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1. I NTRODUCTION
Chapter 1 introduces the Smart Star embedded control system
and describes the features associated with the backplane chassis
and the CPU Card. The Tool Kit containing the hardware essen-
tials to begin using the Smart Star is described, and the software
highlights are presented.
The Smart Star is a modular and expandable embedded control system whose configuration
of Digital I/O, A/D Converter, D/A Converter, and Relay Cards can be tailored to a large
variety of demanding real-time control and data acquisition applications.
The typical Smart Star system consists of a rugged backplane with a built-in voltage regulator,
a CPU Card, and one or more I/O cards. The CPU Card plugs into a designated slot on the
backplane chassis, which has additional slots available for any combination of I/O cards.
A high-performance Rabbit 2000 microprocessor on the CPU Card operates at 22.1 MHz
to provide fast data processing.
1.1 Features
? C-programmable to create a custom user interface
? Flexible functionality—modular configuration allows interchanging or replacing indi-
vidual I/O cards
? Expandable—up to 168 I/O ports
? Choice of two backplanes—with either 3 or 7 slots for I/O cards
? Choice of CPU cards—with or without one RJ-45 10/100-compatible Ethernet port
with 10Base-T Ethernet interface
? RS-232 and RS-485 serial ports allow networking to other Smart Star units, single-
board computers, or enterprise computing centers
? 128K SRAM and 512K flash memory, optional 512K SRAM
? Real-time clock
? Watchdog supervisor
? Backup battery
? Optional backlit 122 × 32 graphic display/keypad module
? RabbitLink Ethernet gateway available for remote download/debug, Web serving, and
e-mail
User ’s Manual
9
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