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Infineon Technologies 的 CY8CKIT-026 CAN and LIN Shield Kit Guide 規格書
EMPRESS
Copyrights
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 2
Copyrights
© Cypress Semiconductor Corporation, 2015-2017. This document is the property of Cypress Semiconductor Corporation
and its subsidiaries, including Spansion LLC ("Cypress"). This document, including any software or firmware included or ref-
erenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United
States and other countries worldwide. Cypress reserves all rights under such laws and treaties and does not, except as spe-
cifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other intellectual property
rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with
Cypress governing the use of the Software, then Cypress hereby grants you a personal, non-exclusive, nontransferable
license (without the right to sublicense) (1) under its copyright rights in the Software (a) for Software provided in source code
form, to modify and reproduce the Software solely for use with Cypress hardware products, only internally within your organi-
zation, and (b) to distribute the Software in binary code form externally to end users (either directly or indirectly through resell-
ers and distributors), solely for use on Cypress hardware product units, and (2) under those claims of Cypress's patents that
are infringed by the Software (as provided by Cypress, unmodified) to make, use, distribute, and import the Software solely
for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation of the Software
is prohibited.
TO THE EXTENT PERMITTED BY APPLICABLE LAW, CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE OR ACCOMPANYING HARDWARE, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE. To the extent permitted by applicable law, Cypress reserves the right to make changes to this document without fur-
ther notice. Cypress does not assume any liability arising out of the application or use of any product or circuit described in
this document. Any information provided in this document, including any sample design information or programming code, is
provided only for reference purposes. It is the responsibility of the user of this document to properly design, program, and test
the functionality and safety of any application made of this information and any resulting product. Cypress products are not
designed, intended, or authorized for use as critical components in systems designed or intended for the operation of weap-
ons, weapons systems, nuclear installations, life-support devices or systems, other medical devices or systems (including
resuscitation equipment and surgical implants), pollution control or hazardous substances management, or other uses where
the failure of the device or system could cause personal injury, death, or property damage ("Unintended Uses"). A critical
component is any component of a device or system whose failure to perform can be reasonably expected to cause the failure
of the device or system, or to affect its safety or effectiveness. Cypress is not liable, in whole or in part, and you shall and
hereby do release Cypress from any claim, damage, or other liability arising from or related to all Unintended Uses of Cypress
products. You shall indemnify and hold Cypress harmless from and against all claims, costs, damages, and other liabilities,
including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress products.
Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-
RAM, and Traveo are trademarks or registered trademarks of Cypress in the United States and other countries. For a more
complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respec-
tive owners.
{EMPRESS
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 3
1. Introduction 6
1.1 Kit Contents .................................................................................................................6
1.2 Getting Started.............................................................................................................7
1.3 Additional Learning Resources....................................................................................9
1.4 Technical Support......................................................................................................10
1.5 Acronyms...................................................................................................................10
1.6 Document Conventions .............................................................................................10
2. Installation 11
2.1 Before You Begin.......................................................................................................11
2.2 Install Software ..........................................................................................................12
2.3 Uninstall Software......................................................................................................14
2.4 Install Hardware.........................................................................................................14
3. Hardware 15
3.1 System Block Diagram ..............................................................................................15
3.2 CAN Physical Layer Transceiver Circuits ..................................................................17
3.3 LIN Physical Layer Transceiver Circuits ....................................................................20
3.4 Status LEDs...............................................................................................................22
3.5 Port Options with CY8CKIT-042/044 Pioneer Kit ......................................................23
3.6 Power Supply Configurations ....................................................................................24
4. Kit Operation 30
4.1 Default Jumper Settings on CY8CKIT-026 ................................................................30
4.2 CAN Communication Hardware Setup ......................................................................30
4.3 Using CAN Bus Analyzer Tool...................................................................................32
4.4 LIN Communication Hardware Setup ........................................................................34
4.5 Using LIN Bus Analyzer Tool.....................................................................................35
5. Example Projects 37
5.1 Using the Kit Example Projects .................................................................................37
5.2 CAN_Simplex_Tx_CY8CKIT-044 ..............................................................................38
5.3 CAN_Simplex_Rx_CY8CKIT-044..............................................................................41
5.4 LIN_Slave_CY8CKIT-042..........................................................................................45
5.5 LIN_Slave_CY8CKIT-044..........................................................................................49
5.6 Multiple_LIN_Slave_CY8CKIT-042 ...........................................................................49
Appendix 54
Schematics 54
Gerber Files 58
Bill of Materials 62
Contents
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 4
Safety Information
Regulatory Compliance
The CY8CKIT-026 CAN and LIN Shield Kit is intended for use as a development platform for
hardware or software in a laboratory environment. The board is an open system design, which does
not include a shielded enclosure. This may cause interference to other electrical or electronic
devices in close proximity. In a domestic environment, this product may cause radio interference. In
such cases, you may be required to take adequate preventive measures. In addition, this board
should not be used near any medical equipment or RF devices.
Attaching additional wiring to this product or modifying the product operation from the factory default
may affect its performance and cause interference with other apparatus in the immediate vicinity. If
such interference is detected, suitable mitigating measures should be taken.
The CAN and LIN Shield Kit, as shipped from the factory, has been verified to meet with the
requirements of CE as a Class A product.
The CAN and LIN Shield Kit contains ESD-sensitive
devices. Electrostatic charges readily accumulate on the
human body and any equipment, and can discharge without
detection. Permanent damage may occur on devices
subjected to high-energy discharges. Proper ESD
precautions are recommended to avoid performance
degradation or loss of functionality. Store unused kit boards
in the protective shipping package.
End-of-Life/Product Recycling
This kit has an end-of life five years from the date of
manufacture mentioned on the back of the box. Contact your
nearest recycler for discarding the kit.
EMPRESS
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 5
General Safety Instructions
ESD Protection
ESD can damage boards and associated components. Cypress recommends that you perform
procedures only at an ESD workstation. If such a workstation is not available, use appropriate ESD
protection by wearing an antistatic wrist strap attached to the chassis ground (any unpainted metal
surface) on your board when handling parts.
Handling Boards
CAN and LIN Shield Kit boards are sensitive to ESD. Hold the board only by its edges. After
removing the board from its box, place it on a grounded, static-free surface. Use a conductive foam
pad if available. Do not slide the board over any surface.
@chREss
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 6
1. Introduction
Thank you for your interest in the CY8CKIT-026 CAN and LIN Shield Kit. This kit is intended to
demonstrate the CAN and LIN bus communications in Cypress’s PSoC® products.
The CY8CKIT-026 CAN and LIN Shield Kit is an Arduino compatible shield board that is used with
several Cypress kits such as the CY8CKIT-042 PSoC 4 Pioneer Kit/CY8CKIT-044 PSoC 4 M-Series
Pioneer Kit or FM4-176L-S6E2GM - ARM® Cortex®-M4 MCU Pioneer Kit. It enables you to evaluate
the Controller Area Network (CAN) and Local Interconnect Network (LIN) slave communication
capability of Cypress devices. You can design your own projects with easy-to-use CAN and LIN
slave components in Cypress’s PSoC Creator™ software, or by altering code examples provided
with this kit.
This kit guide provides details on the kit contents, hardware, example projects, schematics, and
BOM.
1.1 Kit Contents
The CY8CKIT-026 CAN and LIN Shield Kit contains the following, as shown in Figure 1-1:
■CAN and LIN Shield Board
■Three jumper wires (5 inches each)
■Three jumper wires (4 inches each)
■Four connectors (one 10 × 1, two 8 × 1 and one 6 × 1)
■Quick Start Guide
Figure 1-1. CY8CKIT-026 CAN and LIN Shield Kit
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 7
Introduction
Inspect the contents of the kit; if anything is missing, contact your nearest Cypress sales office for
assistance. Go to www.cypress.com/support for more information on Cypress sales offices and
support.
1.1.1 Kit Compatibility
This kit contains an Arduino compatible shield board and requires other Cypress kits (Ardunio
compatible) to use it. It is designed to add CAN and LIN capabilities to the PSoC 4 Series Pioneer
Kits (CY8CKIT-042/44) and FM4 kits such as FM4-176L-S6E2GM - ARM Cortex-M4 MCU Pioneer
Kit.
This kit is also compatible with any other general Arduino compatible Kit which supports CAN/LIN
protocol.
CAN and LIN are communication protocols and require more than one CAN or LIN node to set up
communication between nodes. Therefore, it is recommended to have two CY8CKIT-044 Pioneer
Kits or other compatible kits and two CY8CKIT-026 CAN and LIN Shield Kits. This enables you to set
up CAN communication between two CAN nodes. An alternative recommendation is to have a CAN
or LIN bus emulator or analyzer. This enables you to emulate a CAN or LIN node to communicate
with the PSoC CAN or LIN controller. See sections Using CAN Bus Analyzer Tool on page 32 and
Using LIN Bus Analyzer Tool on page 35 for more details on using a CAN analyzer or LIN analyzer
tool with this kit.
For detailed information about the differences between PSoC 4 devices, go to
www.cypress.com/psoc. For more information about Cypress kits, go to the Cypress Store at
www.cypress.com/shop.
1.2 Getting Started
This guide will help you to get acquainted with the CY8CKIT-026 CAN and LIN Shield Kit:
■The Installation chapter on page 11 describes the installation of the kit software. This includes the
PSoC Creator IDE to develop and debug the applications, and PSoC Programmer to program the
.hex files on to the device.
■The Hardware chapter on page 15 details the hardware content of the kit and the hardware
operation.
■The Kit Operation chapter on page 30 explains you on how to set-up the hardware connections in
order to establish CAN and LIN communication using CY8CKIT-026.
■The Example Projects chapter on page 37 describes code examples that will help you
understand how to create your own CAN and LIN communication projects on PSoC 4.
■The Appendix chapter on page 54 provides schematics, layout and the bill of materials (BOM).
Refer to the kit web page for the latest information on using this kit with various Cypress devices.
The web page will be updated as new devices and development kits compatible with this shield are
released to the market.
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 8
Introduction
1.2.1 Beginner Resources
An overview of PSoC devices is available at www.cypress.com/psoc. The web page includes a list of
PSoC device families, integrated design environments (IDEs), and associated development kits. In
addition, refer to the following documents to get started with PSoC 4 devices and CAN/LIN
communication:
■AN79953 - Getting Started with PSoC® 4.
■CE97311 - PSoC® 4 M: CAN Simplex Communication with CapSense®.
■CE96999 - Basic LIN Slave Implementation in PSoC® 4.
■PSoC Creator 101 Training Series.
■CE211027 - CAN Communication between FM4-S6E2Gx Series and PSoC® 4 M-Series using
the CY8CKIT-026 CAN and LIN Shield Kit.
1.2.2 Hardware Requirements
CY8CKIT-026 plugs into any Arduino™ hardware-compatible development platforms from Cypress.
This Kit provides example projects targeting the CY8CKIT-042 PSoC 4 Pioneer Kit and
CY8CKIT-044 PSoC 4 M-Series Pioneer Kit. For FM4 Kit CAN example project and hardware
connections, please refer to the Code Example CE211027 - CAN Communication between
FM4-S6E2Gx Series and PSoC® 4 M-Series using the CY8CKIT-026 CAN and LIN Shield Kit.
Figure 1-2 shows how the CY8CKIT-026 Kit connects to the CY8CKIT-044 Kit.
