MICRF114 Wireless Security
Remote Control Development Kit
User’s Guide
2015 Microchip Technology Inc.
DS50002433A
Note the following details of the code protection feature on Microchip devices:
•
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and may be superseded by updates.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 unless otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer,
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC,
SST, SST Logo, SuperFlash and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
The Embedded Control Solutions Company and mTouch are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo,
CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit
Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet,
KleerNet logo, MiWi, motorBench, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O,
Total Endurance, TSHARC, USBCheck, VariSense,
ViewSpan, WiperLock, Wireless DNA, 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.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2015, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-5224-0030-1
QUALITYMANAGEMENTSYSTEM
CERTIFIEDBYDNV
== ISO/TS16949==
DS50002433A-page 2
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
2015 Microchip Technology Inc.
Object of Declaration: MICRF114 Wireless Security Remote Control Development Kit
2015 Microchip Technology Inc.
DS50002433A-page 3
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
DS50002433A-page 4
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Chapter 1. Overview
1.1 Introduction ................................................................................................... 11
1.2 Wireless Security Remote Control Development Kit Contents ..................... 11
Chapter 2. Getting Started
2.1 Introduction ................................................................................................... 13
2.2 Hardware Requirements .............................................................................. 13
2.3 Software Requirements ................................................................................ 13
2.4 Demo Setup ................................................................................................. 13
2.5 Demo Operation ........................................................................................... 14
2.6 Embedded Security Development Board Hardware Self-Check .................. 18
Chapter 3. MICRF114 Wireless Remote Key Fob
3.1 Introduction ................................................................................................... 19
3.2 Hardware Description ................................................................................... 19
3.3 PCB Description ........................................................................................... 19
3.4 PCB Antenna Description ............................................................................. 21
Chapter 4. SX1239 Receiver PICtail™ Daughter Board
4.1 Introduction ................................................................................................... 23
4.2 Hardware Description ................................................................................... 23
Chapter 5. Embedded Security Development Board
5.1 Introduction ................................................................................................... 25
5.2 Hardware Description ................................................................................... 26
Chapter 6. Wireless Security Remote Control Development Kit
6.1 Introduction ................................................................................................... 31
6.2 Developing with the Key Fob as Transmitter ................................................ 31
6.3 Developing with the Embedded Security Development Board as Receiver . 31
Appendix A. MICRF114 Wireless Remote Key Fob Schematics
A.1 Introduction .................................................................................................. 33
Appendix B. SX1239 Receiver PICtail™ Daughter Board Schematics
B.1 Introduction .................................................................................................. 37
Appendix C. Embedded Security Development Board Schematics
C.1 Introduction .................................................................................................. 41
Worldwide Sales and Service .................................................................................... 46
2015 Microchip Technology Inc.
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MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
DS50002433A-page 6
2015 Microchip Technology Inc.
MICRF114 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 website
(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
“DSXXXXXXXXA”, where “XXXXXXXX” 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® IDE online help.
Select the Help menu, and then Topics to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
MICRF114 Wireless Security Remote Control Development Kit. Items discussed in this
chapter include:
•
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Recommended Reading
The Microchip Website
Development Systems Customer Change Notification Service
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the MICRF114 Wireless Security Remote Control
Development Kit to evaluate and experiment with Microchip KEELOQ® Remote Keyless
Entry (RKE) solutions. The document is organized as follows:
• Chapter 1. “Overview” – This chapter describes the MICRF114 Wireless
Security Remote Control Development Kit and its contents.
• Chapter 2. “Getting Started” – This chapter provides the requirements and
demonstration setup to start using the MICRF114 Wireless Security Remote
Control Development Kit.
• Chapter 3. “MICRF114 Wireless Remote Key Fob” – This chapter provides the
hardware details of the MICRF114 Wireless Remote Key Fob.
• Chapter 4. “SX1239 Receiver PICtail™ Daughter Board” – This chapter
provides the hardware details of the SX1239 Receiver PICtail™ Daughter Board.
• Chapter 5. “Embedded Security Development Board” – This chapter provides
the hardware details of the Embedded Security Development Board.
2015 Microchip Technology Inc.
DS50002433A-page 7
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
• Chapter 6. “Wireless Security Remote Control Development Kit” – This
chapter describes the Wireless Security Remote Control Development Kit and
provides the general design for the transmitter and receiver.
• Appendix A. “MICRF114 Wireless Remote Key Fob Schematics” – This
appendix provides the PCB layout, schematic, and Bill of Materials (BOM).
• Appendix B. “SX1239 Receiver PICtail™ Daughter Board Schematics” – This
appendix provides the PCB layout, schematic, and Bill of Materials.
• Appendix C. “Embedded Security Development Board Schematics” – This
appendix provides the PCB layout, schematic, and Bill of Materials.
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
Represents code supplied by
user
DS50002433A-page 8
Examples
File>Save
Press <Enter>, <F1>
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
var_name [,
var_name...]
void main (void)
{ ...
}
2015 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use the MICRF114 Wireless Security Remote
Control Development Kit. Other useful document is listed below. The following
Microchip document is recommended as a supplemental reference resource:
MICRF114 Low-Power Integrated Sub-GHz Wireless RF Transmitter Data Sheet
(DS50002416)
This data sheet provides the technical specifications for the MICRF114 RF transmitter
and is available for download from the Microchip website at www.microchip.com.
THE MICROCHIP WEBSITE
Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the website contains the following information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, and Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, and listings of Microchip sales
offices, distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip website at www.microchip.com, click on Customer
Change Notification and follow the registration instructions.
