Linjieqiang / lv_fs_if

LVGL interfaces to various file systems (PC, FatFS)

File System Interface

This repository is merged into the lvgl repository. See https://docs.lvgl.io/master/libs/fs.html

LVGL has a File system module to attach memories which can manipulate with files. Here you can find interfaces to

• FATFS
• PC (Linux and Windows using C standard function .e.g fopen, fread)
• POSIX (Linux and Windows using POSIX function .e.g open, read) file systems.

You still need to provide the drivers and libraries, this repo gives "only" the bridge between FATFS/PC/etc and LittlevGL.

Usage

1. Add these lines to you lv_conf.h:

/*File system interface*/
#define LV_USE_FS_IF	1
#if LV_USE_FS_IF
#  define LV_FS_IF_FATFS    '\0'
#  define LV_FS_IF_PC       '\0'
#  define LV_FS_IF_POSIX    '\0'
#endif  /*LV_USE_FS_IF*/

2. Enable an interface you need by changing '\0' to letter you want to use for that drive. E.g. 'S' for SD card with FATFS.

3. Call lv_fs_if_init() (after lv_init()) to register the enabled interfaces.