CY3275
Cypress Low Voltage Programmable
Powerline Communication
Development Kit Guide
Doc. # 001-53657 Rev. *C
Cypress Semiconductor
198 Champion Court
San Jose, CA 95134-1709
Phone (USA): 800.858.1810
Phone (Intnl): 408.943.2600
http://www.cypress.com
Copyrights
Copyrights
© Cypress Semiconductor Corporation, 2009-2011. The information contained herein is subject to change without notice.
Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a
Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted
nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an
express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components
in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user.
The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such
use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by
and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty
provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create
derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source
Code except as specified above is prohibited without the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described
herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein.
Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure
may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all
charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
PSoC® is a registered trademark of Cypress Semiconductor Corporation. All products and company names mentioned in this
document may be the trademarks of their respective holders.
Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the
Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard
Specification as defined by Philips. As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors.
Flash Code Protection
Cypress products meet the specifications contained in their particular Cypress PSoC Data Sheets. Cypress believes that its
family of PSoC products is one of the most secure families of its kind on the market today, regardless of how they are used.
There may be methods, unknown to Cypress, that can breach the code protection features. Any of these methods, to our
knowledge, would be dishonest and possibly illegal. Neither Cypress nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable."
Cypress is willing to work with the customer who is concerned about the integrity of their code. Code protection is constantly
evolving. We at Cypress are committed to continuously improving the code protection features of our products.
2
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
Contents
1. Introduction
1.1
1.2
1.3
1.4
1.5
1.6
Using the PLC Kit ........................................................................................................5
The Cypress PLC Solution ..........................................................................................5
Kit Contents .................................................................................................................7
Additional Learning Resources....................................................................................8
Document Revision History ........................................................................................8
Documentation Conventions .......................................................................................8
2. Getting Started
2.1
2.2
2.3
2.4
3.3
3.4
3.5
A.2
17
Features.....................................................................................................................17
PLC Development Board Functional Overview .........................................................17
3.2.1 Operating Conditions .....................................................................................17
Hardware Description ................................................................................................18
3.3.1 Development ..................................................................................................19
3.3.1.1 User I/Os, Bread Board, and GPIO Headers ...................................19
3.3.1.2 CY8CPLC20 Device ........................................................................20
3.3.1.3 Potentiometer and DIP Switches .....................................................22
3.3.2 LCD Daughter Card .......................................................................................22
3.3.3 Debugger .......................................................................................................22
3.3.4 RS-232 COM Port ..........................................................................................23
3.3.5 Power Supply Circuit......................................................................................24
3.3.6 Transmit Amplifier and Receive Filter ............................................................24
3.3.7 Low Voltage Coupling Circuit .........................................................................25
Code Example ...........................................................................................................26
Technical Reference..................................................................................................26
A. Appendix
A.1
9
Kit Installation ..............................................................................................................9
PSoC Designer ..........................................................................................................13
PSoC Programmer ....................................................................................................14
Software Installation ..................................................................................................15
2.4.1 Before You Begin ...........................................................................................15
2.4.2 Prerequisites ..................................................................................................15
2.4.3 Installing PLC Control Panel Software ...........................................................15
3. PLC LV Development Board
3.1
3.2
5
27
Schematics ................................................................................................................27
A.1.1 Board Overview..............................................................................................27
A.1.2 User Interface.................................................................................................28
A.1.3 Transmit and Receive Filter Coupling ............................................................29
A.1.4 Power Supply .................................................................................................30
Layout ........................................................................................................................31
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
3
Contents
A.3
4
A.2.1 Top Layer....................................................................................................... 31
A.2.2 Ground Layer ................................................................................................. 32
A.2.3 Power Layer................................................................................................... 33
A.2.4 Bottom Layer ................................................................................................. 34
A.2.5 Top Silkscreen ............................................................................................... 35
A.2.6 Bottom Silkscreen .......................................................................................... 36
Bill of Materials ......................................................................................................... 37
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
1.
1.1
Introduction
Using the PLC Kit
Cypress’s Powerline Communication (PLC) solution makes it possible to transmit command and
control data over high-voltage and low-voltage powerlines. This solution is developed for low bandwidth powerline communication.
The CY3275 low-voltage (LV) PLC development kit provides the capability to develop an application
on the Cypress CY8CPLC20 device that can transmit and receive data over low voltage (12 V to
24 V AC/DC) powerlines.
1.2
■
Chapter 1 provides a brief overview of the Cypress PLC solution. It describes the contents of the
development kit and lists its special features.
■
Chapter 2 describes how to install and configure the PLC LV board.
■
Chapter 3 gives the functional overview and describes the operating procedure of the PLC LV
board. It provides a high-level hardware description of the board.
■
The Appendix provides the schematics, layout, and bill of materials.