The Development Systems product group categories are:
• Compilers – The latest information on Microchip C compilers and other language
tools
• Emulators – The latest information on the Microchip MPLAB® REAL ICE™
in-circuit emulator
• In-Circuit Debuggers – The latest information on the Microchip in-circuit
debugger. This includes MPLAB ICD 3 in-circuit debuggers and PICkit™ 3 debug
express.
• MPLAB X IDE – The latest information on Microchip MPLAB X IDE, the
Windows® Integrated Development Environment for development systems tools
• Programmers – The latest information on Microchip programmers including the
PICkit 3 development programmer
2015 Microchip Technology Inc.
DS50002433A-page 9
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the website at:
http://www.microchip.com/support.
DOCUMENT REVISION HISTORY
Revision A (November 2015)
This is the initial release of this document.
DS50002433A-page 10
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Chapter 1. Overview
1.1
INTRODUCTION
The MICRF114 Wireless Security Remote Control Development Kit is a demonstration
and development platform for wireless security remote control applications. The kit
demonstrates two security protocols, KEELOQ® Classic and KEELOQ AES.
The kit contains a four-button key fob transmitter based on the MICRF114 RF transmitter, an SX1239 Receiver PICtail™ Daughter Board, and an Embedded Security Development Board.
1.2
WIRELESS SECURITY REMOTE CONTROL DEVELOPMENT KIT CONTENTS
The MICRF114 Wireless Security Remote Control Development Kit operates on
433.92 MHz (DM182017-5).
Each kit contains the following items:
• MICRF114 Wireless Remote Key Fob
Refer to Chapter 3. “MICRF114 Wireless Remote Key Fob” and
Appendix A. “MICRF114 Wireless Remote Key Fob Schematics”.
• SX1239 Receiver PICtail Daughter Board
Refer to Chapter 4. “SX1239 Receiver PICtail™ Daughter Board” and
Appendix B. “SX1239 Receiver PICtail™ Daughter Board Schematics”.
• Embedded Security Development Board
Refer to Chapter 5. “Embedded Security Development Board” and
Appendix C. “Embedded Security Development Board Schematics”.
• USB Cable
• CR2032 Coin Cell Battery
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MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
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2015 Microchip Technology Inc.
MICRF114 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 MICRF114
Wireless Security Remote Control Development Kit.
This chapter includes the following topics:
•
•
•
•
•
2.2
Hardware Requirements
Software Requirements
Demo Setup
Demo Operation
Embedded Security Development Board Hardware Self-Check
HARDWARE REQUIREMENTS
The following hardware is required to run the preprogrammed demo application:
•
•
•
•
•
2.3
MICRF114 Wireless Remote Key Fob
CR2032 Coin Cell Battery
SX1239 Receiver PICtail Daughter Board
Embedded Security Development Board
USB-A to Mini-B Cable
This cable is used to power the Embedded Security Development Board. Power
can also be provided by a bench power supply.
SOFTWARE REQUIREMENTS
The MICRF114 Wireless Remote Key Fob and Embedded Security Development
Board are preprogrammed with a remote control demo program. Section 2.4 “Demo
Setup” and Section 2.5 “Demo Operation” explain the demo setup and operation.
For additional information related to the demo, visit the MICRF114 product web page
at www.microchip.com/MICRF114.
2.4
DEMO SETUP
To setup and operate the remote control demo program, perform the following steps:
1. Open the plastic enclosure of the red key fob by carefully prying apart the two
sections. Carefully remove the Printed Circuit Board (PCB) from the plastic
enclosure. Observe the correct battery polarity and insert the CR2032 coin battery into the battery holder. Put the PCB back into the plastic enclosure and then
close the enclosure.
2. Press any push button to verify that the key fob is properly installed. The LED
flashes when the button is pressed.
3. Plug in the RF receiver daughter board into the PICtail socket of the Embedded
Security Development Board. Ensure that the RF receiver chip side faces the
center as shown in Figure 2-1.
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DS50002433A-page 13
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
FIGURE 2-1:
PLUG THE SX1239 RECEIVER PICtail™ DAUGHTER BOARD
INTO THE EMBEDDED SECURITY DEVELOPMENT BOARD
4. 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 and an available USB port or USB power source
to the development board. Set jumper J6 to pins 1-2. When using a USB port for
power, loading the USB drivers is not required.
To power the Embedded Security Development Board from an external power
supply, connect test points labeled +VEXT and GND to a bench power supply set
to 3.3 VDC. Set jumper J6 to pins 2-3.
Once the Embedded Security Development Board is powered up, the messages
“Security and Auth Development Kit” followed by “KEELOQ 3 Demo 433.92 MHz”
appears on the LCD display. If the second message did not appear within five
seconds, press the MCLR button located on the upper right quarter of the board.
2.5
DEMO OPERATION
The preprogrammed demo is used to demonstrate the basic operation of Microchip
Remote Keyless Entry (RKE) solutions. The demo highlights the capabilities of secure
data transmission over the air. Two different methods of securing information before
transmission, KEELOQ Classic and KEELOQ AES, are used in this demo.
2.5.1
Key Fob as a Transmitter
The preprogrammed demonstration shows how to secure information during data
transmission. The red key fob has four push buttons and is powered by a CR2032 coin
battery. By pressing any of the four buttons, the information on the pressed button is
encrypted and transmitted. During data transmission, the LED on the key fob is flashing. The two methods to secure the information before the transmission are KEELOQ
Classic and KEELOQ AES. Press button 1 or button 2 to secure the information with
KEELOQ Classic and button 3 or button 4 to secure the information with KEELOQ AES.
Refer to Figure 2-2.
