Datalight to support Samsung's NAND Flash

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Oct. 25, 2005

Datalight Inc. is collaborating with Samsung Electronics to provide software integration support for Samsung's "advanced" OneNAND Flash memory devices. The intent is to provide the support needed to integrate OneNAND Flash memory into low-to-medium volume consumer electronics, industrial, automotive, and security applications, according to Datalight.

Samsung limits its own custom software integration support to high-volume purchasers of OneNAND. The new arrangement allows Samsung to sell OneNAND memory into lower-volume applications, making use of Datalight's tools and development support.

Datalight is offering two software development kits in support of OneNAND memory.

OneBoot

Datalight describes OneBoot as an "easy to integrate, reliable" software layer that resides between any 32-bit operating system, such as Windows CE, and Flash memory, and allows a device to use OneNAND as normal disk storage for the operating environment and applications. The OneBoot translation layer includes a generic block device driver interface that is compatible with "virtually any file system," according to Datalight.

Key features include:

Background compaction to remove invalid sectors
Wear-leveling algorithm
Keeps track of erase counts
Maps good & bad block sectors
Never overwrites currently stored data
Atomic data writes

OneBoot + File

This enhanced version of OneBoot adds Datalight's Reliance transactional filesystem, which the company says prevents filesystem corruption in the event of power loss. OneBoot + File keeps track of the last known good state of directories and saved files.

Key features include:

All OneBoot features listed above
Boots up to 300 percent faster than other file system alternatives
Never-lose-data feature keeps track of last known good state
Updates information to memory at user-settable transaction points

Kits for each product include limited ANSI C source code, a developer's guide, an API reference, sample applications and tools for using OneBoot or OneBoot + File, according to the company. In addition, Datalight says it provides 30 days of free product support, with extended product support available by contract.

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