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Read time: 2 minute(s)
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< p class = "- topic/p p" data-ofbid = "d83569e30__20250519091513" > < span class = "- topic/ph ph" > Luban-Lite< / span > 上使用 RT-Thread
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时，每个分区都对应一个或者多个系统设备。不同存储介质的对应关系如下表格所示。系统中出现但此处未列出的其它分区，同样遵循下列规则。< / p >
< div class = "table-container" > < table class = "- topic/table table longtable colwidths-given docutils align-default frame-all" id = "partition-and-storage-relations__id10" data-ofbid = "partition-and-storage-relations__id10" data-cols = "5" > < 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" > SPI NOR 上的分区、设备和文件系统< / span > < / caption > < colgroup > < col style = "width:16.707920792079207%" / > < col style = "width:16.707920792079207%" / > < col style = "width:16.707920792079207%" / > < col style = "width:12.376237623762377%" / > < col style = "width:37.5%" / > < / colgroup > < thead class = "- topic/thead thead" >
< tr class = "- topic/row" >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id10__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e59__20250519091513" > 分区名< / p >
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< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id10__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e65__20250519091513" > MTD 设备名< / p >
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< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id10__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e71__20250519091513" > 块设备名< / p >
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< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id10__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e77__20250519091513" > 文件系统< / p >
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< / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "partition-and-storage-relations__id10__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e83__20250519091513" > 备注< / p >
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< / th >
< / tr >
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< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e95__20250519091513" > "spl" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e101__20250519091513" > "spl" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e107__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e113__20250519091513" > -< / p >
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< / td >
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< p class = "- topic/p p" data-ofbid = "d83569e119__20250519091513" > -< / p >
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< / td >
< / tr >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e128__20250519091513" > "os" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e134__20250519091513" > "os" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e140__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e146__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id10__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e152__20250519091513" > -< / p >
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< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e161__20250519091513" > "rodata" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e167__20250519091513" > "rodata" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e173__20250519091513" > "blk_rodata" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id10__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e179__20250519091513" > FATFS< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id10__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e185__20250519091513" > FATFS 通过 "blk_rodata" 设备访问 Flash< / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id10__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e194__20250519091513" > "data" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id10__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e200__20250519091513" > "data" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id10__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e206__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id10__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e212__20250519091513" > LittleFS< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "partition-and-storage-relations__id10__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e218__20250519091513" > LittleFS 直接通过 MTD 设备访问 Flash< / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< / tbody > < / table > < / div >
< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_xbz_pjy_5cc" data-ofbid = "partition-and-storage-relations__ul_xbz_pjy_5cc" >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e228__20250519091513" > 分区名：< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_ocj_zjy_5cc" data-ofbid = "partition-and-storage-relations__ul_ocj_zjy_5cc" >
< li class = "- topic/li li" data-ofbid = "d83569e232__20250519091513" > "spl"：分区及其设备名，"spl" 分区主要用于存储二次引导加载程序，是系统启动的第一个阶段所加载的程序。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e235__20250519091513" > "os"： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e238__20250519091513" > "rodata"： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e241__20250519091513" > "data"： < / li >
2025-04-23 17:54:31 +08:00
< / ul > < / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e245__20250519091513" > MTD 设备名：对 Flash 的底层直接访问，便于进行读写硬件等操作。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e248__20250519091513" > 块设备名：通过将物理存储抽象为块设备，简化了对文件系统的操作。仅 "rodata" 分区关联了一个块设备名 "blk_rodata"。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e251__20250519091513" > 文件系统："rodata" 分区使用 FATFS 文件系统，使得数据以文件的形式进行存储和管理。"data" 分区使用 LittleFS 文件系统。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e254__20250519091513" > 访问规则：< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_bst_25n_hdc" data-ofbid = "partition-and-storage-relations__ul_bst_25n_hdc" >
< li class = "- topic/li li" data-ofbid = "d83569e258__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d83569e260__20250519091513" > 直接访问 Flash， < / p >
2025-04-23 17:54:31 +08:00
< / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e264__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d83569e266__20250519091513" > FATFS 访问 Flash， < / p >
2025-04-23 17:54:31 +08:00
< / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e270__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d83569e272__20250519091513" > LittleFS 访问 Flash， < / p >
2025-04-23 17:54:31 +08:00
< / li >
< / ul > < / li >
< / ul >