DS50002433A-page 14
2015 Microchip Technology Inc.
For more information on KEELOQ Classic and KEELOQ AES, refer to the following
Microchip Technology Application Notes:
• AN1259 KEELOQ® Microcontroller-Based Code Hopping Encoder (DS01259)
• AN1265 KEELOQ® with AES Microcontroller-Based Code Hopping Encoder
(DS01265)
FIGURE 2-2:
2.5.2
KEY FOB WITH FOUR PUSH BUTTONS
Embedded Security Development Board as a 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 what cipher
(KEELOQ Classic or KEELOQ AES) to use in securing the data. The decryption process
reveals the plain text, and the authentication process verifies whether the plain text
contains valid information.
2.5.2.1
KEELOQ® CLASSIC
For KEELOQ Classic, the receiver accepts messages only from a known transmitter.
The known transmitters and their latest counters are stored in the Nonvolatile Memory
(NVM) space of the microcontroller. If a packet is received from an unknown transmitter, the message “KLQ: (serial number) Not Learned!” displays on the LCD as shown
in Figure 2-3.
FIGURE 2-3:
2015 Microchip Technology Inc.
ERROR MESSAGE OF RECEIVING PACKET FROM AN
UNKNOWN TRANSMITTER
DS50002433A-page 15
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
To learn a transmitter, press the SW4 button to make the receiver initiate the learning
process. The message “Learn mode active” displays on the LCD, as shown in
Figure 2-4.
FIGURE 2-4:
START LEARN MODE
If the received packet is from a known transmitter, the NVM remains untouched. If a
relearn is performed to resynchronize the hop counter of a transmitter, the NVM must
be erased first. If no KEELOQ Classic packet from an unknown transmitter is received
within 18 seconds, the KEELOQ Classic Learn mode timeouts and displays the message “Learn mode timeout” on the LCD as shown in Figure 2-5.
FIGURE 2-5:
LEARN MODE TIMEOUT
When all slots in the NVM space for transmitters are taken, the learning process fail.
Press and hold SW4 button for about ten seconds to erase all transmitter records from
the NVM. The message “Memory Erased” displays on the LCD as shown in Figure 2-6.
After erasing records from the NVM, reset the board by removing and reinserting J6.
FIGURE 2-6:
DS50002433A-page 16
ERASE TRANSMITTER RECORDS FROM MEMORY
2015 Microchip Technology Inc.
When a KEELOQ Classic packet is received from a known transmitter, the contents of
the packet displays on the LCD as shown in Figure 2-7. The LED D7 flashes during a
valid packet reception.
Figure 2-7 shows the following information from a sample KEELOQ Classic packet:
•
•
•
•
Encoder: KLQ representing KEELOQ Classic
Serial number of the transmitter: a 28-bit serial number
Counter (C): a 16-bit number
Function Code (F): a bitmap of the pressed buttons on the key fob. Number 3
displays if both KLQ buttons (1 and 2) are pressed.
FIGURE 2-7:
2.5.2.2
KEELOQ® PACKET INFORMATION
KEELOQ® AES
For KEELOQ AES, it is not required that a transmitter must be known to the receiver
before a packet can be accepted. Therefore, there is no learning process for a packet
encoded with KEELOQ AES cipher. When a KEELOQ AES packet is received, the content of the packet displays on the LCD as shown in Figure 2-8. The LED D7 flashes
during a valid packet reception.
Figure 2-8 shows the following information from a sample KEELOQ AES packet:
•
•
•
•
Encoder: AES representing KEELOQ AES
Serial number of the transmitter: a 32-bit serial number
Counter (C): a 32-bit counter
Function Code (F): a bitmap of the pressed buttons, depending on the button
pressed on the key fob.
FIGURE 2-8:
2015 Microchip Technology Inc.
KEELOQ® AES PACKET INFORMATION
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MICRF114 Wireless Security Remote Control Development Kit User’s Guide
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 instructions for the hardware self-check
are displayed on the LCD. The test result is either checked by the firmware and
displays on the LCD or verified by user observation.
To initiate the hardware self-check, press and hold the SW1 button before powering up
the Embedded Security Development Board. Release the SW1 button only when the
message “HDW Self Tests” displays on the LCD screen.
The four individual hardware self-tests are performed in the following sequence:
2.6.1
Button Test
“Button Test” displays in the first line of the LCD display, while the test instructions are
displayed in the second line.
Once the required button is pressed, the test instruction message changes for the next
push button. Once all buttons have been tested, press SW1 button to move forward to
the LED test.
2.6.2
LED Tests
When the LED tests start, the message “LEDs Flashing” displays in the first line of the
LCD display. During the tests, the two sets of LEDs are flashing separately, while LEDs
from the same set must be flashing together at roughly one second intervals. Once the
user verifies the LED test, press SW1 button to move forward to the Real-Time Clock
and Calendar (RTCC) test.
2.6.3
RTCC Test
When RTCC test is initiated, the LCD display shows the clock and the calendar. If there
is no coin battery installed for RTCC, the time displayed is close to the reset time of
January 1, 2012. If a coin battery for RTCC is installed, the time displayed is based on
the previously set time, plus the time that has passed. Observe that the clock shows
the time in advance. Once the RTCC test is done, press SW1 button to move forward
to the SPI test.
2.6.4
SPI Test
The SPI test in hardware self-check is performed on the SPI bus that connects the
target application microcontroller and the SX1239 Receiver PICtail Daughter Board.
Therefore, the SX1239 Receiver PICtail Daughter Board must be plugged in before
starting the test. Once the SPI test starts, the target application microcontroller
requests specific information from the SX1239 receiver through the SPI bus. The
“Successful” status displays if the expected response is received. Otherwise, expect
the “Fail” status message.