Figure 1-2. CY8CKIT-026 Connected to CY8CKIT-044
You can purchase the CY8CKIT-042 kit from www.cypress.com/CY8CKIT-042 and
the CY8CKIT-044 kit from www.cypress.com/CY8CKIT-044.
1.2.3 Software Requirements
The CY8CKIT-026 kit does not have any programmable/configurable device onboard, so it does not
need any software for configuration. However, the PSoC device present on baseboards, such as
CY8CKIT-042 or CY8CKIT-044, requires firmware, which you can develop with the PSoC Creator
IDE (Version 3.3 SP1 or later).
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 9
Introduction
1.2.3.1 PSoC Creator
PSoC Creator allows concurrent hardware and application firmware design of PSoC 3, PSoC 4, and
PSoC 5LP systems. PSoC systems are designed using classic, familiar, schematic-capture
technology supported by pre-verified, production ready PSoC Components™.
PSoC Components are analog and digital virtual chips represented by icons that you can drag and
drop into a design and configure to suit a broad array of application requirements. You can configure
each Component in the rich, mixed-signal Cypress Component Catalog with the Component
Customizer tool. These Components include a full set of dynamically generated API libraries. After
you have configured the PSoC system, you can write, compile, and debug the firmware within PSoC
Creator, or export the firmware to other IDEs such as those from IAR, Keil, and Eclipse.
You can download the latest version of the PSoC Creator software from www.cypress.com/
psoccreator. Refer to the Release Notes for the minimum and recommended system requirements.
1.2.3.2 PSoC Programmer
The PSoC Programmer software is used to program the PSoC 4 devices on the CY8CKIT-042 kit
and CY8CKIT-044 kit with hex files. PSoC Programmer is installed along with PSoC Creator. You
can also download PSoC Programmer separately at www.cypress.com/psocprogrammer.
1.3 Additional Learning Resources
Visit www.cypress.com for additional learning resources in the form of datasheets, technical
reference manuals, and application notes.
Code Example CE97311 describes the implementation of CAN bus communication between two
PSoC 4 devices. It explains how to send and receive CAN messages. It has two example projects
which describe how to transmit/receive CAN messages using the CAN and LIN Shield Kit and
CY8CKIT-044 PSoC 4 M-Series Pioneer Kit.
Code Example CE96999 describes the implementation of LIN bus communication using PSoC. It
explains how to send and receive LIN messages. It has two example projects which describe how to
transmit/receive LIN messages using the CAN and LIN Shield Kit and CY8CKIT-042/CY8CKIT-044
PSoC 4 Pioneer Kits.
Code Example CE211027 describes the implementation of CAN bus communication between
FM4-S6E2Gx Series and PSoC 4 M-Series. FM4 acts as Transmitter and PSoC 4 M acts as a
receiver which changes the RGB LED color based on the commands received from the FM4.
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 10
Introduction
1.4 Technical Support
For assistance, go to our support web page (www.cypress.com/support) or contact our customer
support at +1(800) 541-4736 Ext. 2 (in the USA), or +1 (408) 943-2600 Ext. 2 (International).
1.5 Acronyms
1.6 Document Conventions
Table 1-1. Acronyms
Acronym Definition
BOM Bill of Materials
CAN Controlled Area Network
DLC Data Length Code
IDE Integrated Design Environment
LIN Local Interconnect Network
USB Universal Serial Bus
Table 1-2. Document Convention for Guides
Acronym Definition
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 Creator 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 Describe s Cautions or unique functionality of the product.
{EMPRESS
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 11
2. Installation
This chapter describes the steps to install the software tools and packages on a computer for using
the CAN and LIN Shield Kit along with PSoC Pioneer Kits. This includes the IDE on which the
projects will be built and used for programming.
2.1 Before You Begin
All Cypress software installations require administrator privileges, but these are not required to run
the software after it is installed. Close any other Cypress software that is currently running before
installing the kit software.
Note: By default, the kit contents are installed in C:\Program Files\Cypress\CY8CKIT-026
CAN and LIN SHIELD KIT\<version> for a 32-bit machine and C:\Program Files
(x86)\Cypress\CY8CKIT-026 CAN and LIN SHIELD KIT\<version> for a 64-bit machine.
This folder will contain the kit example projects. To open the examples, it is recommended to use the
procedure described in the Code Example documents. That procedure will create an editable copy
of the example in a path that you chose so that the original installed example will not be modified.
If you use a PSoC baseboard such as the CY8CKIT-042 or CY8CKIT-044 with the CY8CKIT-026
CAN and LIN Shield Kit, you will require the PSoC Creator and PSoC Programmer software
programs to be installed before the kit can be used. If you run the CY8CKIT-026 installer file
(CY8CKIT026Setup.exe), this will install PSoC Creator and Programmer. Otherwise, you can
install these programs by downloading them from the following locations:
■PSoC Programmer.
■PSoC Creator.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 12
Installation
2.2 Install Software
2.2.1 Installation from Internet
Perform these steps to install the CY8CKIT-026 CAN and LIN Shield Kit software from the internet
(this is done to ensure the latest software is installed):
1. Go to kit web page.
2. Download and run the installer executable file (CY8CKIT026Setup.exe).
3. Run the installer executable file after it is downloaded.
4. Select the folder to install the CY8CKIT-026 related files. Choose the directory and click Next
(see Figure 2-1).
Figure 2-1. Installation Folder
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Installation
5. Select the Installation Type as Typical and click Next (see Figure 2-2).
Figure 2-2. Installation Type Options
6. Read and accept the End-User License Agreement and click Next to proceed with the
installation. After the installation is complete, the kit contents are available at the following
location: C:\Program Files (x86)\Cypress\CY8CKIT-026 CAN and LIN SHIELD
KIT\<version>
Note: Follow all on-screen prompts to proceed with the installation. When installing the kit software,
the installer checks if the prerequisite software is installed in your system. These include PSoC
Creator, PSoC Programmer, Windows Installer, .NET (v4.0), and Acrobat Reader. If these
applications are not installed, the installer prompts you to download and/or install them.
EMPRESS
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 14
Installation
2.3 Uninstall Software
Perform these steps to uninstall the CY8CKIT-026 CAN and LIN Shield Kit software:
1. Go to Start > All Programs > Cypress > Cypress Update Manager and select the Uninstall
button that corresponds to the kit software. Follow the on-screen prompts to uninstall the soft-
ware. This is a program that is installed along with other Cypress software.
2. Go to Start > Control Panel > Programs and Features for Windows 7 or Add/Remove
Programs for Windows XP; select the Uninstall/Change button.
2.4 Install Hardware
Perform these steps to install the hardware:
1. The Shield board must be physically attached to the Arduino header of the CY8CKIT-042/044
Pioneer Kit.
Note: This kit guide explains how to use this Shield Kit with Arduino headers of the CY8CKIT-
044/042 Pioneer Kit. You can also attach this board to any Arduino based kit (controller must
support CAN/LIN protocol). Modify pin assignments of the example projects to use with other kits.
See Port Options with CY8CKIT-042/044 Pioneer Kit on page 23 for pin assignment details and
limitations of using with CY8CKIT-044/042 Pioneer Kit Arduino ports.
2. Connect a USB Mini cable to your computer, to program this kit’s code examples into the PSoC
device. Follow the instructions in the QSG (Quick Start Guide) documentation of the
corresponding kit to connect it to your computer.
3. For the CAN example evaluation, perform these steps:
a. Connect two CAN and LIN shield boards together with a male-to-male, 9-pin, RS-232 cable
with “straight-through” connections, as shown in Figure 4-1 on page 31, or
b. Connect a CAN analyzer to DB9 female connector of the Shield Kit.
For the LIN example evaluation, connect VCC, LIN bus, and GND of the LIN analyzer to
connector J5 or J14 of the Shield Kit.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 15
3. Hardware
3.1 System Block Diagram
The actual kit hardware files i.e., Schematic, Gerber, BOM etc are available in the installer directory
i.e., <Install_Directory>\CY8CKIT-026 CAN and LIN SHIELD KIT\<version>\Hardware
The CAN and LIN Shield Kit hardware consists of the following functional blocks:
■2-CAN transceiver circuits (TJA1051T and TJA1055T)
■2-LIN transceiver circuits in slave configuration (TJA1020)
■Three status indicator LEDs
■Arduino header
■12 V input Power Jack and Screw terminals for the same
■Power circuitry for 12 V to 5 V dc conversion
■PMIC for 12 V to 5 V dc conversion (not populated)
The primary functional blocks of this Shield Kit are the four transceiver circuits: two CAN transceiver
circuits and two LIN transceiver circuits. Each of these transceiver circuits enables a digital CMOS
PSoC device to interface with a physical CAN or LIN bus, respectively. Without these transceiver
circuits, it is impossible for CMOS devices to communicate with other CAN or LIN nodes on a CAN
or LIN bus.
The LEDs functional block consists of three active-low LEDs that can provide indications. These
LEDs are driven by PSoC pins. The Arduino connector connects the configured PSoC I/O pins to the
various circuits on the Shield board. Figure 3-1 shows the CY8CKIT-026 kit components.
Figure 3-1. CY8CKIT-026 CAN and LIN Shield Kit
1. DB9 female connector for CAN2
2. 12 V Power jack
3. 12 V input screw terminal
4. 12 V – 5 V power regulator
5. LIN2 I/O connector
6. LIN2 transceiver TJA1020T/CM
7. Cypress PMIC S6BP202A*
8. CAN2 transceiver TJA1051T/3
9. Power selection jumper
10. 3-Pin male connector for LIN2
11. 12 V power jumper (from LIN2)
12. CAN2 I/O connector
13. CAN2 termination resistor jumper
14. Arduino™ compatible main board
I/O header (J3 and J4)
15. LIN1 transceiver TJA1020
16. 3-Pin male connector for LIN1
17. 12 V power jumper (from LIN1)
18. CAN1 I/O connector
19. CAN1 transceiver TJA1055T/3C
20. Status LEDs
21. Arduino compatible main board I/O header (J2)
22. Arduino compatible main board power header (J1)
23. LIN1 I/O connector
24. 12 V power jumper (from CAN1)*
25. CAN1 screw terminal*
26. DB9 female connector for CAN1
27. CAN2 screw terminal*
28. 12 V power jumper (from CAN2)*
12
3
4
5
6
7
8
910
11
12
14
13
15
16
17
18
19
20
21
22
23
24
25 26 27 28
*Not populated
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 17
Hardware
3.2 CAN Physical Layer Transceiver Circuits
The CY8CKIT-026 has two CAN transceivers: one is low speed (up to 125 Kbps baud rate) and fault
tolerant, and the other is high speed (up to 2 Mbps baud rate). The PSoC 4M device supports two
CAN modules, so these two transceivers enable you to use both of them to connect to CAN net-
works.
The CAN physical layer transceiver circuits (CAN1 Transceiver and CAN2 Transceiver) on the shield
board use TJA1055T and TJA1051T CAN transceiver devices. These devices translate differential
CAN bus signals to and from digital CMOS signals.
■CAN1 Transceiver (TJA1055T)
Three signals are used between this circuit and the CAN (PSoC 4) controller. These signals are
CAN1_RX, CAN1_TX, and CAN1_ERR. Data signals on the CAN bus are driven to the PSoC
CAN1_RX signal. Data signals on the PSoC CAN1_TX signal are driven onto the CAN bus. The
CAN1_ER signal is used to indicate an error event. See the TJA1055T device datasheet for details
on each of these three pins of the CAN transceiver.