< div class = "table-container" > < table class = "- topic/table table longtable colwidths-given docutils align-default frame-all" id = "partition-and-storage-relations__id11" data-ofbid = "partition-and-storage-relations__id11" data-cols = "5" > < 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" > 2< / span > < span class = "table--title-label-punctuation" > . < / span > < / span > < span class = "table--title" > SPI NAND 上的分区、设备和文件系统< / span > < / caption > < colgroup > < col style = "width:11.014176663031625%" / > < col style = "width:14.394765539803709%" / > < col style = "width:14.067611777535442%" / > < col style = "width:10.905125408942203%" / > < col style = "width:49.61832061068702%" / > < / colgroup > < thead class = "- topic/thead thead" >
< tr class = "- topic/row" >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id11__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e302__20250519091513" > 分区名字< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id11__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e308__20250519091513" > MTD 设备名< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id11__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e314__20250519091513" > 块设备名< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id11__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e320__20250519091513" > 文件系统< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "partition-and-storage-relations__id11__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e326__20250519091513" > 备注< / p >
2025-04-23 17:54:31 +08:00
< / th >
< / tr >
< / thead > < tbody class = "- topic/tbody tbody" >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e338__20250519091513" > "spl" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e344__20250519091513" > "spl" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e350__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e356__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id11__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e362__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e371__20250519091513" > "os" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e377__20250519091513" > "os" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e383__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e389__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id11__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e395__20250519091513" > -< / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e404__20250519091513" > "rodata" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e410__20250519091513" > "rodata" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e416__20250519091513" > "blk_rodata" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id11__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e422__20250519091513" > FATFS< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id11__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e428__20250519091513" > 通过 "blk_rodata" 设备访问 Flash， < / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id11__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e437__20250519091513" > "data" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id11__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e443__20250519091513" > "data" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id11__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e449__20250519091513" > "blk_data" < / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id11__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e455__20250519091513" > FATFS< / p >
2025-04-23 17:54:31 +08:00
< / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "partition-and-storage-relations__id11__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e461__20250519091513" > "blk_data"设备是通过 NFTL 层创建，< / p >
< p class = "- topic/p p" data-ofbid = "d83569e464__20250519091513" > FATFS 访问 "blk_data" 时，通过 NFTL 访问 Flash。< / p >
2025-04-23 17:54:31 +08:00
< / td >
< / tr >
< / tbody > < / table > < / div >
< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_s5j_3nq_gdc" data-ofbid = "partition-and-storage-relations__ul_s5j_3nq_gdc" >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e474__20250519091513" > 分区名：< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_wlb_5ky_5cc" data-ofbid = "partition-and-storage-relations__ul_wlb_5ky_5cc" >
< li class = "- topic/li li" data-ofbid = "d83569e478__20250519091513" > "spl"：分区及其设备名，"spl" 分区主要用于存储 二次引导加载程序，是系统启动的第一个阶段所加载的程序。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e481__20250519091513" > "os"： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e484__20250519091513" > "rodata"： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e487__20250519091513" > "data"： < / li >
2025-04-23 17:54:31 +08:00
< / ul > < / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e491__20250519091513" > MTD 设备名：对 Flash 的底层直接访问，便于进行读写硬件等操作。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e494__20250519091513" > 块设备名：通过将物理存储抽象为块设备，简化了对文件系统的操作。"blk_rodata" 和 "blk_data" 分别支持对 "rodata" 和 "data"
2025-04-23 17:54:31 +08:00
分区的文件系统访问。< / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e497__20250519091513" > 文件系统："rodata" 分区使用 FATFS 文件系统，使得数据以文件的形式进行存储和管理。"data" 分区使用 FATFS 文件系统。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e500__20250519091513" > NFTL 层：网络闪存转换层，主要用来将 Flash 的物理特性映射为一般块设备，便于 FATFS 等文件系统无需关心底层 NAND Flash 的具体特性。< div class = "- topic/note note note note_note" id = "partition-and-storage-relations__note_dr3_4mq_gdc" data-ofbid = "partition-and-storage-relations__note_dr3_4mq_gdc" > < span class = "note__title" > 注：< / span >
< p class = "- topic/p p" data-ofbid = "d83569e504__20250519091513" > 建议只设置一个使用 NFTL 的分区，并且分区不要太小。因为 NFTL 需要预留至少 6 MB 空间做坏块管理。< / p >
2025-04-23 17:54:31 +08:00
< / div > < / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e509__20250519091513" > 访问规则：< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_oxj_f5n_hdc" data-ofbid = "partition-and-storage-relations__ul_oxj_f5n_hdc" >
< li class = "- topic/li li" data-ofbid = "d83569e513__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d83569e515__20250519091513" > 直接访问 Flash， < / p >
2025-04-23 17:54:31 +08:00
< / li >
2025-07-22 11:15:46 +08:00
< li class = "- topic/li li" data-ofbid = "d83569e519__20250519091513" >
< p class = "- topic/p p" data-ofbid = "d83569e521__20250519091513" > FATFS 访问 Flash， ， < / p >
2025-04-23 17:54:31 +08:00
< / li >
< / ul > < / li >
< / ul >
< div class = "table-container" > < table class = "- topic/table table longtable colwidths-given docutils align-default frame-all" id = "partition-and-storage-relations__id12" data-ofbid = "partition-and-storage-relations__id12" data-cols = "5" > < 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" > 3< / span > < span class = "table--title-label-punctuation" > . < / span > < / span > < span class = "table--title" > eMMC 上的分区、设备和文件系统< / span > < / caption > < colgroup > < col style = "width:16.770186335403725%" / > < col style = "width:16.770186335403725%" / > < col style = "width:16.770186335403725%" / > < col style = "width:12.422360248447204%" / > < col style = "width:37.267080745341616%" / > < / colgroup > < thead class = "- topic/thead thead" >
