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Flash File Systems

HCC-Embedded is the foremost vendor of file systems for embedded applications, with a lineup of finely crafted products that’s second to none. HCC’s portfolio includes these

  • SAFE-FAT – High-performance, failsafe, FAT12/16/32
  • SAFE – High-performance, failsafe
  • TINY – Failsafe, runs in minimal environments
  • FAT – High-performance, FAT12/16/32
  • THIN – FAT12/16/32, runs in minimal environments

HCC’s products run on virtually any CPU/controller combination, in any operating environment, with any operating system, or without an operating system. HCC realizes that one size does NOT fit all. With HCC, the developer can choose the most appropriate system for the application.
 
HCC products are used in aerospace, automotive, consumer, industrial control, instrumentation, medical, security, and a host of other applications.
 
All HCC-Embedded products are licensed on a royalty-free basis and distributed in full source form.

File System Comparison Table

Key: na - not aplicable, d - in development

Note:
1 Approximate numbers based on AR;7 at high optimization
2 The RAM usage depends on the configuration and flash type. HCC provides a tool for calculating this number
3 all NAND flash devices are supported; all will operate better with help of a NAND flash controller
4 All types of NOR flash are suppoerted
5 NOR flash only
6 Needs driver support to do this
7 When used with HCC's SafeFTL
8 This is any NOR flash that has small erasable sectors; typically <4K. This includes many types of serial flash and also the integrated flash of some microcontrollers.

SafeFLASH

TINY

THIN

FAT

SafeFAT

Code Size1

40K

10K

4-12K

35K

45K

RAM Size

2

<256Bytes

0.7K<x<2K

>35K

>6K

Fail-safe

yes

yes

no

no

yes

RTOS Abstraction

yes

yes

no

yes

yes

ANSI C

yes

yes

yes

yes

yes

Long filenames

yes

yes

yes

yes

yes

Unicode

yes

no

no

yes

yes

Multiple Open Files

yes

yes

yes

yes

yes

Multiple user of open files

yes

no

no

yes

yes

Multiple volumes

yes

no

no

yes

yes

Multisector read/write

na

na

no

yes

yes

Partition Handling

no

no

no

yes

yes

Media error handling

yes

no

no

yes

yes

Test suite

yes

yes

yes

yes

yes

Imaging tool

yes

d

na

na

na

Performance

high

low

low-medium

high

high

Cache options

yes

no

no

yes

yes

Zero copy

yes

yes

yes

yes

yes

Static wear leveling

yes

no

na

na

na

Dynamic waer leveling

yes

yes

na

na

na

Re-entrant

yes

yes

no

yes

yes

CAPI suport

yes

no

no

yes

yes

Secure delete option

yes5

no

no

yes6

yes6

FAT12/16/32 compatible

no

no

yes

yes

yes


Media Types

NAND flash3

yes

no

yes7

yes7

yes7

NOR flash4

yes

no

no

no

no

Small sector NOR flash8

yes

yes

no

no

no

MMC/SD/SDHC cards

no

no

yes

yes

yes

CF cards

no

no

yes

yes

yes

HDD

no

no

yes

yes

yes

USB MST

no

no

yes

yes

yes

RAM

yes

yes

yes

yes

yes