■CAN2 Transceiver (TJA1051T)
Three signals are used between this circuit and the CAN (PSoC 4) controller. These signals are
CAN_RX, CAN_TX, and CAN_EN. Data signals on the CAN bus are driven to the PSoC CAN2_RX
signal. Data signals on the PSoC CAN2_TX signal are driven onto the CAN bus. The CAN_EN
signal enables and disables the CAN transceiver. See the TJA1051T device datasheet for details on
each of these three pins of the CAN transceiver.
3.2.1 CAN Bus Clock Accuracy
For accurate CAN communication, a CAN controller device must typically have a clock source with a
frequency tolerance of 0.5% or less for bit-rates faster than 125 Kbps and at least 1.58% for
125 Kbps or slower bit-rates. Therefore, the device used as the CAN controller must meet this
requirement. Otherwise, an external clock source that is more accurate must be used. But, PSoC 4
has a great feature where you can trim the internal IMO clock up to 0.5% accuracy. See CE97311
code example for details on the clock configuration of this kit's code examples.
3.2.2 CAN Bus Connector
Table 3-1 shows the pinout of the CAN DB9 connectors (J8 and J17) on the shield board. The CAN
Bus connectors (DB9 connectors) for the two transceiver circuits have the same pin configuration.
Table 3-1. CAN Connector Point
Pin Signal
1NC
2CAN_L
3GND
4NC
5NC
6GND
7CAN_H
8NC
9 NC (VIN = 12 V)
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 18
Hardware
By default, pin 9 of the CAN connector is left floating. However, if the jumper (J13 for CAN1
transceiver and J21 for CAN2 transceiver) is populated, pin 9 of the CAN connector is connected to
the VIN power rail of the Shield board. This is useful if you want to power up other CAN nodes
through the CAN connector or if you want to power up the Shield board from the power supply of
some other CAN node.
3.2.3 CAN Bus Termination for CAN1 Transceiver
The CAN specification requires that CAN nodes located physically at the end of the CAN bus must
terminate the CAN differential signals with 120 . TJA1055 has CAN Bus termination pins as RTH
and RTL which are connected to CAN_H and CAN_L with 120 respectively.
3.2.4 CAN Bus Termination for CAN2 Transceiver
The CAN specification requires that CAN nodes located physically at the end of the CAN bus must
terminate the CAN differential signals with 120. The Shield Kit features a 120- termination resis-
tor (R17) that can be enabled or disabled by using jumper J10. If J10 is populated, the termination
resistor is active. If J10 is not populated, the termination resistor is not active.
By default, the termination resistor is active (J10 is populated).
Figure 3-4. J10 Jumper
Caution: Ensure extra care when populating jumpers J13 or J21. The shield Kit or Pioneer Kit can
be damaged if the shield has it’s own power supply powering the VIN rail and a different power
supply is connected through pin 9 of the CAN connectors.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 19
Hardware
3.2.5 Choke Footprint
A footprint for a common-mode signal suppression choke is available on the shield board for both
the transceiver circuits, but these are not populated. These footprints can be populated with a
B82789C0 (or equivalent) choke to suppress common-mode signals on the CAN bus. If a choke
component is mounted on the L2 footprint (for CAN1 transceiver), resistors R29 and R35
must be removed from the board. If a choke component is mounted on the L3 footprint (for
CAN2 transceiver), resistors R15 and R19 must be removed from the board. The choke
component has no effect if these two resistors are not removed.
Figure 3-5. Choke Footprints for CAN1 and CAN2 transceivers
3.2.6 CAN Signal Connector for CAN1 Transceiver
Table 3-2 shows the pinout of the 3-pin female CAN signal connector (J19) on the shield board.
CAN1_TX and CAN1_RX pins needs to be connected to the CAN TX pin, CAN_RX pin of the PSoC
(microcontroller) respectively, using external connecting wires. CAN1_ER pin is used for error
indication which should be connected to a GPIO pin of the microcontroller. These connections are
not hard-wired on the board so that maximum flexibility for the CAN pin placement in the
microcontroller is provided.
3.2.7 CAN Signal Connector for CAN2 Transceiver
Table 3-3 shows the pinout of the 3-pin female CAN signal connector (J9) on the shield board.
Table 3-2. CAN1 Signal Connector Pinout
Pin Signal
1CAN1_TX
2CAN1_RX
3CAN1_ER
Table 3-3. CAN2 Signal Connector Pinout
Pin Signal
1CAN2_EN
2CAN2_TX
3CAN2_RX
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 20
Hardware
CAN2_TX and CAN2_RX pins need to be connected to the CAN TX pin, CAN_RX pin of the PSoC
(microcontroller) respectively, using external connecting wires. CAN2_EN pin is used enable/disable
the transceiver which should be connected to the CAN_EN pin of the microcontroller. The trans-
ceiver is enabled by default. These connections are not hard-wired on the board so that maximum
flexibility for the CAN pin placement in the microcontroller is provided.
3.3 LIN Physical Layer Transceiver Circuits
The CY8CKIT-026 has two LIN transceivers. Since some PSoC 4 devices support two LIN slaves,
these two transceivers enable you to use both of them simultaneously.
The two LIN physical layer transceiver circuits on the shield board use a TJA1020 LIN
transceiver device. This device translates high-voltage LIN bus signals to and from digital CMOS
signals with standard TTL voltage levels.
Three signals are used between each LIN circuit and the LIN (PSoC 4) controller. For the LIN1 cir-
cuit, the three signals are: LIN1_RX, LIN1_TX, and LIN1_NSLP. For the LIN2 circuit, the signals are:
LIN2_RX, LIN2_TX, and LIN2_NSLP. Data signals on the LIN bus are sent to the PSoC by the
LINx_RX signal. Data signals driven by the PSoC on the LINx_TX signal will be driven onto the LIN
bus. The LINx_NSLP signals are used to put the LIN transceiver device in and out of sleep.
By default, there are no pull-up resistors on the LINx_TX signals. A pull-up resistor footprint is pro-
vided (R25 on LIN1_TX and R10 on LIN2_TX) on each LINx_TX signal if you want to have a pullup
resistor on this signal. See the TJA1020 device datasheet for details on each of the three signals of
the LIN transceiver.
3.3.1 LIN Bus Connectors
Figure 3-6 shows the pinout of both of the 3-pin LIN connectors (J14 for LIN1 transceiver and J5 for
LIN2 transceiver) on the shield board.
Figure 3-6. LIN Connector Pinouts
By default, the jumpers J16 and J7 are populated. These connect pin 3 (VBAT1) of the LIN1
connector and pin 3 (VBAT2) of the LIN2 connector to the VIN power rail of the Shield Kit,
respectively. This is useful if you want to power up other LIN nodes/analyzers through either of the
LIN connectors, or if you want to power the Pioneer Kit and shield board from the power supply
(12 V) of some other LIN node (LIN analyzer).
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 21
Hardware
Ensure extra care when connecting an analyzer to either of the LIN connectors. If the LIN analyzer
provides 12 V supply already to its VBAT pin, remove jumper J16 for LIN1 connector and J7 for LIN2
connector or do not power the shield with external 12 V supply through the J11 and J12 connectors.
3.3.2 Using the LIN Transceiver NWAKE Pins
Both TJA1020 LIN transceiver devices have an NWAKE input that can be used to wake up a sleep-
ing LIN bus without interaction from the PSoC LIN controller. If the NWAKE input needs to be used
for either LIN circuit, the signal can be accessed using the test points on the board labeled with
NWAKE1 for LIN1 transceiver circuit and NWAKE2 for LIN2 transceiver circuit, respectively, as
shown in Figure 3-7.
Figure 3-7. NWAKE Test Points
3.3.2.1 LIN Signal Connector for LIN transceivers
Table 3-4 shows the pinout of the 3-pin female LIN signal connector (J15 for LIN1 and J6 for LIN2)
on the shield board.
LINx_RX, LINx_TX and LINx_NSLP pins need to be connected to the LIN RX pin, LIN TX pin and
GPIO (enable/sleep control) pin of the microcontroller respectively, using external connecting wires.
These connections are not hard-wired on the board so that maximum flexibility for the LIN pin
placement in the microcontroller is provided.
Warning: Since the jumpers J16 and J7 are populated by default, ensure extra care while
connecting the LIN analyzer VBAT pin to the shield kit pin. The Shield Kit or Pioneer Kit or the
supply adapter can be damaged if the Shield Kit and Pioneer Kit are powered by a power supply at
the VIN rail and a different power supply is connected through pin 3 of either of the LIN
connectors.
Table 3-4. LIN Signal Connector Pinout
Pin Signal
1LINx_RX
2LINx_TX
3LINx_NSLP
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 22
Hardware
3.3.3 LIN Master and Slave Configurations
By default, both the LIN circuits are configured for LIN slave operation. Table 3-5 shows how each
circuit is populated by default to configure it for the LIN slave mode.
The components can be replaced as provided in Table 3-6 to change the circuit from a slave to a
master.
3.4 Status LEDs
The shield board has three status LEDs: Red, Yellow, and Green. The LEDs are active-low, and they
must each be driven with a sink current of approximately 2 mA to turn them ON.
The three LEDs (Red, Yellow, and Green) (see Figure 3-8) are connected to the D13, D12 and D11
pins of the Arduino connector (J3) respectively.
Figure 3-8. Schematic for Status LEDs
Table 3-5. Configuration for LIN Slave Operation (Default)
Pin Diode Resistor Capacitor
LIN1 (Slave) D4 is not populated R22 is not populated C20 is 1 nF
LIN2 (Slave) D2 is not populated R7 is not populated C13 is 1 nF
Table 3-6. Configurations for LIN Master Operation
Pin Diode Resistor Capacitor
LIN1 (Master) D4 is PMLL4148L R22 is 1 kC20 is 220 pF
LIN2 (Master) D2 is PMLL4148L R7 is 1 kC13 is 220 pF
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 23
Hardware
All three LEDs can be completely isolated from the rest of the Pioneer Kit by removing resistor R38,
which is a 0 resistor. This is useful if the LEDs are not needed, but other circuits on the Shield Kit
are needed. In this case, isolating the LEDs ensures that they do not interfere with other circuits that
share the same pins.
3.5 Port Options with CY8CKIT-042/044 Pioneer Kit
The CAN and LIN Shield Kit connects to the CY8CKIT-042 or CY8CKIT-044 PSoC 4 series Pioneer
Kits through the Arduino header connector. Table 3-7 shows how the signals on the CAN and LIN
shield board map to the pins on Arduino header of the CY8CKIT-042 and CY8CKIT-044 Pioneer
Kits.
Table 3-7. Arduino Port Pin Connections
Arduino Connector Pin CY8CKIT-042 CY8CKIT-044 CY8CKIT-026
J1
1 VIN VIN VIN
2 GND GND GND
3 GND GND GND
4 V5.0 V5.0 V5.0
5 V3.3 V3.3 V3.3
6 Reset Reset Reset
7 P4.VDD P4.VDD P4.VDD
8 NCNCNC
J2
1 P2.0 P2.0 A0
2 P0.2 P2.6 J2_2
3 P2.1 P2.1 A1
4 P0.3 P6.5 J2_4
5 P2.2 P2.2 A2
6 P4.VDD P0.6 J2_6
7 P2.3 P2.3 A3
8 P1.5 P4.4 J2_8
9 P2.4 P2.4 A4
10 P1.4 P4.5 J2_10
11 P2.5 P2.5 A5
12 P1.3 P4.6 J2_12
13 P0.0 P0.0 J2_13
14 GND GND GND
15 P0.1 P0.1 J2_15
16 P1.2 P3.4 J2_16
17 P1.0 P0.7 J2_17
18 P1.1 P3.5 J2_18
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 24
Hardware
3.6 Power Supply Configurations
By default, the CAN and LIN shield board is powered from the Baseboard (CY8CKIT-042/044) by
shorting pins 1 and 2 of the 4-pin (1x4) connector (J20). This supplies 5 V to the shield board. Note
that this will only allow CAN2 to be used since CAN1, LIN1 and LIN2 require a 12 V supply.
