Microchip Technology DM182017-1, DM182017-2, DM182017-3 User Manual

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Wireless Security Remote Control

Development Kit

User’s Guide

 2012 Microchip Technology Inc. DS41646A

Note the following details of the code protection feature on Microchip devices:

YSTEM

CERTIFIED BY DNV

== ISO/TS 16949 ==

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC, K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

PIC

logo, rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their respective companies.

Printed on recycled paper.

QUALITY MANAGEMENT S

DS41646A-page 2  2012 Microchip Technology Inc.

ISBN: 9781620764145

Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and T empe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC devices, Serial EEPROMs, microperipherals, nonvolatile memo ry and analog products. In addition, Microchip’s quality system for the desig n and manufacture of development systems is ISO 9001:2000 certified.

MCUs and dsPIC® DSCs, KEELOQ

code hopping

Object of Declaration: Wireless Security Remote Control Development Kit

 2012 Microchip Technology Inc. DS41646A-page 3

Wireless Security Remote Control Development Kit User’s Guide

NOTES:

DS41646A-page 4  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 7

Chapter 1. Overview

1.1 Introduction ................................................................................................... 13

1.2 Wireless Security Remote Control Development Kit Contents ..................... 13

1.3 Getting Started ............................................................................................. 13

Chapter 2. Getting Started

2.1 Introduction ................................................................................................... 15

2.2 Hardware Requirements .............................................................................. 15

2.3 Software Requirements ................................................................................ 15

2.4 Demo Setup ................................................................................................. 15

2.5 Demo Operation ........................................................................................... 16

2.6 Embedded Security Development Board Hardware Self-Check .................. 19

Chapter 3. PIC12LF1840T39A Wireless Remote Key Fob

3.1 Introduction ................................................................................................... 21

3.2 Hardware Description ................................................................................... 21

3.3 Printed Circuit Board Description ................................................................. 21

3.4 PCB Antenna Description ............................................................................. 22

Chapter 4. SX1239 Receiver PICtail™ Daughter Board

4.1 Introduction ................................................................................................... 25

4.2 Hardware Description ................................................................................... 25

Chapter 5. Embedded Security Development Board

5.1 Introduction ................................................................................................... 27

5.2 Hardware Description ................................................................................... 28

Chapter 6. Developing with the Wireless Security Remote Control Development Kit

6.1 Introduction ................................................................................................... 31

6.2 Developing with a Key Fob as Transmitter .................................................. 31

6.3 Developing with the Embedded Security Development Board as Receiver . 32

Appendix A. PIC12LF1840T39A Wireless Remote Key Fob Schematics Appendix B. SX1239 Receiver PICtail™ Daughter Board Schematics Appendix C. Embedded Security Development Board Schematics

Worldwide Sales and Service ....................................................................................50

 2012 Microchip Technology Inc. DS41646A-page 5

Wireless Security Remote Control Development Kit User’s Guide

NOTES:

DS41646A-page 6  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.

For the most up-to-date information on development tools, see the MPLAB Select the Help menu, and then Topics to open a list of available online help files.

IDE online help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the Wireless Security Remote Control Development Kit User’s Guide. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Warranty Registration

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Revision History

DOCUMENT LAYOUT

This document describes how to use the Wireless Security Remote Control Development Kit (WSRCDK) to evaluate and experiment with Microchip K Entry (RKE) solutions. The main layout is as follows:

• Chapter 1. “Overview” – This chapter describes the WSRCDK and how it works.

• Chapter 2. “Get ti ng Started” – This chapter describes the procedures to

demonstrate Microchip K

• Chapter 3. “PIC12LF1840T39A Wireless Remote Key Fob” – This chapter

provides the hardware details of the wireless key fob.

• Chapter 4. “SX1239 Receiver PICtail™ Daughter Board” – This chapter

provides the hardware details of the Receiver PICtail Daughter Board.

• Chapter 5. “Embedded Security Development Board” – This chapter provides

the hardware details of the Embedded Security Development Board.

EELOQ

EELOQ RKE solution on WSRCDK.

Remote Keyless

 2012 Microchip Technology Inc. DS41646A-page 7

Wireless Security Remote Control Development Kit User’s Guide

• Chapter 6. “Developing with the Wireless Security Remote Control

Development Kit” – This chapter provides suggestions on the development based

on Microchip RKE solution.

• Appendix A. “PIC12LF1840T39A Wireless Remote Key Fob Schematics” –

This appendix provides the PCB layout, BOM and schematics.

• Appendix B. “SX1239 Receiver PICtail™ Daughter Board Schematics” – This

appendix provides the PCB layout, BOM and schematics.

• Appendix C. “Embedded Security Development Board Schematics” – This

appendix provides the PCB layout, BOM and schematics.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe character: { | }

Ellipses... Replaces repeated text var_name [,

A menu path File>Save

A tab Click the Power tab

where N is the total number of digits, R is the radix and n is a digit.

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’

Choice of mutually exclusive arguments; an OR selection

Represents code supplied by user

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options] errorlevel {0|1}

var_name...] void main (void)

{ ... }

IDE User’s Guide

DS41646A-page 8  2012 Microchip Technology Inc.

WARRANTY REGISTRATION

Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in the Warranty Registration Card entitles users to receive new product updates. Interim software releases are available at the Microchip web site.

Chapter 1. Overview

1.1 INTRODUCTION

The Wireless Security Remote Control Development Kit is a demonstration and development platform for wireless security remote control applications. The kit demos two security protocols, K

The kit contains a four-button key fob transmitter based on the PIC12LF1840T39A, SX1239 Receiver PICtail™ Daughter Board, and the Embedded Security Development Board. The kits can be purchased in one of three transmit frequencies. See the next section for ordering part numbers.

• Wireless Security Remote Control Development Kit Contents

• Getting Started

1.2 WIRELESS SECURITY REMOTE CONTROL DEVELOPMENT KIT CONTENTS

The Wireless Security Remote Control Development Kits have three frequency choices:

• Wireless Security Remote Control Development Kit – 433.92 MHz (DM182017-1)

• Wireless Security Remote Control Development Kit – 868 MHz (DM182017-2)

• Wireless Security Remote Control Development Kit – 915 MHz (DM182017-3)

Each kit contains:

• PIC12LF1840T39A Wireless Remote Key Fob (

Wireless Remote Key Fob”

• SX1239 Receiver PICtail Daughter Board (

Daughter Board”

• Embedded Security Development Board (

Development Board”

• USB Cable

• CR2032 Coin Cell Battery

Appendix B

EELOQ

Classic and KEELOQ® AES.

Appendix A

Appendix C

Chapter 3. “PIC12LF1840T39A

)

Chapter 4. “SX1239 Receiver PICtail™

)

Chapter 5. “Embedded Security

)

1.3 GETTING STARTED

Chapter 2. “Get ti ng Started” provides a getting started tutorial to familiarize users

with the Wireless Security Remote Control Development Kit.