Note:
DS50002433A-page 18
If a PICtail daughter board other than the SX1239 Receiver PICtail
Daughter Board is plugged into the PICtail connector, the SPI bus may
still work, but the SPI test may show a failure status. It is due to the
expected values to be received specifically from the SX1239.
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Chapter 3. MICRF114 Wireless Remote Key Fob
3.1
INTRODUCTION
The MICRF114 Wireless Remote Key Fob is a demonstration and development
platform for wireless security remote control applications. This chapter provides 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 from Polycase
(http://www.polycase.com/). The enclosure houses a two-sided PCB.
Appendix A. “MICRF114 Wireless Remote Key Fob Schematics” provides the
PCB layout, schematic, and Bill of Materials (BOM).
FIGURE 3-1:
3.3
MICRF114 WIRELESS REMOTE KEY FOB
PCB DESCRIPTION
The key fob PCB is a two layer, plated through hole, 1/24 inches (1 millimeter) thick,
FR4 material. Figure 3-2 and Figure 3-3 show the top and the bottom view of the PCB.
All components, except the coin battery, are on the top side. These components are the
PCB antenna, conductive push button footprints (SW1-SW4), LED (LD1), MICRF114
transmitter (IC1), RF matching network (C5-C8, L1-L3), and PIC12LF1840 microcontroller. A PCB antenna is used in the design for reduced cost and compactness. Refer
to Section 3.4 “PCB Antenna Description” for more information on the PCB
antenna. An ICSP™ Programming Capability is also available on the board.
Refer to Chapter 6.“Wireless Security Remote Control Development Kit” for
suggestions on developing and programming the key fob.
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DS50002433A-page 19
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
DS50002433A-page 20
FIGURE 3-2:
PCB TOP SIDE
FIGURE 3-3:
PCB BOTTOM SIDE
2015 Microchip Technology Inc.
3.4
PCB ANTENNA DESCRIPTION
The on-board antenna of the key fob is a meander shaped PCB antenna in which
impedance and resonant frequency are determined by electromagnetic (EM) simulations and laboratory fine tuning. This design leads to a modest antenna gain (about
-18 dBi), which is usual in the case of small PCB sizes. On the other hand, it does not
require any external impedance matching component as the impedance of the antenna
are set to 50 ohms by simulation and fine tuning.
The designer is cautioned that although this design is constructed to be ETSI/FCC
certifiable, the final product may require fine tuning. It is the responsibility of the
designer to ensure that the final design satisfies ETSI or FCC recommendations, or
both. There are some factors that determine the performance of a PCB antenna, such
as the thickness of the copper layers, thickness of the PCB material, choice of PCB
material (FR4 as an example), and choice of passive components used.
Figure 3-4 shows the used antenna dimensions on both top copper and bottom copper
layers.
FIGURE 3-4:
2015 Microchip Technology Inc.
PCB ANTENNA DIMENSIONS
DS50002433A-page 21
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
DS50002433A-page 22
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Chapter 4. SX1239 Receiver PICtail™ Daughter Board
4.1
INTRODUCTION
The SX1239 Receiver PICtail Daughter Board is a demonstration and development
platform for wireless security remote control applications. This chapter provides a
detailed description of the receiver daughter board.
4.2
HARDWARE DESCRIPTION
Figure 4-1 shows the SX1239 Receiver PICtail Daughter Board.
Appendix B. “SX1239 Receiver PICtail™ Daughter Board Schematics” provides the
PCB layout, schematic, and BOM.
FIGURE 4-1:
SX1239 RECEIVER PICtail™ DAUGHTER BOARD
Wire
Antenna
Slide Switch
S1
28-pin PICtail
connector
The daughter board features the SX1239 Low-Power Integrated UHF Receiver
(http://www.semtech.com/wireless-rf/rf-receivers/sx1239/).The PICtail daughter board
can be plugged into the 28-pin PICtail connector featured on many Microchip
development tools.
2015 Microchip Technology Inc.
DS50002433A-page 23
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
The antenna connection has a pin socket for plugging in a wire antenna. This demonstrates a simple and low-cost antenna option. The length of the antenna must be
approximately 1/4 wavelength of the frequency of interest.
If a whip or sleeve dipole antenna having an SMA connector must be used instead of
the wire antenna, the antenna pin can be replaced with a mating SMA socket by removing the wire antenna pin and using the SMA footprint on the same place.
DS50002433A-page 24
2015 Microchip Technology Inc.
MICRF114 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 chapter provides a
detailed description of the development board. Appendix C. “Embedded Security
Development Board Schematics” provides the PCB layout, schematic, and BOM.
The Embedded Security Development Board has the following main blocks as
represented in Figure 5-1:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Target Application (Master) microcontroller (U4)
Host (Slave) microcontroller (U1)
Serial Accessory Port (P20)
USB Interface Port (J3)
PICtail connector (J1)
16x2 character LCD display (LCD1)
Real-Time Clock and Calendar (RTCC) module (U5)
Push Buttons (SW1-SW4 and SW5-SW8)
LEDs (D4-D7)
Voltage Regulator (U3)
ICSP Programming Ports (J4 for Host and J5 for Target Application)
MCP2200 USB to UART communications IC (U2)
FIGURE 5-1:
EMBEDDED SECURITY DEVELOPMENT BOARD
4
11
10
9
3
12
1
2
5
7
6
8
2015 Microchip Technology Inc.
DS50002433A-page 25
MICRF114 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 sections. The left
section is the host controller and the right section is the target application. The two sections are connected by three wires labeled as TP1, TP2, and TP3. Table 5-1 lists the
respective microcontroller I/O port connections.
