Cypress Semiconductor CY8CKIT-042 User Manual

CY8CKIT-042

PSoC® 4 Pioneer Kit Guide

Doc. # 001-86371 Rev. *I

Cypress Semiconductor

198 Champion Court

San Jose, CA 95134-1709

www.cypress.com

Copyrights

Copyrights

© Cypress Semiconductor Corporation, 2013-2018. 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 refer­enced 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 spe­cifically 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 organi­zation, and (b) to distribute the Software in binary code form externally to end users (either directly or indirectly through resell­ers 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 PUR­POSE. No computing device can be absolutely secure. Therefore, despite security measures implemented in Cypress hard­ware or software products, Cypress does not assume any liability arising out of any security breach, such as unauthorized
access to or use of a Cypress product. In addition, the products described in these materials may contain design defects or
errors known as errata which may cause the product to deviate from published specifications. To the extent permitted by
applicable law, Cypress reserves the right to make changes to this document without further 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 weapons, 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 Un

Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F­RAM, 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 respec­tive owners.

PSoC Designer, PSoC Creator, SmartSense, and CapSense Express are trademarks of Cypress Semiconductor Corpora­tion.

intended Uses of Cypress products.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 2

Contents

Safety Information 5

1. Introduction 7

1.1 Kit Contents .................................................................................................................7

1.2 PSoC Creator™...........................................................................................................9

1.3 Getting Started.............................................................................................................9

1.4 Additional Learning Resources..................................................................................10

1.5 Documentation Conventions......................................................................................13

2. Software Installation 14

2.1 Install Kit Software .....................................................................................................14

2.2 Uninstall Software......................................................................................................16

1.4.1 PSoC Creator................................................................................................. 11

1.4.2 PSoC Creator Code Examples ......................................................................12

1.4.3 PSoC Creator Help ........................................................................................12

1.4.4 Technical Support...........................................................................................13

3. Kit Operation 17

3.1 Pioneer Kit USB Connection......................................................................................18

3.2 Programming and Debugging PSoC 4 ......................................................................19

3.2.1 Using the Onboard PSoC 5LP Programmer and Debugger ..........................19

3.2.2 Using CY8CKIT-002 MiniProg3 Programmer and Debugger.........................21

3.3 USB-UART Bridge .....................................................................................................22

3.4 USB-I2C Bridge .........................................................................................................24

3.5 Updating the Onboard Programmer Firmware ..........................................................25

4. Hardware 27

4.1 Board Details .............................................................................................................27

4.2 Theory of Operation...................................................................................................29

4.3 Functional Description ...............................................................................................30

4.3.1 PSoC 4...........................................................................................................30

4.3.2 PSoC 5LP ......................................................................................................31

4.3.3 Power Supply System ....................................................................................33

4.3.4 Programming Interface...................................................................................35

4.3.5 Arduino Compatible Headers (J1, J2, J3, J4, and J12 - unpopulated)...........36

4.3.6 Digilent Pmod Compatible Header (J5 - unpopulated)...................................38

4.3.7 PSoC 5LP GPIO Header (J8) ........................................................................39

4.3.8 CapSense Slider ............................................................................................40

4.3.9 Pioneer Board LEDs ......................................................................................41

4.3.10 Push Buttons..................................................................................................42

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 3

Contents

5. Code Examples 43

5.1 Using the Kit Code Examples ....................................................................................43

5.2 Using the Micrium® µC/Probe® Projects ..................................................................46

5.3 Blinking LED ..............................................................................................................47

5.3.1 Project Description .........................................................................................47

5.3.2 Hardware Connections...................................................................................47

5.3.3 Flow Chart......................................................................................................48

5.3.4 Verify Output ..................................................................................................48

5.4 PWM ..........................................................................................................................49

5.4.1 Project Description .........................................................................................49

5.4.2 Hardware Connections...................................................................................49

5.4.3 Flow Chart......................................................................................................50

5.4.4 Verify Output ..................................................................................................50

5.5 Deep Sleep ................................................................................................................51

5.5.1 Project Description .........................................................................................51

5.5.2 Hardware Connections...................................................................................51

5.5.3 Flow Chart......................................................................................................53

5.5.4 Verify Output ..................................................................................................53

5.6 CapSense ..................................................................................................................54

5.6.1 CapSense (Without Tuning)...........................................................................54

5.6.2 CapSense (With Tuning)................................................................................57

6. Advanced Topics 65

6.1 Using PSoC 5LP as a USB-UART Bridge .................................................................65

6.2 Using PSoC 5LP as USB-I2C Bridge ........................................................................79

6.3 Developing Applications for PSoC 5LP .....................................................................88

6.3.1 Building a Bootloadable Project for PSoC 5LP ..............................................88

6.3.2 Building a Normal Project for PSoC 5LP........................................................97

6.4 PSoC 5LP Factory Program Restore Instructions ...................................................100

6.4.1 PSoC 5LP is Programmed with a Bootloadable Application........................100

6.4.2 PSoC 5LP is Programmed with a Standard Application...............................105

6.5 Using µC/Probe Tool ...............................................................................................107

6.5.1 CapSense Code Example............................................................................108

6.5.2 PWM Code Example.................................................................................... 114

A. Appendix 116

A.1 CY8CKIT-042 Schematics.......................................................................................116

A.2 Pin Assignment Table..............................................................................................120

A.3 Program and Debug Headers..................................................................................123

A.4 Use of Zero-ohm Resistors and No Load ................................................................124

A.5 Error in Firmware/Status Indication in Status LED ..................................................124

A.6 Bill of Materials (BOM).............................................................................................125

A.7 Regulatory Compliance Information ........................................................................127

A.8 Migrating projects across different Pioneer series kits ............................................128

Revision History 132

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 4

Safety Information

The CY8CKIT-042 contains electrostatic discharge (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 CY8CKIT-042
boards in the protective shipping package.

End-of-Life/Product Recycling

This kit has an end-of-life cycle five years from the date of
manufacturing mentioned on the back of the box. Contact your nearest
recycler for discarding the kit.

Regulatory Compliance

The CY8CKIT-042 PSoC® 4 Pioneer 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. Due to this reason, the board 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, the user may be required to take adequate preventive measures.
Also, 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 CY8CKIT-042 as shipped from the factory has been verified to meet with requirements of CE as
a Class A product.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 5

General Safety Instructions

ESD Protection

ESD can damage boards and associated components. Cypress recommends that the user perform
procedures only at an ESD workstation. If an ESD workstation is not available, use appropriate ESD
protection by wearing an antistatic wrist strap attached to the chassis ground (any unpainted metal
surface) on the board when handling parts.

Handling Boards

CY8CKIT-042 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 board over any surface.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 6

1. Introduction

Thank you for your interest in the PSoC® 4 Pioneer Kit. The kit is designed as an easy-to-use and
inexpensive development kit, showcasing the unique flexibility of the PSoC 4 architecture. Designed
for flexibility, this kit offers footprint-compatibility with several third-party Arduino™ shields. This kit
has a provision to populate an extra header to support Digilent
addition, the board features a CapSense
USB programmer, a program and debug header, and USB-UART/I2C bridges. This kit supports
either 5 V or 3.3 V as power supply voltages.

The PSoC 4 Pioneer Kit is based on the PSoC 4200 device family, delivering a programmable
platform for a wide range of embedded applications. The PSoC 4 is a scalable and reconfigurable
platform architecture for a family of mixed-signal programmable embedded system controllers with
an Arm
with flexible automatic routing.

1.1 Kit Contents

®

Cortex™-M0 CPU. It combines programmable and reconfigurable analog and digital blocks

®

®

slider, an RGB LED, a push button switch, an integrated

Pmod™ peripheral modules. In

The PSoC 4 Pioneer kit contains:

■ PSoC 4 Pioneer board

■ Quick Start Guide

■ USB Standard-A to Mini-B cable

■ Six jumper wires

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 7

Figure 1-1. Kit Contents

Introduction

Inspect the contents of the kit; if you find any part missing, contact your nearest Cypress sales office
for help: www.cypress.com/support.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 8

1.2 PSoC Creator™

PSoC Creator is a state-of-the-art, easy-to-use integrated design environment (IDE). It introduces
revolutionary hardware and software co-design, powered by a library of pre-verified and pre­characterized PSoC Components™.

With PSoC Creator, you can:

■ Drag and drop PSoC components to build a schematic of your custom design

■ Automatically place and route components and configure GPIOs

■ Develop and debug firmware using the included component APIs

PSoC Creator also enables you to tap into an entire tools ecosystem with integrated compiler chains
and production programmers for PSoC devices.

For more information, visit www.cypress.com/creator.

1.3 Getting Started

This guide helps you to get acquainted with the PSoC 4 Pioneer Kit.

■ The Software Installation chapter on page 14 describes the installation of the kit software.

■ The Kit Operation chapter on page 17 explains how to program the PSoC 4 with a programmer

and debugger – either the onboard PSoC 5LP or the external MiniProg3 (CY8CKIT-002).

■ The Hardware chapter on page 27 details the hardware operation.

■ The Code Examples chapter on page 43 describes the code examples.

■ The Advanced Topics chapter on page 65 deals with topics such as building projects for

PSoC 5LP, USB-UART functionality, and USB-I2C functionality of PSoC 5LP.

■ The Appendix on page 116 provides the schematics, pin assignment, use of zero-ohm resistors,

troubleshooting, and the bill of materials (BOM).

Introduction

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 9

1.4 Additional Learning Resources

Cypress provides a wealth of data at www.cypress.com to help you to select the right PSoC device
for your design, and to help you to quickly and effectively integrate the device into your design. For a
comprehensive list of resources, see KBA86521, How to Design with PSoC 3, PSoC 4, and

PSoC 5LP. The following is an abbreviated list for PSoC 4:

■ Overview: PSoC Portfolio, PSoC Roadmap

■ Product Selectors: PSoC 1, PSoC 3, PSoC 4, or PSoC 5LP. In addition, PSoC Creator includes

a device selection tool.

■ Datasheets: Describe and provide electrical specifications for the PSoC 4000, PSoC 4100, and

PSoC 4200 device families.

■ CapSense Design Guide: Learn how to design capacitive touch-sensing applications with the

PSoC 4 family of devices.

■ Application Notes and Code Examples: Cover a broad range of topics, from basic to advanced

level. Many of the application notes include code examples. Visit the PSoC 3/4/5 Code Examples
webpage for a list of all available PSoC Creator code examples. For accessing code examples
from within PSoC Creator – see PSoC Creator Code Examples on page 12.

■ Technical Reference Manuals (TRM): Provide detailed descriptions of the architecture and

registers in each PSoC 4 device family.

■ Development Kits:

❐ CY8CKIT-042 and CY8CKIT-040, PSoC 4 Pioneer Kits, are easy-to-use and inexpensive

development platforms. These kits include connectors for Arduino compatible shields and
Digilent Pmod daughter cards.

❐ CY8CKIT-049 is a very low-cost prototyping platform for sampling PSoC 4 devices.