 2012 Microchip Technology Inc. DS41646A-page 13

Wireless Security Remote Control Development Kit User’s Guide

NOTES:

DS41646A-page 14  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Chapter 2. Getting Started

2.1 INTRODUCTION

This chapter provides a getting started tutorial to familiarize users with the Wireless Security Remote Control Development Kit.

The following topics are discussed in this chapter:

• Hardware Requirements

• Software Requirements

•Demo Setup

• Demo Operation

2.2 HARDWARE REQUIREMENTS

The following hardware is required to run the pre-programmed demo application:

• PIC12LF1840T39A Wireless Remote Key Fob

• SX1239 Receiver PICtail™ Daughter Board

• Embedded Security Development Board

• USB A to Mini-B Cable (to power the Embedded Security Development Board or

power can also be provided by a bench power supply)

2.3 SOFTWARE REQUIREMENTS

The PIC12LF1840T39A Key Fob and Embedded Security Development Board are pre-programmed with a remote control demo program. The demo setup and operation are explained in the following sections.

The source code for the demo is available from the Wireless Security Remote Control Development Kit product web page at http://www.microchip.com/security

2.4 DEMO SETUP

This section describes how to set up the kit contents to operate the remote control demo program.

1. Obtain a CR2032 coin battery (if not included in the development kit)

2. Open the plastic enclosure of the red key fob by carefully prying apart the two

halves. Remove the PCB board from the plastic enclosure carefully. Observe the correct battery polarity and insert the CR2032 coin battery into the battery holder. Put the PCB board back in the plastic enclosure and close the enclosure.

3. To verify that the key fob is properly installed, press any button and the LED

should be flashing when the button is pressed.

4. Plug in the RF receiver daughter board on the PICtail slot of the Embedded

Security Development Board. Make sure that the RF receiver daughter board has the side with RF receiver chip face the center, as shown in Figure 2-1.

 2012 Microchip Technology Inc. DS41646A-page 15

Wireless Security Remote Control Development Kit User’s Guide

FIGURE 2-1: PLUG THE SX1239 RECEIVER PICtail™ DAUGHTER CARD

INTO THE EMBEDDED SECURITY DEVELOPMENT BOARD

5. Power-up the Embedded Security Development Board.

To power the Embedded Security Development Board from the USB port, connect the USB A to mini-B cable to the development board and an available USB port or USB power source. Set jumper J6 to pins 1-2. When using a USB port for power, there is no requirement to load the USB drivers.

To power the Embedded Security Development Board from an external power supply, connect test points labeled +V Place jumper J6 to pins 2-3.

EXT and GND to a bench power supply set to 3.3 VDC.

2.5 DEMO OPERATION

The pre-programmed demo is used to demonstrate the basic operation of Microchip Remote Keyless Entry (RKE) solutions. The demo highlights capabilities of transmitting and receiving data that is secured over the air. Two different methods, K and K

EELOQ

2.5.1 Key Fob as Transmitter

The pre-programmed demonstration shows how to secure information during data transmission. Pressing any one of four buttons on the red key fob, the information about the pressed button will be encrypted and transmitted. When data is being transmitted, the LED on the key fob will flash. Two ways to secure the information have been shown in this demo: K

Figure 2-2) is pressed, the information is secured with K

transmission; when button 3 or 4 (see Figure 2-2) is pressed, the information is secured with K

EELOQ AES before the transmission.

For details on K

notes AN1259, “K “K

The key fob has four push buttons and is powered by a CR2032 coin battery. The key fob is shown in Figure 2-2, where the four buttons are labeled individually.

EELOQ

with AES Microcontroller-Based Code Hopping Encoder”.

AES, are used in this demo.

EELOQ Classic and KEELOQ AES. When button 1 or 2 (see

EELOQ Classic before the

EELOQ Classic and KEELOQ AES, please refer to Microchip application

EELOQ

Microcontroller-Based Code Hopping Encoder” and AN1265

EELOQ

Classic

DS41646A-page 16  2012 Microchip Technology Inc.

Getting Started

TopButton

LeftButton

1

RightButton

BottomButton

LED

FIGURE 2-2: KEY FOB WITH FOUR PUSH BUTTONS

2.5.2 Embedded Security Development Board as Receiver

When the SX1239 Receiver PICtail Daughter Board receives a secured packet, the content of the packet is acquired by the target application microcontroller. Based on the length of the received packet, the target application microcontroller decides the cipher (K

EELOQ Classic or KEELOQ AES) that is used to secure the data. The decryption

process reveals the plain text, and the authentication process verifies whether the plain text is valid information.

2.5.2.1 K

For K

EELOQ CLASSIC

EELOQ Classic, only a message from a known transmitter can be accepted by the

receiver. If a packet is received from an unknown transmitter, the message “KLQ

Transmitter Not Learned” will be displayed on the LCD, as shown in Figure 2-3.

FIGURE 2-3: ERROR MESSAGE OF RECEIVING PACKET FROM

UNKNOWN TRANSMITTER

To learn a transmitter, the receiver initiates the learning process by pressing button

SW4. The learning procedure will be started and the message “Learn mode active”

will be displayed on the LCD, as shown in Figure 2-4.

FIGURE 2-4: START LEARN MODE

 2012 Microchip Technology Inc. DS41646A-page 17

Wireless Security Remote Control Development Kit User’s Guide

In the event no KEELOQ Classic packet from an unknown transmitter is received within 18 seconds, the K

“Learn mode timeout” on the LCD, as shown in Figure 2-5.

FIGURE 2-5: LEARN MODE TIMEOUT

The known transmitters and their latest counters are stored in the Nonvolatile Memory (NVM) space of the microcontroller. When all slots in the NVM space for transmitters are taken, the learning process will fail. Pressing and holding button SW3 for a few seconds will erase all transmitter records from the NVM, and then the display message

“Memory Erased” on the LCD, as shown in Figure 2-6.

FIGURE 2-6: ERASE TRANSMITTER RECORDS FROM MEMORY

EELOQ Classic learn mode will time out and display the message

When a K the packet is displayed on the LCD, as shown in Figure 2-7. The following information from the K

• Encoder: KLQ that represents K

• Serial number of the transmitter: 28-bit serial number (according to Figure 2-7) in

this transmission

• Counter: 16-bit number (according to Figure 2-7) in this transmission

• Function Code: A bitmap of the pressed buttons (it will be 3 if both KLQ buttons are pressed), depending on the button pressed on the key fob

FIGURE 2-7: K

EELOQ Classic packet is received from a known transmitter, the contents of

EELOQ Classic packet are available:

EELOQ Classic

EELOQ PACKET INFORMATION

DS41646A-page 18  2012 Microchip Technology Inc.