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:
■
An integrated powerline PHY modem with optimized amplifiers that work with rugged high and
low voltage powerlines
■
Powerline optimized network protocol that supports bidirectional communication with acknowledgement based signaling and multiple retries
■
Support for 8-bit packet CRC and 4-bit header CRC for error detection and data packet retransmission
■
Carrier Sense Multiple Access (CSMA) scheme that minimizes collisions between packet transmissions on the powerline
The Cypress PLC solution consists of three key elements, as shown in Figure 1-1.
■
Powerline network protocol layer
■
Physical layer FSK modem
■
Power amplification and coupling circuits
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
5
Introduction
Figure 1-1. Cypress PLC Solution Block Diagram
The powerline network protocol layer and the physical layer FSK modem are implemented on the
CY8CPLC20 chip. The CY3275 board contains the CY8CPLC20 device along with the power amplification and coupling circuit for communicating on low voltage (12 V–24 V AC/DC) powerlines. For a
detailed description of the circuit design parameters, see application note AN55427, Cypress Powerline Communication Board Design Analysis.
The network protocol layer allows addressing of multiple nodes on the network. This enables pointto-multipoint communication. The protocol layer also provides a defined packet structure for transmitting data packets from one node to the other as well as error detection and packet retransmit
functions.
The chip also contains a PSoC® core in addition to the PLC core. The PSoC core includes configurable blocks of analog and digital logic as well as programmable interconnects. This architecture
allows to create customized peripheral configurations that match the requirements of each individual
application. Additionally, a fast CPU, flash program memory, SRAM data memory, and configurable
I/Os are included.
Figure 1-2 shows a two node system level diagram. To evaluate this kit, follow the steps in the quick
start guide, which is provided in the kit.
Note To evaluate this kit, a second low voltage PLC kit is required. The compatible kits are CY3275
(this kit) and CY3273 Low Voltage PLC Evaluation Kit. For more information, visit http://
www.cypress.com/go/CY3275 and http://www.cypress.com/go/CY3273.
6
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
Introduction
Figure 1-2. PLC System Level Block Diagram - Two Nodes
1.3
Kit Contents
The CY3275 LV PLC Development Kit contains:
■
CY3275 LV PLC development board
■
CY3275 quick start guide
■
CD-ROM containing:
❐
Packet test software – PLC Control Panel application
❐
PLC Control Panel release notes
❐
CY3275 release notes
❐
CY8CPLC20 data sheet
❐
CY3275 development kit user guide
❐
CY3275 board Altium design project
❐
CY3275 board schematics, layout, and BOM
❐
Application note – Using CY8CPLC20 in Powerline Communication (PLC) Applications
❐
PSoC Designer™
❐
PSoC Programmer
■
12 V DC power supply
■
MiniProg1 to program the CY8CPLC20 device
■
25 jumper wires
■
LCD module
■
USB-I2C bridge
■
Retractable USB cable
■
Daisy chain cable
■
Five CY8CPLC20-28PVXI SSOP device samples
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
7
Introduction
1.4
Additional Learning Resources
Visit http://www.cypress.com/go/plc for additional learning resources in the form of data sheets, technical reference manuals, and application notes.
1.5
■
CY3275 Schematic.pdf: http://www.cypress.com/go/CY3275
■
CY3275 Board Layout.zip: http://www.cypress.com/go/CY3275
■
CY3275 Kit documentation: http://www.cypress.com/go/CY3275
■
For a list of PSoC Designer-related trainings, see http://www.cypress.com/?rID=40543
■
CY8CPLC20 data sheet: http://www.cypress.com/?rID=38201
■
For more information regarding PSoC Designer functionality and releases, refer to the user guide
and release notes on the PSoC Designer web page: http://www.cypress.com/go/psocdesigner
■
For more information regarding PSoC Programmer, supported hardware, and COM layer, go to
the PSoC Programmer web page: http://www.cypress.com/go/psocprogrammer
■
AN54416, Using CY8CPLC20 in Powerline Communication (PLC) Applications
http://www.cypress.com/?rID=37951
Document Revision History
Table 1-1. Revision History
Revision
PDF Creation Origin of
Date
Change
**
08/14/09
IUS
Initial release.
*A
09/03/09
IUS
Rework for external release.
*B
12/10/09
RARP
Content updates
FRE
Added references to the compatible low voltage PLC kits. Added a reference to the quick start guide for evaluation. Added clarifications to the
text throughout the document. Removed reference to CY3277 and
CY8CLED16P01. Updated section 1.4. Added Getting Started section.
*C
1.6
08/04/11
Description of Change
Documentation Conventions
Table 1-2. Document Conventions for Guides
Convention
8
Usage
Courier New
Displays file locations, user entered text, and source code:
C:\ ...cd\icc\
Italics
Displays file names and reference documentation:
Read about the sourcefile.hex file in the PSoC Designer User Guide.