J3
1 P2.6 P0.2 D8
2 P3.6 P0.3 D9
3 P3.4 P2.7 D10
4 P3.0 P6.0 D11
5 P3.1 P6.1 D12
6 P0.6 P6.2 D13
7 GND GND GND
8 P1.7 (AREF) P1.7 (AREF) AREF
9 P4.1 (SDA) P4.1 (SDA) SDA
10 P4.0 (SCL) P4.0 (SCL) SCL
J4
1 P0.4 P3.0 D0
2 P0.5 P3.1 D1
3 P0.7 P1.0 D2
4 P3.7 P1.1 D3
5 P0.0 P1.2 D4
6 P3.5 P1.3 D5
7 P1.0 P5.3 D6
8 P2.7 P5.5 D7
Table 3-7. Arduino Port Pin Connections (continued)
Arduino Connector Pin CY8CKIT-042 CY8CKIT-044 CY8CKIT-026
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 25
Hardware
3.6.1 12 V Supply Input
A power jack (J11) is provided on the kit to give a 12 V/1 A input supply to the board. In addition, a
screw terminal (J12) is provided for a power supply of up to 12 V/1 A for the same. Maximum input
supply limit is 20 V/1 A, exceeding it may damage the board.
Figure 3-9. Power Jack Schematic
The Shield Kit has a pin on each CAN and LIN header (J17, J8, J14, and J5) that can be connected
to the VIN power supply of the kit. Using this option, you can power the Shield Kit with 12 V from any
one of the CAN/LIN connections. Another reason to provide this option is to power other CAN and
LIN shield boards (connected through CAN/LIN connectors) using this 12 V supply pin. With this,
you can avoid using multiple power adapters to supply different boards.
The J13 jumper is used to connect the VIN supply from/to the CAN1 connector pin (J17 pin9). The
J21 jumper is used to connect the VIN supply from/to the CAN2 connector pin (J8 pin9). The J16
jumper is used to connect the VIN supply from/to the LIN1 connector pin (J14 pin3). The J7 jumper is
used to connect the VIN supply from/to the LIN2 connector pin (J5 pin3).
Both the LIN circuits (transceivers) work only with 12 V input. The CAN1 circuit/transceiver requires
12 V for VBAT and 5 V for VCC. CAN2 circuit/transceiver works when it is powered with 5 V.
Warning: The supply should only be given to any one connector. While supplying the power
through screw terminals, ensure that the polarities are proper as specified on the kit. It is
recommended to use short circuit protected power supply cables.
Warning: Ensure extra care when providing the 12 V supply input to any of the J5, J8, J11, J12,
J14 or J17 connectors. The supply should only be given to any one connector at a time.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 26
Hardware
3.6.2 Power LED
The Shield Kit has a power LED to indicate the 12 V input power supply.
Figure 3-10. Power LED Schematic
3.6.3 12 V-5 V DC-DC Conversion
3.6.3.1 Regulator
A regulator (U2) is provided on the CAN and LIN shield board for 12 V to 5 V dc-dc conversion. The
regulated 5 V is supplied to CAN transceivers, status LEDs and the baseboard (based on the J20
jumper selection). Figure 3-11 shows the 12 V-5 V regulator schematic.
Figure 3-11. 12 V-5 V Regulator Schematic
Warning: The regulator can support up to 1 A current, connecting this to any circuit which draws
more than 1 A current will damage the regulator. Do not provide any power through the test points.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 27
Hardware
3.6.3.2 Cypress PMIC
An optional 12 V-5 V circuit is provided on the kit using a Cypress PMIC which is not populated.
Figure 3-12 shows the Cypress PMIC schematic.
Figure 3-12. Cypress PMIC Schematic
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 28
Hardware
3.6.4 Power Selection Jumper (J20)
The power selection jumper is provided on this CAN and LIN Shield Kit to select different power
supplies to power the shield board and the baseboard (CY8CKIT-042/044 or other Arduino
compatible kits).
Figure 3-13. Jumper (J20) Schematic
The Shield Kit contains the following powering options:
1. Powering Shield Kit from the baseboard
To power the Shield Kit from the baseboard supply, short pin1 and pin2 of the J20 connector.
This will provide 5 V to the shield and hence only CAN (CAN2 transceiver) communication is
possible in this case. In order to supply 5 V to the Shield Kit, the baseboard has to be powered
through 5 V USB and the power selection jumper on baseboard (J9 on CY8CKIT-042 and
CY8CKIT-044) must be set at 5 V.
2. Powering baseboard from the Shield Kit
Following are the two options to power the baseboard from the Shield Kit supply:
a. Short pin 2 and 3 of the J20 connector to power the baseboard with 5 V from the shield kit
regulator. This is supplied to the baseboard via Arduino header J1 pin 1.
b. Short pin 3 and 4 of the J20 connector to power the baseboard with 12 V via J1 pin 1. In this
case, the regulator on the baseboard will convert 12 V to the appropriate voltage for the kit
i.e., 3.3 V.
In both the above cases (options a and b), the baseboard power selection jumper (J9 on
CY8CKIT-042 and CY8CKIT-044) should be at 3.3 V (only when USB is not connected to the
baseboard).
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 29
Hardware
Table 3-8. Powering Options with Jumper (J20)
J20 Connection Power Option Expected Function Baseboard Requirement
Short pin 1 and 2 Power Shield Kit using the
baseboard with 5 V
Only CAN (CAN2 transceiver
circuit) communication is
possible
Baseboard power selection
jumper (J9 on CY8CKIT-042/
044) must be at 5 V.
Short pin 2 and 3 Power baseboard using
Shield Kit with 5 V CAN and LIN
communications are possible
Baseboard power selection
jumper (J9 on CY8CKIT-042/
044) should be at 3.3 V (only
if USB is not connected to
the baseboard).
Short pin 3 and 4 Power baseboard using
Shield Kit with 12 V CAN and LIN
communications are possible
Baseboard power selection
jumper (J9 on CY8CKIT-042/
044) should be at 3.3 V (only
if USB is not connected to
the baseboard).
Caution: Ensure extra care when providing the supply to the baseboard from the Shield Kit.
These jumpers should only be shorted (pin 2 and 3, or pin 3 and 4 of J20 connector) when there is
no input supply given on the VIN pin of the baseboard.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 30
4. Kit Operation
This chapter explains how to set-up the hardware connections in order to establish CAN and LIN
communication using CY8CKIT-026.
4.1 Default Jumper Settings on CY8CKIT-026
Table 4-1 shows the default jumper settings of the CY8CKIT-026 CAN and LIN Shield Kit.
4.2 CAN Communication Hardware Setup
1. Connect the CAN and LIN Shield Kit to the Arduino header of a CY8CKIT-044 Pioneer Kit, as
shown in Figure 1-2.
2. Connect a second CAN and LIN Shield Kit to the Arduino header of a second CY8CKIT-044
Pioneer Kit, as shown in Figure 1-2.
3. On both the CAN and LIN Shield Kits, connect the CAN TX and RX pins of the controller (Comes
from the baseboard via the Arduino header) to CANx_TX and CANx_RX pins (on J19 connector
for CAN1 transceiver, J9 connector of CAN2 transceiver) of the CAN transceiver circuit using
connecting wires. See CAN Signal Connector for CAN1 Transceiver on page 19 and CAN Signal
Connector for CAN2 Transceiver on page 19 for details of CAN TX and RX pin connections. See
the Example Projects on page 37 for the specific pin connections used in the example projects.
Note: PSoC 4M supports two CAN modules. The supported CAN pins are:
a. P0[0] and P0[1] or P4[5] and P4[6] act as CAN_Rx and CAN_Tx for CAN1 module
b. P4[0] and P4[1] or P6[1] and P6[2] act as CAN_Rx and CAN_Tx for CAN2 module
4. Connect the two CAN and LIN Shield Kits together with a male-to-male, 9-pin, RS-232 cable with
“straight-through” connections. Connect the DB9 cable to the corresponding CAN transceiver
circuit DB9 connector (J17 for CAN1 transceiver and J8 for CAN2 transceiver) on both the shield
kits.
Table 4-1. Default Settings of the CY8CKIT-026 CAN and LIN Shield Kit
Jumper Default Condition Function
J7 Populated Provides 12 V power from LIN2 connector
J10 Populated Enables CAN2 termination resistor
J13 Not populated Provides 12 V power from CAN1 connector
J16 Populated Provides 12 V power from LIN1 connector
J20 Populated between pin 1 and 2 Provides Power selection options
J21 Not populated Provides 12 V power from CAN2 connector
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 31
Kit Operation
Figure 4-1 shows connecting two CAN and LIN Shield kits through a DB9 cable. In this figure, the kit
on the left is using CAN1 while the kit on the right is using CAN2. The other transceivers may also be
used by changing the jumper wire connections and DB9 connector used.
Table 4-2 shows the connection details for CAN1 and CAN2 transceivers.
Figure 4-1. Connected CAN and LIN Shield Boards
Note: If CAN1 is used on one kit and CAN2 is used on another kit, J10 should be removed on the
kit which uses CAN2.
5. Power up both the Shield Kits using any one of the supply options as explained in 3.6.4 Power
Selection Jumper (J20). In Figure 4-1, both the Shield Kits are powered up with different 12 V
supplies.
Table 4-2. Ardunio Header Connection to CAN Transceivers
Arduino Pin CAN1 Transceiver CAN2 Transceiver
J2_13 J19_2 (CAN1_RX) J9_3(CAN2_RX)
J2_15 J19_1 (CAN1_TX) J9_2 (CAN2_TX)
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 32
Kit Operation
4.3 Using CAN Bus Analyzer Tool
This kit functions most effectively when two CY8CKIT-44 PSoC 4M Pioneer Kits and two
CY8CKIT-026 Shield Kits are available. However, it is also possible to replace one CY8CKIT-044
Pioneer Kit and one CY8CKIT-026 Shield Kit with a CAN bus analyzer or emulator tool. It is even
possible to use any other CAN node to communicate with this kit.
Figure 4-2 and Figure 4-3 show connecting a CAN Bus analyzer to the Shield Kit.
Figure 4-2. CAN Analyzer Connection to CY8CKIT-026’s CAN1 Transceiver
EMPRESS
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 33
Kit Operation
Figure 4-3. CAN Analyzer Connection to CY8CKIT-026’s CAN2 Transceiver
If you use a CAN bus analyzer or emulator tool to communicate with this kit, then the tool must be
set up to send and receive CAN messages (at proper intervals) with proper length and message ID
and at a proper baud rate.
If you use any other CAN node to communicate with this kit, then you may need to modify the
firmware to allow communication. You can modify the code examples, firmware, or settings of the
other CAN node. See the Example Projects chapter on page 37 for more details on the CAN
controller hardware configurations of this kit’s code examples.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 34
Kit Operation
4.4 LIN Communication Hardware Setup
1. Connect the CAN and LIN Shield Kit to the Arduino header of the CY8CKIT-044/042 Pioneer Kit,
as shown in Figure 1-2.
