Cypress PSoC FirstTouch CY3270 Manuale utente

CY3270

PSoC® FirstTouch™ Guide

Document # 001-15945 Rev. **

Cypress Semiconductor

198 Champion Court

San Jose, CA 95134-1709

Phone (USA): 800.858.1810

Phone (Intnl): 408.943.2600

http://www.cypress.com

2 CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **

Copyrights

Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress

product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor

intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express

written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-

support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The

inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use

and in doing so indemnifies Cypress against all charges.

PSoC Designer™, Programmable System-on-Chip™, and PSoC Express™ are trademarks and PSoC® is a registered

trademark of Cypress Semiconductor Corp. All other trademarks or registered trademarks referenced herein are property of

the respective corporations.

Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by

and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty

provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create

derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom soft-

ware and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as speci-

fied in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source

Code except as specified above is prohibited without the express written permission of Cypress.

Disclaimer

CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PAR-

TICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein.

Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress

does not authorize its products for use as critical components in life-support systems where a malfunction or failure may rea-

sonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems appli-

cation implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. ** 3

Contents

1. Introduction 5

1.1 Document History ........................................................................................................6

1.2 Document Conventions ...............................................................................................6

2. Getting Started 7

2.1 Install Hardware and Run the CapSense Touch Sensing Design...............................7

2.2 Install Software ............................................................................................................7

2.3 Run the Temperature, Light, and CapSense Proximity Sensing Designs ...................7

2.4 FTMF Expansion Card Demonstrations ......................................................................8

2.4.1 CapSense Touch Sensing Demonstration (default).........................................9

2.4.2 Temperature Sensing Demonstration.............................................................10

2.4.3 Light Sensing Demonstration.........................................................................11

2.4.4 CapSense Proximity Sensing Demonstration................................................12

2.5 Exploring the FTMF Expansion Card Demonstration Projects ..................................13

2.5.1 Opening a Demonstration Project..................................................................13

2.5.2 Modifying the New Project .............................................................................13

2.5.3 Simulating the Project....................................................................................14

2.5.4 Building the New Project................................................................................14

2.5.4.1 Selecting the Target Device.............................................................14

2.5.4.2 Specifying the Target Device Pinout................................................14

2.5.5 Programming the Project ...............................................................................14

2.5.6 Verifying the Results ......................................................................................15

2.5.7 Understanding the Results.............................................................................15

2.5.8 Important Things to Remember .....................................................................15

3. Technical Reference 17

3.1 FTPC Bridge Details..................................................................................................17

3.2 Expansion Card Overview .........................................................................................19

3.3 Expansion Card Details .............................................................................................19

3.3.1 FirstTouch MultiFunction Expansion (FTMF) Card.........................................19

4 CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **

Contents

CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. ** 5

1. Introduction

The PSoC® FirstTouch™ Kit includes a USB interface dongle, referred to as the FTPC bridge, and a

multifunction expansion card, referred to as the FTMF Expansion Card. The FTMF Expansion Card

demonstrates a variety of applications using ‘PSoC Powered Peripherals’. The FTMF Expansion

Card connects to the bridge through the bridge’s built-in 8x2 pin expansion port. As the name

implies, the FTPC bridge forms the connection between the FTMF Expansion Card and the various

PC applications that control and communicate with the FTMF Expansion Card.

The FTPC bridge portion of the kit contains a programmed Cypress CY8C24894 PSoC that per-

forms all of the USB and expansion card interface functions. The firmware that is run by this PSoC

performs the primary functions listed.

■Functions as a USB physical and logical interface

■Provides PSoC MiniProg emulation for In System Serial Programming (ISSP™) of the expansion

cards

■Provides communications with the PSoC programming utility

■Performs HID data channel communications

■Performs expansion card I2C™ communications

■Performs expansion card SPI communications

There are no other active components inside of the FTPC bridge. All of these interfaces run on a sin-

gle PSoC device. Future projects for the FirstTouch Kit allow you to modify the FTPC firmware and

try some USB Interface designs of your own.

The FirstTouch expansion card connects to the FTPC bridge through the bridge’s 8x2 pin expansion

port. This expansion port provides all of the necessary signals to program the host PSoC on the

expansion card. The expansion port also provides power, ground, and I2C or SPI communications to

and from the expansion card host PSoC and PC.

Since the FirstTouch expansion card has a dedicated host PSoC, once programmed with your

design, the expansion cards can operate either detached from the FTPC bridge in standalone mode

or connected to your system hardware. Obviously, it is necessary to provide power and ground for

the expansion card to operate in either of these two arrangements.

There are four unused analog or digital GPIO pins on the FTPC port and four unused analog or digi-

tal GPIO pins on the expansion card. This allows you to create custom designs and connect signals

you want to the FTPC bridge or the FirstTouch expansion cards.

6 CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **

Introduction

1.1 Document History

This section serves as a chronicle of the CY3270 PSoC FirstTouch Guide.

1.2 Document Conventions

This guide uses the Courier New font to distinguish file location and source code examples from

regular text. File names are presented in italics text. Keyboard commands are bolded.