Getting Started

2.5.2.2 KEELOQ AES

For K

EELOQ AES, there is no requirement that a transmitter must be known to the

receiver before a packet can be accepted, so there is no learning process for a packet that is encoded with K contents of the packet is displayed on the LCD, as shown in Figure 2-8. The following information from the K

• Encoder: AES that represents K

• Serial number of the transmitter: 32-bit serial number (according to Figure 2-8) in this transmission

• Counter: 32-bit counter (according to Figure 2-8) in this transmission

• Function Code: A bitmap of pressed buttons, depending on the button pressed on the key fob

FIGURE 2-8:

EELOQ AES cipher. When a KEELOQ AES packet is received, the

EELOQ AES packet are available:

EELOQ AES

2.6 EMBEDDED SECURITY DEVELOPMENT BOARD HARDWARE SELF-CHECK

A hardware self-check can be performed to ensure the hardware integrity of the Embedded Security Development Board. The instruction of the hardware self-check is displayed on the LCD. The test result is either checked by firmware and display on the LCD, or verified by user observation.

To initiate the hardware self-check, press and hold push button SW1 before powering up the Embedded Security Development Board. SW1 can then be released when

“HDW Self Tests” is displayed on the LCD screen. Four individual hardware self-tests

will then be performed one by one.

2.6.0.1 BUTTON TESTS

“Button Test” will be displayed on the first line of the LCD display. Test instructions of

pressing individual buttons will be displayed on the second line of the LCD display. Once a required push button is pressed, the test instruction message will be changed for the next push button. Once all push buttons have been tested, SW1 needs to be pressed to move forward to the LED test.

2.6.0.2 LED TESTS

There are two sets, ten LEDs, which can be controlled by the host and target

application microcontroller separately. When LED tests start, the message “LEDs Flashing” will be displayed on the first line of the LCD display. During the tests, two

sets of LEDs will be flashing separately, while LEDs from the same set should be flashing together. The user should observe that all LEDs are turned on and off with flashing intervals of roughly one second. Once the user has verified the LED test, SW1 needs to be pressed to move forward to the RTCC test.

 2012 Microchip Technology Inc. DS41646A-page 19

Wireless Security Remote Control Development Kit User’s Guide

2.6.0.3 RTCC TEST

When RTCC tests are initiated, the LCD display will show the clock and calendar. If no coin battery for RTCC has been installed, the time displayed will be close to the reset time of January 1, 2012. On the other hand, if a coin battery for RTCC is installed, the time displayed will be based on whatever is previously set, plus the time that has been passed. Observe that the clock is advancing. Once the RTCC test is done, SW1 needs to be pressed to move forward to the SPI test.

2.6.0.4 SPI TEST

The SPI test in hardware self-check is performed to the SPI bus that connects the target application microcontroller and the SX1239 Receiver PICtail Daughter Board. Therefore, the SX1239 Receiver PICtail Daughter Board must have been plugged in before this test starts. Once the SPI test starts, the target application microcontroller requests specific information from the SX1239 receiver through the SPI bus. If the

expected response is received, then the “Successful” status will be displayed; otherwise, the “Fail” status will be displayed.

Note: If a PICtail daughter board other than the SX1239 Receiver PICtail

Daughter Board is plugged into the PICtail connector, even though the SPI bus may still work, the SPI test might show failure status. The reason is due to the expected values to be received from the SX1239.

DS41646A-page 20  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

TopButton

LeftButton

1

RightButton

BottomButton

LED

DEVELOPMENT KIT USER’S GUIDE

Chapter 3. PIC12LF1840T39A Wireless Remote Key Fob

3.1 INTRODUCTION

The PIC12LF1840T39A Wireless Remote Key Fob is a demonstration and development platform for wireless security remote control applications. This section gives a detailed description of the key fob.

3.2 HARDWARE DESCRIPTION

Figure 3-1 shows the key fob. The enclosure is an off-the-shelf key fob enclosure from

Polycase (http://www.polycase.com/ Circuit Board (PCB).

The schematic, PCB layout, and Bill of Materials are listed in Appendix

A. “PIC12LF1840T39A Wireless Remote Key Fob Schematics”.

FIGURE 3-1: PIC12LF1840T39A WIRELESS REMOTE KEY FOB

). The enclosure houses a two-sided Printed

3.3 PRINTED CIRCUIT BOARD DESCRIPTION

The key fob PCB is a two-layer, plated through hole, 0.031 inches (0.7874 millimeters) thick, FR4 material. Figure 3-2 shows the top layer of the PCB. All components, except the LED, are on the top layer. A PCB antenna is employed in the design for reduced cost and compactness. The PCB antenna is explained in more detail below.

P1 is the ICSP™ programming port. See Chapter 6. “Developing with the Wireless

Security Remote Control Development Kit” for suggestions on developing and

programming the key fob.

 2012 Microchip Technology Inc. DS41646A-page 21

Wireless Security Remote Control Development Kit User’s Guide

FIGURE 3-2: PCB TOP LAYER PHOTO

Figure 3-3 shows the bottom layer of the PCB. The bottom layer shows the PCB loop

antenna and the PCB traces for the conductive push buttons from the plastic enclosure.

FIGURE 3-3: PCB BOTTOM LAYER PHOTO

3.4 PCB ANTENNA DESCRIPTION

The PCB antenna is a combination of top and bottom PCB layer traces, as shown in

Figure 3-4. The feed point from the transmitter is on the right side of the figure. It is a

top layer trace shown in red. It taps into the PCB loop antenna on the bottom layer shown in blue. The antenna loops to the left side of the PCB and is terminated to ground by a capacitor.

The PCB antenna is an “electrically small loop antenna.” That is, the wavelength of the antenna is very much less than the one-quarter wavelength that antennas are normally designed to. This type of antenna has an extremely high quality factor (Q). Therefore, it is very susceptible to parasitic impedances and very challenging to impedance match to the transmitter.

DS41646A-page 22  2012 Microchip Technology Inc.

PIC12LF1840T39A Wireless Remote Key Fob

Figure 3-4 is a design suggestion. The designer is cautioned that even though this

design can be copied, the final product will require tuning. There are many factors that determine the performance of a PCB antenna: thickness of the copper layer, thickness of the PCB material, choice of the PCB material (e.g., FR4), and choice of the passive components used in the impedance matching circuit. The PCB antenna dimensions are not critical. Once the design has been tuned, what is important is the consistency of the manufacture.

FIGURE 3-4: PCB ANTENNA DIMENSIONS

Figure 3-5 shows the simulated three-dimensional plot of the radiation patter from the

antenna. Figure 3-6 shows the two-dimensional plots.

FIGURE 3-5: PCB ANTENNA 3D RADIATION PATTERN (SIMULATED)

 2012 Microchip Technology Inc. DS41646A-page 23

Wireless Security Remote Control Development Kit User’s Guide



FIGURE 3-6: PCB ANTENNA 2D RADIATION PATTERN (SIMULATED)

DS41646A-page 24  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL



SlideSwitch

S1

Wire

Antenna

28PinPICtail

Connector

DEVELOPMENT KIT USER’S GUIDE

Chapter 4. SX1239 Receiver PICtail™ Daughter Board

4.1 INTRODUCTION

The SX1239 PICtail™ Receiver Daughter Board is a demonstration and development platform for wireless security remote control applications. This section gives a detailed description of the receiver daughter board.

