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data-id="concept_mcc_32s_nbc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mcc_32s_nbc-d3752e4043-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d3752e4043-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d3752e5544" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d3752e5544-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d3752e5544-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d3752e6799" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d3752e6799-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d3752e6799-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
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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">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/spinand/spi-nand_rtos_design_guide_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">RTOS 设计说明</h1>
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<section class="- topic/section section" id="spi_nand_rtos_design_intro_luban_lite__section_kcw_zwl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__section_kcw_zwl_f1c"><h2 class="- topic/title title sectiontitle">RTOS 源码说明</h2>
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<div class="table-container"><table class="- topic/table table frame-all" id="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c" data-cols="2"><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">RTOS 源码说明</span></caption><colgroup><col style="width:22.522522522522525%"/><col style="width:77.47747747747749%"/></colgroup><thead class="- topic/thead thead">
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<tr class="- topic/row">
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<th class="- topic/entry entry colsep-1 rowsep-1" id="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__1"><p class="- topic/p p" data-ofbid="d140147e54__20250519091520">相关模块</p></th>
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<th class="- topic/entry entry colsep-0 rowsep-1" id="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__2"><p class="- topic/p p" data-ofbid="d140147e58__20250519091520">源码路径</p></th>
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</tr>
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</thead><tbody class="- topic/tbody tbody">
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__1"><p class="- topic/p p" data-ofbid="d140147e68__20250519091520">mtd blk</p></td>
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<td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__2">
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<p class="- topic/p p" data-ofbid="d140147e73__20250519091520"><span class="+ topic/ph sw-d/filepath ph filepath">kernel/rt-thread/components/drivers/mtd/mtd_nand.c</span>
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//mtd 设备通用平台</p>
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<p class="- topic/p p" data-ofbid="d140147e78__20250519091520"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv/spinand/spinand_port.c</span>
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//mtd 设备通用平台对接</p>
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<p class="- topic/p p" data-ofbid="d140147e83__20250519091520"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv/spinand/spinand_block.c</span>
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//blk 设备接口实现</p>
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</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__1"><p class="- topic/p p" data-ofbid="d140147e93__20250519091520">spinand</p></td>
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<td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__2"><p class="- topic/p p" data-ofbid="d140147e97__20250519091520">bsp/peripheral/spinand/</p></td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__1"><p class="- topic/p p" data-ofbid="d140147e104__20250519091520">qspi</p></td>
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="spi_nand_rtos_design_intro_luban_lite__table_ttg_zwl_f1c__entry__2"><p class="- topic/p p" data-ofbid="d140147e108__20250519091520">bsp/artinchip/drv/qspi/drv_qspi.c</p></td>
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</tr>
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</tbody></table></div>
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</section>
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<section class="- topic/section section" id="spi_nand_rtos_design_intro_luban_lite__section_utg_zwl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__section_utg_zwl_f1c"><h2 class="- topic/title title sectiontitle">RTOS 层次关系</h2>
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<figure class="- topic/fig fig fignone" id="spi_nand_rtos_design_intro_luban_lite__fig_fjx_2xl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__fig_fjx_2xl_f1c">
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<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_nand_rtos_design_intro_luban_lite__image_vtg_zwl_f1c" src="../../../images/spinand/spinand_rtt.png" alt="rtt_spinand"/></div><br/>
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<figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">SPI NAND 驱动框架</span></figcaption></figure>
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<p class="- topic/p p" data-ofbid="d140147e133__20250519091520">mtd 设备用来挂载 uffs 文件系统，blk 设备用来挂载 FatFS 文件系统。</p>
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</section>
