MQX™ File System (MFS)

The NXP MQX File System (MFS) is an embedded FAT file system compatible with Microsoft Windows and MS-DOS file systems. It can format, read, write and exchange files with any operating systems running a FAT-12, FAT-16 or FAT-32 files system. It is fully re-entrant and uses the NXP MQX RTOS file device driver to access disk devices. Also, included with the NXP MQX RTOS is a Trivial File System (TFS) that can be used in HTTP applications requiring a simple read-only file system. MFS is integrated with the FTP server of the NXP Real-Time TCP/IP Communication Suite (RTCS) and the Mass Storage Class Driver of the USB Host Stack.

Designed for Embedded Applications

• Provides full MS-DOS compatible file system that is configurable enough to fit into small memory requirements of embedded systems
• Brings support for desktop PC features such as long file names, multiple disk volumes, and directory handling to embedded systems

Portability and Modularity

• The MFS provides a portable, compatible implementation of the MS-DOS file system and library of file-system functions
• File-system functions are separated from the device-driver functions allowing for increased modularity
• Used for all types of storage medium

Features

• File system compatible with an MS-DOS file system
• Supports reading, writing, and formatting of any MS-DOS media
• Supports disk-space reservation
• Supports long filenames and multiple disk volumes
• Guarantees application tasks mutually exclusive access to the file system
• Supports block-and-record-level error detection and recovery
• Supports partitions
• Supports various removable media like USB flash disks, SD-cards, PC-cards, etc.
• Can be programmed into ROM