[Bracketed, Bold]
Displays keyboard commands in procedures:
[Enter] or [Ctrl] [C]
File > Open
Represents menu paths:
File > Open > New Project
Bold
Displays commands, menu paths, and icon names in procedures:
Click the File icon and then click Open.
Times New Roman
Displays an equation:
2+2=4
Text in gray boxes
Describes Cautions or unique functionality of the product.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
2.
Getting Started
This chapter describes how to install and configure the CY3275-LV PLC Development Kit.
2.1
Kit Installation
To install the kit software, follow these steps:
1. Insert the kit CD into the CD drive of your PC. The CD is designed to auto-run and the Kit Installer
Startup screen appears.
2. Click Install CY3275 Low Voltage PLC Kit to start the installation, as shown in Figure 2-1.
Figure 2-1. Kit Installer Startup Screen
Note If auto-run does not execute, double-click the cyautorun.exe file on the root directory of the
CD, as shown in Figure 2-2.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
9
Getting Started
Figure 2-2. Root Directory of CD
3. The CY3275-LV PLC Development Kit InstallShield Wizard screen appears. Choose the folder
location to install the setup files. You can change the location of the folder using Change, as
shown in Figure 2-3.
4. Click Next to launch the kit installer.
Figure 2-3. CY3275-LV PLC Development Kit - InstallShield Wizard
5. On the Product Installation Overview screen, select the installation type that best suits your
requirement. The drop-down menu has the options Typical, Complete, and Custom, as shown
in Figure 2-4.
6. Click Next to start the installation.
10
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
Getting Started
Figure 2-4. Installation Type Options
7. When the installation begins, a list of all packages appears on the Installation page.
8. A green check mark appears adjacent to every package that is downloaded and installed, as
shown in Figure 2-5.
9. Wait until all the packages are downloaded and installed successfully.
Figure 2-5. Installation Page
10.Click Finish to complete the installation, as shown in Figure 2-6.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
11
Getting Started
Figure 2-6. Installation Completion Page
12
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
Getting Started
2.2
PSoC Designer
1. Click Start > All Programs > Cypress > PSoC Designer > PSoC Designer .
2. Click File > New Project to create a new project on the PSoC Designer menu or go to File >
Open Project/Workspace to work with an existing project.
Figure 2-7. PSoC Designer Workspace
3. For more details on PSoC Designer, go to Help Topics from the following directory:
:\Cypress\PSoC Designer\\PSoC Designer 5\Help\
PSoCDesigner (Compiled HTML Help file)
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
13
Getting Started
2.3
PSoC Programmer
1. Click Start > All Programs > Cypress > PSoC Programmer > PSoC Programmer
.
2. Connect the MiniProg from Port Selection, as shown in Figure 2-8.
Figure 2-8. PSoC Programmer Workspace
3. Click the File Load button to load the hex file.
4. Use the Program button to program the hex file on to the chip.
5. When the file is successfully programmed, ‘Programming Succeeded’ appears on the Actions
pane.
6. Close PSoC Programmer.
Note For more details on PSoC Programmer, go to Help Topics from the following path:
:\Cypress\Programmer\\PSoC_Programmer Compiled HTML
Help file.
14
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
Getting Started
2.4
Software Installation
2.4.1
Before You Begin
All Cypress software installations require administrator privileges; but this is not required to run the
installed software.
1. Shut down any Cypress software that is currently running.
2. Disconnect any Cypress devices (USB-I2C bridge, ICE Cube, or MiniProg) from your computer.
2.4.2
Prerequisites
The PLC Control Panel GUI requires the latest versions of Microsoft .NET Framework, Adobe Acrobat Reader, and a Windows Installer. If your computer does not have .NET Framework and Windows
Installer, the installation automatically installs them. However, if your computer does not have Adobe
Acrobat Reader, download and install it from the Adobe website.
2.4.3
Installing PLC Control Panel Software
The PLC Control Panel GUI is installed as a prerequisite when you install the CY3275-LV PLC
Development kit. Follow the steps shown on the screen to complete the installation.
To reinstall this application, select Install PLC Control Panel GUI from the installation screen, as
shown in Figure 2-1.
Click Start > All Programs > Cypress > PLC Control Panel > PLC Control Panel.
The PLC Control Panel application controls the CY3275-LV PLC Development Kit over USB interface from a PC. The application's startup display, when a board is attached and operating, is shown
in the following figure.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
15
Getting Started
Figure 2-9. PLC Control Panel Startup Display
After installing PLC Control Panel, refer to the required documentation at the following location:
■
■
:\Software\PLC Control Panel\PLC Control Panel Release Notes.pdf
:\Software\PLC Control Panel\User Guide for Cypress PLC Control Panel GUI.pdf
The PLC Control Panel user guide is also available in the installation directory. It contains additional
information about installation and how to set up the kit to work with the GUI. It can also be accessed
from the Help menu in the PLC Control Panel GUI.