TABLE 5-1:
SERIAL COMMUNICATIONS CONNECTIONS
Host Controller PIC16LF1947
(Slave)
Test Points
Target Application PIC16LF1398
(Master)
RF5
TP1
RB7/ICSPDAT
RB2
TP2
RB6/ICSPCLK
RF4
TP3
RE3/MCLR/VPP
The host controller section 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 section schematic is shown in Figure C-2 of
Appendix C. “Embedded Security Development Board Schematics”.
The target application section has a PIC16LF1398 microcontroller. The PIC16LF1398
microcontroller communicates with the 28-pin PICtail connector (J1), the 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 section schematic is shown in Figure C-1 of Appendix
C. “Embedded Security Development Board Schematics”.
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 sensors or accessory boards. The following is
the partial list of Microchip boards with SAP capabilities:
• LCD Serial Accessory Board
• RS232 Serial Accessory Board
For more information on the available accessory boards, visit the Microchip website at
www.microchip.com or refer to the RS232 Serial Accessory Board User's Guide
(DS70649).
The Serial Accessory Port supports the following interfaces:
•
•
•
3- or 4-wire SPI
I2C
USART
The on-board switch, S1, selects these interfaces. Jumpers J7 and J8 connect the
pull-up resistors when I2C is selected and the pull-up resistors are unavailable on the
daughter board. Software modifications are expected to use those interfaces when
different functionalities are assigned to the pins.
For more information on the port pin assignment, refer to the schematic in Appendix
C. “Embedded Security Development Board Schematics”.
DS50002433A-page 26
2015 Microchip Technology Inc.
5.2.3
USB Interface Port
Microchip MCP2200 provides USB to UART support. MCP2200 provides automatic
conversion between UART and a full-speed USB 2.0 communication. At the same time,
the USB interface port can be used to directly power the Embedded Security Development Board. For more information, refer to the MCP2200 Data Sheet (DS22228).
5.2.4
PICtail Port
The PICtail port is a 28-pin interface port that supports Microchip's RF-based daughter
boards. The PICtail port provides the following interfaces to the daughter boards:
•
•
•
•
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 must also check the schematics before
assigning functions to any port pin.
There are many Microchip accessory daughter boards with a PICtail port connectivity.
When unused as one of the components in the Wireless Security Remote Control
Development Kit, the Embedded Security Development Board can be connected to any
daughter board with a PICtail port and perform different functionalities.
For more information on the accessory daughter boards with a PICtail port, refer to the
Microchip website at www.microchip.com.
5.2.5
LCD Display
The Embedded Security Development Board supports a 16x2 character LCD display
with backlight. The LCD is controlled by the host microcontroller through the SPI port.
For more information on the LCD display, refer to the “NHD-C0216CZ-FSW-FBW-3V3”
specification by Newhaven Display (http://www.newhavendisplay.com).
5.2.6
Real-Time Clock and Calendar (RTCC) Module
The Embedded Security Development Board RTCC module can be used to precisely
set and track clock and calendar. The RTCC functionality is achieved with the Microchip
MCP795W10 device. 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 unavailable.
For details on operating the RTCC module, refer to the “MCP795W1X/MCP795W2X
SPI RTCC with Enhanced Features and Battery Switchover Data Sheet” (DS22280C)
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 resistor values,
the input analog voltages to the master microcontroller are different. Therefore, the
pressed button can be identified through the ADC on the target application
microcontroller. Such design is used to save I/O pin requirement for the target
application microcontroller.
2015 Microchip Technology Inc.
DS50002433A-page 27
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
For more information on the design of the push buttons, refer to the schematics in
Appendix C. “Embedded Security Development Board Schematics”.
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. All buttons are assigned
to the individual interrupt lines of the microcontroller and are not driven by external
pull-up circuitry to save on power consumption. The user software must enable the
PORTB pull-ups of the microcontroller before evaluating the button state.
The MCLR push button is connected to the RE3/MCLR pin of the target application
microcontroller. The RE3/MCLR pin of the target application microcontroller is one of
the SPI lines that control the host microcontroller. When the target application and host
microcontrollers are interconnected, the RE3/MCLR pin of the target application microcontroller is configured to be a normal digital I/O pin. Therefore, the MCLR push button
is ineffective. However, if an SPI communication is not required between the target
application and host microcontroller, the pin can be configured as Reset by using the
MCLR push button.
5.2.8
LEDs
There are two sets of LEDs 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 seven LEDs through digital output
pins. The two sets of LEDs are useful in the demo or debugging process.
In addition, two LEDs, D15 and D16, on the left section of the Embedded Security
Development Board are used to identify the TX and RX operation of the MCP2200.
LED D2 indicates the power availability. These LEDs cannot be controlled by either the
target application or the host microcontroller.
5.2.9
Power Supply
The Embedded Security Development Board is powered by one of these two sources:
• USB port
• External 3.3V power source through GND and +VEXT connectors
Set jumper J6 to pins 1-2 to power the Embedded Security Development Board from
the USB port, and set J6 to pins 3-4 to power from an external power source.
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).
DS50002433A-page 28
2015 Microchip Technology Inc.
5.2.10
ICSP™ Programming Capability
Figure 5-2 shows that there are two ICSP programming/debugging ports on the
Embedded Security Development Board. The ICSP port on the left side, J4, is used to
program the host microcontroller. The ICSP port on the right, J5, is used to program the
target application microcontroller.
FIGURE 5-2:
ICSP PROGRAMMING/DEBUGGING PORTS
Slave
Master
ICSP Port (J4)
ICSP Port (J5)
Note:
2015 Microchip Technology Inc.
J4 is not populated by default.