❐ CY8CKIT-001 is a common development platform for all PSoC family devices.

■ The MiniProg3 device provides an interface for flash programming and debug.

■ Knowledge Base Articles (KBA): Provide design and application tips from experts on the

devices/kits. For instance, KBA93541, explains how to use CY8CKIT-049 to program another
PSoC 4.

■ For a list of trainings on PSoC Creator, visit www.cypress.com/training.

Introduction

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1.4.1 PSoC Creator

PSoC Creator is a free Windows-based integrated design environment (IDE). It enables concurrent

hardware and firmware design of systems based on PSoC 3, PSoC 4, and PSoC 5LP. See

Figure 1-2 – with PSoC Creator, you can:

1. Drag and drop Components to build your hardware system design in the main design workspace

2. Codesign your application firmware with the PSoC hardware

3. Configure Components using configuration tools

4. Explore the library of 100+ Components

5. Access Component datasheets

Figure 1-2. PSoC Creator Features

Introduction

Visit PSoC Creator training page for video tutorials on learning and using PSoC Creator.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 11

1.4.2 PSoC Creator Code Examples

PSoC Creator includes a large number of code examples. These examples are accessible from the
PSoC Creator Start Page, as Figure 1-3 shows.

Code examples can speed up your design process by starting you off with a complete design,
instead of a blank page. They also show how PSoC Creator Components can be used for various
applications.

In the Find Code Example dialog, you have several options:

■ Filter for examples based on device family or keyword.

■ Select from the list of examples offered based on the Filter Options.

■ View the project documentation for the selection (on the Documentation tab).

■ View the code for the selection on the Sample Code tab. You can copy the code from this win-

dow and paste to your project, which can help speed up code development.

■ Create a new workspace for the code example or add to your existing workspace. This can

speed up your design process by starting you off with a complete, basic design. You can then
adapt that design to your application.

Figure 1-3. Code Examples in PSoC Creator

Introduction

1.4.3 PSoC Creator Help

Visit the PSoC Creator home page to download the latest version of PSoC Creator. Then, launch
PSoC Creator and navigate to the following items:

■ Quick Start Guide: Choose Help > Documentation > Quick Start Guide. This guide gives you

the basics for developing PSoC Creator projects.

■ Simple Component Code Examples: Choose File > Code Example. These code examples

demonstrate how to configure and use PSoC Creator Components. To access code examples
related to a specific Component, place the Component on the TopDesign schematic and right­click on the Component. Select the Find Code Example option in the context menu that
appears.

■ System Reference Guide: Choose Help > System Reference Guide. This guide lists and

describes the system functions provided by PSoC Creator.

■ Component Datasheets: Right-click a Component and select Open Datasheet. Visit the

PSoC 4 Component Datasheets page for a list of all PSoC 4 Component datasheets.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 12

1.4.4 Technical Support

If you have any questions, our technical support team is happy to assist you. You can create a sup­port request on the Cypress Technical Support page.

If you are in the United States, you can talk to our technical support team by calling our toll-free num­ber: [phone]. Select option 3 at the prompt.

You can also use the following support resources if you need quick assistance.

■ Self-help.

■ Local Sales Office Locations.

1.5 Documentation Conventions

Table 1-1. Document Conventions for Guides

Convention Usage

Courier New

Italics

[Bracketed, Bold]

File > Open

Bold

Times New Roman

Text in gray boxes Describes cautions or unique functionality of the product.

Displays file locations, user entered text, and source code:

C:\ ...cd\icc\

Displays file names and reference documentation:

Read about the sourcefile.hex file in the PSoC Creator User Guide.

Displays keyboard commands in procedures:
[Enter] or [Ctrl] [C]

Represents menu paths:
File > Open > New Project

Displays commands, menu paths, and icon names in procedures:
Click the File icon and then click Open.

Displays an equation:

2 + 2 = 4

Introduction

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 13

2. Software Installation

2.1 Install Kit Software

Follow these steps to install the CY8CKIT-042 PSoC 4 Pioneer Kit software:

1. Download the kit software from www.cypress.com/CY8CKIT-042. The kit software is available for
download in three formats.

a. CY8CKIT-042 Kit Complete Setup: This installation package contains the files related to the

kit including PSoC Creator and PSoC Programmer. However, it does not include the Windows
Installer or Microsoft .NET framework packages. If these packages are not on your computer,
the installer directs you to download and install them from the Internet.

b. CY8CKIT-042 Kit Only: This executable file installs only the kit contents, which include kit

code examples, hardware files, and user documents. This package can be used if all the
software prerequisites (listed in step 5) are installed on your computer.

c. CY8CKIT-042 DVD ISO: This file is a complete package, stored in a DVD-ROM image format,

which you can use to create a DVD or extract using an ISO extraction program such as
WinZip
drive programs such as Virtual CloneDrive and MagicISO. This file includes all the required
software, utilities, drivers, hardware files, and user documents.

2. If you have downloaded the ISO file, mount it in a virtual drive. Extract the ISO contents if you do

not have a virtual drive to mount. Double-click cyautorun.exe in the root directory of the extracted

content or mounted ISO if "Autorun from CD/DVD" is not enabled on the computer. The
installation window will appear automatically.
Note: If you are using the "Kit Complete Setup" or "Kit Only" file, then go to step 4 for
installation.

®

or WinRAR. The file can also be mounted similar to a virtual CD/DVD using virtual

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 14

Software Installation

3. Click Install CY8CKIT-042 PSoC 4 Pioneer Kit to start the kit installation, as shown in

Figure 2-1.

Figure 2-1. Kit Installer Screen

4. Select the directory in which you want to install the files related to the CY8CKIT-042 PSoC 4
Pioneer Kit. Choose the directory and click Next.

5. The CY8CKIT-042 PSoC 4 Pioneer Kit installer automatically installs the required software, if it is
not present on your computer. Following are the required software:

a. PSoC Creator 4.2 or later: This software is also available at www.cypress.com/psoccreator.

b. PSoC Programmer 3.27.1 or later: This is installed as part of PSoC Creator installation

(www.cypress.com/programmer).

6. Choose the Typical, Custom, or Complete installation type (select Ty pica l if you do not know
which one to select) in the Product Installation Overview window, as shown in Figure 2-2. Click
Next after you select the installation type.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 15

Figure 2-2. Product Installation Overview

Software Installation

7. Read the License agreement and select I accept the terms in the license agreement to
continue with the installation. Click Next.

8. When the installation begins, a list of packages appears on the installation page. A green check
mark appears next to each package after successful installation.

9. Enter your contact information or select the Continue Without Contact Information check box.
Click Finish to complete the kit installation.

10.After the installation is complete, the kit contents are available at the following location:

<Install_Directory>\CY8CKIT-042 PSoC 4 Pioneer Kit

Default location:

Windows OS (64-bit):

C:\Program Files (x86)\Cypress\CY8CKIT-042 PSoC 4 Pioneer Kit

Windows OS (32-bit):

C:\Program Files\Cypress\CY8CKIT-042 PSoC 4 Pioneer Kit

Note: For Windows 7/8/8.1/10 users, the installed files and the folder are read-only. To use the
installed code examples, follow the steps outlined in the Code Examples chapter on page 43. These
steps will create an editable copy of the example in a path that you choose, so the original installed
example is not modified.

2.2 Uninstall Software

The software can be uninstalled using one of the following methods:

1. Go to Start > All Programs > Cypress > Cypress Update Manager and select the Uninstall
button next to the product that needs to be uninstalled.

2. Go to Start > Control Panel > Programs and Features for Windows 7 or Add/Remove
Programs for Windows XP and select the Uninstall button.

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3. Kit Operation

Programmer

StatusLED

USBConnector

(J10)

PowerLED

PSoC4Additional

ProgramHeader(J6)

PSoC5LPI/O

Header(J8)

PSoC4

Reset

Button

DigilentPmod

Compatible

I/OHeader(J5)

SystemPower

SupplyJumper

(J9)

Arduino

Compatible

I/OHeader(J3)

Arduino

Compatible

I/OHeader(J4)

Arduino
Compatible
I/OHeader

(J1)

PSoC5LP

Programmer

and

Debugger

User

Button

PSoC4

44TQFP

Arduino
Compatible
I/OHeader

(J2)

VIN(J11)

10‐PinSWD

DebugandProgramming

Header(J7)forPSoC5LP

RGB

LED

PSoC4

PowerSupply

Jumper(J13)

Arduino
CompatibleICSP
I/OHeader(J12)

CapSense

Slider

The PSoC 4 Pioneer Kit can be used to develop applications using the PSoC 4 family of devices and
the Arduino shields and Digilent Pmod daughter cards. Figure 3-1 is an image of the PSoC 4
Pioneer board with a markup of the onboard components.

Figure 3-1. PSoC 4 Pioneer Board

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3.1 Pioneer Kit USB Connection

The PSoC 4 Pioneer Kit connects to the PC over a USB interface. The kit enumerates as a
composite device and three separate devices appear under the Device Manager window in the
Windows operating system.

Table 3-1. PSoC 4 Pioneer Kit in Device Manager After Enumeration

Port Description

USB Composite Device Composite device

Kit Operation

USB Input Device

KitProg Programmer and debugger

KitProg USB-UART USB-UART bridge, which appears as the COM# port

2

USB-I

C bridge, KitProg command interface

Figure 3-2. KitProg Driver Installation

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3.2 Programming and Debugging PSoC 4

PSoC 5LP

PSoC 4

SWDCLK

SWDIO

Reset

P2[1]

P2[0]

P2[4]

P3[3]

P3[2]

XRES

Mini

USB

D-

D+

P15[6]

P15[7]

VDD

The kit allows programming and debugging of the PSoC 4 device in two modes:

■ Using the onboard PSoC 5LP programmer and debugger

■ Using a CY8CKIT-002 MiniProg3 programmer and debugger

3.2.1 Using the Onboard PSoC 5LP Programmer and Debugger

The default programming interface for the kit is a USB-based, onboard programming interface.
Before trying to program the device, PSoC Creator and PSoC Programmer must be installed. See

Install Kit Software on page 14 for information on installing the kit software.

1. To program the device, plug the USB cable into the programming USB connector J10, as shown
in Figure 3-3. The kit will enumerate as a composite device. See Pioneer Kit USB Connection on

page 18 for details.

Figure 3-3. Connect USB Cable to J10

Kit Operation

2. The onboard PSoC 5LP uses serial wire debug (SWD) to program the PSoC 4 device. See

Figure 3-4 for this implementation.

Figure 3-4. SWD Programming PSoC 4 Using PSoC 5LP

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Kit Operation

3. The Pioneer Kit’s onboard programmer will enumerate on the PC and in the software tools as
KitProg. Load a code example in PSoC Creator (such as the examples described in the Code

Examples chapter on page 43) and initiate the build by clicking Build > Build Project or

[Shift]+[F6].

