CY545 Stepper System Controller
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CHAPTER 15 - CY545 PROTOTYPING SUPPORT
The CYB-545 Prototyping Board
The CYB-545 (and later CYB-550) Prototyping Board implements the Example Circuit -
Maximum configuration as discussed earlier, supporting all features of the CY545. The CY545
may communicate serially with the host over an RS232 interface using the RJ11 jacks, while
parallel communications are supported on a 20-pin header.
Multiple axes or networked controllers are supported using the CY233 Network Controller. The
CY233 communicates with the CY545 over the Parallel bus.
This board also contains the interface circuits to support an HP or Siemens 8-character LED, for
displaying parameter values, prompts and messages. Up to 256K bits (32Kx8) of memory are
addressable at the memory socket, which can accept PROM, EPROM or EEPROM. It is
possible for such a system to operate without the use of a host computer. The CY545 with local
memory can contain the routines required to run the system, while the display provides the
mechanism for system control by the operator.
A Wirewrap area is provided for implementation of thumbwheel switches, driver circuits, or other
custom circuitry. Based in the single height VME format (100mm x 160mm, approximately 4" x
6.3"), the board requires only +5v (@650mA). The RS232 level voltages are generated by the
Max233 on the board.
The basic board is provided in kit form, with all parts necessary to assemble a working board.
Separate options are available, including an LED Display, Memory, EEPROM, CY233 Network
Controller Chip, power supply, and serial cable.
© 2002 Cybernetic Micro Systems
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Chapter 15 - CY545 Prototyping Support
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