|SHDesigns: Embedded Systems Design, Consulting and Developer Resources||Page hits:|
|Libraries for the:||Softools WinIDE C compiler||Z-World Dynamic C Compiler *|
Resident Download Manager:
Ethernet Download Manager:
Serial Download Manger:
SHDesigns Resident Download Manager (RDLM): The resident DLM is the most advanced download manager available for the Rabbitboards. Instead of trying to maintain a single program in Flash, it has a boot loader in the start of Flash and treats the rest of Flash as a file system. This DLM is the only one available that is 100% recoverable from power loss during download. It can always fall back to a backup program or worst case, fall back to the download manager and wait for a valid program to be downloaded.
User programs are compressed and stored as files then run from RAM. Multiple files may be stored. Programs may also be stored in serial Flash as a FAT file. It supports serial flash and FAT on most ZW boards, the Atmel DataFlash and MMC cards. The flash can also be used to store user data like configuration files or log files.
The ResidentDLM was originally designed for Ethernet. The current version allows updates via serial, WiFi or PPP connections. Firmware updates can be done while the system is running as a background task. In the case that the board is reset during a download of new firmware, the board will run a backup program or wait for a valid program via Ethernet or serial.
The ReidentDLM does not need the PC application to update the firmware. The Flash file system and API allows developers to open a file, save a new .bin file and mark it as the primary program. This API allows a developer to implement their own method to download new firmware. examples may be copy file from web server, download via FTP or copy new program from removable storage. An example application that downloads a file from a web server is provided.
Ethernet Download Manager: Update boards on a local or remote network. The rabbit boards are listed and can be updated individually or in groups. Automatic updates cane be scheduled. A PC utility can be run on any Windows PC and does not require installation. Has a very small Flash use, as low as 2k. Very fast downloads.
Serial Download Manager: Update boards via direct serial connection or via a modem. Modem supports call-in and call-out modes.
All download managers include error recovery if the download is aborted, power is lost, or an error occurs. The Resident, Ethernet and Serial managers support encrypted .bin files to prevent users from stealing your code. Libraries include support for all ZWorld modules and boards.
|Ethernet DLM||Serial DLM||Resident DLM|
|Update Via PC application||Yes||Yes||Yes|
|Automatic Updates||No||No||User can write their own update code.|
|Update from Centralized Web Server||No||No||No|
|Wifi support||No||No||Yes, with fallback to ethernet/serial only.|
|PPP/GPRS/CDMA Support||No||No||Yes, with fallback to ethernet/serial only.|
|Encrypted program files||Yes||Yes||Yes|
|Compressed Program files||No||No||Yes|
|Flash space added to user program||3-27k||4-28k||68k boot loader, user programs compressed usually 2:1|
|Run from Flash||Yes||Yes||No, programs are compiled for RAM or "Compile for Flash, run in 9"|
|Programs run in RAM||No||No||Yes|
|Primary program with backup fallback||No||No||Yes|
|Recommended RAM||128k or more||128k or more||256k minimum, 512k recommended|
|Flash file system||No||No||Yes, 12 files|
|FAT file support||No||No||Yes (with FAT lib), Atmel serial flash, SD/MMC supported. NAND flash and xD is not supported|
|Update firmware while user program is still running||No||No||Yes|
|Recommended application||Ethernet on boards with smaller RAM's or tight code space.||Boards with serial and no Ethernet or PPP/GPRS||
Best for RCM32xx, RCM33xx and RCM38xx (or BLxxx boards tha use the same modules.)
All other boards that have 512k RAM
Boards that have less than 512k without Ethernet.
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