Figure 3-5. Build Project in PSoC Creator

4. After the project is built without errors and warnings, select Debug > Program or [Ctrl]+[F5] to
program the device.

Figure 3-6. Program Device from PSoC Creator

The onboard programmer supports only the RESET programming mode. When using the onboard
programmer, the board can either be powered by the USB (VBUS) or by an external source such as
an Arduino shield. If the board is already powered from another source, plugging in the USB
programmer does not damage the board.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 20

3.2.2 Using CY8CKIT-002 MiniProg3 Programmer and Debugger

The PSoC 4 on the Pioneer Kit can also be programmed using a MiniProg3 (CY8CKIT-002). To use
MiniProg3 for programming, use the J6 connector on the board, as shown in Figure 3-7.

The board can also be powered from the MiniProg3. To do this, select Tool > Options. In the
Options window, expand Program and Debug > Port Configuration; click MiniProg3 and select
the settings shown in Figure 3-8. Click Debug > Program to program and power the board.

Note: The CY8CKIT-002 MiniProg3 is not part of the PSoC 4 Pioneer Kit contents. It can be
purchased from the Cypress Online Store.

Figure 3-7. PSoC 4 Programming/Debugging Using MiniProg3

Kit Operation

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 21

Figure 3-8. MiniProg3 Configuration

Kit Operation

Note: See the Programmer User Guide for more information on programming using a MiniProg3.

3.3 USB-UART Bridge

The onboard PSoC 5LP can also act as a USB-UART bridge to transfer and receive data from the
PSoC 4 device to the PC via the COM terminal software. When the USB mini-B cable is connected
to J10 of the PSoC 4 Pioneer Kit, a device named KitProg USB-UART is available under Ports
(COM & LPT) in the device manager. For more details about the USB-UART functionality, see Using

PSoC 5LP as a USB-UART Bridge on page 65.

To use the USB-UART functionality in the COM terminal software, select the corresponding COM
port as the communication port for transferring data to and from the COM terminal software.

The UART lines from PSoC 5LP are brought to the P12[6] (J8.9) and P12[7] (J8.10) pins of header
J8. This interface can be used to send or receive data from any PSoC 4 design that has a UART by
connecting the pins on header J8 to the RX and TX pins assigned in PSoC 4. The UART can be
used as an additional interface to debug designs. This bridge can also be used to interface with
other external UART-based devices. Figure 3-9 shows the connection between the RX and TX lines
of the PSoC 5LP and PSoC 4. In this example, the PSoC 4 UART has been routed to the J4 header;
the user must connect the wires between the PSoC 5LP RX and TX lines available on header J8.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 22

Figure 3-9. Example RX and TX Line Connection of PSoC 5LP and PSoC 4

Ta bl e 3 -2 lists the specifications supported by the USB-UART bridge.

Kit Operation

Table 3-2. Specifications Supported by USB-UART Bridge

Parameter Supported Values

Baud Rate 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200

Data Bits 8

Parity None

Stop Bits 1

Flow Control None

File transfer protocols
supported

Xmodem, 1K Xmodem, Ymodem, Kermit, and Zmodem (only speeds greater
than 2400 baud).

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 23

3.4 USB-I2C Bridge

The PSoC 5LP also functions as a USB-I2C bridge. The PSoC 4 communicates with the PSoC 5LP
using an I2C interface and the PSoC 5LP transfers the data over the USB to the USB-I2C software
utility on the PC, called the Bridge Control Panel (BCP).

The BCP is available as part of the PSoC Programmer installation. This software can be used to
send and receive USB-I2C data from the PSoC 5LP. When the USB mini-B cable is connected to
header J10 on the Pioneer Kit, the KitProg/<serial_number> is available under Connected I2C/
SPI/RX8 Ports in the BCP.

Figure 3-10. Bridge Control Panel

Kit Operation

To use the USB_I2C functionality, select the KitProg/<serial_number> in the BCP. On successful
connection, the Connected and Powered tabs turn green.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 24

Figure 3-11. KitProg USB-I2C Connected in Bridge Control Panel

Kit Operation

USB-I2C is implemented using the USB and I2C components of PSoC 5LP. The SCL (P12_0) and
SDA (P12_1) lines from the PSoC 5LP are connected to SCL (P3_0) and SDA (P3_1) lines of the
PSoC 4 I2C. The USB-I2C bridge currently supports I2C speed of 50 kHz, 100 kHz, 400 kHz, and
1MHz.

Refer to Using PSoC 5LP as USB-I2C Bridge on page 79 for building a project, which uses USB-I2C
Bridge functionality.

3.5 Updating the Onboard Programmer Firmware

The firmware of the onboard programmer and debugger, PSoC 5LP, can be updated from PSoC
Programmer. When a new firmware is available or when the KitProg firmware is corrupt (see Error in

Firmware/Status Indication in Status LED on page 124), PSoC Programmer displays a warning

indicating that new firmware is available.

Open PSoC Programmer from Start > All Programs > Cypress > PSoC Programmer<version>.
When PSoC Programmer opens, a WARNING! window pops up saying that the programmer is
currently out of date.

Figure 3-12. Firmware Update Warning

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 25

Kit Operation

Click OK to close the window. On closing the warning window, the Action and Results window
displays “Please navigate to the Utilities tab and click the Upgrade Firmware button”.

Figure 3-13. Upgrade Firmware Message in PSoC Programmer

Click the Utilities tab and click the Upgrade Firmware button. On successful upgrade, the Action
and Results window displays the firmware update message with the KitProg version.

Figure 3-14. Firmware Updated in PSoC Programmer

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 26

4. Hardware

Programmer

StatusLED

USBConnector

(J10)

PowerLED

PSoC4Additional

ProgramHeader(J6)

PSoC5LPI/O

Header(J8)

PSoC4

Reset

Button

DigilentPmod

Compatible

I/OHeader(J5)

SystemPower

SupplyJumper

(J9)

Arduino

Compatible

I/OHeader(J3)

Arduino

Compatible

I/OHeader(J4)

Arduino
Compatible
I/OHeader

(J1)

PSoC5LP

Programmer

and

Debugger

User

Button

PSoC4

44TQFP

Arduino
Compatible
I/OHeader

(J2)

VIN(J11)

10‐PinSWD

DebugandProgramming

Header(J7)forPSoC5LP

RGB

LED

PSoC4

PowerSupply

Jumper(J13)

Arduino
CompatibleICSP
I/OHeader(J12)

CapSense

Slider

4.1 Board Details

The PSoC 4 Pioneer Kit consists of the following blocks:

■ PSoC 4

■ PSoC 5LP

■ Power supply system

■ Programming interfaces (J6, J7 - unpopulated, J10)

■ Arduino compatible headers (J1, J2, J3, J4, and J12 - unpopulated)

■ Digilent Pmod compatible header (J5 - unpopulated)

■ PSoC 5LP GPIO header (J8)

■ CapSense slider

■ Pioneer board LEDs

■ Push buttons (Reset and User buttons)

Figure 4-1. PSoC 4 Pioneer Kit Details

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 27

Arduino

Compatible

I/O Header (J3)

Arduino

Compatible

I/O Header (J4)

Arduino
Compatible
I/O Header (J2)

Arduino
Compatible
I/O Header (J1)

Digilent Pmod
Compatible
I/O Header (J5)

PSoC 5LP

I/O Header (J8)

P4_0

P4_1

P1_7/AREF

GND/GND

P0_6/D13

P3_1/D12

P3_0/D11

P3_4/D10

P3_6/D9

P2_6/D8

P2_7/D7

P1_0/D6

P3_5/D5

P0_0/D4

P3_7/D3

P0_7/D2

P0_5/D1

P0_4/D0

A0/P2_0

A1/P2_1

A2/P2_2

A3/P2_3

A4/P2_4

A5/P2_5

P0_0

P0_1

P1_0

P0_2

P0_3

VDD

P1_5

P1_4

P1_3

GND

P1_2

P1_1

NC

OREF/P4_VDD

RESET/RESET

3.3V/V3.3_EXT

5V/VBUS

GND/GND

GND/GND

Vin/VIN

VCC/P4_VDD

GND/GND

SCK/P0_6

MISO/P3_1

MOSI/P3_0

SS/P3_5

P5_VDD

P0_0

P3_4

P3_6

P12_6

GND

P3_0

P12_7

P3_7

P3_5

P0_1

P1_2

Arduino UNO

PSoC 4 Pioneer Kit

Digilent Pmod

I

Figure 4-2. PSoC 4 Pioneer Kit Pin Mapping

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 28

4.2 Theory of Operation

This section provides the block-level description of the PSoC 4 Pioneer Kit.

Figure 4-3. Block Diagram

Hardware

The PSoC 4 is a new generation of programmable system-on-chip devices from Cypress for
embedded applications. It combines programmable analog, programmable digital logic,
programmable I/O, and a high-performance Arm Cortex-M0 subsystem. With the PSoC 4, you can
create the combination of peripherals required to meet the application specifications.

The PSoC 4 Pioneer Kit features an onboard PSoC 5LP, which communicates through the USB to
program and debug the PSoC 4 using serial wire debug (SWD). The PSoC 5LP also functions as a
USB-I2C bridge and USB-UART bridge.

The Pioneer Kit has an RGB LED, a status LED, and a power LED. The RGB LED is connected to
the PSoC 4 and the status LED is connected to the PSoC 5LP. For more information on the status
LED, see section A.5 Error in Firmware/Status Indication in Status LED on page 124. This kit also
includes a reset button that connects to the PSoC 4 XRES, a user button, and a five-segment
CapSense slider, which can be used to develop touch-based applications. The PSoC 4 pins are
brought out onto headers J1 to J4 on the kit to support Arduino shields. The PSoC 5LP pins are
brought out onto header J8 to enable using the onboard PSoC 5LP to develop custom applications.

The PSoC 4 Pioneer Kit can be powered from the USB Mini B, the Arduino compatible header, or an
external power supply. The input voltage is regulated by a low drop-out (LDO) regulator to 3.3 V. You
can select between VBUS (5 V) and 3.3 V by suitably plugging the jumper onto the voltage selection
header VDD.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 29

4.3 Functional Description

4.3.1 PSoC 4

This kit uses the PSoC 4200 family device. PSoC 4200 devices are a combination of a
microcontroller with programmable logic, high-performance analog-to-digital conversion, two
opamps with comparator mode, and commonly used fixed-function peripherals. For more
information, refer to the PSoC 4 webpage and the PSoC 4200 family datasheet.

