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The features are:
Rather than try to update the entire flash with a new bin, the Flash is treated as a file system. A small boot loader/DLM resides at the beginning of Flash. User programs are compressed and stored as files. This allows redundancy, and will always be recoverable from a reset or power loss during a download.
The Boot loader starts and scans the Flash File System for a primary program. This is expanded to RAM and run. If the CRC fails or the program fails due to a watchdog reset, the backup program is run. If both fail, it will run the download manager. The primary or backup program can also be loaded from the FAT file system in serial Flash or a MMC card.
The library allows files to be added, deleted or replaced while the main application is running. A slow GPRS connection could take several minutes to download the new firmware. The system will still operate while the download progresses. When finished, it will reboot into the new code.
Download via serial interfaces is supported. This allows a seconds method of updates or for use on boards with no Ethernet.
This DLM allows users to write their own update via PPP, serial, removable storage, FTP. The file API allows a user to create a file, write the .bin to it and assign it as the primary or backup program. The PC utility would then only be needed if the user method fails.
A utility can be used to compress your .bin files externally. This will speed up updates via slow PPP connections. Files downloaded via the PC utility are automatically compressed. Typical compression is near 2:1.
The file API allows the PC utility to download additional files. These can be used for configuration parameters. This is easier to use than the user block. Up to 12 files are supported with names up to 100 characters.
User programs can write their own files and use the PC utility to upload them from the board. This is useful for log files.
If you would like to view the user manual (Adobe PDF) , It can be downloaded here
This library is licensed on a per-developer basis. A licensed user will receive the libraries and documentation and will receive free updates. Updates will be available online.
The PC utility may be freely distributed. Source is available to allow users to integrate the function into their own applications.
The introductory license cost is $145. Licensed users will get technical support for 1 year.
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For questions or more information check out the Rabbit Board at SHDesigns.
For More Information contact: rabbit@SHDesigns.org or Call Scott Henion at: (678) 367-3157 (This is not the FAX number!)