The file system performs file operations on one of the physical interface device like SD card ,CF cards or USB. The APIs of file manipulation layer,SD card layer & CF cards layer is described in this section. The file system operations on USB as host is provided in 
AN1145: Using a USB Flash Drive with an Embedded Host page.
Topics
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Description |
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The File Manipulation Layer contains functions for manipulating files or functions to access the device that are common across all physical layers. | |
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The SD-SPI physical layer offers the ability to interface SD cards using the SPI protocol. | |
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The CF physical layer files offer two methods to interface the CF cards.
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