Features

■ 32-bit MCU subsystem
❐ 48 MHz Arm Cortex-M0 CPU with single cycle multiply
❐ Up to 32 KB of flash with read accelerator
❐ Up to 4 KB of SRAM

■ Programmable analog
❐ Two opamps with reconfigurable high-drive external and high-bandwidth internal drive, com-

parator modes, and ADC input buffering capability

❐ 12-bit 1-Msps SAR ADC with differential and single-ended modes; channel sequencer with

signal averaging

❐ Two current DACs (IDACs) for general-purpose or capacitive sensing applications on any pin
❐ Two low-power comparators that operate in deep sleep

■ Programmable digital
❐ Four programmable logic blocks called universal digital blocks (UDBs), each with eight Macro-

cells and data path

❐ Cypress-provided peripheral component library, user-defined state machines, and Verilog

input

■ Low power 1.71 to 5.5 V operation
❐ 20-nA Stop mode with GPIO pin wakeup
❐ Hibernate and Deep-Sleep modes allow wakeup-time versus power trade-offs

■ Capacitive sensing
❐ Cypress Capacitive Sigma-Delta (CSD) provides best-in-class SNR (greater than 5:1) and

water tolerance

❐ Cypress-supplied software component makes capacitive sensing design easy
❐ Automatic hardware tuning (SmartSense™)

■ Segment LCD drive
❐ LCD drive supported on all pins (common or segment)
❐ Operates in Deep-Sleep mode with 4 bits per pin memory

■ Serial communication
❐ Two independent run-time reconfigurable serial communication blocks (SCBs) with re-config-

urable I2C, SPI, or UART functionality

■ Timing and pulse-width modulation
❐ Four 16-bit Timer/Counter Pulse-Width Modulator (TCPWM) blocks
❐ Center-aligned, Edge, and Pseudo-random modes
❐ Comparator-based triggering of Kill signals for motor drive and other high-reliability digital

logic applications

■ Up to 36 programmable GPIOs
❐ 44-pin TQFP, 40-pin QFN, and 28-pin SSOP packages
❐ Any GPIO pin can be CapSense, LCD, analog, or digital
❐ Drive modes, strengths, and slew rates are programmable

■ PSoC Creator design environment
❐ Integrated development environment (IDE) provides schematic design entry and build (with

analog and digital automatic routing)

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 30

❐ Applications Programming Interface (API) component for all fixed-function and programmable

peripherals

■ Industry-standard tool compatibility
❐ After schematic entry, development can be done with Arm-based industry-standard develop-

ment tools

For more information see the CY8C42 family datasheet.

4.3.2 PSoC 5LP

An onboard PSoC 5LP is used to program and debug PSoC 4. The PSoC 5LP connects to the USB
port of the PC through a USB Mini B connector and to the SWD interface of the PSoC 4 device.

PSoC 5LP is a true system-level solution providing MCU, memory, analog, and digital peripheral
functions in a single chip. The CY8C58LPxx family offers a modern method of signal acquisition,
signal processing, and control with high accuracy, high bandwidth, and high flexibility. Analog
capability spans the range from thermocouples (near DC voltages) to ultrasonic signals. For more
information, refer to the PSoC 5LP webpage.

Features

■ 32-bit Arm Cortex-M3 CPU core
❐ DC to 67-MHz operation
❐ Flash program memory, up to 256 KB, 100,000 write cycles, 20-year retention, and multiple

security features

❐ Up to 32-KB flash error correcting code (ECC) or configuration storage
❐ Up to 64 KB SRAM
❐ 2-KB electrically erasable programmable read-only memory (EEPROM) memory, 1 M cycles,

and 20 years retention

❐ 24-channel direct memory access (DMA) with multilayer AHB bus access

a.Programmable chained descriptors and priorities
b.High bandwidth 32-bit transfer support

■ Low voltage, ultra low power
❐ Wide operating voltage range: 0.5 V to 5.5 V
❐ High-efficiency boost regulator from 0.5 V input to 1.8 V to 5.0 V output
❐ 3.1 mA at 6 MHz
❐ Low power modes including:

a.2-µA sleep mode with real time clock (RTC) and low-voltage detect (LVD) interrupt
b.300-nA hibernate mode with RAM retention

■ Versatile I/O system
❐ 28 to 72 I/Os (62 GPIOs, 8 SIOs, 2 USBIOs)
❐ Any GPIO to any digital or analog peripheral routability
❐ LCD direct drive from any GPIO, up to 46×16 segments
❐ CapSense support from any GPIO[3]
❐ 1.2 V to 5.5 V I/O interface voltages, up to 4 domains
❐ Maskable, independent IRQ on any pin or port
❐ Schmitt-trigger transistor-transistor logic (TTL) inputs
❐ All GPIOs configurable as open drain high/low, pull-up/pull-down, High-Z, or strong output
❐ Configurable GPIO pin state at power-on reset (POR)
❐ 25 mA sink on SIO

■ Digital peripherals
❐ 20 to 24 programmable logic device (PLD) based universal digital blocks (UDBs)
❐ Full CAN 2.0b 16 RX, 8 TX buffers
❐ Full-Speed (FS) USB 2.0 12 Mbps using internal oscillator

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 31

Hardware

❐ Four 16-bit configurable timers, counters, and PWM blocks
❐ 67-MHz, 24-bit fixed point digital filter block (DFB) to implement finite impulse response (FIR)

and infinite impulse response (IIR) filters

❐ Library of standard peripherals

a.8-, 16-, 24-, and 32-bit timers, counters, and PWMs
b.Serial peripheral interface (SPI), universal asynchronous transmitter receiver (UART), and

I2C
c.Many others available in catalog

❐ Library of advanced peripherals

a.Cyclic redundancy check (CRC)
b.Pseudo random sequence (PRS) generator
c.Local interconnect network (LIN) bus 2.0
d.Quadrature decoder

❐ Analog peripherals (1.71 V  VDDA  5.5 V)
❐ 1.024 V ±0.1% internal voltage reference across –40 °C to +85 °C
❐ Configurable delta-sigma ADC with 8- to 20-bit resolution
❐ Sample rates up to 192 ksps
❐ Programmable gain stage: ×0.25 to ×16
❐ 12-bit mode, 192 ksps, 66-dB signal to noise and distortion ratio (SINAD), ±1-bit INL/DNL
❐ 16-bit mode, 48 ksps, 84-dB SINAD, ±2-bit INL, ±1-bit DNL
❐ Up to two SAR ADCs, each 12-bit at 1 Msps
❐ Four 8-bit 8 Msps current IDACs or 1-Msps voltage VDACs
❐ Four comparators with 95-ns response time
❐ Four uncommitted opamps with 25-mA drive capability
❐ Four configurable multifunction analog blocks. Example configurations are programmable

gain amplifier (PGA), transimpedance amplifier (TIA), mixer, and sample and hold

❐ CapSense support

■ Programming, debug, and trace
❐ JTAG (4 wire), SWD (2 wire), single wire viewer (SWV), and TRACEPORT interfaces
❐ Cortex-M3 flash patch and breakpoint (FPB) block
❐ Cortex-M3 Embedded Trace Macrocell™ (ETM™) generates an instruction trace stream
❐ Cortex-M3 data watchpoint and trace (DWT) generates data trace information
❐ Cortex-M3 Instrumentation Trace Macrocell (ITM) can be used for printf-style debugging
❐ DWT, ETM, and ITM blocks communicate with off-chip debug and trace systems via the SWV

or TRACEPORT

❐ Bootloader programming supportable through I2C, SPI, UART, USB, and other interfaces

■ Precision, programmable clocking
❐ 3- to 62-MHz internal oscillator over full temperature and voltage range
❐ 4- to 25-MHz crystal oscillator for crystal PPM accuracy
❐ Internal PLL clock generation up to 67 MHz
❐ 32.768-kHz watch crystal oscillator
❐ Low-power internal oscillator at 1, 33, and 100 kHz

For more, see the CY8C58LPxx family datasheet.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 32

4.3.3 Power Supply System

I/OHeader

USB

5V

Vin 3.3V

PSoC5LP

USB

5V

P4 10pin

Debug

P5LP I/O

Header

PTC

LDO

ESD

Protection

J9

P5LP 10pin

Debug

MOSFETbased

ProtectionCkt

PSoC4

The power supply system on this board is versatile, allowing the input supply to come from the
following sources:

■ 5-V power from onboard USB programming header J10

■ 5-V to 12-V power from Arduino shield using J1.1 header

■ VTARG - power from the onboard SWD programming using J6 or J7

■ VIN - J11

The PSoC 4 and PSoC 5LP are powered with either a 3.3 V or 5 V source. The selection between

3.3 V and 5 V is made through the J9 jumper. The board can supply 3.3 V and 5 V to the I/O headers

and receive 3.3 V from the I/O headers. The board can also be powered with an external power
supply through the VIN (J11) header; the allowed voltage range for the VIN is 5 V to 12 V. The LDO
regulator regulates the VIN down to 3.3 V. Figure 4-4 shows the power supply block diagram and
protection circuitry.

Note: The 5-V domain is directly powered by the USB (VBUS). For this reason, this domain is
unregulated.

Figure 4-4. Power Supply Block Diagram with Protection Circuits

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 33

4.3.3.1 Protection Circuit

The power supply rail has reverse-voltage, over-voltage, short circuits, and excess current protection
features, as seen in Figure 4-4.

■ The Schottky diode (D4) ensures power cannot be supplied to the 5-V domain of the board from

the I/O header.

■ The series protection diode (D2) ensures VIN (power supply from the I/O header) does not back

power the USB.

■ The Schottky diode (D11) ensures 3.3 V from I/O header does not back power the LDO.

■ The series protection diode (D13) ensures that the reverse-voltage cannot be supplied from the

VIN to the regulator input.

■ A PTC resettable fuse is connected to protect the computer's USB ports from shorts and over-

current.

■ The MOSFET-based protection circuit provides over-voltage and reverse-voltage protection to

the 3.3-V rail. The PMOS Q1 protects the board components from a reverse-voltage condition.
The PMOS Q2 protects the PSoC from an over-voltage condition. The PMOS Q2 will turn off
when a voltage greater than 4.2 V is applied, protecting the PSoC 4.

■ The output voltage of the LDO is adjusted such that it takes into account the voltage drop across

the Schottky diode and provides 3.3 V.

Hardware

4.3.3.2 Procedure to Measure PSoC 4 Current Consumption

The following three methods are supported for measuring current consumption of the PSoC 4
device.

■ When the board is powered through the USB port (J10), remove jumper J13 and connect an

ammeter, as shown in Figure 4-5.

Figure 4-5. PSoC 4 Current Measurement when Powered from USB Port

■ When using a separate power supply for the PSoC 4 with USB powering (regulator output on the

USB supply must be within 0.5 V of the separate power supply).

❐ Remove jumper J13. Connect the positive terminal of voltage supply to the positive terminal of

the ammeter and the negative terminal of the ammeter to the lower pin of J13. Figure 4-6
shows the required connections.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 34

Hardware

VOLTAGE
SOURCE

Figure 4-6. PSoC 4 Current Measurement when Powered Separately

■ When the PSoC 4 is powered separately and the PSoC 5LP is not powered, make these changes

to avoid leakage while measuring current:

❐ Remove the zero-ohm resistors R24 and R25. Removing these resistors will affect the USB-

I2C functionality.

