12. Firmware Updates

The ETH-100’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 unit.

12.1 Requirements

Besides the new firmware file, firmware updates require a PC with a Windows operating system (95/98/NT/2000) and a serial port, the Rabbit Field Utility application (refer to section 12.3), and the MMI cable included with the ETH-100 kit (ICC part #10425).

Please be sure to read the firmware release notes and updated user’s manual (included with the BSP) prior to updating your firmware for any important notices, behavior precautions or configuration requirements. For example, upgrading to a new firmware version may reset user-configurable parameters (console settings) to their factory-default value. If the release notes indicate this, be sure to manually record all of your console settings prior to starting the update procedure for later reentry.

12.2 Connection

The ETH-100 ships from the factory with a dust cover installed in the MMI port. To minimize contamination of the port’s electrical contacts, keep this dust cover in place whenever the MMI port is not in use.

IMPORTANT: Note that the ETH-100 will not be operating the system control and communication application 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 RJ45 end of the MMI cable to the MMI port, and connect the other end to the computer’s serial port. Move switch SW1 #1 to the “ON” (down) position: this will place the ETH-100 into the “firmware download” mode. Whenever switch SW1 #1 is “ON”, the ETH-100 can only download firmware to its flash: all other application functions (such as Ethernet communications, console access etc.) will be disabled.

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