16
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
3.
PLC LV Development Board
This chapter explains the key features of the CY3275-LV development board.
3.1
Features
The Cypress CY3275-LV CY8CPLC20 development board is a versatile tool with the following features:
3.2
■
User friendly PLC Control Panel application available on the kit CD-ROM
■
Chip power supply derived from 12 V to 24 V AC/DC
■
CY8CPLC20-OCD chip – 100-pin TQFP on chip debug (OCD) device that allows quick design
and debug of PLC applications. The CY8CPLC20 100-pin TQFP is available for debug purposes
only. For production quantities, CY8CPLC20 is available in 28-pin SSOP and 48-pin QFN packages
■
User configurable general purpose LEDs
■
General purpose 8-position DIP switch
■
RJ-45 connector to use ICE debugger
■
RS-232 COM port for serial communication
■
Header to attach the LCD card
■
I2C header for communicating to external devices
■
ISSP header for programming the CY8CPLC20 chip
PLC Development Board Functional Overview
The PLC development board is designed as a development platform for low bandwidth (up to
2400 bps) powerline communication applications.
The application on CY8CPLC20 generates the data. The PLC core encapsulates this data into a
PLC network packet. The FSK modem modulates this packet and the coupling circuitry incorporates
the resulting sinusoidal waveform onto the existing waveform on the low voltage bus.
3.2.1
Operating Conditions
■
Input voltage: 12 V/24 V AC/DC
■
Input current: 200 mA/150 mA
■
Operating temperature: 0 °C to 40 °C
■
Operating humidity condition: 5% to 95% RH, non-condensing
Note The board's ground reference is directly connected to the '–' input of the power. If the line voltage is AC, the same polarity should be maintained when connecting the boards (same as DC). This
will prevent any potential shorts that may occur if the polarities are swapped and the PLC kits are
connected to equipment that share the same ground reference (for example, a PC).
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
17
PLC LV Development Board
3.3
Hardware Description
Figure 3-1 shows the programmable low voltage PLC development board. The key components and
areas are highlighted. This section provides a description of the user-accessible components and
how to use these components on the board. For a detailed description of the design parameters for
the PLC circuit, see application note AN55427, Cypress Powerline Communication Board Design
Analysis. The board is divided into seven main sections:
■
Development
■
LCD module
■
Debugger
■
RS-232 COM port
■
Power supply
■
Transmit amplifier and receive filter
■
Low voltage coupling circuit
Figure 3-1. Top View of Cypress Programmable PLC LV Development Board
I2C Connector (J15)
and Jumpers
(JP1, JP3, JP4, JP5)
ISSP Programming
Connector (J21)
Reset Pushbutton
(S1)
RJ-45 Debugger
Connector (J14)
General Purpose LEDs
Connected to LED1-4
Power Connector
(J3)
CY8CPLC20 PLC Device
With On-Chip Debugger (U1)
Power Connector
(J2)
Low Voltage PLC
Coupling Circuit
Breadboard with surrounding
GPIO headers
Power Supply
Transmit Filter, Transmit
Amplifier, and Receive Filter
RS-232 Interface
Push button (S4)
Connected to SW
Potentiometer (R47)
Connected to VR
DIP Switch (S3)
Connected to J12
PLC RX, TX, BIU Indicator
LEDs (DS2, DS3, DS4)
Potentiometer (R46)
For LCD Contrast
LCD Connector
Connected to Port4
The core of the PLC LV board is the CY8CPLC20 chip. The communication signal flow on this LV
board is as follows:
Transmit: CY8CPLC20 TX pin (FSK_OUT) Power Amplifier Circuitry LV Coupling Circuitry
LV Powerline (12 V to 24 V AC/DC).
Receive: LV Powerline (12 V to 24 V AC/DC) LV Coupling Circuitry Passive Low Pass Filtering
Vdd/2 Biasing CY8CPLC20 RX pin (FSK_IN).
18
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
PLC LV Development Board
3.3.1
Development
3.3.1.1
User I/Os, Bread Board, and GPIO Headers
This section is the area where you create your custom design. All GPIO pins (excluding those
required for PLC communication) are routed to this bread board area. Some of the pins are shared
for other purposes (for example, the port 4 pins P4[6:0] are also connected to the LCD connector).
Header J18 has pins that are connected to user I/Os (potentiometer, pushbutton, and LEDs). In
Figure 3-2, these connections are represented by the green arrows. To connect one of the user I/Os
to a CY8CPLC20 pin, connect a jumper wire between the respective header pins. For example, to
connect the pushbutton S4 to pin P1[6], place a jumper wire in SW on header J18 and the other end
in P16 on header J9.