2. Connect the LIN TX, LIN RX pins and Enable/sleep control pin (GPIO) of the controller (comes
from the baseboard via the Arduino header) to LINx_TX, LINx_RX and LINx_NSLP pins (on J15
connector for LIN1 transceiver, J6 connector of LIN2 transceiver) of the LIN transceiver circuit
using connecting wires.
Table 4-3 shows how to connect the Arduino pins to the LINx transceiver using wires.
These connection are only if you are using P4.0 and P4.1 as LIN pins on the microcontroller. If
you are using different pins for LIN, the corresponding pin connections on the Arduino header
must be changed.
3. Connect VBAT, LIN bus, and GND of the LIN analyzer/LIN master to either J14 connector for
LIN1 transceiver circuit or J5 connector for LIN2 transceiver circuit of Shield Kit, as shown in
Figure 4-4. See LIN Bus Connectors on page 20 for details of LIN bus connectors.
Figure 4-4. Connect to LIN Bus Connector
4. Connect a 12 V power supply input to the Shield Kit using any of the supply option described in
12 V Supply Input on page 25, and power the baseboard by populating the power selection
jumper explained in Power Selection Jumper (J20) on page 28.
Table 4-3. Ardunio Header Connection to LIN Transceivers
Arduino Pin LIN1 Transceiver LIN2 Transceiver
J3_10 (SCL) J15_1 (LIN1_RX) J6_1 (LIN2_RX)
J3_9 (SDA) J15_2 (LIN1_TX) J6_2 (LIN2_TX)
J2_13 J15_3 (LIN1_NSLP) J6_3 (LIN2_NSLP)
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 35
Kit Operation
4.5 Using LIN Bus Analyzer Tool
The LIN code example projects demonstrate functionality of the LIN slave device, so a LIN master
device must be used. A LIN bus analyzer or emulator tool can be used as the LIN master device. It is
also possible to use any other LIN master node to communicate with this example project. If you use
a LIN bus analyzer or emulator tool, then the tool must be set up to send and receive frames with
proper length and ID and at a proper baud rate. See the Example Projects chapter on page 37 for
the specific pin connections used in the LIN example projects.
Figure 4-5 and Figure 4-6 show connecting a LIN Bus analyzer to the Shield Kit.
Figure 4-5. LIN Analyzer Connection to CY8CKIT-026’s LIN1 Transceiver
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 36
Kit Operation
Figure 4-6. LIN Analyzer Connection to CY8CKIT-026’s LIN2 Transceiver
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 37
5. Example Projects
The CY8CKIT-026 CAN and LIN Shield Kit includes five example projects. This chapter explains
how to use these example projects. To access the example projects, download and install the
CY8CKIT-026 CAN and LIN Shield Kit setup file from www.cypress.com/CY8CKIT-026. After
installation, the kit example projects will be available in the Firmware folder in the installation
location.
5.1 Using the Kit Example Projects
Perform these steps to open and use the example projects:
1. Launch PSoC Creator from Start > All Programs > Cypress > PSoC Creator <version> >
PSoC Creator <version>.
2. On the Start page, expand CY8CKIT-026 CAN and LIN Shield Kit under Examples and Kits >
Kits. A list of example projects appears, as shown in Figure 5-1.
3. Click on the desired example project, select a location to save the project and click OK.
Figure 5-1. Open Example Project from PSoC Creator
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 38
Example Projects
4. Build the example project by choosing Build > Build <Project Name>. A .hex file is generated
after successful build process.
5. Connect the corresponding baseboard to the PC using the USB cable to program the kit with this
example project.
6. Choose Debug > Program in PSoC Creator.
5.2 CAN_Simplex_Tx_CY8CKIT-044
5.2.1 Project Description
This project explains how to transmit data over the CAN bus. The device is configured as a CAN
transmitter which transmits the data whenever the CapSense gesture pad is touched. When the
CapSense gesture pad center button is pressed, then the blue LED on the baseboard (CY8CKIT-
044) toggles (ON/OFF) and the CAN data byte1 also toggles between 0 and 1. If the left/right
buttons of the gesture pad are pressed, then the CAN data byte2 toggles between 0, 1 and 2. If the
up/down gesture pad is pressed, then the byte3 of the CAN data increases/decreases by 30 counts
respectively.
5.2.2 Hardware Connections
1. Plug-in the CY8CKIT-026 kit to the CY8CKIT-044 through Arduino connector.
2. Since there are two CAN transceivers on the CY8CKIT-026, choose to use one of the CAN
transceivers (U6 - CAN1 and U4 - CAN2). Connect J2_13 and J2_15 to the appropriate
CANx_Rx and CANx_Tx pins of the transceiver connector (J19 - CAN1 or J9 - CAN2), as
provided in Table 5-1.
3. CAN2 transceiver works with 5 V, whereas CAN1 transceiver requires 12 V input supply.
4. If you have chosen CAN1 transceiver, then external 12 V supply has to be connected through
J11, J12, or J17. Refer to Power Supply Configurations on page 24 for more details on power
supply connections.
5. If you have chosen CAN2 transceiver, you can use external 12 V supply which will be converted
to 5 V with the on board regulator, or you can power the CAN2 transceiver with the baseboard
(CY8CKIT-044) by shorting pin 1 and 2 of the power selection jumper (J20).
6. When you are powering the CY8CKIT-026 with the baseboard with 5 V, ensure that the jumper J9
on the baseboard (CY8CKIT-044) is in the 5 V position. When you are using 12 V external supply
and powering the baseboard from the Shield Kit (without a USB connection), ensure that the
jumper J9 on the baseboard (CY8CKIT-044) is in the 3.3 V position. Refer to Power Selection
Jumper (J20) on page 28 for more details.
7. Connect the CAN analyzer to the appropriate transceiver using a DB9 male to female connector
as shown in Figure 4-2 or Figure 4-3 for receiving the transmitted data.
8. You can also use another CY8CKIT-044 and CY8CKIT-026 setup instead of a CAN analyzer as
shown in Figure 4-1, which should be programmed with the CAN_Simplex_Rx_CY8CKIT-044
project (see CAN_Simplex_Rx_CY8CKIT-044 on page 41) to receive this transmitted data.
Table 5-1. Pin Connection on CY8CKIT-026
Arduino Header Pins CAN1 Transceiver CAN2 Transceiver
J2_13 J19_2 (CAN1_RX) J9_3 (CAN2_RX)
J2_15 J19_1 (CAN1_TX) J9_2 (CAN2_TX)
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 39
Example Projects
5.2.3 Verify Output
To verify the CAN_Simplex_Tx_CY8CKIT-044 example project, perform these steps:
1. Program the CY8CKIT-044 PSoC 4 M-Series Pioneer Kit with CAN_Simplex_Tx_CY8CKIT-044
code example through USB connector J6.
2. Ensure that the power supply and jumper settings are proper, as explained in the Hardware
Connections on page 38.
3. Perform these steps if you are using any CAN analyzer for receiving the data:
a. Install the appropriate software of the CAN analyzer.
b. Open the CAN analyzer software and set the Baud rate to 125 Kbps.
c. Touch the CapSense gesture pad buttons (Center/Right/Left/Up/Down) and observe the data
on CAN analyzer software, as provided in Table 5-2.
d. The Sys Tec CAN analyzer is used as an example for this project. Data can be observed, as
shown in Figure 5-2.
Figure 5-2. CAN Data received on CAN Analyzer Software as Receiver
Table 5-2. CapSense Gesture Pad Data to CAN Analyzer
CapSense Gesture Pad Button Data on CAN Analyzer
Center Button Byte1 toggles b/w 0 and 1 (1 ON, 0 OFF)
Right Button1
1. Pressing these buttons transmits the CAN data only when the Byte1 is ‘1’ (i.e., center button is ON). If Byte1 is '0' (i.e., center button is
OFF), pressing these buttons does not have any effect.
Byte2 changes as 0 1 2 0…
Left Button1Byte2 changes as 2 1 0 2…
Up Button1Byte3 increases by 30 counts
Down Button1Byte3 decreases by 30 counts
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 40
Example Projects
4. Perform these steps, if you are using another set of CY8CKIT-044 and CY8CKIT-026 for
receiving the data:
a. Program the second baseboard with the CAN_Simplex_Rx_CY8CKIT-044.hex file and set the
hardware connections provided in Hardware Connections on page 41.
b. Connect both the Shield Kits with a DB9 male-to-male connector, as shown in Figure 4-1 and
switch ON the power supply for both the kits.
c. Touch the CapSense gesture pad buttons on the first baseboard (that is programmed with
CAN_Simplex_Tx_CY8CKIT-044 project). Observe the Color and Brightness of the RGB LED
on the second board, as provided in Table 5-3.
5. To observe the data that is transmitted through CAN bus using UART, connect the baseboard to
a PC using a USB cable, and then perform these steps:
a. Open any serial terminal software (Tera Term software is shown here as an example).
b. After selecting appropriate COM port (For example COM37 in Figure 5-3), set the Baud rate
to 115200, Parity = none, Stop bit = 1, as shown in Figure 5-3.
Figure 5-3. Serial Terminal Settings
Table 5-3. Controls the RGB LED on Second Board using CapSense Gesture Pad
CapSense Gesture Pad Button RGB LED on Second Kit (CY8CKIT-044)
Center Button RGB LED ON
Right Button LED switches the color as R G B R…
Left Button LED switches the color as B G R B…
Up Button LED brightness increases
Down Button LED brightness decreases
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 41
Example Projects
c. While pressing the CapSense gesture pad buttons, observe the data on the UART serial
terminal software, as shown in Figure 5-4.
Figure 5-4. Transmitter UART Data on Serial Terminal
Note: For more details on the project, i.e., how to configure the CAN component, CapSense
component, IMO trimming, pin configurations, and so on, refer to Code Example CE97311.
5.3 CAN_Simplex_Rx_CY8CKIT-044
5.3.1 Project Description
This project receives data sent from the CAN bus with pre-defined frame ID as 0x01. The first 3-
bytes of the received data will control the RGB LED status, color and brightness. If the first byte is '0',
the RGB LED will be OFF and when it is '1', the RGB LED switches ON. The second data byte has
values as 0, 1 or 2, then the red, green or blue LED turns ON correspondingly. The 3rd data byte
value controls the RGB LED brightness.
5.3.2 Hardware Connections
1. Plug-in the CY8CKIT-026 kit to the CY8CKIT-044 through Arduino connector.
2. Since there are two CAN transceivers on the CY8CKIT-026, choose one of the CAN transceivers
(U6 - CAN1 and U4 - CAN2). Connect J2_13 and J2_15 to the appropriate CANx_Rx and
CANx_Tx pins of the transceiver connector (J19 - CAN1 or J9 - CAN2), as provided in Table 5-4.
3. CAN2 transceiver works with 5 V and CAN1 transceiver requires 12 V input supply.
4. If you have chosen CAN1 transceiver, then external 12 V supply has to be connected through
J11, J12, or J17. Refer to the Power Supply Configurations on page 24 for more details on power
supply connections.
5. If you have chosen the CAN2 transceiver, you can use external 12 V supply which will be con-
verted to 5 V with the on board regulator, or you can power the CAN2 transceiver with the base-
board (CY8CKIT-044) by shorting pin 1 and 2 of the power selection jumper (J20).
