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This page gives an overview of the XILFFS library.
Table of ContentsTable of Contents
Introduction
This page provides details related to the xilffs library.
- The LibXil fat file system (FFS) library consists of a file system and a glue layer. This FAT file system can be used with an interface supported in the glue layer.
- The file system code is open source and is used as it is. Glue layer implementation supports SD/eMMC interface presently.
- Application should make use of APIs provided in ff.h. These file system APIs access the driver functions through the glue layer.
How to enable
xilffs library can be found at
https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_services/xilffs/
xilffs
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- data - Provides the API and data structure details
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- src - Driver source files which are further organised into
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- examples - Contains example applications demonstrating the use of xilffs library
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- read_only: Enables the file system in Read Only mode, if true. Default is false. Zynq® UltraScale+™ MPSoC fsbl sets this option as true.
- use_lfn: Enables the long file name (LFN) support, if true. Default is false.
- enable_multi_partition: Enables the multi partition support, if true. Default is false.
- num_logical_vol: Number of volumes (logical drives, from 1 to 10) to be used. Default is 2.
- use_mkfs: Enables the mkfs support, if true. Default is true. Zynq UltraScale+ MPSoC fsbl set this option as false.
File System
File System The file system supports FAT16 and FAT32. The APIs are standard file system APIs. A detailed description can be found at http://elm-chan.org/fsw/ff/00index_e.html
Revision R0.10b is used in the library
Test cases
Test case ran by taking examples from example folder specified above
| SD Polled File System Example Test Successfully ran SD Polled File System Example |
Changelog
2021.2
https://github.com/Xilinx/embeddedsw/blob/xilinx_v2021.2/doc/ChangeLog#L307
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https://github.com/Xilinx/embeddedsw/blob/xilinx-v2018.3/doc/ChangeLog#L146
2018.2
None
2018.1
None
2017.4
None
2017.3
https://github.com/Xilinx/embeddedsw/blob/xilinx-v2017.3/doc/ChangeLog#L348
2017.2
None
2017.1
https://github.com/Xilinx/embeddedsw/blob/xilinx-v2017.1/doc/ChangeLog#L442
2016.4
https://github.com/Xilinx/embeddedsw/blob/xilinx-v2016.4/doc/ChangeLog#L57
2016.3
https://github.com/Xilinx/embeddedsw/blob/xilinx-v2016.3/doc/ChangeLog#L239
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