❐ Remove R32, R33, and R34, which are meant for programming the PSoC 4. Removing these

resistors disables the PSoC 5LP capability for programming.

❐ Connect an ammeter between pins 1 and 2 of header J13 to measure current.

Figure 4-7. Zero-ohm Resistor Position

4.3.4 Programming Interface

The kit allows programming and debugging of the PSoC 4 in two modes:

■ Using the Onboard PSoC 5LP Programmer and Debugger

■ Using CY8CKIT-002 MiniProg3 Programmer and Debugger

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 35

4.3.5 Arduino Compatible Headers (J1, J2, J3, J4, and J12 - unpopulated)

This kit has five Arduino compatible headers; J1, J2, J3, J4 and J12. You can develop applications
based on the Arduino shield’s hardware.

Figure 4-8. Arduino Header

Hardware

The J1 header contains I/O pins for reset, internal reference voltage (IOREF), and power supply line.
The J2 header is an analog port. It contains I/O pins for SAR ADC, comparator, and opamp. The J3
header is primarily a digital port. It contains I/O pins for PWM, I2C, SPI, and analog reference. The
J4 header is also a digital port. It contains I/O pins for UART and PWM. The J12 header is an
Arduino ICSP compatible header for the SPI interface. This header is not populated. Refer to the “No
Load Components” section of A.6 Bill of Materials (BOM) on page 125 for the header part number.

Note: The PSoC 4 pin P0[0] is connected to both pin 13 of the J2 header and pin 5 of the J4 header.
Similarly, the PSoC 4 pin P1[0] is connected to both pin 17 of the J2 header and pin 7 of the J4
header. Therefore, when using P0[0] or P1[0] from either the J2 or J4 header, there should not be
any external signal connected to the other header.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 36

Figure 4-9. Arduino Compatible Headers

Arduino

Compatible

I/O Header (J3)

Arduino

Compatible

I/O Header (J4)

Arduino

Compatible

I/O Header (J1)

Arduino

Compatible

I/O Header (J2)

Arduino

Compatible ICSP

I/O Header (J12)

(J1-J4) Arduino Compatible Headers

I2C Pull up
Resistors

P2_0
P2_1
P2_2
P2_3
P2_4
P2_5
P0_0
P0_1

P0_2
P0_3

P1_5
P1_4
P1_3

P1_2

P0_5

P0_4

P0_7
P3_7
P0_0
P3_5
P1_0
P2_7

P2_6

P3_6

P3_4

P3_0

P3_1

P0_6

P1_7

P4_1

P4_0

/XRES

V3.3_EXT

IOREF

P1_1P1_0

P4_VDD

VBUS

P4_VDD

VIN

P4_VDD J4

8x1 RECP

1
2
3
4
5
6
7
8

0603

R9

2.2K

SOD123

D4

J2

9x2 RECP

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18

TVS4

18V 350W BI

J1

8x1 RECP

1
2
3
4
5
6
7
8

J3

10X1 RECP

1

2

3

4

5

6

7

8

9

10

0603

R8

2.2K

NO LOAD

P3_1
P0_6
/XRES

P3_0

P4_VDD

J12

3x2 RECPT

1 2
3 4
5 6

Hardware

4.3.5.1 Additional Functionality of Header J2

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 37

The J2 header is a 9×2 header that supports Arduino shields. The port 0, port 1, and port 2 pins of
PSoC 4 are brought to this header. The port 1 pins additionally connect to the onboard CapSense
slider through 560- resistors. When the CapSense feature is not used, remove these resistors to
ensure a better performance with these pins.

4.3.5.2 Functionality of Unpopulated Header J12

The J12 header is a 2×3 header that supports Arduino shields. This header is used on a small
subset of shields and is unpopulated on the PSoC 4 Pioneer Kit. Note that the J12 header only
functions in 5.0 V mode. To ensure proper shield functionality, ensure the power jumper is connected
in 5.0 V mode.

4.3.6 Digilent Pmod Compatible Header (J5 - unpopulated)

This port supports Digilent Pmod peripheral modules. Pmods are small I/O interfaces, which connect
with the embedded control boards through either 6- or 12-pin connectors. The PSoC Pioneer Kit
supports the 6-pin Pmod type 2 (SPI) interface. For Digilent Pmod cards, go to www.digilentinc.com.

This header is not populated on the PSoC 4 Pioneer Kit. You must populate this header before
connecting the Pmod daughter cards. Refer to the “No Load Components” section of A.6 Bill of

Materials (BOM) on page 125 for the header part number.

Figure 4-10. Pmod Connection

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 38

Figure 4-11. Digilent Pmod Interface

J5 Digilent PMOD Cards
Compatible Headers

NO LOAD

P3_5
P3_0
P3_1
P0_6

P4_VDD

J5

6X1 CONN FEMALE

1
2
3
4
5
6

PSoC 5LP GPIO Extension Header

P5LP0_0

P5LP1_2

P5LP3_5P5LP3_4

P5LP3_0

P5LP0_1

P5LP3_6 P5LP3_7

P5LP12_7P5LP12_6

P5LP_VDD

J8

6x2 RECPT

1 2
3 4
5 6
7 8

109
1211

See A.2 Pin Assignment Table on page 120 for details on the pin descriptions for the J5 header.

4.3.7 PSoC 5LP GPIO Header (J8)

A limited set of PSoC 5LP pins are brought to this header. Refer to 6.3 Developing Applications for

PSoC 5LP on page 88 for details on how to develop custom applications. See A.2 Pin Assignment
Table on page 120 for pin details.

Hardware

Figure 4-12. PSoC 5LP GPIO Header (J8)

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 39

4.3.8 CapSense Slider

P1_1

P1_2

P1_3

P1_4

P1_5

R17

560 ohm

R20

560 ohm

R21

560 ohm

R19

560 ohm

CSS1

CapSense Slider 5 Seg

1

2

3

4

5

R18

560 ohm

Shunt
Resistor

CAPSENSE TUNING CIRCUITRY
Default Loaded For CSD

NO LOAD

Shield Setting

P4_2

ShieldP0_1

0603

R45 ZERO

C1
2200 pF

0603

R44 ZERO

R1
NO LOAD

The kit has a five-segment linear capacitive touch slider on the board, which is connected to pins
P1[1] to P1[5] of the PSoC 4 device.

The modulation capacitor (Cmod) is connected to pin P4[2] and an optional bleeder resistor (R1) can
be connected across the Cmod. This board supports CapSense designs that enable waterproofing.

The waterproofing design uses a concept called shield, which is a conductor placed around the
sensors. This shield must be connected to a designated shield pin on the device to function. The
shield must be connected to the ground when not used. On the PSoC 4 Pioneer Kit, the connection
of the shield to the pin or to the ground is made by resistors R44 and R45, respectively. By default,
R45 is mounted on the board, which connects the shield to the ground. Populate R44 when
evaluating waterproofing designs, which will connect the shield to the designated pin, P0[1]. This
shield is different from the Arduino shields, which are boards that connect over the Arduino header.
Refer to the CapSense Design Guide for further details related to CapSense.

Figure 4-13. CapSense Slider

Hardware

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 40

Figure 4-14. CapSense Slider Connection

4.3.9 Pioneer Board LEDs

P5LP3_1

P5LP_VDD

0805

R31

330 ohm

0805

D10

Status LED Green

2 1

VDD

R3 560 ohm

0805

D3

Power LED

2 1

P0_2

P0_3

P1_6

P4_VDD

RG

B

D9

1

2 3

4

R29 1.5K

R30 1.5K

R28 2.2K

The PSoC 4 Pioneer board has three LEDs. A green LED (D10) indicates the status of the
programmer. See A.5 Error in Firmware/Status Indication in Status LED for a detailed list of LED
indications. An amber LED (D3) indicates status of power supplied to the board. The kit also has a
general-purpose tricolor LED (D9) for user applications that connect to specific PSoC 4 pins.

Figure 4-15 shows the indication of all these LEDs on the board. Figure 4-16 and Figure 4-17 detail

the LED schematic.

Figure 4-15. Pioneer Kit LEDs

Hardware

Figure 4-16. Status LED and Power LED

Figure 4-17. RGB LED

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 41

4.3.10 Push Buttons

USER BUTTON

RESET

/XRES

P0_7

SW2

EVQ-PE105K

1 2

SW1

EVQ-PE105K

1 2

The kit contains a Reset push button and a User push button, as shown in Figure 4-18.

The Reset button is connected to the XRES pin of PSoC 4 and is used to reset the onboard PSoC 4
device. The User button is connected to P0[7] of PSoC 4 device. Both the push buttons connect to
ground on activation (active low).

Figure 4-18. Push Buttons

Hardware

Note: The PSoC 4 Reset pin (XRES) has an internal pull-up resistor. However, an external pull-up
resistor R10 is connected to the PSoC 4 Reset pin on the kit, which is optional and required only in a
noisy system.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 42

5. Code Examples

The code examples described in this chapter introduce the functionality of the PSoC 4 device and
the onboard components. To access the examples, download the CD ISO image or setup files from
the kit webpage. After installation, the code examples will be available from Start > Kits on the
PSoC Creator Start Page. For a list of all code examples available with PSoC Creator visit PSoC 3/

PSoC 4/PSoC 5LP Code Examples webpage.

5.1 Using the Kit Code Examples

Follow these steps to open and program code examples:

1. Launch PSoC Creator from Start > All Programs > Cypress > PSoC Creator<version> >
PSoC Creator <version>.

2. On the Start page, click CY8CKIT-042 under Start > Kits. A list of code examples appears, as
shown in Figure 5-1.

Figure 5-1. Open Code Example from PSoC Creator

3. Build the code example by choosing Build > Build <Project name>. After the build process is

successful, a .hex file is generated.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 43

Code Examples

Figure 5-2. Build Code Example from PSoC Creator

4. To program, connect the PSoC 4 Pioneer Kit to the computer using the USB cable connected to
port J10, as described in section 3.2 Programming and Debugging PSoC 4 on page 19. The
board is detected as KitProg.

5. Choose Debug > Program in PSoC Creator.

Figure 5-3. Program Device from PSoC Creator

6. If the device is yet to be acquired, the Select Debug Target window will appear. Select KitProg/
<serial_number> and click Port Acquire, as shown in Figure 5-4.

Figure 5-4. Acquire Device from PSoC Creator

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 44

Code Examples

7. After the device is acquired, it is shown in a tree structure below the KitProg/<serial_number>.
Now, click the Connect button.

Figure 5-5. Connect Device from PSoC Creator

8. Click OK to exit the window and start programming.

Figure 5-6. Program Device from PSoC Creator

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 45

5.2 Using the Micrium® µC/Probe® Projects

The Micrium µC/Probe is a revolutionary software development tool that incorporates Micrium's pro­prietary Graphical Live Watch to graphically visualize the internals of any embedded system. With
the µC/Probe, you can test your embedded design effortlessly, with a few mouse clicks. Cypress
provides pre-designed µC/Probe project (workspace) files for CapSense and PWM code examples
associated with the CY8CKIT-042 kit. These projects can be found in the kit installation directory in
the following folder:

<Install_Directory>\Cypress\CY8CKIT-042 PSoC 4 Pioneer Kit\1.0\uCProbe

Refer to section 6.5 Using µC/Probe Tool on page 107 for more details on how to use the Micrium
µC/Probe. To learn more about the µC/Probe, visit: micrium.com/tools/ucprobe/overview.