6. When you are powering the CY8CKIT-026 from the baseboard with 5 V, ensure that the jumper
J9 on the baseboard (CY8CKIT-044) is set to the 5 V position. When you are using 12 V external
supply and powering the baseboard from the Shield Kit (without a USB connection), ensure that
the jumper J9 on the baseboard (CY8CKIT-044) is set to the 3.3 V selection. Refer to Power
Selection Jumper (J20) on page 28 for more details.
Table 5-4. Pin Connection on CY8CKIT-026
Arduino Header Pins CAN1 Transceiver CAN2 Transceiver
J2_13 J19_2 (CAN1_RX) J9_3 (CAN2_RX)
J2_15 J19_1 (CAN1_TX) J9_2 (CAN2_TX)
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 42
Example Projects
7. Connect the CAN analyzer to the appropriate transceiver using a DB9 male to female connector,
as shown in Figure 4-2 or Figure 4-3 for receiving the transmitted data.
8. You can also use another CY8CKIT-044 and CY8CKIT-026 setup instead of a CAN analyzer, as
shown in Figure 4-1, which should be programmed with the CAN_Simplex_Tx_CY8CKIT-044
project (described above) to transmit data over CAN.
5.3.3 Verify Output
To verify the CAN_Simplex_Rx_CY8CKIT-044 code example, perform these steps:
1. Program the CY8CKIT-044 PSoC 4 M-Series Pioneer Kit with CAN_Simplex_Rx_CY8CKIT-044
code example through USB connector J6.
2. Make sure that the power supply and jumper settings are proper as explained in the Hardware
Connections on page 41.
3. Perform these steps if you are using any CAN analyzer for receiving the data:
a. Install the appropriate software of the CAN analyzer.
b. Open the CAN analyzer software and set the Baud rate to 125 Kbps.
c. Add a new transmit frame as, Frame ID = 0x01, Data Length Code (DLC) 3, and add data
bytes values as provided in Table 5-5.
Table 5-5. RGB LED Status with respect to CAN Data Bytes
Data Bytes RGB LED Status on CY8CKIT-044
Byte Number Value
Byte ‘1’ 0 LED OFF
1 LED ON
Byte ‘2’
01
1. Transmitting these values changes the RGB LED color and brightness only when the first data byte is equal to '1'. If the Byte1 is '0',
sending these values doesn't have any effect on the RGB LED status & brightness
Red LED ON
11Green LED ON
21Blue LED ON
Byte ‘3’ 0 to 2551Controls the brightness of the LED
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 43
Example Projects
d. The Sys Tec CAN analyzer is used for this example project. To add the transmit message, go
to Transmit > New. A New Transmit message window will appear. Enter the message
details, as shown in Figure 5-5.
Figure 5-5. Sys Tech CAN Analyzer Frame ID Settings
e. Double-click on frame ID in the Transmit window. This will transmit the CAN frame through the
bus.
f Once the message is transmitted, then the count value on the analyzer software increases by
'1'. Else, the frame is not transmitted. Check the hardware connections and retransmit the
message.
g. Once the frame is transmitted, observe the RGB LED status on the baseboard as explained in
Table 5-5. Additional transmit messages may be added to change the LED state, color, or
brightness.
h. If an error is displayed on the CAN analyzer software after transmitting the frame, reset the
Kit-044 once and try transmitting the frame.
4. Perform these steps if you are using another set of CY8CKIT-044 and CY8CKIT-026 for receiving
the data:
a. Program the second baseboard with the CAN_Simplex_Tx_CY8CKIT-044.hex file and make
the hardware connections as shown in Hardware Connections on page 38.
b. Connect both the Shield Kits with a DB9 male-to-male connector as shown in Figure 4-1 and
switch ON the power supply for both the kits.
c. Touch the CapSense gesture pad buttons on the second baseboard (that is programmed with
CAN_Simplex_Tx_CY8CKIT-044 project). Observe the Color and Brightness of the RGB LED
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 44
Example Projects
on the second board, as provided in Table 5-6.
5. To observe the data received through CAN bus using UART, connect the baseboard to the PC
through USB cable and perform these steps:
a. Open any serial terminal software (Tera Term software is used an example here).
b. After selecting appropriate COM port (For example COM37 in Figure 5-3), set the Baud rate
to 115200, Parity = none, Stop bit = 1, as shown in Figure 5-3.
c. Whenever you receive data over CAN bus, you can observe the data on UART serial terminal
software, as shown in Figure 5-6.
Figure 5-6. Receiver UART Data on Serial Terminal
Note: For more details on the project that is used to configure the CAN component, CapSense
component, IMO trimming, pin configurations, and so on refer to Code Example CE97311.
Table 5-6. RGB LED Status Based on CapSense Gesture Pad
CapSense Gesture Pad Button RGB LED on First Kit (CY8CKIT-044)
Center Button RGB LED ON
Right Button LED switches the color as R G B R…
Left Button LED switches the color as B G R B…
Up Button LED brightness increases
Down Button LED brightness decreases
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 45
Example Projects
5.4 LIN_Slave_CY8CKIT-042
5.4.1 Project Description
In this example, PSoC 4200 (CY8CKIT-042) acts as a simple LIN slave. The slave monitors data
that is transmitted from the LIN master (analyzer). If a predefined frame is received from the master,
the slave controls the RGB LED color according to the data available in the received frame. The LIN
master can get the RGB LED status by sending a frame with a predefined frame ID.
5.4.2 Hardware Connections
1. Plug-in the CY8CKIT-026 kit to the CY8CKIT-042 using the Arduino connectors.
2. Since there are two LIN transceivers on the CY8CKIT-026, choose either of the transceivers to
use (U5 - LIN1 transceiver or U3 - LIN2 transceiver). Connect the Arduino header pins (which are
connected to the baseboard controller) to the appropriate LIN transceiver using jumper wires, as
provided in Table 5-7.
3. Connect the LIN analyzer to the J14 connector to use LIN1 transceiver or J5 connector to use
LIN2 transceiver
4. If the LIN analyzer DOES provide 12 V supply through the VBAT pin then you can power the
board with that supply without using any additional 12 V supply since the corresponding jumper
(J16 for LIN1 & J7 for LIN2) are populated by default.
5. You need to connect a 12 V supply input to the board through J11 power jack or J12 screw termi-
nal connector, if the analyzer DOES NOT provides 12 V supply.
6. The baseboard (CY8CKIT-042) can be powered using USB or it can be powered from the Shield
kit by selecting jumper J20 appropriately. Refer to the Power Selection Jumper (J20) on page 28
for more details on power connection options.
Table 5-7. Pin Connection on CY8CKIT-026
Arduino Header Pins LIN1 Transceiver LIN2 Transceiver
J3_10 (SCL) J15_1 (LIN1_RX) J6_1 (LIN2_RX)
J3_9 (SDA) J15_2 (LIN1_TX) J6_2 (LIN2_TX)
J2_13 J15_3 (LIN1_NSLP) J6_3 (LIN2_NSLP)
Caution: Ensure extra care when the LIN analyzer provides 12 V through the VBAT pin and con-
necting it to any of the connectors J14 and J5 and also using a 12 V external supply. Since the
jumpers J16 and J7 are populated (by default); it will short the VIN supply rail to the VBAT pin of
the LIN connector. In that case, either remove the external 12 V supply or remove the correspond-
ing jumper (J16 or J7). Otherwise, the Shield Kit, Baseboard and supply adapter could be dam-
aged.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 46
Example Projects
5.4.3 Verify Output
To verify the LIN_Slave_CY8CKIT-042 code example, perform these steps.
Silicon Engines LIN/USB Data Converter is used as LIN analyzer in this example.
1. Program the CY8CKIT-042 PSoC 4 Pioneer Kit with LIN_Slave_CY8CKIT-042 example project
through USB connector J10.
2. Ensure that the power supply and jumper settings are as explained in 5.4.2 Hardware
Connections.
3. Install the 'SE9004 and 9011 LINUSB Message Center software (provided by Silicon Engines) on
your PC and connect the LIN analyzer to PC through USB cable. If a different analyzer is being
used, install the appropriate software.
4. Open the LIN analyzer software and go to Configure LIN/USB. Configure LIN Box Interface
window is displayed. Set the LIN Bus Baud Rate to 19200 bps, and then select the LIN 2.0-2.1
Protocol checkbox, as shown in Figure 5-7.
Figure 5-7. LIN Analyzer Configurations
5. If you are using any other analyzer, make sure that the checksum setting is selected as
enhanced checksum since LIN v2.1/2.2 specification supports only enhanced checksum (this
option is not required in Silicon Engines LIN-USB converter software).
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 47
Example Projects
6. Add the message in the analyzer software which needs to be transmitted to the slave and send it
through the analyzer, as shown in Figure 5-8. Note that the message must start with the ID.
Figure 5-8. Adding and Sending Message using LIN Analyzer
7. If a frame with ID = 0x10 is received from the master (analyzer), then the slave controls the RGB
LED based on the received data command from master, as provided in Table 5-8. Note that the
message must start with the ID and must contain eight data bytes even though only the first byte
is used to control the LED. The other seven data bytes can be any value.
Table 5-8. Slave Response as per the Commands from Master
Command Slave Response
0x11 Turns ON Red LED
0x22 Turns ON Green LED
0x33 Turns ON Blue LED
0x00 Turns OFF RGB LED
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Example Projects
8. If a frame with ID = 0x11 is received from the LIN Analyzer, then the slave will send the RGB LED
status back to the master, as provided in Table 5-9. The message in this case only needs the
message ID. No data bytes are required.
9. The result of transmitted and received data at the LIN analyzer end is shown in Figure 5-9.
Figure 5-9. Results at LIN Analyzer
In this figure, InFrame refers to “10 22 FF FF FF FF FF FF FF” where 10 is the frame ID and 22, FF,
FF, FF, FF, FF, FF, FF are the eight data bytes. Since, the 'InFrame' in LIN slave is configured with
only 2 bytes named as InSig and InArraySig, the rest of the data bytes (3 to 8) are ignored by the
slave. When the 'OutFrame' is received from the analyzer as marked in this figure, the slave
responds to the frame with the RGB LED status along with frame ID as 11 22 BB where '11' is frame
ID, '22' is the previous 'InFrame' data byte (command) and 'BB' is the RGB LED status (i.e., Green
LED is ON).
Note: For more details on how to configure the LIN component, pin configurations, and so on refer to
Code Example CE96999.
Note: If there is an error message such as “BUS STUCK HIGH” or “TX FRAME ERROR”, reset the
baseboard (CY8CKIT-042/44) and LIN analyzer.
Table 5-9. RGB LED Status
RGB LED Status Data Byte
Red LED ON 0xAA
Green LED ON 0xBB
Blue LED ON 0xCC
RGB LED OFF 0xDD
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 49
Example Projects
5.5 LIN_Slave_CY8CKIT-044
5.5.1 Project Description
In this example, PSoC 4200 M (CY8CKIT-044) acts as a simple LIN slave. The slave monitors data
that is transmitted from the LIN master (analyzer). If a predefined frame is received from the master,
the slave controls the RGB LED color according to the data available in the received frame. The LIN
master can get the RGB LED status by sending a frame with a predefined frame ID.
The example project LIN_Slave_CY8CKIT-044 is same as LIN_Slave_CY8CKIT-042 except the
baseboard that is CY8CKIT-044 is used instead of CY8CKIT-042.