The DIP switch bank S3 is not connected directly to any of the CY8CPLC20 pins. The DIP switch is
connected to header J12, so that a jumper wire can be connected to any of the pins. The DIP switch
is active LOW (connected to GND when in the ON position).
Figure 3-2. Bread Board
General LEDs
Port3 Digital Port (J10)
Free: P30-P37
Port1 Digital Port (J9)
I2C: P17. P15
Free: P16, P12
Port5 Digital Port (J17)
Free: P50-P53
Port2 Digital Port (J16)
BIU LED: P21
RX LED: P23
TX LED: P25
Free: P26
Port0 Analog/Digital Port (J13)
Free: P01, P02, P04, P07
Port4 Digital Port (J1)
LCD: P40-P46
Push button (S4)
Potentiometer (R47)
DIP Switch (S3) with
Header (J12)
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
19
PLC LV Development Board
3.3.1.2
CY8CPLC20 Device
This section has the CY8CPLC20-OCD chip, which has the integrated transmit/receive modem, network protocol, and application layer. It also has an I2C header for optional communication with an
external host processor. The ISSP header is provided to program the part. The part has a built-in
debug support using the RJ-45 connector, which can be used with the ICE debugger. It also has
three dedicated LEDs to indicate communication on the powerline: green LED for TX, red LED for
RX, and yellow LED for BIU.
Figure 3-3. CY8CPLC20 Device, I2C, and ISSP Headers
I2C-SDA pull-up (JP4)
connects I2C SDA line to a
pull-up resistor
I2C-SCL pull-up (JP3)
connects I2C SCL line to a
pull-up resistor
I2C Connector (J15)
Reset Jumper (JP5)
connects XRES to I2C Connector
Reset Pushbutton (S2)
5 V PWR Jumper (JP1)
connects 5 V to I2C Connector
ISSP Programming Connector (J21)
CY8CPLC20 PLC Device with
On-Chip Debugger (U1)
Table 3-1. Headers and Jumpers
Headers and Jumpers
Description
BIU LED[DS4]
Yellow LED to indicate when the transmit frequency band is in use
CY8CPLC20-OCD
Cypress powerline transceiver device. It is a 100-pin on-chip debugger (OCD)
device
J8
2-pin header for connecting to Vcc and Gnd
V – Vdd Pin: This pin can provide a maximum of 50 mA at 5 V to an external board
only when the input to the board is 12 V. For input voltages greater than 12 V, do
not use this pin to power another board. This pin is only to source the current. Do
not use this pin to power the CY8CPLC20 device. Note that the PWR jumper
(JP1) needs to be connected to enable this functionality
G – Gnd Pin: This pin can provide the ground reference to an external board
J15
D – I2C Data (SDA): Data line for the I2C communication. This pin is directly connected to the CY8CPLC20 device
C – I2C Clock (SCL): Clock line for the I2C communication. This pin is directly connected to the CY8CPLC20 device
R – Reset: Connecting this pin to an external board enables the CY8CPLC20 chip
to be reset by an external board. Note that the RES jumper needs to be connected
to enable this functionality
JP1 (PWR)
20
Connect this jumper to power an external board from the CY3275. The external
board is powered through the V and G pins on the I2C connector (J15)
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
PLC LV Development Board
Headers and Jumpers
Description
JP3 (I2C-SCL)
I2C SCL pull up jumper. While communicating through I2C(J15), one side should
pull up the line. When the jumper is connected, the SCL line is pulled high. This
needs to be done when the user wants the I2C link to be pulled up by the CY3275
board. This jumper does not need to be placed if the USB-I2C bridge is used to
communication with the host
JP4 (I2C-SDA)
I2C SDA pull up jumper. While communicating through I2C(J15), one side should
pull up the line. When the jumper is connected, the SDA line is pulled high. This
needs to be done when the user wants the I2C link to be pulled up by the CY3275
board. This jumper does not need to be placed if the USB-I2C bridge is used to
communication with the host
JP5 (Reset)
The jumper is to enable reset of the PLC chip through an external board. When
this jumper is connected, the external board reset can be connected to the R pin
on the I2C header (J15)
LED1-LED4
Headers connected to general purpose configurable LEDs
P01,P02,P04, P07
Free analog/digital port pins
P21
Port pin connected to yellow LED for BIU
P23
Port pin connected to red LED for RX
P25
Port pin connected to green LED for TX
P26
Free port pin
P40-P46
Port pins connected to LCD card
P15
Port pin connected to I2C data line (SDA)
P16, P12
Free port pins
P17
Port pin connected to I2C clock line (SCL)
P30,P31,P32,P33,P34,
P35, P36, P37
Free port pins
P47
Free port pin
P50,P51,P52,P53
Free port pins
PWR LED[DS1]
Blue LED that glows when the board is powered on
R46
Adjusting this potentiometer adjusts the contrast on the LCD daughter card
R47
This is a variable resistor (potentiometer) that connects to the VR header. It is used
to generate a voltage between +5 V and GND
RX LED[DS2]
Red LED to indicate when the board is receiving data
S2
Reset switch for the CY8CPLC20-OCD chip
S3[7-0]
These DIP switches are general purpose and can be routed to any port of the
CY8CPLC20 chip. In the ON position, the switch is connected to ground. In the
OFF position, the signal is high-Z
SW
Header connected to the switch S4. S4 is a general-purpose switch. Active HIGH
(connected to VDD when pressed)
TP1, TP2, TP3, TP4
Grounded test points to facilitate probing/debugging
TX LED[DS3]
Green LED to indicate when the board is transmitting data on to the powerline
VR
Header connected to the potentiometer R47
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
21
PLC LV Development Board
3.3.1.3
Potentiometer and DIP Switches
The board has 8-position general purpose DIP switches (S3). A general-purpose potentiometer
(R47) is provided next to the DIP switches. This potentiometer can be routed to the chip using the
GPIO pins. The second potentiometer (R46) is specifically meant to control the contrast for the LCD
daughter card in the LCD1 slot.
