14. Firmware Updates

The gateway’s embedded firmware resides in flash memory that can be updated in the field. Firmware updates may be released for a variety of reasons, such as custom firmware implementations, firmware improvements and added functionality as a result of user requests.

ICC is continually striving to enhance the functionality and flexibility of our products, and we therefore periodically release new embedded firmware to achieve these goals and meet customer requests. Flash firmware files and all related documentation (such as updated user manuals) can be downloaded as complete board support packages (referred to as BSPs) from http://www.iccdesigns.com. It is suggested that users check this Internet site prior to installation, and then periodically afterwards to determine if new support packages have been released and are available to upgrade their units.

14.1 Requirements

Besides the new firmware file, firmware updates require a PC with a Windows operating system (Windows 95 or newer) and a serial port, the RFU PC application (refer to section 14.3), and an appropriate cable to connect the RS232 port of the unit to the PC.

Please be sure to read the firmware release notes and updated user’s manual (included with the BSP) for any important notices, behavior precautions or configuration requirements prior to updating your firmware. For example, upgrading to a new firmware version may affect user-defined configuration files: prior to starting an update procedure always back up your configuration file to a PC for later recovery if necessary.

14.2 Connection

IMPORTANT: Note that the gateway will not be operating its system control and communication tasks while its internal firmware is being updated. Therefore, be sure to shut down the system to a known safe state prior to initiating the firmware update procedure.

Connect the serial port cable between the RS232 port of the gateway and the computer’s serial port. Move “CFG” switch #1 to the “ON” (right-hand) position: this will place the gateway into the “firmware download” mode. Whenever “CFG” switch #1 is “ON”, the gateway can only download firmware to its flash memory: all other application functions (such as communications, console access etc.) will be disabled.

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