Note: To use the µC/Probe with PSoC Creator 4.2, the '-gdwarf-3' command line parameter should
be added in the code example under Build Settings, as shown in Figure 5-7.

Figure 5-7. Project Settings – Compiler Command Line Parameter

Code Examples

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 46

5.3 Blinking LED

5.3.1 Project Description

This code example uses a pulse-width modulator (PWM) to illuminate the RGB LED. The PWM out­put is connected to pin P0_3 (blue) of the RGB LED. The frequency of blinking is set to 1 Hz with a
duty cycle of 50 percent. The blinking frequency and duty cycle can be varied by varying the period
and compare value respectively.

Note: The PSoC 4 Pioneer Kit is factory-programmed with this example.

Figure 5-8. PSoC Creator Schematic Design of Blinking LED Project

Code Examples

5.3.2 Hardware Connections

No specific hardware connections are required for this example because all connections are hard-

wired on the board. Open Blinking LED.cydwr in the Workspace Explorer and select the suitable pin.

Table 5-1. Pin Connection

Pin Name Port Name

Pin_BlueLED P0_3 (Blue)

Figure 5-9. Pin Selection for Blinking LED Project

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 47

5.3.3 Flow Chart

Figure 5-10 shows the flow chart of code implemented in main.c.

Figure 5-10. Blinking LED Code Example Flow Chart

5.3.4 Verify Output

Code Examples

Build and program the code example onto the device. Observe the frequency and duty cycle of the
blinking LED. Change the period and compare value in the PWM component, as shown in

Figure 5-11. Rebuild and reprogram the device to vary the frequency and duty cycle.

Figure 5-11. PWM Component Configuration Window

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 48

5.4 PWM

5.4.1 Project Description

This code example demonstrates the use of the PWM component. The project uses three PWM out­puts to set the color of RGB LED on the Pioneer Kit. The LED cycles through seven colors – violet >
indigo > blue > green > yellow > orange > red (VIBGYOR). Each color is maintained for a duration of
one second. The different colors are achieved by changing the pulse width of the PWMs.

Figure 5-12. PSoC Creator Schematic Design of PWM Code Example

Code Examples

5.4.2 Hardware Connections

No specific hardware connections are required for this code example because all connections are

hard-wired on the board. Open PWM.cydwr in the Workspace Explorer and select the suitable pins.

Table 5-2. Pin Connections

Pin Name Port Name

Pin_RedLED P1_6 (Red)

Pin_GreenLED P0_2 (Green)

Pin_BlueLED P0_3 (Blue)

Figure 5-13. Pin Selection for PWM Project

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 49

5.4.3 Flow Chart

Figure 5-14 shows the flow chart of code implemented in main.c.

Figure 5-14. PWM Code Example Flow Chart

Code Examples

5.4.4 Verify Output

Build and program the code example, and reset the device. Observe the RGB LED cycles through
the following color pattern:

violet > indigo > blue > green > yellow > orange > red (VIBGYOR)

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 50

5.5 Deep Sleep

5.5.1 Project Description

This code example demonstrates the low-power functionality of the PSoC 4. The LED is turned on
for one second to indicate Active mode; then, the device enters Deep-Sleep mode. When switch
SW2 is pressed, the device wakes up and the LED is turned on for one second and then goes back
into Deep-Sleep mode.

Figure 5-15. PSoC Creator Schematic Design of Deep-Sleep Project

Code Examples

5.5.2 Hardware Connections

No extra connections are required for the code example functionality because the connections are
hard-wired onto the board. To make low-power measurements using this project, refer to the use
case detailed in section 4.3.3.2 Procedure to Measure PSoC 4 Current Consumption on page 34.

Open Deep Sleep.cydwr in the Workspace Explorer and select the suitable pin.

Table 5-3. Pin Connection

Pin Name Port Name

Pin_RedLED P1_6 (Red)

Pin_WakeUpSwitch P0_7

Figure 5-16. Pin Selection for Deep-Sleep Project

Note that the Debug (SWD) port is disabled in the example to reduce power consumption during
Deep-Sleep power mode. The Debug port can be enabled by setting the Debug Select option to

SWD in the System tab of the .cydwr file, as shown in Figure 5-17. Disabling the debug port dis-

ables the ability to debug the code example through SWD.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 51

Figure 5-17. Enable Debug Select

Code Examples

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 52

5.5.3 Flow Chart

Start

Turn LED on

for one second

Enter Deep­Sleep mode

Interrupt on

SW2 press

Clear the

interrupt

Figure 5-18 shows the flow chart of code implemented in main.c.

Figure 5-18. Deep-Sleep Project Flow Chart

Code Examples

5.5.4 Verify Output

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 53

Build and program the code example, and reset the device. LED is on for one second and turns off,
which indicates that the device has entered Deep-Sleep mode. Press SW2 switch to wake up the
device from Deep-Sleep mode and enter Active mode. The device goes back to Deep-Sleep mode
after one second.

Note: When the device is in Deep-Sleep mode, the programmer must reacquire the device before
programming can start.

5.6 CapSense

This code example can be executed in two ways – with and without CapSense tuning. The same
project can be used to demonstrate the CapSense functionality as well as CapSense tuning using
the Tuner Helper GUI in PSoC Creator. This is done by commenting and uncommenting the line

#define ENABLE_TUNER in the main.c file of the code example. PSoC Creator does not compile
the code under the #ifdef (if defined) statement when the #define statement is commented (/
*…… */ or //). Similarly, when the #define statement is uncommented, the code required for work-

ing with Tuner GUI is compiled. By default, the project is set to work without CapSense tuning by
commenting the #define.

5.6.1 CapSense (Without Tuning)

5.6.1.1 Project Description

This code example demonstrates CapSense on PSoC 4. The example uses the five-segment
CapSense slider on the board. Each capacitive sensor on the slider is scanned using Cypress’s
CapSense Sigma Delta (CSD) algorithm implemented in the CapSense component. This project is
pre-tuned to take care of the board parasitics. For more information on the CapSense component
and CapSense tuning, see the CapSense component datasheet in PSoC Creator.

In this code example, the brightness of the green and red LEDs are varied, based on the position of
the user’s finger on the CapSense slider.

Code Examples

Figure 5-19. PSoC Creator Schematic Design of CapSense Code Example

Note: The EzI2C component is not used when tuning is disabled.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 54

5.6.1.2 Hardware Connections

No specific hardware connections are required for this code example because all connections are

hard-wired on the board. Open CapSense.cydwr in the Workspace Explorer and select the suitable

pins.

Table 5-4. Pin Connection

Pin Name Port Name

CapSense:Cmod P4_2

CapSense:Sns[0] P1_1

CapSense:Sns[1] P1_2

CapSense:Sns[2] P1_3

CapSense:Sns[3] P1_4

CapSense:Sns[4] P1_5

Pin_GreenLED P0_2 (Green)

Pin_RedLED P1_6 (Red)

EZI2C_1:scl P3_0 (SCL)

EZI2C_1:sda P3_1 (SDA)

Code Examples

Note: The I2C communication lines are not used when tuning is disabled.

Figure 5-20. Pin Selection for CapSense Code Example

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 55

5.6.1.3 Flow Chart

Figure 5-21 shows the flow chart of code implemented in main.c.

Figure 5-21. CapSense Project Flow Chart

Code Examples

5.6.1.4 Verify Output

The brightness of the green and red LEDs are varied based on the position of the user’s finger on
the CapSense slider. When the finger is on segment 5 (P1[5]) of the slider, the green LED is brighter
than the red LED; when the finger is on segment 1 (P1[1]) of the slider, the red LED is brighter than
the green LED.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 56

5.6.2 CapSense (With Tuning)

5.6.2.1 Project Description

This code example demonstrates CapSense tuning on PSoC 4 using the "Tuner" to monitor
CapSense outputs. The CapSense outputs such as rawcounts, baseline, and signal (difference
count) can be monitored on the Tuner GUI. The project uses the auto-tuning feature, which sets all
CapSense parameters to the optimum values automatically. The parameter settings can be moni­tored in the GUI but cannot be altered. In the manual tuning method, parameter settings can be
changed in the GUI and the resulting output can be seen.

The code example uses the five-segment CapSense slider on the board. Each capacitive sensor on
the slider is scanned using Cypress's CapSense Sigma Delta (CSD) algorithm implemented in the
CapSense component. The code uses tuner APIs. The tuner API CapSense_TunerComm() is used
in the main loop to scan sensors, which also sends the CapSense variables RawCounts, Baseline,
and Difference Counts (Signal) to the PC GUI through I2C communication.

In this example, the brightness of the green and red LEDs are varied, based on the position of the
user's finger on the CapSense slider.

See Figure 5-19 for the project schematic.

5.6.2.2 Hardware Connections

Code Examples

No specific hardware connections are required for this code example because all connections are

hard-wired on the board. Open CapSense.cydwr in the Workspace Explorer and select the suitable

pins.

See Ta bl e 5 -4 and Figure 5-20 for the CapSense project pin connections.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 57

5.6.2.3 Flow Chart

Start

Initialise and start the

PWM and CapSense

Tuner

Start Tuner

communication

Get the finger position on

the slider

Set the PWM output width to

adjust the brightness of the

RGB LED

Figure 5-22. CapSense with Tuning Flow Chart

Code Examples

5.6.2.4 Launching Tuner GUI

The Tuner GUI from PSoC Creator should be up and running for the code example to work. To
launch the GUI follow these steps:

1. Go to the project's TopDesign.cysch file.

Figure 5-23. Top Design File

2. To open the tuner, right-click on the CapSense_CSD component in PSoC Creator and click
Launch Tuner.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 58

Figure 5-24. Launch Tuner

Code Examples

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 59

3. The Tuner GUI opens. Click Configuration to open the configuration window.

Figure 5-25. Tuner GUI

Code Examples

4. Set the I2C communication parameters, as shown in the following figure.

Figure 5-26. I2C Communication

5. Click OK to apply the settings.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 60

5.6.2.5 Verify Output

1. To start the scanning and communication process, click Start.

Figure 5-27. Start Communication

Code Examples

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 61

Code Examples

2. Select a sensor in the Tuning tab. A red outline is seen on the selected sensor. Different
CapSense parameters are shown in Sensor Properties tab on the bottom-right. You cannot edit
the settings because auto-tuning is used in this project; auto-tuning automatically sets all the
parameters. Touch the selected sensor and observe the response in the tuner window.

Note: The board is designed according to layout guidelines for CapSense (best practices) for

1.5-mm overlay. Therefore, it is recommended that an overlay (not shipped with the kit) be used
while using the CapSense code example with tuning.