4.2 HARDWARE DESCRIPTION

Figure 4-1 shows the SX1239 Receiver PICtail Daughter Board. The schematic, PCB

layout, and Bill of Materials are listed in Appendix B. “SX1239 Receiver PICtail™

Daughter Board Schematics”.

FIGURE 4-1: SX1239 PICtail™ DAUGHTER BOARD

The daughter board features the Semtech SX1239 Low-Power Integrated UHF Receiver (http://www.semtech.com/wireless-rf/rf-receivers/sx1239/ daughter board can plug into the 28-pin PICtail connector featured on many Microchip Technology development tools.

The antenna connection has a pin socket for plugging a wire antenna. This demonstrates a simple and low-cost antenna option. The length of the antenna should be approximately ¼ wavelength of the frequency of interest.

 2012 Microchip Technology Inc. DS41646A-page 25

). The PICtail

Wireless Security Remote Control Development Kit User’s Guide

The antenna pin socket can be removed by heating it with a soldering iron and cleaning the connection. An SMA or reverse polarity SMA (RP-SMA) connector can be soldered in place on the PCB. A whip or sleeve dipole antenna can then be used.

DS41646A-page 26  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Chapter 5. Embedded Security Development Board

5.1 INTRODUCTION

The Embedded Security Development Board provides a demonstration and development environment for security and authentication products. This section gives a detailed description of the development board.

The layout of the Embedded Security Development Board is shown in Figure 5-1.

FIGURE 5-1: EMBEDDED SECURITY DEVELOPMENT BOARD

The following main blocks are defined on the Embedded Security Development Board:

1. Target Application microcontroller U4

2. Host microcontroller U1

3. Serial Accessory Port P20

4. USB Interface Port J3

 2012 Microchip Technology Inc. DS41646A-page 27

5. PICtail™ Connector J1

6. 16x2 character LCD display

7. Real-Time Clock and Calendar (RTCC) module U5

8. Push Buttons

9. LEDs

10. Voltage Regulator

11. ICSP™ Programming Ports, J4 for Host; J5 for Target Application

Wireless Security Remote Control Development Kit User’s Guide

5.2 HARDWARE DESCRIPTION

5.2.1 Serial Communications Connections

The Embedded Security Development Board is divided into two halves. The left side is the host controller half. The right side is the target application half. The two halves are connected by three wires labeled TP1, TP2, and TP3. Ta bl e 5- 1 lists the respective microcontroller I/O port connections.

TABLE 5-1: SERIAL COMMUNICATIONS CONNECTIONS

Host Controller PIC16LF1947

(Slave)

RF5 TP1 RB7/ICSPDAT

RB2 TP2 RB6/ICSPCLK

RF4 TP3 RE3/

Test Points

The host controller half is controlled by a PIC16LF1947 microcontroller. The PIC16LF1947 microcontroller communicates with a 16x2 character LCD display (LCD1), an MCP2200 USB to UART communications IC (U2), an MCP795W10 SPI Real-Time Clock Calendar IC (U5), four push button switches (SW5-SW8), and seven LEDs (D8-D14). The PIC16LF1947 microcontroller can be programmed/debugged via the ICSP™ header, J4. The host controller half schematic is shown in Appendix C as

Figure C-2.

The target application half has a PIC16LF1398 microcontroller. The PIC16LF1398 microcontroller communicates with the 28-pin PICtail connector (J1), Serial Accessory Port (P20), four push button switches (SW1-SW4), and four LEDs (D4-D7). The PIC16LF1398 microcontroller can be programmed/debugged via the ICSP header, J5. The target application half schematic is shown in Appendix C as Figure C-3.

Target Application PIC16LF1398

(Master)

MCLR/VPP

5.2.2 Serial Accessory Port (P20)

The Serial Accessory Port provides a simple serial interface for the external modules. These modules may be either external sensor or accessory board. The partial list of Microchip boards with SAP capabilities includes the following:

• LCD Serial Accessary Board

• RS232 Serial Accessary Board

For more information about the existing accessory boards, visit http://www.microchip.com

or refer to the “RS-232 Serial Accessory Board User’s Guide” (DS70649).

The following interfaces are supported by the Serial Accessory Port:

• 3 or 4 wire SPI

•I

C™

• USART

The on-board switch “S1” selects these interfaces. Jumpers J7 and J8 pull-up resistors

when I

C is selected and the pull-up resistors are not available on the daughter board. Software modifications are expected to use those interfaces when pins are assigned different functionalities. For more information on the port pin assignment, see the schematic in Appendix C.

5.2.3 USB Interface Port

Microchip MCP2200 provides USB to UART support. MCP2200 provides automatic conversion between UART and full-speed USB 2.0 communication. At the same time, the USB interface port can be used to power the Embedded Security Development Board directly. For more information, please refer to the Microchip MCP2200 data sheet.

DS41646A-page 28  2012 Microchip Technology Inc.

Embedded Security Development Board

5.2.4 PICtail Port

The PICtail port is a 28-pin interface port that supports Microchip’s RF-based daughter cards. The PICtail port provides the following interfaces to the daughter cards:

• Power Supply

• SPI interface

• Interrupt request lines

• Other digital/analog I/O lines

Note: The user must be careful about the PICtail port pins that share different

functions of the board. The user needs to check the schematics before assigning functions for any port pin.

There are many Microchip accessory daughter cards, which have PICtail port connectivity. When not used as one of the components in the Wireless Security Remote Control Development Kit, the Embedded Security Development Board can be connected with any daughter board with PICtail port, and perform different functionalities. Refer to the Microchip web site http://www.microchip.com daughter boards with PICtail port.

5.2.5 LCD Display

The Embedded Security Development Board supports 16x2 character LCD display with backlight. The LCD is controlled by the host microcontroller through the SPI port. For details about the LCD display, refer to the data sheet of NHD-C0216CZ-FSW-FBW-3V3 by Newhaven Display (http://www.newhavendisplay.com

for accessory

5.2.6 Real-Time Clock and Calendar (RTCC) Module

The Embedded Security Development Board RTCC module can be used to set and track clock and calendar precisely. The RTCC functionality is achieved with the Microchip MCP795W10. The RTCC module is controlled by the host microcontroller through the SPI interface. The RTCC module can be powered either by the 3.3V power from the Embedded Security Development Board, or by a separate coin battery when external power is not available. For details on operating this RTCC module, refer to the data sheet of the MCP795W10 at http://www.microchip.com/MCP795W10

5.2.7 Push Buttons

The Embedded Security Development Board has two sets of push buttons. Each set consists of four individual push buttons and serves as input to the host and target application microcontrollers.