< tr class = "- topic/row" >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id12__entry__1" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e552__20250519091513" > 分区名字< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id12__entry__2" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e558__20250519091513" > MTD 设备名< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id12__entry__3" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e564__20250519091513" > 块设备名< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "partition-and-storage-relations__id12__entry__4" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e570__20250519091513" > 文件系统< / p >
2025-04-23 17:54:31 +08:00
< / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "partition-and-storage-relations__id12__entry__5" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d83569e576__20250519091513" > 备注< / p >
2025-04-23 17:54:31 +08:00
< / th >
< / tr >
< / thead > < tbody class = "- topic/tbody tbody" >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e588__20250519091513" > "spl" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e594__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e600__20250519091513" > < code class = "+ topic/ph pr-d/codeph ph codeph" > mmc0p0< / code >
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< / p >
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e608__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id12__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e614__20250519091513" > -< / p >
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< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e623__20250519091513" > "os" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e629__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e635__20250519091513" > < code class = "+ topic/ph pr-d/codeph ph codeph" > mmc0p1< / code >
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< / p >
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e643__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id12__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e649__20250519091513" > -< / p >
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< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e658__20250519091513" > "rodata" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e664__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e670__20250519091513" > < code class = "+ topic/ph pr-d/codeph ph codeph" > mmc0p2< / code >
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< / p >
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "partition-and-storage-relations__id12__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e678__20250519091513" > FATFS< / p >
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< / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "partition-and-storage-relations__id12__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e684__20250519091513" > 此处的分区排序仅为示例< / p >
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< / td >
< / tr >
< tr class = "- topic/row" >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id12__entry__1" >
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< p class = "- topic/p p" data-ofbid = "d83569e693__20250519091513" > "data" < / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id12__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d83569e699__20250519091513" > -< / p >
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< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id12__entry__3" >
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< p class = "- topic/p p" data-ofbid = "d83569e705__20250519091513" > < code class = "+ topic/ph pr-d/codeph ph codeph" > mmc0p3< / code >
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< / p >
< / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "partition-and-storage-relations__id12__entry__4" >
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< p class = "- topic/p p" data-ofbid = "d83569e713__20250519091513" > FATFS< / p >
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< / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "partition-and-storage-relations__id12__entry__5" >
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< p class = "- topic/p p" data-ofbid = "d83569e719__20250519091513" > 此处的分区排序仅为示例< / p >
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< / td >
< / tr >
< / tbody > < / table > < / div >
< ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_gtf_yly_5cc" data-ofbid = "partition-and-storage-relations__ul_gtf_yly_5cc" >
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< li class = "- topic/li li" data-ofbid = "d83569e729__20250519091513" > < strong class = "+ topic/ph hi-d/b ph b" > 分区名< / strong > ： < ul class = "- topic/ul ul" id = "partition-and-storage-relations__ul_htf_yly_5cc" data-ofbid = "partition-and-storage-relations__ul_htf_yly_5cc" >
< li class = "- topic/li li" data-ofbid = "d83569e735__20250519091513" > "spl"：分区及其设备名，"spl" 分区主要用于存储 二次引导加载程序，是系统启动的第一个阶段所加载的程序。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e738__20250519091513" > "os"： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e741__20250519091513" > "rodata" ： < / li >
< li class = "- topic/li li" data-ofbid = "d83569e744__20250519091513" > "data"： < / li >
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< / ul > < / li >
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< li class = "- topic/li li" data-ofbid = "d83569e748__20250519091513" > MTD 设备名：对 Flash 的底层直接访问，便于进行读写硬件等操作。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e751__20250519091513" > 块设备名：块设备按照分区顺序从 0 开始编号，例如从 mmc0p0 到 mmc0p3。每个块设备代表 eMMC
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中的一个分区，简化了物理存储到逻辑存储的映射，便于后续的文件系统管理。< / li >
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< li class = "- topic/li li" data-ofbid = "d83569e754__20250519091513" > 文件系统："rodata" 和 "data" 分区均使用 FATFS 文件系统。< / li >
< li class = "- topic/li li" data-ofbid = "d83569e757__20250519091513" > 访问规则：块设备的命名，按照分区的排序从 0 开始编号< / li >
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< / ul >
< / div >
< / article > < / main > < / div >
< / div >
< / 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 © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
< div class = "generation_time" >
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Update Time: 2025-05-19
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< / 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 >