3.3.2
LCD Daughter Card
This card is an LCD module easily connected to the board. It is connected and controlled by using
the CY8CPLC20 port 4 pins P4[6:0].
Figure 3-4. LCD Daughter Card
It is connected to the main board, as shown in Figure 3-4. The LCD contrast is controlled by the
potentiometer R46.
Figure 3-5. LCD Daughter Card Connection
Potentiometer R46
for LCD Contrast
3.3.3
Debugger
The RJ-45 ICE-Cube emulation connector provides a debug interface between the CY8CPLC20OCD device and the ICE-Cube emulation tool using PSoC Designer. A CY3215-DK In-Circuit Emulation Development Kit is required to interface the PC to this board. This kit is available for purchase
at: http://www.cypress.com/go/CY3215-DK.
22
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
PLC LV Development Board
Figure 3-6. RJ-45 Connector
3.3.4
RS-232 COM Port
The RS-232 COM port is used with a standard RS-232 cable to connect two RS-232 capable
devices together. The RS-232 header (J20) is a 4-pin header that has connections for the RX, TX,
RTS, and CTS lines. These are wired to port pins to connect the device to the respective pins on the
RS-232 DB9 port.
Figure 3-7. RS-232 COM Port
The following table shows the controls associated with the RS-232 COM port.
Table 3-2. Key RS-232 COM Signals
Control
Description/Comment
RX
The board receives the RS-232 information through this pin
TX
The board transmits RS-232 information through this pin
RTS
The host asks the chip if it can send information through this pin
CTS
The chip signals that it is ready to accept information through RX
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
23
PLC LV Development Board
3.3.5
Power Supply Circuit
This section takes the power from the powerline and generates 5-V DC voltage for the operation of
the PLC transceiver, transmit amplifier, and other components on the chip.
Table 3-3. Key Power Supply Circuitry Components
Component
Description
J2
Connector for the wall wart, power adapter, and daisy chain cables
U2
5-V regulator
J3
2-pin header to connect other boards in daisy chain and power them. The cable for this is provided with the kit. Connect a maximum of five boards in one daisy chain. It is important to maintain the same polarity of the power for both DC and AC input voltages. The AC polarity must be
the same for all boards because the '–' power input terminal is connected directly to the ground
reference on the board
DS1
Blue LED, which is on when the board is powered
The key components are circled in the following schematic.
Figure 3-8. Power Supply Schematic
3.3.6
Transmit Amplifier and Receive Filter
The transmit signal from the FSK_OUT pin of the CY8CPLC20 device is amplified (to drive the signal on the powerline). The passive receive filter prepares the signal for the FSK_IN pin of the
CY8CPLC20 device.
Table 3-4. Key Transmit Amplifier Components
Component
24
Description
U3, Q1, Q2
These opamp and high-gain transistors are used for power amplification of the transmitted PLC
signal.
Q3
This transistor controls whether the transmit circuit is enabled or is in a high-Z state. Its input is
the TX_DISABLE signal from the PLC device.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
PLC LV Development Board
The key components are circled in the following schematic.
Figure 3-9. Transmit Filter, Transmit Amplifier, and Receive Filter
3.3.7
Low Voltage Coupling Circuit
This circuit couples the signal from the board on to the powerline. On the receive side, the same circuit couples the carrier from the powerline into the board, while filtering out the power and low frequency content on the powerline.
Table 3-5. Key Transmit and Receive Coupling Components
Component
Description
L1
This inductor blocks high frequency signals (for example, FM radio) from entering the receiver.