The four push buttons for the target application microcontroller are read as a single analog input. Depending on the different ratios of pull-up and pull-down resister values, the input analog voltages to the master microcontroller are different. Therefore, through the ADC on the target application microcontroller, the button that is pressed can be identified. Such design is used to save I/O pin requirement for the target application microcontroller. The details of the push buttons design can be found in the schematics in Appendix C.

The four push buttons for the host microcontroller are four separate digital inputs to the slave microcontroller, due to the abundant I/O pin availability for the slave microcontroller. All buttons are assigned to the individual interrupt lines of the microcontroller and are not driven by external pull-up circuitry to save power consumption. The user software must enable the PORTB pull-ups of the microcontroller before evaluating the button state.

 2012 Microchip Technology Inc. DS41646A-page 29

Wireless Security Remote Control Development Kit User’s Guide

 



Master

ICSP

™

port

Slave

ICSP

™

port

The MCLR push button is connected to the RE3/MCLR pin of the target application microcontroller. The RE3/MCLR of the SPI lines that control the host microcontroller. When the target application and host microcontrollers are interconnected, the RE3/MCLR microcontroller is configured to be a normal digital I/O pin; therefore, the MCLR button is ineffective. Otherwise, if an SPI intercommunication is not required between the target application and host microcontroller, the pin can be configured as RESET and the MCLR

button can be used.

5.2.8 LEDs

There are two sets of LEDs that are controlled by the target application and host microcontrollers, respectively. The target application MCU controls a set of four LEDs through the digital output pins. The host MCU controls a set of six LEDs through digital output pins. The two sets of LEDs may be useful in the demo or debugging process.

Two LEDs (D15, D16) on the left half are used to identify the TX and RX operation of MCP2200. They cannot be controlled by the target application or host microcontroller. Similarly, LED D2 indicates the power availability. This LED cannot be controlled either by the target application or the host microcontroller.

5.2.9 Power Supply

The Embedded Security Development Board can be powered by one of the following two sources:

• USB port

• External 3.3V power source through GND and +V

Jumper J6 is used to choose the power source. When the left side, pins 1-2 of J6, are closed, USB power is selected; when the right side, pins 2-3 of J6, are closed, external power source is selected.

When the USB port is used to power the board, the input voltage is stabilized by Microchip MCP1703, 250 mA, 3.3V and low quiescent current LDO regulator U3.

pin of the target application microcontroller is also one

pin of target application

EXT connectors

push

5.2.10 ICSP™ Programming/Debugging Ports

There are two ICSP™ programming/debugging ports on the Embedded Security Development Board. The ICSP port J4 on the left is used to program the host microcontroller. The ICSP port J5 on the right is used to program the target application microcontroller. Figure 5-2 shows the ICSP ports.

FIGURE 5-2: ICSP™ PROGRAMMING/DEBUGGING PORTS

DS41646A-page 30  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Chapter 6. Developing with the Wireless Security Remote

Control Development Kit

6.1 INTRODUCTION

This chapter provides some suggestions regarding the development of an RKE solution on the Wireless Security Remote Control Development Kit. General design considerations are provided on both the transmitter and receiver side.

6.2 DEVELOPING WITH A KEY FOB AS TRANSMITTER

To modify the hex code in the key fob, the developer needs to open the red plastic enclosure. The ICSP™ port is available on the key fob PCB as six contact areas. To program the PIC12LF1840T39A on the PCB, the developer needs to perform the following steps:

• Remove the PCB board from the plastic enclosure and lay the PCB board on a nonconductive surface.

• Align the six ICSP pins to the contact areas on the PCB. Push the ICSP pins to the contact areas and avoid any movement during programming. Figure 6-1 shows how to program the key fob.

• When testing the key fob transmission when the plastic enclosure is open, avoid touching any PCB area with your finger.

Note: For simplicity, all key fobs in the demo share the same serial number.

FIGURE 6-1: PROGRAMMING THE KEY FOB

As a secured RKE system, K essential to the security of the whole system. It is highly recommended to use code-protect of the PIC

EELOQ security keys, especially the manufacturer key is

MCU memory.

 2012 Microchip Technology Inc. DS41646A-page 31

Wireless Security Remote Control Development Kit User’s Guide

The Microchip RKE demo uses PWM, driven by interrupt, in data whitening procedure. The transmission data rate over the air that can be achieved is tightly related to the operation speed of the microcontroller. Higher data rate requires faster processing speed. Higher transmission data rate may reduce the total active time for each transmission; however, higher microcontroller processing speed generally has more current consumption. The real application may need compromise between higher data rate and faster processing speed to get the optimal battery life.

6.3 DEVELOPING WITH THE EMBEDDED SECURITY DEVELOPMENT BOARD AS RECEIVER

The Embedded Security Development Board acts as a receiver in the Wireless Security Remote Control Development Kit. The target application microcontroller on the right side of the development board is the driving host for the receiver. All data receiving and K microcontroller. On the other hand, the host microcontroller is mainly used to drive the LCD display in this demo.

If the developer decides to develop the application on the target application microcontroller only, intercommunication between the target application and host microcontrollers can be ignored. The prototyping area under the four push buttons for target application controller can be used to prototype the application.

Same as the transmitter, when continuous mode is used to receive data, the data rate is tightly associated with the processing speed of the microcontroller. Unlike the transmitter, which is usually powered by battery, the receiving side usually is powered by mains power, and power consumption is of less concern. It is possible to run the microcontroller faster to compensate higher data rate.

On the other hand, if the developer decides to use the host microcontroller too, then the intercommunication between the two microcontrollers may need attention. The host microcontroller is an SPI slave, and thus requires faster response to the SPI command. Generally speaking, if no SPI delay is applied by the target application controller side, the operation speed of the host microcontroller needs to be double that of the target application microcontroller.

EELOQ security functionalities are performed by the target application

DS41646A-page 32  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Appendix A. PIC12LF1840T39A Wireless Remote Key Fob

Schematics

FIGURE A-1: KEY FOB PCB ASSEMBLY – TOP SILKSCREEN

FIGURE A-2: KEY FOB PCB ASSEMBLY – TOP COPPER

 2012 Microchip Technology Inc. DS41646A-page 33

Wireless Security Remote Control Development Kit User’s Guide

FIGURE A-3: KEY FOB PCB ASSEMBLY – BOTTOM COPPER

FIGURE A-4: KEY FOB PCB ASSEMBLY – BOTTOM SILKSCREEN

DS41646A-page 34  2012 Microchip Technology Inc.