Follow the same steps for Hardware connections and verifying the output as specified in 5.4
LIN_Slave_CY8CKIT-042 and replace the baseboard from CY8CKIT-042 to CY8CKIT-044.
Note: For more details on how to configure the LIN component, pin configurations, and so on refer to
Code Example CE96999.
5.6 Multiple_LIN_Slave_CY8CKIT-042
5.6.1 Project Description
In this example, PSoC 4 is initialized as two LIN slave nodes; each node is connected to a different
LIN master. If a predefined frame is received from the LIN master1, the slave either stores or sends
the CapSense linear slider centroid position to the master. If a predefined frame is received from the
LIN master2, the slave either controls/changes the RGB LED or sends the RGB LED status to the
master. LIN1 is configured as a v2.0/2.1 slave while LIN2 is configured as a v1.3 slave.
5.6.2 Hardware Connections
1. Plug-in the CY8CKIT-026 kit to the CY8CKIT-042 using the Arduino connectors.
2. Connect the Arduino header pins (which are connected to the baseboard controller) to the
appropriate LIN transceiver through jumper wires, as provided in Table 5-10.
3. Connect the LIN1 analyzer to the J14 connector and LIN2 analyzer to J5 connector on the
CY8CKIT-026 Kit. Since there are two LIN slaves in this project, you need to have two LIN
analyzers - each should connect to one LIN slave.
4. If either of the LIN analyzer DOES provide 12 V supply through VBAT pin then you can power the
board with that supply without using any additional 12 V supply since the corresponding jumper
(J16 for LIN1 and J7 for LIN2) are populated by default. Be careful to not power-up the shield kit
with multiple supplies.
Table 5-10. Pin Connection on CY8CKIT-026
Arduino Header Pins LIN1 & LIN2 Connector Pins
J3_10 J15_1 (LIN1_RX)
J3_9 J15_2 (LIN1_TX)
J2_13 J15_3 (LIN1_NSLP)
D0 J6_1 (LIN2_RX)
D1 J6_2 (LIN2_TX)
J2_15 J6_3 (LIN2_NSLP)
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 50
Example Projects
5. You need to connect a 12 V supply input to the board through J11 power jack or J12 screw
terminal connector, if both the analyzers DO NOT provide 12 V supply.
7. The baseboard (CY8CKIT-042) can be powered using USB or it can be powered from the Shield
kit by selecting jumper J20 appropriately. Refer to the Power Selection Jumper (J20) on page 28
for more details on power connection options.
5.6.3 Verify Output
To verify the Multiple_LIN_Slave_CY8CKIT-042 example project, perform these steps:
In this example, the PSoC 4200 device is configured as two LIN slaves where each slave is
connected to a different LIN network. You need two LIN analyzers to verify the output. Two Silicon
Engines LIN/USB Data Converter's are used as LIN analyzers in this example.
1. Program the CY8CKIT-042 PSoC 4 Pioneer Kit with Multiple_LIN_Slave_CY8CKIT-042 example
project through USB connector J10.
2. Make sure that the power supply and jumper settings are proper as explained in the Hardware
Connections on page 49.
3. Install the 'SE9004 and 9011 LINUSB Message Center' software (if a different analyzer is being
used, install the appropriate software) on your PC and connect the LIN analyzer to PC through
USB cable.
4. Verifying the LIN slave1 output:
a. Open the LIN1 analyzer software and go to Configure LIN/USB, set the LIN Bus Baud Rate
to 19200 bps, and then select the LIN 2.0-2.1 Protocol checkbox as shown in Figure 5-7.
b. If you are using any other analyzer, make sure that the checksum setting is selected as
enhanced checksum since LIN v2.1/2.2 specification supports only enhanced checksum (this
option is not required in Silicon Engines LIN-USB converter software).
c. Add the message/frame in the analyzer software which needs to be transmitted to the slave
and send it through the analyzer shown in Figure 5-8.
d. Place your finger on the CapSesne linear slider (on the CY8CKIT-042) and send a frame with
ID = 0x10 and 8 data bytes. The first data byte should be 0x22. The other data bytes can be
any value.
e. If a frame with ID = 0x10 with first data byte = 0x22 is received from LIN1 analyzer, then the
slave will store the current CapSense linear slider centroid position.
f. If a frame with ID = 0x11 is received from the LIN1 analyzer, then the slave will send the
stored CapSense linear slider centroid position back to the analyzer.
Caution: Ensure extra care when either of the LIN analyzers provide 12 V through VBAT pin and
connecting it to any of the connectors J14 and J5 and also using 12 V external supply. Since the
jumpers J16 and J7 are populated (by default), it will short the VIN supply rail to the VBAT pin of
the LIN connector. In that case, either remove the external 12 V supply or remove the correspond-
ing jumper (J16 or J7). Otherwise, the Shield Kit, Baseboard and supply adapter could be dam-
aged.
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Example Projects
g. The result of transmitted and received data at the LIN1 analyzer is shown in Figure 5-10.
Figure 5-10. Results at LIN1 analyzer
In the above figure, 'InFrame1' refers to “10 22 FF FF FF FF FF FF FF” where 10 is the frame ID and
22, FF, FF, FF, FF, FF, FF, FF are the eight data bytes. Since the 'InFrame1' in LIN1 slave is
configured with only 2 bytes named as InSig1 and InArraySig1, the rest of the data bytes (3 to 8) are
ignored by the slave. After receiving this command, the slave will store the current CapSense linear
slider centroid position. When the 'OutFrame1' is received from the analyzer as shown in the above
figure, the slave responds to the frame with the previously stored CapSense linear slider centroid
position value along with frame ID as 11 22 3E where '11' is frame ID, '22' is the previous 'InFrame1'
data byte (command) and '3E' is the centroid value.
6. Verifying the LIN slave2 output:
a. Open the LIN2 analyzer software and go to Configure LIN/USB, set the LIN Bus Baud Rate
to 19200 bps, and then deselect the LIN 2.0-2.1 Protocol checkbox as shown in Figure 5-11.
Figure 5-11. LIN2 analyzer Configuration
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Example Projects
b. If you are using any other analyzer, make sure that the checksum setting is selected as clas-
sic checksum since LIN v1.3 specification supports only enhanced checksum (this option is
not required in Silicon Engines LIN-USB converter software).
c. Add the message/frame in the analyzer software which needs to be transmitted to the slave
and send it through the analyzer shown in Figure 5-8.
d. If a frame with ID = 0x12 is received from the LIN2 analyzer, then the slave controls the RGB
LED based on the received data command from master, as provided in Table 5-11. Note that
the frame must contain eight data bytes even though the first data byte is the only one used
by the slave. The other seven data bytes may be set to any value.
d. If a frame with ID = 0x13 is received from the LIN2 analyzer, then the slave will send the RGB
LED status back to the master, as provided in Table 5-12.
e. The result of transmitted and received data at the LIN2 analyzer is shown in Figure 5-12.
Figure 5-12. Results at LIN2 analyzer
Table 5-11. Slave Response as per the Commands from Master
Command Slave Response
0x11 Turns ON Red LED
0x22 Turns ON Green LED
0x33 Turns ON Blue LED
0x00 Turns OFF RGB LED
Table 5-12. RGB LED Status
RGB LED Status Data Byte
Red LED ON 0xAA
Green LED ON 0xBB
Blue LED ON 0xCC
RGB LED OFF 0xDD
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 53
Example Projects
In Figure 5-12, ‘InFrame2’ refers to “12 11 FF FF FF FF FF FF FF” where 12 is the frame ID and 11,
FF, FF, FF, FF, FF, FF, FF are the eight data bytes. Since, the ‘InFrame2’ in LIN slave2 is configured
with only 2 bytes named as InSig2 and InArraySig2, the rest of the data bytes (3 to 8) are ignored by
the slave. When the ‘OutFrame2’ is received from the analyzer as marked in this figure, the slave
responds to the frame with the RGB LED status along with frame ID as 13 11 AA where ‘13’ is frame
ID, ‘11’ is the previous ‘InFrame2’ data byte (command) and ‘AA’ is the RGB LED status (i.e., Red
LED is ON).
Note: For more details on how to configure the LIN component, pin configurations, and so on refer to
Code Example CE96999.
Note: If there is an error message such as “BUS STUCK HIGH” or “TX FRAME ERROR”, reset the
baseboard (CY8CKIT-042) and LIN analyzer.
