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D12xxBx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">8M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">4M</td></tr><tr class="- topic/row row-odd"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__1">D12xxCx</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__3">X</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__4">16M</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_o52_pr1_bdc__entry__5">8M</td></tr><tr class="- topic/row row-even"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_o52_pr1_bdc__entry__1">G73x</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_o52_pr1_bdc__entry__2">X</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_o52_pr1_bdc__entry__3">1M</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_o52_pr1_bdc__entry__4">X</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_o52_pr1_bdc__entry__5">756K</td></tr></tbody></table></div>
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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="#id__section_plw_2r1_bdc" data-tocid="id__section_plw_2r1_bdc">内存分类</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_xt2_pr1_bdc" data-tocid="id__section_xt2_pr1_bdc">平台统计</a></div></li></ul></div>
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