Figure 5-28. Sensor Tuning

3. In the Graphing tab, the CapSense results: Raw counts, Baseline, Signal (difference count) and
On/Off status for each sensor are represented as a graph. Click the Graphing Properties tab on
the bottom-right to select the slider element for which the CapSense results are to be shown in
the Graphing tab.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 62

Code Examples

4. Select the sensor parameters to observe, as shown in the following figure. The graph of the
selected parameters is shown.

Figure 5-29. Sensor Parameter Graph

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 63

5. Touch a sensor or slider element and see the increase in raw counts.

Figure 5-30. Raw Count Increase

Code Examples

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 64

6. Advanced Topics

6.1 Using PSoC 5LP as a USB-UART Bridge

The PSoC 5LP serves as a USB-UART bridge, which can communicate with the COM terminal
software. This section explains how to create a PSoC 4 code example to communicate with the
COM terminal software. This project is available with other code examples for the PSoC 4 Pioneer
Kit at the element14 webpage, 100 Projects in 100 days.

Users who have a Windows operating system that does not have HyperTerminal can use an
alternate terminal software such as PuTTY.

1. Create a new CY8CKIT-042 (PSoC 4200) Kit project in PSoC Creator, as shown in the following
figures. Select a specific location for your project and name the project as desired. You must
select the appropriate target hardware (kit) for this project. Ensure that the Select project tem-
plate option is set to ‘Empty schematic’. This example uses PSoC 4200 as the target device and
CY8CKIT-042 as the target board.

Figure 6-1. Select Project Type

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 65

Figure 6-2. Select Empty Schematic Option

Advanced Topics

Figure 6-3. Create Project

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 66

Advanced Topics

2. Drag and drop a UART (SCB) component to the top design.

Figure 6-4. UART Component Under Component Catalog

3. To configure the UART, double-click or right-click on the UART component and select Configure.

Figure 6-5. Open UART Configuration Window

4. Change the component name from UART_1 to UART.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 67

5. Configure the UART as shown in the following figures.

Figure 6-6. UART Configuration Window

Advanced Topics

Figure 6-7. UART Basic Configuration Window

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 68

Figure 6-8. UART Advanced Configuration Window

Advanced Topics

6. Click Apply and then OK to save the changes made to UART configuration.

7. Select P0[4] for UART RX and P0[5] for UART TX in the Pins tab of <Project.cydwr>.

Figure 6-9. Pin Selection

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 69

Advanced Topics

8. Place the following code in your main.c project file. The code will echo any UART data received.

int main()

{
uint8 ch;

/* Start SCB UART TX+RX operation */
UART_Start();

/* Transmit String through UART TX Line */

UART_UartPutString("CY8CKIT-042 USB-UART");

for(;;)
{
/* Get received character or zero if nothing has been received yet

*/

ch = UART_UartGetChar();

if(0u != ch)
{
/* Send the data through UART. This functions is blocking and waits until

there is an entry into the TX FIFO. */

UART_UartPutChar(ch);
}
}

}

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 70

Advanced Topics

PSoC 5LP PSoC 4

USB

Mini B

P0[4]

UART RX

P0[5]

UART TX

D+

D-

P15[6]

P15[7]

J8.10J8.9

P12[7]

UART TX

P12[6]

UART RX

9. Build the project by clicking Build > Build {Project Name} or [Shift] + [F6]. After the project is
built without errors and warnings, program (by clicking Debug > Program) the project to PSoC 4
through the PSoC 5LP USB programmer or MiniProg3.

Connect the RX line of the PSoC 4 to J8.10 and TX line of the PSoC 4 to J8.9, as shown in the
following figures.

Figure 6-10. UART Connection Between PSoC 4 and PSoC 5LP

Figure 6-11. Block Diagram of UART Connection Between PSoC 4 and PSoC 5LP

Note: UART RX and UART TX can be routed to any digital pin on PSoC 4 based on the configura­tion of the UART component. An SCB implementation of UART will route the RX and TX pins to
either one of the following subsets: (P0[4], P0[5]) or (P3[0],P3[1]) or (P4[0],P4[1]).

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Advanced Topics

To communicate with the PSoC 4 from the terminal software, follow this procedure:

1. Connect USB Mini B to J10. The kit enumerates as a KitProg USB-UART and is available under
the Device Manager, Ports (COM & LPT). A communication port is assigned to the
KitProg USB-UART.

Figure 6-12. KitProg USB-UART in Device Manager

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HyperTerminal

PuTTY

Advanced Topics

2. Open HyperTerminal and select File > New Connection and enter a name for the new connec­tion and click OK.

For PuTTY, double-click the putty icon and select Serial under Connection.

Figure 6-13. Open New Connection

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 73

HyperTerminal

PuTTY

Advanced Topics

3. A new window opens, where the communication port can be selected.

In HyperTerminal, select COMX (or the specific communication port that is assigned to KitProg
USB-UART) in Connect using and click OK.

In PuTTY enter the COMX in Serial line to connect to.

This code example uses COM12.

Figure 6-14. Select Communication Port

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 74

HyperTerminal

PuTTY

Advanced Topics

4. In HyperTerminal, select 'Bits per second', 'Data bits', 'Parity', 'Stop bits', and 'Flow control' under
Port Settings and click OK.

Make sure that the settings are identical to the UART settings configured for PSoC 4.

In PuTTY select 'Speed (baud)', 'Data bits', 'Stop bits', 'Parity' and 'Flow control' under Configure

the serial line. Click Session and select Serial under Connection type.

Serial line shows the communication port (COM12) and Speed shows the baud rate selected.

Click Open to start the communication.

Figure 6-15. Configure the Communication Port

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 75

Figure 6-16. Select Communication Type in PuTTY

Advanced Topics

5. Enable Echo typed characters locally under File > Properties > Settings > ASCII Setup, to
display the typed characters on HyperTerminal. In PuTTY, enable the Force on under Terminal >
Line discipline options to display the typed characters on the PuTTY.

Figure 6-17. Enabling Echo of Typed Characters in HyperTerminal

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Figure 6-18. Enabling Echo of Typed Characters in PuTTY

Advanced Topics

6. The COM terminal software displays both the typed data and the looped back data from the
PSoC 4 UART.

Figure 6-19. Data Displayed on HyperTerminal

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Figure 6-20. Data Displayed on PuTTY

Advanced Topics

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6.2 Using PSoC 5LP as USB-I2C Bridge

The PSoC 5LP serves as a USB-I2C bridge, which can be used to communicate with the USB-I2C
software running on the PC. This project is available with other code examples for the PSoC 4 Pio­neer Kit at the element14 webpage, 100 Projects in 100 days.

The following steps describe how to use the USB-I2C bridge, which can communicate between the
BCP and the PSoC 4.

1. Create a new CY8CKIT-042 (PSoC 4200) Kit project in PSoC Creator, as shown in the following
figures. Select a specific location for your project and name the project as desired. You must
select the appropriate target hardware (kit) for this project. Ensure that the Select project tem-
plate option is set to ‘Empty schematic’. This example uses PSoC 4200 as the target device and
CY8CKIT-042 as the target board.

Figure 6-21. Select Project Type

Advanced Topics

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 79

Figure 6-22. Select Empty Schematic Option

Advanced Topics

Figure 6-23. Create Project

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 80

2. Drag and drop an I2C component to the top design.

Figure 6-24. I2C Component in Component Catalog

Advanced Topics

3. To configure the I2C component, double-click or right-click on the I2C component and select
Configure.

Figure 6-25. Open I2C Configuration Window

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4. Change the component name from I2C_1 to I2C.

5. Configure the I2C with the following settings.

Figure 6-26. I2C Configuration Tab

Advanced Topics

Figure 6-27. I2C Basic Tab

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Figure 6-28. I2C Advanced Tab

Advanced Topics

6. Click Apply and then OK to save the changes.

7. Select pin P3[0] for the I2C SCL and pin P3[1] for the I2C SDA in the Pins tab of <poject.cydwr>.

Figure 6-29. Pin Selection

8. Place the following code in your main.c project file. The code will enable the PSoC 4 device to

transmit and receive I2C data to and from the BCP application.

int main()

{

uint8 wrBuf[10]; /* I2C write buffer */
uint8 rdBuf[10]; /* I2C read buffer */
uint8 indexCntr;
uint32 byteCnt;

/* Enable the Global Interrupt */

CyGlobalIntEnable;

/* Start I2C Slave operation */

I2C_Start();

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Advanced Topics

/* Initialize write buffer */

I2C_I2CSlaveInitWriteBuf((uint8 *) wrBuf, 10);

/* Initialize read buffer */

I2C_I2CSlaveInitReadBuf((uint8 *) rdBuf, 10);

for(;;) /* Loop forever */

{

/* Wait for I2C master to complete a write */

if(0u != (I2C_I2CSlaveStatus() & I2C_I2C_SSTAT_WR_CMPLT))

{

/* Read the number of bytes transferred */

byteCnt = I2C_I2CSlaveGetWriteBufSize();

/* Clear the write status bits*/

I2C_I2CSlaveClearWriteStatus();

/* Move the data written by the master to the read buffer so that the

master can read back the data */

for(indexCntr = 0; indexCntr < byteCnt; indexCntr++)

{

rdBuf [indexCntr] = wrBuf[indexCntr]; /* Loop back the data to the read

buffer */

}

/* Clear the write buffer pointer so that the next write operation will

start from index 0 */

I2C_I2CSlaveClearWriteBuf();

/* Clear the read buffer pointer so that the next read operations starts

from index 0 */

I2C_I2CSlaveClearReadBuf();

}

/* If the master has read the data , reset the read buffer pointer to 0

and clear the read status */

if(0u != (I2C_I2CSlaveStatus() & I2C_I2C_SSTAT_RD_CMPLT))

{

/* Clear the read buffer pointer so that the next read operations starts

from index 0 */

I2C_I2CSlaveClearReadBuf();

/* Clear the read status bits */

I2C_I2CSlaveClearReadStatus();

}

}

}

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Advanced Topics

6. Build the project by clicking Build > Build Project or [Shift]+[F6]. After the project is built without
errors and warnings, program ([Ctrl]+[F5]) this code onto the PSoC 4 through the PSoC 5LP pro­grammer or MiniProg3.

7. Open the BCP from Start > All Programs > Cypress > Bridge Control Panel <version num-
ber>.

8. Connect to KitProg/<serial_number> under Connected I2C/SPI/RX8 Ports.

Figure 6-30. Connecting to KitProg/<serial_number> in BCP

9. Open Protocol Configuration from the Too ls menu and select the appropriate I2C Speed.
Make sure the I2C speed is the same as the one configured in the I2C component. Click OK to
close the window.

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Advanced Topics

Figure 6-31. Opening Protocol Configuration Window in BCP

10.From the BCP, transfer five bytes of data to the I2C device with slave address 0x08. The log
shows whether the transaction was successful. A '+' indication after each byte indicates that the
transaction was successful and a '–' indicates that the transaction was a failure.

