Cypress CY3274, Руководство пользователя

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8 CY3274 Cypress High Voltage Programmable PLC Development Kit Guide, Doc. # 001-53598 Rev. *G
Introduction
1.2 Using the PLC Kit
Cypress’s Powerline Communication Solution (PLC) makes it possible to transmit and receive data
and control data over high voltage and low voltage powerlines. This solution is developed for low
bandwidth powerline communication.
The CY3274 PLC high voltage (HV) PLC development kit provides the capability to develop an
application on the Cypress CY8CPLC20 device that can transmit and receive data over high voltage
(110 V to 240 V AC) powerlines.
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Introduction chapter on page 7 provides a brief overview of the Cypress PLC solution. It
describes the contents of the CY3274 development kits and lists special features of the kit.
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Getting Started chapter on page 13 provides information on kit software and process for its
installation as well as hardware connections.
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PLC Development Board chapter on page 41 gives the functional overview of the PLC board and
describes the operating procedure of PLC HV board. It provides a high level hardware
description of the board.
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Code Examples chapter on page 51 provides explanation on the example projects and working.
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Appendix chapter on page 69 contains the schematics, layout, and bill of materials.
1.3 The Cypress PLC Solution
Powerlines are available everywhere in the world. This makes them one of the most widely available
communication media. The pervasiveness of powerlines also makes it difficult to predict their
characteristics and noise. Because of the variability of powerline quality, implementing robust
communication over powerline has been an engineering challenge for years. With this in mind, the
Cypress PLC solution is designed to enable secure, reliable, and robust communication over
powerlines.
The key features of the Cypress PLC solution are:
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An integrated powerline PHY modem with optimized filters and amplifiers that work with rugged
high and low voltage powerlines
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Powerline optimized network protocol that supports bidirectional communication with
acknowledgement based signaling and multiple retries
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Support for 8-bit packet CRC and 4-bit header CRC for error detection and data packet
retransmission
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Carrier Sense Multiple Access (CSMA) scheme that minimizes collisions between packet
transmissions on the powerline