Versions Compared

Old Version 1

changes.mady.by.user Former user

Saved on

compared with

New Version Current

changes.mady.by.user Former user

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Anchor10042451004245 Licensing Issues Anchor10042461004246There are licensing issues related to FAT, particularly relating to Microsoft patents that deal with long file names (LFNs).

Licences for Long File Names (LFNs)

Microsoft announced on 2003-12-03 that it would be offering licenses for use of its FAT specification and "associated intellectual property". The royalty for using LFNs is US $0.25 royalty per unit sold, with a maximum of US $250,000 per license agreement.

Micrium µC/FS is delivered with complete source code for FAT; this includes source code for LFNs. To enable long file names (LFNs), you must set a configuration switch. By setting this switch, you agree to contact Microsoft to obtain a license to use LFNs.

Extended File Allocation Table (exFAT)

Microsoft has developed a new, proprietary file system: exFAT, also known as FAT64. exFAT was designed to handle very large storage media. Microsoft requires a license to make or distribute implementations of exFAT.

Micrium does not offer exFAT in µC/FS at this time.