CY3270 PSoC FirstTouch Guide History

Release

Date Firmware

Revision Guide

Version Originator Description of Change

08/15/07 See Note a** ARI This guide is a new document.

aPSoC Express 3.0 generates the firmware.

CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. ** 7

2. Getting Started

2.1 Install Hardware and Run the CapSense Touch Sensing Design

To install the kit hardware and run the CapSense touch sensing design, do as follows:

1. Remove both end caps from the FTPC Bridge and then connect the FTMF Expansion Card into

the header of the FTPC Bridge such that ‘Cypress Perform’ is visible on both boards. Insert the

assembled kit into your computer USB port. Note Leave the “Found New Hardware Wizard” win-

dow open for driver installation in section 2.2 Install Software, step #3.

2. Slide finger along the CapSense Touch Sensing slider found on the furthest point away from your

computer. Notice the LED variation based on the position of your finger on the slider. This is the

CapSense Touch Sensing Design working right out of the box.

2.2 Install Software

To install the software, proceed as follows:

1. Insert the FirstTouch Kit CD-ROM into your computer. The CD is designed to ‘Auto Run’ and the

PSoC Express installation menu should appear. Alternatively, you can double click on the Auto-

run.exe file in the root directory of the CD-ROM to get the installation menu.

2. From the CY3270 installation menu, select Install PSoC Programmer. When that is complete,

select Install PSoC Express. When that is complete, select Install .NET Framework, and then

select Express Pack 1 for PSoC Express in that order (You can also find the latest software ver-

sions at www.cypress.com/FirstTouch). For each installation, follow the instructions issued by the

installation wizard. To copy the kit documents to your computer, select Install FirstTouch kit

documentation. This copies the documents to the C:\Cypress\CY3270 directory.

3. Once the software installations are complete, click Exit in the PSoC Express Installation Menu.

4. In the “Found New Hardware Wizard” window, select No, not this time. In the second “Found

New Hardware Wizard” window, select Install the software automatically. Alternatively, direct

the New Hardware wizard to \..\Program Files\Cypress MicroSystems\PSoC Pro-

grammer\drivers\ on your computer. If prompted with a 'Driver Verification' message, click

Continue Anyway.

2.3 Run the Temperature, Light, and CapSense Proximity Sensing

Designs

To run the temperature, light, and CapSense proximity sensing designs do as follows:

1. Launch PSoC Express.

2. From the Express Design Catalog, expand the ‘CY3270-PSoC FirstTouch Kit’ folder, and double

click on one of the projects and re-name it.

3. From the top menu bar, click Build and then select Generate/Build {your project name}

Project. Click Next in the following two screens.

8 CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **

Getting Started

4. From the top menu bar, click Program and then select Programmer. Within the Programmer

window, select Port > FirstTouch and Programming Mode button to Reset. Then, click the Pro-

gram button.

5. Once programming completes successfully, verify the project operation by doing as follows:

a. Temperature Sensing–the LED color varies based on changes in the ambient temperature

(the buzzer sounds at extreme temperatures).

b. Light Sensing–the LED intensity varies based on changes in the ambient light.

c. CapSense Proximity Sensing–the LED color varies based on your hand’s proximity to the

board.

2.4 FTMF Expansion Card Demonstrations

The FTMF Expansion Card provided in your kit is capable of supporting a variety of demonstrations.

Each demonstration has an associated PSoC Express project and data sheet that describes the

operation and usage of each of the demonstrations in detail. Since the FTMF expansion card has its

own PSoC, you can remove it from the FTPC bridge and insert it into your target hardware or other

development platform. In order to observe each of the various FTMF demonstrations, it is necessary

to reprogram the FTMF card with the appropriate demonstration firmware. For more details refer to

the Technical Reference chapter on page 17.

Figure 2-1. FTMF Expansion Card

LED Display

Light Sensor

CapSense

Slider

Temperature

Sensor

Proximity

Antenna Buzzer

CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. ** 9

Getting Started

2.4.1 CapSense Touch Sensing Demonstration (default)

The pre-programmed CapSense Touch Sensing demonstration shows how to use the CapSense

Touch Sensing slider to control LED color. Run your finger across the CapSense Touch Sensing

slider (see Figure 2-1) and notice how the color of the LED color changes. The CY8C21434 PSoC

that resides on the FTMF Expansion Card detects your finger’s position on the CapSense Touch

Sensing slider and controls the LEDs output.

Figure 2-2. CapSense Touch Sensing Demo Schematic

10 CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **

Getting Started

2.4.2 Temperature Sensing Demonstration

The temperature sensing demonstration shows how to use a temperature sensor to control LED

color. Follow the CapSense Touch Sensing based guidelines in section 2.5 Exploring the FTMF

Expansion Card Demonstration Projects to simulate, build, and program the FTMF Expansion Board

with the temperature sensing demonstration. Touch the temperature sensor (see Figure 2-1) and

notice how the LED color changes. Removing your finger leads to the LED color slowly reverting

back to its initial state. The CY8C21434 PSoC that resides on the FTMF Expansion Card detects the

temperature and controls the LEDs output.

Figure 2-3. Temperature Sensing Demo Schematic

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