DS50002433A-page 29
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
DS50002433A-page 30
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Chapter 6. Wireless Security Remote Control Development Kit
6.1
INTRODUCTION
This chapter provides recommendations regarding the development of an RKE solution on the Wireless Security Remote Control Development Kit. General design considerations are also provided for both the transmitter and receiver side.
6.2
DEVELOPING WITH THE KEY FOB AS TRANSMITTER
To modify the hex code in the key fob, the developer must open the red plastic enclosure. The ICSP port is available on the key fob PCB as six through-hole pads. The
developer can access the MCU either by soldering a 6-pin header into the holes or by
pushing the ICSP header in the ICSP through-hole pads. Slightly tilt and force the ICSP
header to ensure proper connection and then start programming. Be careful as not to
make short to the coin battery.
Note:
When testing the key fob transmission with an open plastic enclosure,
avoid touching the PCB area with your finger. For simplicity, all key fobs in
the demo share the same serial number.
As a secured RKE system, KEELOQ® security keys, especially the manufacturer key is
essential to the security of the whole system. It is highly recommended to use the code
protection of the PIC® MCU memory.
The Microchip RKE demo uses pulse-width modulation (PWM), driven by interrupt, in
data whitening procedure. The achievable transmission data rate over the air 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 results
in higher current consumption. The real application may need a compromise between
higher data rate and faster processing speed to achieve 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
KEELOQ security functionalities are performed by the target application 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 only on the target application microcontroller, intercommunication between the target application and the host microcontroller can be ignored. The prototyping area under the four push buttons of the target
application controller can be used to prototype the application.
2015 Microchip Technology Inc.
DS50002433A-page 31
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
Similar to 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 is usually powered by
main power, and power consumption is of less concern. It is possible to run the microcontroller faster to achieve higher data rate.
On the other hand, if the developer also decides to use the host microcontroller, then
the intercommunication between the two microcontrollers may need attention. The host
microcontroller is an SPI slave, and thus requires a faster response to the SPI command. Generally, if no SPI delay is applied by the target application controller side, the
operation speed of the host microcontroller must double the speed of the target application microcontroller.
Normally, the MCLR button is not functioning as a Reset button due to the RE3/MCLR
pin is configured as a general-purpose input and is used for the Master-Slave communication. To debug the application, the Reset functionality must be enabled by modifying the appropriate Configuration bit and installing R27. In this case, communication
between the Master and the Slave MCUs is lost.
DS50002433A-page 32
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Appendix A. MICRF114 Wireless Remote Key Fob
Schematics
A.1
INTRODUCTION
This appendix provides the following information:
•
•
•
•
Key Fob PCB Assembly top and bottom silkscreen (Figure A-1 and Figure A-2)
Key Fob PCB Assembly top and bottom copper (Figure A-3 and Figure A-4)
MICRF114 Wireless Remote Key Fob Schematic (Figure A-5)
Key Fob Bill of Materials (BOM) (Table A-1.)
FIGURE A-1:
2015 Microchip Technology Inc.
KEY FOB PCB ASSEMBLY - TOP SILKSCREEN
DS50002433A-page 33
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
DS50002433A-page 34
FIGURE A-2:
KEY FOB PCB ASSEMBLY – BOTTOM SILKSCREEN
FIGURE A-3:
KEY FOB PCB ASSEMBLY - TOP COPPER
FIGURE A-4:
KEY FOB PCB ASSEMBLY - BOTTOM COPPER
2015 Microchip Technology Inc.
MICRF114 WIRELESS REMOTE KEY FOB SCHEMATIC
PCB_An tenna_434MHz
VCC
C1
CR2032
100 uF
6.3V
TANT-B
BK-912
GND
GND
C2
C3
4700pF
50V
0402
470 pF
50V
0402
L1
GND
GND
Radio_SCK
IC1
2
SCK
SDI
MICRF114T-I/OT
RFO
OSC
4
6
L2
C6
L3
27 nH
0402
HiQ
5.6 pF
50V
0402
HiQ
18 nH
0402
HiQ
C5
6.8 pF
50V
0402
HiQ
5
VSS
Radio_SDA
1
434 MHz
220 nH
0603
HiQ
3
BATT1
1
VCC
VCC
VDD
VCC
2
2015 Microchip Technology Inc.
FIGURE A-5:
X1
VCC
1
4
3
2
1
13.56MHz
7B-13.560MEEQ-T
MBR0520
SOD -123
Radio_SCK
Radio_SDA
GND
C8
8.2 pF
50V
0402
HiQ
3
D1
TEST
C7
8.2 pF
50V
0402
HiQ
RF
GND
GND
GND
GND
Solder hole 1.27 mm
VCC
LD1
R
GND
1
C4
ICSP_MCLR
ICSP_PGC
220R
0402
5%
VCC
ICSP
7
6
5
4
3
2
6
5
4
3
2
1
ICSP_ PGC
ICSP_ PGD
ICSP _MCLR
9
EP
1 uF
6.3V
0402
VddCPS0/C1IN+/DACOUT/TX/CK/SDO/SS/P1B/MDOUT/ICSPDAT/AN0/RA0
VddCPS0 /C1IN+/DACOUT/TX/CK/SDO/SS/P1B/M DOUT/ICSPDAT/AN0/RA0
CPS1/VREF/C1IN0-/SRI/RX/DT/SCL/SCK/MDMIN/ICSPCLK/AN1/RA1
CPS1/VREF/C1IN0
-/SRI/RX/DT/SCL/SCK/MDM IN/ICSPCLK/AN1/RA1
CPS2/C1OUT/SRQ/T0CKI/CCP1/P1A/FLT0
CPS2
/C1OUT/SRQ/T0CKI/CCP1/P1A/FLT0 /SDA/SDI/INT/MDCIN1/AN2/RA2
MCLR/VPP/T1G/SS/RA3
MDCIN2
/T1G/P1B/TX/CK/SDO/CLKR/C1IN1 -/T1OSO/CLKOUT/
T OSC2/CPS3/AN3/RA4
MDCIN2/T1G/P1B/TX/CK/SDO/CLKR/C1IN1-/T1OSO/CLKOUT/OSC2/CPS3/AN3/RA4
8
Vss
RX/DT/CCP1/P1A/SRNQ/T1CKI/T1OSI/OSC1/CLKIN/RA5
Vss RX/DT/CCP1/P1A/SRNQ/T1CKI/T
/ 1OSI/OSC1/CLKIN/RA5
ICSP_PGD
IC2
VCC
R1
Radio_SDA
Radio_SCK
RED
Solder hole 2.54 mm
R2
GND
R3
1k
0402
5%
PIC12LF1840
1k
0402
5%
SW1
Up
DS50002433A-page 35
SW3
Left
SW4
Right
GND
SW2
GND
Enclosure, Key Fob, 4-button, Clear Red
ICSP_ PGC
ICSP_ PGD
GND
Down
Polycase
GND
R4
1k
0402
5%
GND
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
TABLE A-1:
KEY FOB BOM
Designator
1
BT1
—
Holder Coin Cell 20 mm
SMD
Memory Protection
Devices
BK-912
1
@BT1
—
Battery Lithium Coin 3V
20 mm
Panasonic - BSG
CR2032
1
C1
100 µF
Do Not Populate
Capacitor, Tantalum,
6.3V, +/-10%, SMT 1210
AVX Corporation
TPSB107K006R0400
1
C2
4.7 nF
Capacitor, Ceramic, 50V, Murata Electronics
+/-10%, X7R, SMT
North America
GRM155R71H472KA01J
1
C3
470 pF
Capacitor, Ceramic, 50V, Murata Electronics
+/-10%, NP0, SMT
North America
GRM1555C1H471JA01D
1
C4
1 µF
Capacitor, Ceramic, 50V, Murata Electronics
+/-10%, X5R, SMT
North America
GRM155R60J105KE19D
1
LD1
Red
Diode, Light Emitting,
Red, Clear
Kingbright
APTD1608SURCK
1
D1
MBR0520LT1G
Do Not Populate
Diode, Schottky, 20V,
500 mA, SMT SOD123
On Semiconductor
MBR0520LT1G
1
R1
220Ω
Resistor, 5%,
±100 ppm/C, SMT 0402
Yageo
RC0402JR-07220RL
3
R2, R3, R4
1 kΩ
Resistor, 5%,
±100 ppm/C, SMT 0402
Panasonic Electronic ERJ-2GEJ102X
Components
1
enclosure
—
Enclosure, Key Fob,
4-button, Clear Red
Polycase
FB-20-4*9
1
IC1
MICRF114T-I/OT
IC RF MICRF114T-I-OT
Sub GHz transmitter
SOT 23-6
Microchip
Technology Inc.
MICRF114T-I/OT
1
IC2
PIC12LF1840T-I/
MF
IC MCHP MCU 8-BIT
32 MHz 7 kB 256B
DFN-8
Microchip
Technology Inc.
PIC12LF1840T-I/MF
1
L1
220 nH
Inductor, Ceramic,
±5%,SMT 0603
Johanson
Technology Inc.
L-14CR22JV4T
1
L2
5.6 nH
Inductor, Ceramic,
±5%,SMT 0402
Johanson
Technology Inc.
L-07C27NJV6T
1
L3
18 nH
Inductor, Ceramic,
±5%,SMT 0402
Johanson
Technology Inc.
L-07C18NJV6T
1
C5
6.8 pF
Capacitor, Ceramic, 50V
0.25 pF NP0 0402
Johanson
Technology Inc.
500R07S6R8CV4T
1
C6
5.6 pF
Capacitor, Ceramic, 50V
0.25 pF NP0 0402
Johanson
Technology Inc.
500R07S5R6CV4T
2
C7, C8
8.2 pF
Capacitor, Ceramic, 50V
0.25 pF NP0 0402
Johanson
Technology Inc.
500R07S8R2CV4T
1
X1
13.56 MHz
CRYSTAL 13.56 MHz
10 pF SMD
L5.2W3.5H0.9
TXC
CORPORATION
7B-13.560MEEQ-T
DS50002433A-page 36
Value
Description
Manufacturer
Manufacturer Part
Number
Qty
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Appendix B. SX1239 Receiver PICtail™ Daughter Board
Schematics
B.1
INTRODUCTION
This appendix provides the following information:
• SX1239 Receiver PICtail™ Daughter Board PCB Assembly (Figure B-1)
• SX1239 Receiver PICtail Daughter Board Schematic (Figure B-2)
• SX1239 Receiver PICtail Daughter Board BOM (Table B-1)
FIGURE B-1:
2015 Microchip Technology Inc.
SX1239 RECEIVER PICtail™ DAUGHTER BOARD PCB
ASSEMBLY
DS50002433A-page 37
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
FIGURE B-2:
DS50002433A-page 38
SX1239 RECEIVER PICtail™ DAUGHTER BOARD SCHEMATIC
2015 Microchip Technology Inc.
TABLE B-1:
868/915 MHz
315/434 MHz
Common
Band
Select
Note:
Qty
SX1239 RECEIVER PICtail™ DAUGHTER BOARD BOM
Designator
Value
Description
Manufacturer
Manufacturer
Part Number
1
A1
—
Wire, 24AWG, Solid, PVC
Insul, Yellow
Alpha Wire
3050/1 YL005
1
C3, C4
0.1 µF
Cap, Ceramic, 0.1 µF, 16V
+/-10% X7R
Murata Electronics
North America
GRM155R71C104KA88D
4
C6, C7,
C8, C9
15 pF
Cap, Ceramic, 15 pF, 50V
+/-5% COG
Murata Electronics
North America
GRM1555C1H150JZ01D
1
E1
—
Pin Receptacle,
.015/.025 Dia, 0667 Series
Mill-Max
0667-0-15-01-30-27-10-0
Manufacturing Corp.
