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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/dma/dma-test-guide-lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">测试指南</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body body"><section class="- topic/section section" id="id__id2" data-ofbid="id__id2"><h2 class="- topic/title title sectiontitle">准备测试环境</h2>
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<ul class="- topic/ul ul" id="id__id3" data-ofbid="id__id3"><li class="- topic/li li" data-ofbid="d77314e25__20250121171524"><strong class="+ topic/ph hi-d/b ph b">硬件</strong><ul class="- topic/ul ul simple" id="id__ul_wrj_h3d_bdc" data-ofbid="id__ul_wrj_h3d_bdc"><li class="- topic/li li" data-ofbid="d77314e29__20250121171524">
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<p class="- topic/p p" data-ofbid="d77314e31__20250121171524">开发板</p>
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</li></ul></li><li class="- topic/li li" id="id__id4" data-ofbid="id__id4"><strong class="+ topic/ph hi-d/b ph b">软件</strong>
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<ul class="- topic/ul ul simple" id="id__ul_xrj_h3d_bdc" data-ofbid="id__ul_xrj_h3d_bdc"><li class="- topic/li li" data-ofbid="d77314e39__20250121171524">
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<p class="- topic/p p" data-ofbid="d77314e41__20250121171524">PC
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端的串口终端软件，用于
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PC
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和开发板进行串口通信</p>
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</li><li class="- topic/li li" data-ofbid="d77314e44__20250121171524">
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<p class="- topic/p p" data-ofbid="d77314e46__20250121171524"><span class="- topic/ph ph">Luban-Lite</span> 自带的 test-dma 工具</p>
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<div class="- topic/note note note note_note" id="id__note_c24_s2p_mdc" data-ofbid="id__note_c24_s2p_mdc"><span class="note__title">注：</span> test-dma 只限于测试 Mem To Mem 的数据传输操作类型。</div>
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</li></ul></li></ul>
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</section><section class="- topic/section section" id="id__id5" data-ofbid="id__id5"><h2 class="- topic/title title sectiontitle">使能 test-dma 命令工具</h2>
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<div class="- topic/p p" data-ofbid="d77314e60__20250121171524">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">scons --menuconfig</span>，进入 menuconfig
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的功能配置界面，按如下选择使能 DMA 驱动测试命令工具：
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_gby_bfy_bdc" data-ofbid="id__codeblock_gby_bfy_bdc">Drivers options --->
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Drivers examples --->
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[*] Enable DMA driver test command</pre></div>
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</section><section class="- topic/section section" id="id__section_hfk_hpf_fdc" data-ofbid="id__section_hfk_hpf_fdc"><h2 class="- topic/title title sectiontitle">执行 test-dma
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测试</h2>
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<div class="- topic/p p" data-ofbid="d77314e76__20250121171524">
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<ul class="- topic/ul ul simple" id="id__ul_asj_h3d_bdc" data-ofbid="id__ul_asj_h3d_bdc"><li class="- topic/li li" data-ofbid="d77314e79__20250121171524">
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<div class="- topic/p p" data-ofbid="d77314e81__20250121171524">执行下列命令测试 DMA 控制器的 Mem to Mem 的 copy
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操作：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_hcf_3fp_mdc" data-ofbid="id__codeblock_hcf_3fp_mdc">test_dma_memcpy</pre></div>
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<div class="- topic/p p" data-ofbid="d77314e86__20250121171524">例如，使用 DMA 从源地址 (0x40d8f100) 拷贝 512 字节到目标地址
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(0x40d8f380)，执行下列命令：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_n34_gdk_5dc" data-ofbid="id__codeblock_n34_gdk_5dc">test_dma_memcpy <span class="hl-number">512</span></pre></div>
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<div class="- topic/p p" data-ofbid="d77314e91__20250121171524">输出示例如下，表示
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DMA 传输完成，并触发回调函数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_otm_xbk_5dc" data-ofbid="id__codeblock_otm_xbk_5dc">DMA memcpy test: src = <span class="hl-number">0x40d8f100</span>, dest = <span class="hl-number">0x40d8f380</span>, len = <span class="hl-number">0x200</span>
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DMA complete, callback....
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DMA test succeed!
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DMA memcpy <span class="hl-number">512</span> bytes, speed <span class="hl-number">0.08</span> MB/s</pre></div>
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</li><li class="- topic/li li" data-ofbid="d77314e96__20250121171524">
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<div class="- topic/p p" data-ofbid="d77314e98__20250121171524">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">dma_dump</span> 查看 DMA 通道状态，例如查看 DMA 通道 0
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的详细信息，包括寄存器状态和配置：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_kq2_npt_mdc" data-ofbid="id__codeblock_kq2_npt_mdc">dma_dump <span class="hl-number">0</span></pre></div>
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<div class="- topic/p p" data-ofbid="d77314e106__20250121171524">输出示例如下所示：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_usm_ybk_5dc" data-ofbid="id__codeblock_usm_ybk_5dc">DMA Ch0: desc = <span class="hl-number">0x0</span>
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Common <strong class="hl-keyword">register</strong>:
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IRQ_EN <span class="hl-number">0x4</span>, IRQ_STA <span class="hl-number">0x0</span>, CH_STA <span class="hl-number">0x0</span>, GATE <span class="hl-number">0x0</span>
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Ch0 <strong class="hl-keyword">register</strong>:
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Enable <span class="hl-number">0x0</span>, Mode <span class="hl-number">0x0</span>, Pause <span class="hl-number">0x0</span>
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Task <span class="hl-number">0xfffff800</span>, Config <span class="hl-number">0x4c004c0</span>, Src <span class="hl-number">0x40d8f304</span>, Sink <span class="hl-number">0x40d8f584</span>
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Left <span class="hl-number">0x0</span>, Package_cnt <span class="hl-number">1</span></pre></div>
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</li><li class="- topic/li li" data-ofbid="d77314e111__20250121171524">
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<p class="- topic/p p" data-ofbid="d77314e113__20250121171524"><span class="+ topic/keyword sw-d/cmdname keyword cmdname">test_dma_memset</span>：测试 DMA 控制器的 memset
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功能</p>
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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__id2" data-tocid="id__id2">准备测试环境</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id5" data-tocid="id__id5">使能 test-dma 命令工具</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_hfk_hpf_fdc" data-tocid="id__section_hfk_hpf_fdc">执行 test-dma
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测试</a></div></li></ul></div>
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