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 54
A. Appendix
A.1 Schematics
Figure A-1. Power Supply Circuit Schematic
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 55
Figure A-2. CAN1 and CAN2 Transceiver Circuit Schematic
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 56
Figure A-3. LIN1 and LIN2 Transceiver Circuit Schematic
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 57
Figure A-4. Arduino Header and Status LEDs Schematic
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 58
A.2 Gerber Files
Figure A-5. CY8CKIT-026 Primary Side
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 59
Figure A-6. CY8CKIT-026 Secondary Side
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 60
Figure A-7. CY8CKIT-026 Primary Silk Screen
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CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 61
Figure A-8. CY8CKIT-026 Secondary Silk Screen
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 62
A.3 Bill of Materials
Table 5-1. Bill of Materials (BOM)
Item Qty Reference Value Description Manufacturer Mfr Part
Number Sub
Allowed ROHS UL
Certified
1 1 600-60283-01 REV03
PCB, 125.00 mm x
85.00 mm, High Tg,
ENIG finish, 2 layer,
Color = RED,
Silk = WHITE
Cypress Semicon-
ductor 600-60283-01 N/A Yes Yes
25 C11,C16,C19,
C26,C28 0.1 uF CAP CER 0.1 UF
50 V 10% X7R 0603 TDK Corporation
CGA3E2X7R1
H104K080AA ASK Yes Yes
31 C14 0.1 uF CAP CER 0.1 UF
50 V 10% X7R 0402 TDK Corporation CGA2B3X7R1
H104K050BB ASK Yes Yes
4 1 C7 10uF/50V CAP CER 10UF
50 V 20% X7S 1210 TDK Corporation CGA6P3X7S1
H106M250AB ASK Yes Yes
5 1 C8 22uF CAP CER 22UF
16 V 20% X7R 1210 TDK Corporation
CGA6P1X7R1
C226M250AC ASK Yes Yes
6 2 C13,C20 1nF CAP CER 1000PF
50 V 10% X7R 0805 Murata Electronics GCM216R71H
102KA37D ASK Yes Yes
76 C15,C17,C18,
C22,C24,C25 47pF CAP CER 47PF 50 V
5% NP0 0805 Kemet C0805C470J5
GACAUTO ASK Yes Yes
82C21,C23 10nF CAP CER 10000PF
50 V 10% X7R 0603 Murata Electronics GCM188R71H
103KA37D ASK Yes Yes
92D1,D5 PESD1LIN
TVS DIODE
15VWM/24VWM
SOD323
NXP
Semiconductors PESD1LIN,115 ASK Yes Yes
10 2D3,D6 PESD1CAN
TVS DIODE 24VWM
50VC SC-70, SOT-
323
NXP
Semiconductors
PESD1CAN-
UX ASK Yes Yes
11 1D7 SS12‐E3/61T DIODE SCHOTTKY
20 V 1 A DO214AC
Vishay
Semiconductor SS12-E3/61T ASK Yes Yes
12 3D10,D11,D12 MBR0520L
DIODE SCHOTTKY
20 V 500MA
SOD123
Fairchild
Semiconductor MBR0520L ASK Yes Yes
13 2J1,J4 8X1 RECP
(Stackable)
Connector
Receptacle 8
Position 0.100"
(2.54 mm) Gold
Through Hole
Samtec Inc. SSQ-108-03-
G-S ASK Yes Yes
14 1J2 9X2 RECP
(Stackable)
Connector
Receptacle 18
Position 0.100"
(2.54 mm) Gold
Through Hole [9x2]
Samtec Inc. SSQ-109-03-
G-D ASK Yes Yes
15 1J3 10X1 RECP
(Stackable)
Connector
Receptacle 10
Position 0.100"
(2.54 mm) Gold
Through Hole
Samtec Inc. SSQ-110-03-
G-S ASK Yes Yes
16 2J5,J14 22‐23‐2031 CONNHEADER3POS
.100VERTTIN[KEYED] Molex Inc. 22232031 ASK Yes Yes
17 4J6,J9,J15,J19 3x1Recp
ConnectorHeader3
Position0.100"
(2.54 mm)Gold
ThroughHole[Female
Socket]
Sullins Connector
Solutions
PPPC031LFB
N-RC ASK Yes Yes
18 5J7,J10,J13,J1
6,J21 2x1Jumper CONNHEADRBRKWAY
.1002POSSTR
TE Connectivity
AMP Connectors 5-146280-2 ASK Yes Yes
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 63
19 2J8,J17 DB9FEMALE
_CANCONN
D‐SubConnector
Receptacle,Female
Sockets9Position
ThroughHole,Right
AngleSolder
TE Connectivity
AMP Connectors 5747844-4 ASK Yes Yes
20 1J11
12V/1A,
2.1mm,PWR
CONN
CONNJACKPOWER
2.1MMPCB CUI Inc. PJ-102A ASK Yes Yes
21 1J12 12VPOWER
CONN
TERMBLOCK2POS
SIDEENT3.81MM
TE Connectivity
AMP Connectors 1776113-2 ASK Yes Yes
22 1J20 4x1Jumper CONNHEADRBRKWAY
.1004POSSTR
TE Connectivity
AMP Connectors 5-146280-4 ASK Yes Yes
23 2LED1,LED4
STATUSLED
RED,POWER
LEDRED
RESPECTIVELY
LEDSUPERREDCLEAR
0805SMD Lite-On Inc. LTST-
C170KRKT ASK Yes Yes
24 1LED2 STATUSLED
YELLOW
LEDYELLOWCLEAR
0805SMD Lite-On Inc. LTST-
C171KSKT ASK Yes Yes
25 1LED3 STATUSLED
GREEN
LEDGREENCLEAR
0805SMD Lite-On Inc. LTST-
C170KGKT ASK Yes Yes
26 3R4,R13,R14 330Ohm RESSMD330OHM1%
1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF3300V ASK Yes Yes
27 6R5,R11,R12,R
20,R26,R27 47K RESSMD47KOHM1%
1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF4702V ASK Yes Yes
28 15
R6,R8,R9,R15
,R16,R18,R19,
R21,R23,R24,
R29,R33,R34,
R35,R37
ZERO RESSMD0.0OHM
JUMPER1/10W
Panasonic
Electronic
Components
ERJ-
3GEY0R00V ASK Yes Yes
29 2R17,R32 120Ohm RESSMD120OHM1%
1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF1200V ASK Yes Yes
30 1R28 1K RESSMD1KOHM1%
1/8W0805
Panasonic
Electronic
Components
ERJ-
6ENF1001V ASK Yes Yes
31 2R31,R42 10K RESSMD10KOHM1%
1/8W0805
Panasonic
Electronic
Components
ERJ-
6ENF1002V ASK Yes Yes
32 2R38,R41 ZERO RESSMD0.0OHM
JUMPER1/8W0805
Panasonic
Electronic
Components
ERJ-
6GEY0R00V ASK Yes Yes
33 1R39 1.2K
RES SMD
1.2 KOHM 1%
1/10 W 0603
Panasonic
Electronic
Components
ERJ-
3EKF1201V ASK Yes Yes
34 2R30,R36, 120ohm RES SMD 120 OHM
1% 1/8 W 0805
Panasonic
Electronic
Components
ERJ-
6ENF1200V ASK Yes Yes
35 1U2 NCV1117DT50 ICREGLDO5V1A
DPAK ON Semiconductor NCV1117DT50
RKG NO NO NO
36 2U3,U5 TJA1020 ICTRANSCEIVERLIN
8SOIC
NXP
Semiconductors
TJA1020T/
CM,118 NO NO NO
37 1U4 TJA1051T/3 ICCANTRANSEIVERHS
8SOIC
NXP
Semiconductors
TJA1051T/
3,118 NO NO NO
Table 5-1. Bill of Materials (BOM) (continued)
Item Qty Reference Value Description Manufacturer Mfr Part
Number Sub
Allowed ROHS UL
Certified
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 64
38 1U6 TJA1055T ICTXRXCANFAULT‐
TOL14SOIC
NXP
Semiconductors
TJA1055T/3/
C,518 NO NO NO
Jumper Installation Instructions
39 4J7,J10,J16,J2
0
Install jumper
across pins 1
and 2
Rectangular
Connectors MINI
JUMPER GF 6.0 MM
CLOSE TYPE
BLACK
Kobiconn 151-8010-E ASK Yes Yes
Label
40 1 N/A N/A
LBL, PCA Label,
Vendor Code,
Datecode, Serial
Number 121-60251-
01
(YYWWVVXXXXX)
Cypress
Semiconductor ASK Yes Yes
41 1 N/A N/A LBL, QR code,
10 mm X 10 mm
Cypress
Semiconductor ASK Yes Yes
No Load Components
42 1 C1 0.1 uF CAP CER 0.1 UF
50 V 10% X7R 0603 TDK Corporation
CGA3E2X7R1
H104K080AA
ASK Yes Yes
43 3 C2,C5,C10 0.1 uF CAP CER 0.1 UF
50 V 10% X7R 0402 TDK Corporation CGA2B3X7R1
H104K050BB ASK Yes Yes
44 2 C3,C4 10u/50V CAP CER 10 UF
50 V 20% X7S 1210 TDK Corporation CGA6P3X7S1
H106M250AB ASK Yes Yes
45 1 C6 4.7 uF CAP CER 4.7 UF
16 V 10% X7R 0805 TDK Corporation CGA4J3X7R1
C475K125AB ASK Yes Yes
46 2C9,C12 22uF CAP CER 22 UF
16 V 20% X7R 1210 TDK Corporation
CGA6P1X7R1
C226M250AC
ASK Yes Yes
47 1C27 1uF CAP CER 1UF 16 V
10% X7R 0805 TDK Corporation CGA4J2X7R1
C105K125AA ASK Yes Yes
48 2D2,D4 PMLL4148L,
115
DIODE GEN PURP
75 V 200 MA LLDS
NXP
Semiconductors
PMLL4148L,11
5ASK Yes Yes
49 2D8,D9, MBR0520L
DIODE SCHOTTKY
20 V 500MA
SOD123
Fairchild
Semiconductor MBR0520L ASK Yes Yes
50 1J18 2x1Jumper CONNHEADRBRKWAY
.1002POSSTR
TE Connectivity
AMP Connectors 5-146280-2 ASK Yes Yes
51 2 J22,J23 Screwterminal
CONN
TERM BLOCK
2POS SIDE ENT
3.81 MM
TE Connectivity
AMP Connectors 1776113-2 ASK Yes Yes
52 1L1 2.2uH FIXED IND 2.2 UH
4.3 A 14.6 MOHM TDK Corporation CLF7045T-
2R2N-D ASK Yes Yes
53 2 L2,L3 B82789‐C
CHOKE DBL
100 UH 150 MA
GOLD SMD
[Common Mode
Filters / Chokes]
EPCOS / TDK B82789C104N
1ASK Yes Yes
54 1R1 ZERO RES SMD 0.0 OHM
JUMPER 1/10 W
Panasonic
Electronic
Components
ERJ-
3GEY0R00V ASK Yes Yes
55 1R2 100K RESSMD100KOHM
1%1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF1003V ASK Yes Yes
Table 5-1. Bill of Materials (BOM) (continued)
Item Qty Reference Value Description Manufacturer Mfr Part
Number Sub
Allowed ROHS UL
Certified
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 65
56 1R3 22K RESSMD22KOHM1%
1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF2202V ASK Yes Yes
57 1R7 1K RESSMD1KOHM1%
1/8W0805
Panasonic
Electronic
Components
ERJ-
6ENF1001V ASK Yes Yes
58 2 R10,R25, 47K RESSMD47KOHM1%
1/8W0805
Panasonic
Electronic
Components
ERJ-
6ENF4702V ASK Yes Yes
59 1 R22 1K RESSMD1KOHM1%
1/10W0603
Panasonic
Electronic
Components
ERJ-
3EKF1001V ASK Yes Yes
60 1R40 120ohm RES SMD 120 OHM
1% 1/8 W 0805
Panasonic
Electronic
Components
ERJ-
6ENF1200V ASK Yes Yes
61 3 TP1,TP2,TP5, RED TESTPOINT43HOLE
65PLATEDRED
Keystone
Electronics 5000 ASK Yes Yes
62 4 TP3,TP4,TP29,T
P30 BLACK TESTPOINT43HOLE
65PLATEDBLACK
Keystone
Electronics 5001 ASK Yes Yes
63 24
TP6,TP7,TP8,
TP9,TP10,TP11,
TP12,TP13,
,TP14,TP15,
TP16,TP17,TP18
,TP19,TP20,TP2
1,TP22,TP23,TP
24,TP25,TP26,
TP27,TP28,TP31
WHITE
TEST POINT 43
HOLE 65 PLATED
WHITE
Keystone
Electronics 5002 ASK Yes Yes
64 1 U1 S6BP202A
S6BP202Aisasingle
outputBuck‐BoostDC/
DC,TSSOP‐16PIN
Cypress S6BP202A No No No
Table 5-1. Bill of Materials (BOM) (continued)
Item Qty Reference Value Description Manufacturer Mfr Part
Number Sub
Allowed ROHS UL
Certified
@chREss
CY8CKIT-026 CAN and LIN Shield Kit Guide, Doc. No. 002-03798 Rev. *C 66
Revision History
Document Revision History
Document Title: CY8CKIT-026 CAN and LIN Shield Kit Guide
Document Number: 002-03798
Revision ECN# Issue Date Origin of
Change Description of Change
** 5068393 12/29/2015 MVRE Initial version.
*A 5129706 03/02/2016 MVRE
Minor text edits across the document.
Updated Introduction chapter on page 6:
Updated “Kit Contents” on page 6:
Updated description.
Updated Figure 1-1.
Updated “Getting Started” on page 7:
Updated “Beginner Resources” on page 8:
Updated description.
Updated “Hardware Requirements” on page 8:
Updated description.
Updated “Additional Learning Resources” on page 9:
Updated description.
Updated Kit Operation chapter on page 30:
Updated “CAN Communication Hardware Setup” on page 30:
Updated Table 4-2:
Replaced “J19_3” with “J19_1”.
*B 5169205 03/10/2016 MVRE
Updated Introduction chapter on page 6:
Updated description.
Updated “Kit Contents” on page 6:
Updated “Kit Compatibility” on page 7:
Updated description.
Updated Hardware chapter on page 15:
Updated “System Block Diagram” on page 15:
Updated description.
*C 5713267 04/26/2017 SHEA Updated logo and copyright
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