PIC12LF1840T39A Wireless Remote Key Fob Schematics

ICSP™

FIGURE A-5: KEY FOB SCHEMATIC

 2012 Microchip Technology Inc. DS41646A-page 35

Wireless Security Remote Control Development Kit User’s Guide

TABLE A-1: KEY FOB BOM

Qty Designator Value Description Manufacturer

1 BT1 Holder Coin Cell 20MM

SMD

1 @BT1 Battery Lithium Coin 3V

20mm

2 C6, C7 0.1 µF Capacitor, Ceramic,

16V, +/-10%, X7R, SMT 0402

1 DS1 Red Diode, Light Emitting OSRAM LS Q976-NR-1-0-20-R18

1R6 470 Ω Resistor, 5%, ±100

ppm/C, SMT 0402

1R3 10K Ω Resistor, 5%, ±100

ppm/C, SMT 0402

1R4 100 Ω Resistor, 5%, ±100

Common

2 R1, R5 47 kΩ Resistor, 5%, ±100

1 U1 Microcontroller with

1 enclosure Enclosure, Key Fob,

1 C1 1 pF Capacitor, Ceramic,

1 L5 120 nH Inductor, Ceramic, ±5%,

1 C4 1000 pF Capacitor, Ceramic, Murata Electronics GRM155R71H102KA01D

1 C5 1 nF Capacitor, Ceramic, Murata Electronics GRM1555C1H102JA01D 1C3 0 Ω Resistor, 5%, ±100

1 L4 39 nH Inductor, Ceramic, ±5%,

1 L3 2.2 pF Capacitor, Ceramic,

315 MHz

1 C2 DNP Do not populate — —

1 L2 DNP Do not populate — —

1L1 0 Ω Resistor, 5%, ±100

1 X1 24 MHz CRYSTAL 24.000 MHz Abracon Corporation ABM8G-24.000MHZ-18-D2

ppm/C, SMT 0402

UHF Transmitter

4-button, Clear Red

±5%, SMT 0402

SMT 0402

ppm/C, SMT 0402

SMT 0402

±5%, SMT 0402

ppm/C, SMT 0402

Memory Protection Devices

Panasonic – BSG CR2032

Murata Electronics North America

Yageo RC0402JR-07470RL

Yageo RC0402JR-0710KL

Yageo RC0402JR-07100RL

Yageo RC0402JR-0747KL

Microchip Technology PIC12LF1840T39A-I/SS

Polycase FB-20-4*9

Murata Electronics North America

Murata LQG15HSR12J02D

Yageo RC0402JR-070RL

Murata Electronics North America

Yageo RC0402JR-070RL

Manufacturer

Part Number

BK-912

GRM155R71C104KA88D

GRM1555C1H1R0CA01D

LQG15HS39NJ02D

GRM1555C1H2R2CZ01D

DS41646A-page 36  2012 Microchip Technology Inc.

PIC12LF1840T39A Wireless Remote Key Fob Schematics

TABLE A-1: KEY FOB BOM (CONTINUED)

1 C5 9.1 pF Capacitor, Ceramic, Johanson Technology 500R07S9R1CV4T 1 C3 5.6 pF Capacitor, Ceramic,

50V, ±0.1 pF, UHI-Q NP0, SMT 0402

1L4 0 Ω Resistor, 5%, ±100

ppm/C, SMT 0402

1L3 0 Ω Resistor, 5%, ±100

ppm/C, SMT 0402

1 C2 3 pF Capacitor, Ceramic,

433.92 MHz

1 L2 1 nH Inductor, Ceramic, ±5%,

1 L1 47 nH Inductor, Ceramic, ±5%,

1 X1 26 MHz CRYSTAL 26.000 MHz Abracon Corporation ABM8G-26.000MHZ-18-D2

1 C5 100 pF Capacitor, Ceramic, Murata Electronics GRM1555C1H101JZ01D 1 C3 DNP Do not populate — —

1 L4 DNP Do not populate — —

1 L3 27 nH Inductor, Ceramic, ±5%,

1 C2 1.8 pF Capacitor, Ceramic,

868 MHz

1L2 0 Ω Resistor, 5%, ±100

1 L1 27 nH Inductor, Ceramic, ±5%,

1 X1 26 MHz CRYSTAL 26.000 MHz Abracon Corporation ABM8G-26.000MHZ-18-D2

1 C5 4.7 nH Inductor, Ceramic, ±5%, Murata Electronics LQG15HS4N7S02D 1 C3 4.7 pF Capacitor, Ceramic,

1 L4 1.8 nH Inductor, Ceramic, ±5%,

1 L3 2.7 nH Inductor, Ceramic, ±5%,

1 C2 2.7 pF Capacitor, Ceramic,

915 MHz

1 L2 1.8 nH Inductor, Ceramic, ±5%,

1 L1 15 nH Inductor, Ceramic, ±5%,

1 X1 26 MHz CRYSTAL 26.000 MHz Abracon Corporation ABM8G-26.000MHZ-18-D2

50V, ±0.1 pF, UHI-Q NP0, SMT 0402

SMT 0402

±5%, SMT 0402

ppm/C, SMT 0402

SMT 0402

±5%, SMT 0402

SMT 0402

±5%, SMT 0402

SMT 0402

Johanson Technology Inc

Yageo RC0402JR-070RL

Johanson Technology Inc

Panasonic – ECG ELJ-RF47NGFB

Murata Electronics North America

Yageo RC0402JR-070RL

Murata Electronics North America

500R07S5R6CV4T

500R07S3R0BV4T

L-07C1N0SV6T

LQG15HS27NJ02D

GRM1555C1H1R8CZ01D

LQG15HS27NJ02D

GRM1555C1H4R7CZ01D

LQP15MN1N8B02D

LQG15HS2N7S02D

GRM1555C1H2R7CZ01D

LQP15MN1N8B02D

LQP15MN15NG02D

 2012 Microchip Technology Inc. DS41646A-page 37

Wireless Security Remote Control Development Kit User’s Guide

NOTES:

DS41646A-page 38  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Appendix B. SX1239 Receiver PICtail™ Daughter Board

Schematics

FIGURE B-1: SX1239 RECEIVER PICtail™ PCB ASSEMBLY

 2012 Microchip Technology Inc. DS41646A-page 39

Wireless Security Remote Control Development Kit User’s Guide

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DS41646A-page 40  2012 Microchip Technology Inc.

SX1239 Receiver PICtail™ Daughter Board Schematics

TABLE B-1: SX1239 RECEIVER PICtail™ BOM

Qty Designator Value Description Manufacturer

1 A1 Wire, 24AWG, Solid, PVC

Insul, Yellow

1 C3, C4 0.1 µF Cap, Ceramic, 0.1uF, 16V

+/-10% X7R

4 C6, C7, C8, C9 15 pF Cap, Ceramic, 15pF, 50V

+/-5% COG

1 E1 Pin Receptacle,

1 J1 Terminal strip, 2X14,

1 S1 Switch, DPDT, Miniature

Common

1 U1 RF Transceiver,

1 Y1 32 MHz Crystal, 32.0000 MHz,

1 C2 1.2 pF Cap, Ceramic, 1.2pF, 50V

1 L2 68 nH Inductor, 68nH, 140mA, Air

.015/.025Dia, 0667 Series

0.100sp, Rt Angle, 0.025 sq post

Slide, Vert, SMD

433/868/915 MHz, Low Power, QFN24

10pF, SMD TXC Series 7M

+/-0.25pF COG

Core, 5%

Alpha Wire 3050/1 YL005

Murata Electronics North America

Mill-Max Manufacturing Corp.