It also offsets the impedance of capacitor C30 to have a lower transmit impedance.
L2
This inductor, along with C1, filters out low frequency signals (for example, power) and presents a high impedance to the 132 kHz PLC signal.
C1
This is the coupling capacitor that couples the PLC signal and blocks the low frequency signals. Its voltage rating must be higher than the voltage on the powerline.
The key components are circled in the following schematic.
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
25
PLC LV Development Board
Figure 3-10. Coupling Circuit
3.4
Code Example
The CY3275 kit is designed for systems that require a communication interface over commercial
low-voltage powerlines. The CY8CPLC20 device combines the robustness and ease-of-use of the
PLC solution with the configurability and flexibility of the PSoC core. The CY8CPLC20 device provides the ability to run your own application. The PLT User Module manages the network protocol
and the physical layer FSK modem, which transmits and receives messages over the powerline. For
more information on this user module, see AN54416, Using CY8CPLC20 in Powerline Communication (PLC) Applications.
3.5
Technical Reference
For a real-time list of knowledge base articles for the CY3275 kit, refer to the Online Knowledge
Base.
For help with the installation of the control panel, see the Control Panel User Guide provided in the
kit CD. You can also download the latest revision of the GUI setup and user guide from http://
www.cypress.com/go/plc.
26
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.
Appendix
A.1
Schematics
A.1.1
Board Overview
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
27
A.1.2
28
User Interface
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.1.3
Transmit and Receive Filter Coupling
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
29
A.1.4
30
Power Supply
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.2
Layout
A.2.1
Top Layer
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
31
A.2.2
32
Ground Layer
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.2.3
Power Layer
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
33
A.2.4
34
Bottom Layer
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.2.5
Top Silkscreen
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
35
A.2.6
36
Bottom Silkscreen
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
A.3
Bill of Materials
Description
Capacitor Ceramic 0.47UF 50V X7R 10%
1206
Designator
Qty.
Value
Manufacturer
Mfr. Part No.
C1
1
0.47uF
TDK
C3216X7R1H474K
Capacitor 100UF 10V ALUM LYTIC RADIAL C2
1
100uF
PANASONIC
ECA-1AM101
Capacitor Electrolytic 220uF 50V
C3
1
220uF
PANASONIC
ECA-1HM221
Capacitor Ceramic 0.1uF 25V X7R 0603
C4, C7, C9
3
0.1uF
AVX
06033C104JAT2A
Capacitor Ceramic 0.01uF 25V C0G 5%
0603
C5
1
0.01uF
TDK
C1608C0G1E103J
Capacitor Ceramic 1.0uF 16V X7R 0603
C6, C35
2
1uF
Murata
GRM188R71C105KA12D
Capacitor Ceramic 1UF 50V Y5V 0805
C8
1
1.0uF
Murata
GRM21BF51H105ZA12L
Capacitor Ceramic 0.01uF 25V X7R 0603
C26, C34
2
0.01uF
AVX
06033C103JAT2A
Capacitor 1.0uF, 16V
C27
1
1.0uF,16V
Capacitor 0.1uF, 16V
C28
1
0.1uF,16V
Capacitor 0.47uF, 16V
C29, C30, C31
3
0.47uF,16V
Capacitor Ceramic 22pF 100V C0G 0603
C32, C33
2
22pF
Murata
GRM1885C2A220JA01D
Capacitor Ceramic 0.1uF 25V X7R 0603
C36
1
0.1uF
AVX
06033C104JAT2A
Capacitor 0.1uF
C37, C38
2
0.1uF
Vishay
293D106X9010A2TE3
Diodes Inc.
ES1B-13-F
Capacitor 10uF,10V
C39
1
10uF,10V
Capacitor 100pF
C41
1
100pF
Diode Super Fast 100V 1A
D1
1
Diode TVS 33V 600W BI-DIR SMB
D2
1
Littelfuse
SMBJ33CA
Diode Schottky 40V 0.3A SOT-23
D3
1
ST Micro
BAT54SFILM
Diode Ultrafast 100V 1A
D4, D5
2
Diodes Inc.