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<section class="- topic/section section" id="spi_nand_rtos_design_intro_luban_lite__section_q5g_gxl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__section_q5g_gxl_f1c"><h2 class="- topic/title title sectiontitle">RTOS 关键流程</h2>
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<div class="- topic/p p" data-ofbid="d140147e142__20250519091520">
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<ul class="- topic/ul ul" id="spi_nand_rtos_design_intro_luban_lite__ul_ipv_gxl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__ul_ipv_gxl_f1c">
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<li class="- topic/li li" data-ofbid="d140147e146__20250519091520">SPI NAND
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初始化流程<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nand_rtos_design_intro_luban_lite__codeblock_ngq_3xl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__codeblock_ngq_3xl_f1c">rt_hw_spinand_register <em class="hl-comment">//bsp/artinchip/drv/spinand/spinand_port.c</em>
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|-> aic_qspi_bus_attach_device(<span class="hl-string">"qspi0"</span>, <span class="hl-string">"spinand0"</span>, <span class="hl-number">0</span>, <span class="hl-number">4</span>, RT_NULL, RT_NULL); <em class="hl-comment">//创建 qspi 总线</em>
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|-> rt_hw_mtd_spinand_register(<span class="hl-string">"spinand0"</span>);
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|-> rt_hw_mtd_spinand_init(spinand);
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|-> spinand_flash_init(flash); <em class="hl-comment">//bsp/peripheral/spinand/spinand.c</em>
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|-> spinand_info_read(flash);
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|-> nand_bbt_init(flash);
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|-> mtd_parts_parse(IMAGE_CFG_JSON_PARTS_MTD);
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|-> rt_mtd_nand_register_device(p->name, &g_mtd_partitions[i]); <em class="hl-comment">//注册 mtd 设备</em>
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|-> rt_blk_nand_register_device(p->name, &g_mtd_partitions[i]); <em class="hl-comment">//注册 block 设备</em></pre></li>
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<li class="- topic/li li" data-ofbid="d140147e151__20250519091520">读数据流程<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nand_rtos_design_intro_luban_lite__codeblock_jr5_3xl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__codeblock_jr5_3xl_f1c">mtd_read <em class="hl-comment">//kernel/rt-thread/components/drivers/mtd/mtd_nand.c</em>
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|-> spinand_mtd_read(device ...) <em class="hl-comment">//bsp/artinchip/drv/spinand/spinand_port.c</em>
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|-> spinand_read(flash, data, start, dolen); <em class="hl-comment">//bsp/peripheral/spinand/spinand.c</em>
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|-> spinand_block_isbad(flash, blk);
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|-> spinand_read_page(flash, page, p, flash->info->page_size, NULL, <span class="hl-number">0</span>);
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|-> spinand_load_page_op(flash, page);
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|-> spinand_read_from_cache_op(flash, column, buf, nbytes);</pre></li>
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<li class="- topic/li li" data-ofbid="d140147e156__20250519091520">blk
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设备读数据流程<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nand_rtos_design_intro_luban_lite__codeblock_vfw_3xl_f1c" data-ofbid="spi_nand_rtos_design_intro_luban_lite__codeblock_vfw_3xl_f1c">rt_spinand_read <em class="hl-comment">//bsp/artinchip/drv/spinand/spinand_block.c</em>
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|-> spinand_mtd_read(device ...) <em class="hl-comment">//bsp/artinchip/drv/spinand/spinand_port.c</em>
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|-> spinand_read(flash, data, start, dolen); <em class="hl-comment">//bsp/peripheral/spinand/spinand.c</em>
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|-> spinand_block_isbad(flash, blk);
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|-> spinand_read_page(flash, page, p, flash->info->page_size, NULL, <span class="hl-number">0</span>);
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|-> spinand_load_page_op(flash, page);
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|-> spinand_read_from_cache_op(flash, column, buf, nbytes);</pre></li>
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</ul>
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</section>
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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="#spi_nand_rtos_design_intro_luban_lite__section_kcw_zwl_f1c" data-tocid="spi_nand_rtos_design_intro_luban_lite__section_kcw_zwl_f1c">RTOS 源码说明</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nand_rtos_design_intro_luban_lite__section_utg_zwl_f1c" data-tocid="spi_nand_rtos_design_intro_luban_lite__section_utg_zwl_f1c">RTOS 层次关系</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nand_rtos_design_intro_luban_lite__section_q5g_gxl_f1c" data-tocid="spi_nand_rtos_design_intro_luban_lite__section_q5g_gxl_f1c">RTOS 关键流程</a></div></li></ul></div>
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