SAMTEC TSW-114-08-F-D-RA

E-Switch EG1390A

SEMTECH SX1239IMLTRT

TXC CORPORATION

Murata Electronics North America

Manufacturer

Part Number

GRM155R71C104KA88D

GRM1555C1H150JZ01D

0667-0-15-01-30-27-10-0

7M-32.000MEEQ-T

GRM1555C1H1R2CZ01D

LQW15AN68NJ00D

2 C1, C5 22 pF Cap, Ceramic, 22pF, 50V

+/-5% COG

1 L1 12 nH Inductor, 12nH, 500mA, Air

315/434 MHz

Note: Designator A1 Wire Antenna: Cut to 6.75 in. OAL.

1 C1 4.7 pF Cap, Ceramic, 4.7pF, 50V Murata Electronics GRM1555C1H4R7CZ01D

1 L1 13 nH Inductor, 13nH, 500mA, Air

1 C5 3.6 pF Cap, Ceramic, 3.6pF, 50V

868/915 MHz

Note: Designator A1 Wire Antenna: Cut to 6.75 in. OAL.

Core, 5%

+/-5% COG

Murata Electronics North America

TDK Corporation MLG1005S13NJ

Murata Electronics North America

GRM1555C1H220JZ01D

LQG15HS12NJ02D

GRM1555C1H3R6CZ01D

 2012 Microchip Technology Inc. DS41646A-page 41

Wireless Security Remote Control Development Kit User’s Guide

NOTES:

DS41646A-page 42  2012 Microchip Technology Inc.

WIRELESS SECURITY REMOTE CONTROL

DEVELOPMENT KIT USER’S GUIDE

Appendix C. Embedded Security Development Board

Schematics

FIGURE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD PCB ASSEMBLY

 2012 Microchip Technology Inc. DS41646A-page 43

Wireless Security Remote Control Development Kit User’s Guide

FIGURE C-2: EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (1 OF 2)

DS41646A-page 44  2012 Microchip Technology Inc.

Embedded Security Development Board Schematics

FIGURE C-3: EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (2 OF 2)

 2012 Microchip Technology Inc. DS41646A-page 45

Wireless Security Remote Control Development Kit User’s Guide

TABLE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD BOM

Qty Part Value Manufacturer MFG Part Number

1VDD VDD Keystone 5010

GND GND Keystone 5011

1 BT1 BK-885 MPD (Memory Protection Devices) BK-885

3 C8 8 pf TDK Corporation C1608C0G1H080D

C9 8 pf TDK Corporation C1608C0G1H080D

C17 8 pf TDK Corporation C1608C0G1H080D

2 C10 9 pf TDK Corporation C1608C0G1H090D

C11 9 pf TDK Corporation C1608C0G1H090D

1 C18 10 pf TDK Corporation C1608C0G1H100D

1 C19 100 pf TDK Corporation C1608C0G1H101J

11 C1 0.1 µf Murata GRM188R71E104KA01D

C2 0.1 µf Murata GRM188R71E104KA01D

C3 0.1 µf Murata GRM188R71E104KA01D

C4 0.1 µf Murata GRM188R71E104KA01D

C5 0.1 µf Murata GRM188R71E104KA01D

C6 0.1 µf Murata GRM188R71E104KA01D

C7 0.1 µf Murata GRM188R71E104KA01D

C14 0.1 µf Murata GRM188R71E104KA01D

C16 0.1 µf Murata GRM188R71E104KA01D

C21 0.1 µf Murata GRM188R71E104KA01D

C22 0.1 µf Murata GRM188R71E104KA01D

5 C12 1 µf Murata GRM188R61A105MA61D

C13 1 µf Murata GRM188R61A105MA61D

C15 1 µf Murata GRM188R61A105MA61D

C20 1 µf Murata GRM188R61A105MA61D

C23 1 µf Murata GRM188R61A105MA61D

1 D1 B0520WS Diodes Inc. B0520WS-7-F

1 D3 Fairchild Semiconductor BAT54

D2 Lite-On LTST-C191GKT

D4 Lite-On LTST-C191GKT

D5 Lite-On LTST-C191GKT

D6 Lite-On LTST-C191GKT

D7 Lite-On LTST-C191GKT

D8 Lite-On LTST-C191GKT

D9 Lite-On LTST-C191GKT

D10 Lite-On LTST-C191GKT

DS41646A-page 46  2012 Microchip Technology Inc.

Embedded Security Development Board Schematics

TABLE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD BOM (CONTINUED)

D11 Lite-On LTST-C191GKT

D12 Lite-On LTST-C191GKT

D13 Lite-On LTST-C191GKT

D14 Lite-On LTST-C191GKT

D15 Lite-On LTST-C191GKT

D16 Lite-On LTST-C191GKT

1J1 PICtail

1 J3 UX60-MB-5ST Hirose Electric Co Ltd UX60-MB-5ST

1 J4 DNP Do Not Populate 1J5 ICSP™ Sullins PBC06SBAN

1 J6 Sullins PBC03SAAN

1 J7, J8 Sullins PBC02DAAN

1 J9 Sullins PBC06SAAN

1 J10 Sullins PBC14DAAN

1 LCD1 Newhaven Displays C0216CZ-FSW-FBW-3V3

1 P20 Sullins PPPC061LGBN-RC

1 Q2 International Rectifier IRLML6302TRPBF

4 R1 100 Ω Stackpole Electronics International RMCF0603FT100R

R18 100 Ω Stackpole Electronics International RMCF0603FT100R

R20 100 Ω Stackpole Electronics International RMCF0603FT100R

R24 100 Ω Stackpole Electronics International RMCF0603FT100R

16 R2 330 Ω Stackpole Electronics International RMCF0603FT330R

R4 330 Ω Stackpole Electronics International RMCF0603FT330R

R5 330 Ω Stackpole Electronics International RMCF0603FT330R

™ Sullins PPPC142LFBN-RC

R6 330 Ω Stackpole Electronics International RMCF0603FT330R

R7 330 Ω Stackpole Electronics International RMCF0603FT330R

R8 330 Ω Stackpole Electronics International RMCF0603FT330R

R9 330 Ω Stackpole Electronics International RMCF0603FT330R

R10 330 Ω Stackpole Electronics International RMCF0603FT330R

R11 330 Ω Stackpole Electronics International RMCF0603FT330R

R12 330 Ω Stackpole Electronics International RMCF0603FT330R

R13 330 Ω Stackpole Electronics International RMCF0603FT330R

R14 330 Ω Stackpole Electronics International RMCF0603FT330R

R15 330 Ω Stackpole Electronics International RMCF0603FT330R

R16 330 Ω Stackpole Electronics International RMCF0603FT330R

R28 330 Ω Stackpole Electronics International RMCF0603FT330R

R29 330 Ω Stackpole Electronics International RMCF0603FT330R

1 R26 1k Ω Stackpole Electronics International RMCF0603FT1K00

 2012 Microchip Technology Inc. DS41646A-page 47

Wireless Security Remote Control Development Kit User’s Guide

TABLE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD BOM (CONTINUED)