ES1B
Blue LED
DS1
1
LED Red Clear 0805
DS2
1
Blue
SML-E12BC7TT86
Lite-On
LTST-C170KRKT
LED Green Clear 0805
DS3
1
Lite-On
LTST-C170KGKT
LED Yellow Clear 0805
DS4
1
Lite-On
LTST-C170KSKT
3M solderless breadboard super strip
H1
1
Parallax
700-00012
Header, 10-Pin
J1, J10, J12, J18
4
Power connector
J2
1
CUI Inc
PJ-102A
Power Header, 2-Pin
J3
1
MOLEX
09-65-2028
Tyco
5557785-1
10
Header, 4-Pin
J9, J13, J17, J20
4
ICE Connection
J14
1
4
ISSP Conn
J15
1
Header, 4-Pin
J16
1
4
Female DB-9
J19
1
DB9-F
ISSP Conn
J21
1
(DO NOT POPULATE) Power Connector
Jack 2.1mm PCB
J22
(DO NOT POPULATE) Right Angle 2X13
header 0.1" Spacing
J23
Header, 2-Pin, Male
JP1, JP3, JP4, JP5
4
Ferrite Chip 100 OHM 4A 0805
L1
1
TDK
MPZ2012S101A
Inductor PWR UNSHIELD 470UH SMD
L2, L3
2
470uH
Pulse
P0752.474NLT
14-Pin header, Female
LCD1
1
14
3M/ESD
929850-01-36-RA
2
Generic Components
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
37
Description
Designator
Qty.
Red LED
LED1, LED2, LED3,
LED4
4
Mounting Holes
MTG1, MTG2,
MTG3, MTG4
4
Transistor NPN 45V 3A
Q1
1
Value
Manufacturer
Red
Mfr. Part No.
SML-LXT0805IW-TR
Zetex
ZXT690BKTC
ZXT790AKTC
Transistor PNP 40V 3A
Q2
1
Zetex
Transistor NPN SOT-23
Q3
1
Fairchild
MMBT3904LT1
Resistor 402 OHM 1/10W 1% 0603 SMD
R1
1
402
Rohm
MCR03EZPFX4020
Resistor 10 OHM 1W 5% METAL OXIDE
R2
1
10 Ohm,
1W
Stackpole
RSMF 1 10 5% R
Resistor 240 OHM 1/10W 1% 0603 SMD
R3
1
240
Rohm
MCR03EZPFX2400
Resistor 715 OHM 1/10W 1% 0603 SMD
R4
1
715
Rohm
MCR03EZPFX7150
Resistor 0.0 OHM 1/10W 5% 0603 SMD
R5
1
0
Rohm
MCR03EZPJ000
Resistor 10.0k 1% 1/10W 0603
R6, R8, R9, R12,
R16, R18, R19,R20
8
10.0K
Rohm
MCR03EZPFX1002
Resistor 100 OHM 1/10W 1% 0603 SMD
R7
1
100
Rohm
MCR03EZPFX1000
Resistor 620 OHM 1/10W 1% 0603 SMD
R10, R11
2
620
Rohm
MCR03EZPFX6200
Resistor 0.5 1% 1/4W 0805
R13, R17
2
0.5 1/4W
Susumu
RL1220S-R50-F
Resistor 1.00k 1% 1/10W 0603
R14, R23, R24
3
1.00k
Yageo
RC0603FR-071KL
Resistor 4.99 1% 1/10W 0603
R15
1
4.99
Yageo
RC0603FR-074R99L
Resistor 4.70K OHM 1/10W 1% 0603 SMD
R21
1
4.7K
Yageo
RC0603FR-074K7L
Resistor 330 Ohm 1% 1/10W 0603
R22
1
330
Rohm
MCR03EZPFX3300
Potentiometer
R46, R47
2
Bourns Inc
3352T-1-103LF
Resistor 1.0K, SMT
R48, R49, R50,
R51, R61, R62,
R63, R64, R65
9
1K
Panasonic
ERJ-6GEYJ102V
Resistor 7.50k 1% 1/10W 0603
R52, R53
2
7.50K
Rohm
MCR03EZPFX7501
Resistor 2.10k 1% 1/10W 0603
R54
1
2.10K
Rohm
MCR03EZPFX2101
Resistor 56 Ohm, SMT
R57, R58, R59, R60
4
56
Swtich, SPST
S1, S4
2
Omron
B3F-1022
4009 Series DIP Switch, Raised actuator
S3
1
ESwitch
KAJ08LAGT
Simple Test point
TP1, TP2, TP3, TP4
4
Simple Test point
TP5
1
Simple Test point
TP6
1
CY8CPLC20 OCD Part
U1
1
Cypress
CY8CPLC20-OCD
Voltage Regulator 5 Volt
U2
1
ST Micro
LM317MTG
National Semiconductor
LMH6639MF/NOPB
Op-Amp 190MHz
U3
1
RS-232 tranceiver (1.0uF Caps)
U8
1
Oscillator
Y1
1
MAX3232ECDR
24.00 MHz Crystek
Y1 (2nd source)
Crystal 32.768kHz 12.5pF
Y2
1
LCD Module
LCD1
1
38
32.768kHz
C3290-24.000
Citizen
CSX750FCC24.000M-UT
ECS Inc.
ECS-3X8X
Cypress Semiconductor
1187-00003
CY3275 Cypress Low Voltage Programmable PLC Development Kit Guide, Doc. # 001-53657 Rev. *C
工商网监
湘ICP备2023018690号