Figure 6-32. Entering Commands in BCP

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 86

Figure 6-33. NACK Indication in BCP

Advanced Topics

11. From the BCP, read five bytes of data from the I2C slave device with slave address 0x08. The log
shows whether the transaction was successful.

Figure 6-34. Read Data Bytes from the BCP

Note: Refer Help Contents under Help in BCP or press [F1] for details of I2C commands.

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6.3 Developing Applications for PSoC 5LP

PSoC 5LP

Mini USB (J10)

PSoC 5LP
I/O Header

(J8)

10-pin SWD

programming

and debugging

header

(J7)

D+

D-

P15_6

P15_7

XRES

SWDIO

SWDCLK

SWO

TDI

XRES

P1_0

P1_1

P1_ 3

P1_4

J8_2

J8_4

J8_3

J8_5

J8_8

J8_7

J8_6

J8_9

J8_10

J8_12

P1_2 P0_0

P0_1 P3_4 P3_5 P3_6 P3_7

P12_6

P12_7

P3_0

The PSoC 4 Pioneer Kit has an onboard PSoC 5LP whose primary function is that of a programmer
and a bridge. You can build either a normal project or a bootloadable project using the PSoC 5LP.

The PSoC 5LP connections in the Pioneer board are summarized in Figure 6-35. J8 is the I/O con­nector (see section 4.3.7 PSoC 5LP GPIO Header (J8)). The USB (J10) is connected and used as
the PC interface. But you can still use this USB connection to create customized USB designs.

The programming header (J7) is meant for standalone programming. This header needs to be
populated. See the 'No Load Components' section in A.6 Bill of Materials (BOM) on page 125.

Figure 6-35. PSoC 5LP Block Diagram

Advanced Topics

6.3.1 Building a Bootloadable Project for PSoC 5LP

All bootloadable applications developed for the PSoC 5LP should be based on the bootloader hex
file, which is programmed onto the kit. The bootloader hex file is available in the kit files or can be
downloaded from the kit webpage.

The hex files are included in the following kit installer directory:

<Install_Directory>\CY8CKIT-042 PSoC 4 Pioneer Kit\

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<version>\Firmware\Programmer\KitProg_Bootloader

Figure 6-36. KitProg Bootloader Hex File Location

Advanced Topics

To build a bootloadable application for the PSoC 5LP, follow this procedure:

1. In PSoC Creator, choose File > New > Project and select Target Device; select <Launch
Device Selector...> from the drop-down list, as shown in Figure 6-37.

Figure 6-37. Opening New Project in PSoC Creator

2. Select CY8C5868LTI-LP039, as shown in Figure 6-38. Click OK; then, click Next.

Note: In PSoC Creator 3.1 or earlier, you must either set the Application Type as Bootloadable
in the New Project window under the Advanced section, or you can change it after project
creation by selecting Project > Build Settings and clicking <Project Name> > Application
Type > Bootloadable. Beginning with PSoC Creator 3.2, the Application Type option is
removed from the New Project window and the Build Settings menu. PSoC Creator 3.2 and later
versions automatically recognize the application type from the TopDesign schematic.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 89

Figure 6-38. Selecting Device in PSoC Creator

Advanced Topics

3. Choose Empty schematic in the Select project template dialog, as shown in Figure 6-39. Click
Next.

Figure 6-39. Choose Empty Schematic

4. In the Create Project dialog, choose the workspace name, location, and project name
(Figure 6-40). Click Finish.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 90

Figure 6-40. Create Project Dialog

Advanced Topics

5. Navigate to the Schematic view and drag and drop a bootloadable component on the top design.

Figure 6-41. Bootloadable Component in Component Catalog

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Advanced Topics

Set the dependency of the Bootloadable component by selecting the Dependencies tab in the

configuration window and clicking the Browse button. Select the KitProg_Bootloader.hex and
KitProg_Bootloader.elf files; click Open.

Figure 6-42. Configuration Window of Bootloadable Component

Figure 6-43. Selecting KitProg Bootloader Hex File

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 92

Figure 6-44. Selecting KitProg Bootloader File

Advanced Topics

3. In the General tab, check the Manual application image placement checkbox and set the
Placement address as “0x00002800” as shown in Figure 6-45.

Figure 6-45. Bootloadable Component-General Tab

4. Develop your custom project.

5. The NVL setting of the Bootloadable project and the KitProg_Bootloader project must be the

same. The KitProg_Bootloader.cydwr system settings is shown in the following figure.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 93

Figure 6-46. KitProg Bootloader System Settings

6. Build the project in PSoC Creator by selecting Build > Build Project or [Shift]+[F6].

7. To download the project on to the PSoC 5LP device, open the Bootloader Host Tool, which is
available from PSoC Creator. Select Tools > Bootloader Host.

Advanced Topics

Figure 6-47. Opening Bootloader Host Tool from PSoC Creator

8. Keep the reset switch (SW1) pressed and plug in the USB Mini-B connector. If the switch is
pressed for more than 100 ms, the PSoC 5LP enters into bootloader. The PSoC 5LP also enters
into bootloader when the power supply jumper for the PSoC 4 (J13) is removed and
subsequently the USB Mini-B connector is plugged into header J10.

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Advanced Topics

9. In the Bootloader Host tool, click Filters and add a filter to identify the USB device. Set VID as
0x04B4, PID as 0xF13B, and click OK.

Figure 6-48. Port Filters Tab in Bootloader Host Tool

10.In the Bootloader Host tool, click the Open File button to browse to the location of the bootload­able file (*.cyacd).

Figure 6-49. Opening Bootloadable File from Bootloader Host Tool

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11. Press the Program button in the Bootloader Host tool to program the device.

Figure 6-50. Selecting Bootloadable.cyacd File from Bootloader Host

Advanced Topics

12.If bootload is successful, the log of the tool displays "Successful"; otherwise, it displays "Failed"
and a statement for the failure.

Notes:

1. The PSoC 5LP pins are brought to the PSoC 5LP GPIO header (J8). These pins are selected to
support high-performance analog and digital projects. See A.2 Pin Assignment Table on

page 120 for pin information.

2. Take care when allocating the PSoC 5LP pins for custom applications. For example, P2[0]–P2[4]
are dedicated for programming the PSoC 4. Refer to A.1 CY8CKIT-042 Schematics on page 116
before allocating the pins.

3. When a normal project is programmed onto the PSoC 5LP, the initial capability of the PSoC 5LP
to act as a programmer, USB-UART bridge, or USB-I2C bridge in not available.

4. The status LED does not function unless used by the custom project.

For additional information on bootloaders, refer to Cypress application note, AN73503 - PSoC

®

USB

HID Bootloader.

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6.3.2 Building a Normal Project for PSoC 5LP

A normal project is a completely new project created for the PSoC 5LP device on the CY8CKIT-042.
Here the entire flash of the PSoC 5LP is programmed, overwriting all bootloader and programming

code. To recover the programmer, reprogram the PSoC 5LP device with the factory-set KitProg.hex

file, which is shipped with the kit installer.

The KitProg.hex file is available at the following location:

<Install_Directory>\CY8CKIT-042 PSoC 4 Pioneer Kit\<version>\Firm­ware\Programmer\KitProg

This advanced functionality requires a MiniProg3 programmer, which is not included with this kit. The
MiniProg3 can be purchased from www.cypress.com/CY8CKIT-002.

To build a normal project for the PSoC 5LP, follow these steps:

1. In PSoC Creator, choose File > New > Project and select Target device; select <Launch
Device Selector...> from the drop-down list as shown in Figure 6-51.

Figure 6-51. Opening New Project in PSoC Creator

Advanced Topics

2. Select CY8C5868LTI-LP039, as shown in Figure 6-52. Click OK and click Next.

CY8CKIT-042 PSoC® 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *I 97

Figure 6-52. Select Device

Advanced Topics

3. Choose Empty schematic in the Select project template dialog, as shown in Figure 6-53. Click
Next.

Figure 6-53. Choose Empty Schematic

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Advanced Topics

4. In the Create Project dialog, choose the workspace name, location, and project name
(Figure 6-54). Click Finish.

Figure 6-54. Create Project Dialog

5. Develop your custom project.

6. Build the project in PSoC Creator by selecting Build > Build Project or [Shift]+[F6].

7. Connect the 10-pin connector of MiniProg3 to the onboard 10-pin SWD debug and programming
header J7 (which needs to be populated).

8. To program the PSoC 5LP with PSoC Creator, click Debug > Program or [Ctrl]+[F5]. The Pro-
gramming window shows MiniProg3 and the selected device in the project under it
(CY8C5868LTI-LP039).

9. Click on the device and click Connect to program.

Notes:

1. The 10-pin SWD debug and programming header (J7) is not populated. See the 'No Load Com­ponents' section of A.6 Bill of Materials (BOM) for details.

2. The PSoC 5LP pins are brought to the PSoC 5LP GPIO header (J8). These pins are selected to
support high-performance analog and digital projects. See A.2 Pin Assignment Table for pin infor-
mation.

3. Take care when allocating the PSoC 5LP pins for custom applications. For example, P2[0]–P2[4]
are dedicated for programming the PSoC 4. Refer to A.1 CY8CKIT-042 Schematics before allo-
cating the pins.

4. When a normal project is programmed onto the PSoC 5LP, the initial capability of the PSoC 5LP
to act as a programmer, USB-UART bridge, or USB-I2C bridge in not available.

5. The status LED does not function unless used by the custom project.

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6.4 PSoC 5LP Factory Program Restore Instructions

The CY8CKIT-042 PSoC 4 Pioneer Kit features a PSoC 5LP device that comes factory-programmed
as the onboard programmer and debugger for the PSoC 4 device.

In addition to creating applications for the PSoC 4 device, you can also create custom applications
for the PSoC 5LP device on this kit. For details, see section 6.3 Developing Applications for PSoC

5LP on page 88. Reprogramming or bootloading the PSoC 5LP device with a new flash image will

overwrite the factory program and forfeit the ability to use the PSoC 5LP device as a programmer/
debugger for the PSoC 4 device. Follow the instructions to restore the factory program on the PSoC
5LP and enable the programmer/debugger functionality.

6.4.1 PSoC 5LP is Programmed with a Bootloadable Application

If the PSoC 5LP is programmed with a bootloadable application, restore the factory program by
using one of the following two methods.

6.4.1.1 Restore PSoC 5LP Factory Program Using PSoC Programmer

1. Launch PSoC Programmer 3.27.1 or later from Start > Cypress > PSoC Programmer.

2. Configure the Pioneer Kit in Service Mode. To do this, while holding down the reset button (SW1
Reset), plug in the PSoC 4 Pioneer Kit to the computer using the included USB cable (USB A to
mini-B). This puts the PSoC 5LP into service mode, which is indicated by the blinking green sta­tus LED.

Advanced Topics

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