5 R17 10k Ω Stackpole Electronics International RMCF0603FT10K0

R19 10k Ω Stackpole Electronics International RMCF0603FT10K0

R25 10k Ω Stackpole Electronics International RMCF0603FT10K0

R27 DNP Ω Do not Populate Do Not Populate

R30 10k Ω Stackpole Electronics International RMCF0603FT10K0

1 R21 12k Ω Stackpole Electronics International RMCF0603FT12K0

1 R22 20k Ω Stackpole Electronics International RMCF0603FT20K0

1 R23 28k Ω Stackpole Electronics International RNCP0603FTD28K0

1 R31 100k Ω Stackpole Electronics International RMCF0603FT100K

1R3 1M Ω Stackpole Electronics International RMCF0603FT1M00

1 S1 E-Switch EG1390B

9 SW1 Omron B3S-1000P

SW2 Omron B3S-1000P

SW3 Omron B3S-1000P

SW4 Omron B3S-1000P

SW5 Omron B3S-1000P

SW6 Omron B3S-1000P

SW7 Omron B3S-1000P

SW8 Omron B3S-1000P

1 U1 P16LF1947-I/PT Microchip Technology Inc. PIC16LF1947-I/PT

1 U2 MCP2200 Microchip Technology Inc. MCP2200-I/MQ

1 U3 MCP1703-3.3 Microchip Technology Inc. MCP1703T-3302E/MB

1 U4 PIC16LF1938-I/SS_28-PIN Microchip Technology Inc. PIC16LF1938-I/SS

1 U5 MCP795W10-I/ST Microchip Technology Inc. MCP795W10-I/ST

1 Y1 12 MHz NDK NX3225SA-12.000000MHZ

2 Y2 32.768 kHz Abracon ABS06-32.768KHZ-T

Y3 32.768 kHz Abracon ABS06-32.768KHZ-T

CLR Omron B3S-1000P

DS41646A-page 48  2012 Microchip Technology Inc.

NOTES:

Wireless Security Remote Control Development Kit User’s Guide

 2012 Microchip Technology Inc. DS41646A-page 49

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11/ 29/11

DS41646A-page 50  2012 Microchip Technology Inc.

Mouser Electronics

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Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Microchip: DM182017-1 DM182017-2 DM182017-3

Microchip Technology DM182017-1, DM182017-2, DM182017-3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1. Overview

1.1 INTRODUCTION

1.2 WIRELESS SECURITY REMOTE CONTROL DEVELOPMENT KIT CONTENTS

1.3 GETTING STARTED

Chapter 2. Getting Started

2.1 INTRODUCTION

2.2 HARDWARE REQUIREMENTS

2.3 SOFTWARE REQUIREMENTS

2.4 DEMO SETUP

2.5 DEMO OPERATION

2.5.1 Key Fob as Transmitter

FIGURE 2-2: KEY FOB WITH FOUR PUSH BUTTONS

2.5.2 Embedded Security Development Board as Receiver

FIGURE 2-4: START LEARN MODE

FIGURE 2-5: LEARN MODE TIMEOUT

FIGURE 2-6: ERASE TRANSMITTER RECORDS FROM MEMORY

2.5.2.2 KEELOQ AES

FIGURE 2-8:

2.6 EMBEDDED SECURITY DEVELOPMENT BOARD HARDWARE SELF-CHECK

2.6.0.1 BUTTON TESTS

2.6.0.2 LED TESTS

2.6.0.3 RTCC TEST

2.6.0.4 SPI TEST

Chapter 3. PIC12LF1840T39A Wireless Remote Key Fob

3.1 INTRODUCTION

3.2 HARDWARE DESCRIPTION

FIGURE 3-1: PIC12LF1840T39A WIRELESS REMOTE KEY FOB

3.3 PRINTED CIRCUIT BOARD DESCRIPTION

FIGURE 3-2: PCB TOP LAYER PHOTO

FIGURE 3-3: PCB BOTTOM LAYER PHOTO

3.4 PCB ANTENNA DESCRIPTION

FIGURE 3-4: PCB ANTENNA DIMENSIONS

FIGURE 3-5: PCB ANTENNA 3D RADIATION PATTERN (SIMULATED)

FIGURE 3-6: PCB ANTENNA 2D RADIATION PATTERN (SIMULATED)

Chapter 4. SX1239 Receiver PICtail™ Daughter Board

4.1 INTRODUCTION

4.2 HARDWARE DESCRIPTION

FIGURE 4-1: SX1239 PICtail™ DAUGHTER BOARD

Chapter 5. Embedded Security Development Board

5.1 INTRODUCTION

FIGURE 5-1: EMBEDDED SECURITY DEVELOPMENT BOARD

5.2 HARDWARE DESCRIPTION

5.2.1 Serial Communications Connections

TABLE 5-1: SERIAL COMMUNICATIONS CONNECTIONS

5.2.2 Serial Accessory Port (P20)

5.2.3 USB Interface Port

5.2.4 PICtail Port

5.2.5 LCD Display

5.2.6 Real-Time Clock and Calendar (RTCC) Module

5.2.7 Push Buttons

5.2.8 LEDs

5.2.9 Power Supply

5.2.10 ICSP™ Programming/Debugging Ports

FIGURE 5-2: ICSP™ PROGRAMMING/DEBUGGING PORTS

6.1 INTRODUCTION

6.2 DEVELOPING WITH A KEY FOB AS TRANSMITTER

FIGURE 6-1: PROGRAMMING THE KEY FOB

6.3 DEVELOPING WITH THE EMBEDDED SECURITY DEVELOPMENT BOARD AS RECEIVER

FIGURE A-1: KEY FOB PCB ASSEMBLY – TOP SILKSCREEN

FIGURE A-2: KEY FOB PCB ASSEMBLY – TOP COPPER

FIGURE A-3: KEY FOB PCB ASSEMBLY – BOTTOM COPPER

FIGURE A-4: KEY FOB PCB ASSEMBLY – BOTTOM SILKSCREEN

FIGURE A-5: KEY FOB SCHEMATIC

TABLE A-1: KEY FOB BOM

FIGURE B-1: SX1239 RECEIVER PICtail™ PCB ASSEMBLY

FIGURE B-2: RECEIVER PICtail™ SCHEMATIC

TABLE B-1: SX1239 RECEIVER PICtail™ BOM

FIGURE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD PCB ASSEMBLY

FIGURE C-2: EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (1 OF 2)

FIGURE C-3: EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (2 OF 2)

TABLE C-1: EMBEDDED SECURITY DEVELOPMENT BOARD BOM