1
J1
—
Terminal strip, 2X14,
0.100 sp, Rt Angle, 0.025
sq post
SAMTEC
TSW-114-08-F-D-RA
1
S1
—
Switch, DPDT, Miniature
Slide, Vert, SMD
E-Switch
EG1390A
1
U1
—
RF Transceiver,
433/868/915 MHz, Low
Power, QFN24
Microchip
Technology Inc.
SX1239T - I/LY
1
Y1
32
MHz
Crystal, 32.0000 MHz,
TXC
10 pF, SMD TXC Series 7M CORPORATION
7M-32.000MEEQ-T
1
C2
1.2 pF
Cap, Ceramic, 1.2 pF, 50V
+/-0.25 pF COG
Murata Electronics
North America
GRM1555C1H1R2CZ01D
1
L2
68 nH
Inductor, 68 nH, 140 mA,
Air Core, 5%
Murata Electronics
North America
LQW15AN68NJ00D
2
C1, C5
22 pF
Cap, Ceramic, 22 pF, 50V
+/-5% COG
Murata Electronics
North America
GRM1555C1H220JZ01D
1
L1
12 nH
Inductor, 12 nH, 500 mA,
Air Core, 5%
Murata Electronics
North America
LQG15HS12NJ02D
1
C1
4.7 pF
Cap, Ceramic, 4.7 pF, 50V
Murata Electronics
North America
GRM1555C1H4R7CZ01D
1
L1
13 nH
Inductor, 13 nH, 500 mA,
Air Core, 5%
TDK Corporation
MLG1005S13NJ
1
C5
3.6 pF
Cap, Ceramic, 3.6 pF, 50V
+/-5% COG
Murata Electronics
North America
GRM1555C1H3R6CZ01D
Designator A1 Wire Antenna: Cut to 6.75 inches Overall Length (OAL).
2015 Microchip Technology Inc.
DS50002433A-page 39
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
NOTES:
DS50002433A-page 40
2015 Microchip Technology Inc.
MICRF114 WIRELESS SECURITY
REMOTE CONTROL DEVELOPMENT
KIT USER’S GUIDE
Appendix C. Embedded Security Development Board
Schematics
C.1
INTRODUCTION
This appendix provides the following information:
• Embedded Security Development Board PCB Assembly (Figure C-1)
• Embedded Security Development Board Schematics (Figure C-2 and Figure C-3)
• Embedded Security Development Board BOM (Table C-1)
FIGURE C-1:
EMBEDDED SECURITY DEVELOPMENT BOARD PCB ASSEMBLY
2015 Microchip Technology Inc.
DS50002433A-page 41
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
FIGURE C-2:
DS50002433A-page 42
EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (1 OF 2)
2015 Microchip Technology Inc.
FIGURE C-3:
EMBEDDED SECURITY DEVELOPMENT BOARD SCHEMATIC (2 OF 2)
2015 Microchip Technology Inc.
DS50002433A-page 43
MICRF114 Wireless Security Remote Control Development Kit User’s Guide
TABLE C-1:
Qty
1
EMBEDDED SECURITY DEVELOPMENT BOARD BOM
Designator
Value
VDD
VDD
1
GND
1
BT1
3
Manufacturer
Manufacturer Part
Number
Keystone
5010
GND
Keystone
5011
BK-885
MPD (Memory Protection Devices) BK-885
C8, C9,
C17
8 pF
TDK Corporation
C1608C0G1H080D
2
C10, C11
9 pF
TDK Corporation
C1608C0G1H090D
1
C18
10 pF
TDK Corporation
C1608C0G1H100D
1
C19
100 pF
TDK Corporation
C1608C0G1H101J
11
C1-C7,
C14, C16,
C21, C22
0.1 µF
Murata Electronics North America
GRM188R71E104KA01D
5
C12, C13,
C15, C20,
C23
1 µF
Murata Electronics North America
GRM188R61A105MA61D
1
D1
B0520WS
Diodes Inc.
B0520WS-7-F
1
D3
BAT54
Fairchild Semiconductor
BAT54
14
D2, D4-D16 LTST-C191GKT
Lite-On
LTST-C191GKT
1
J1
Sullins
PPPC142LFBN-RC
1
J3
UX60-MB-5ST
Hirose Electric Co Ltd
UX60-MB-5ST
1
J4
Do Not Populate
Sullins
PBC06SBAN
1
J5
—
Sullins
PBC06SBAN
1
J6
—
Sullins
PBC03SAAN
2
J7, J8
—
Sullins
PBC02DAAN
1
J9
—
Sullins
PBC06SAAN
1
J10
—
Sullins
PBC14DAAN
1
LCD1
C0216CZ-FSW-FBW-3V3
Newhaven Displays
C0216CZ-FSW-FBW-3V3
—
1
P20
Sullins
PPPC061LGBN-RC
1
Q2
IRLML6302TRPBF
International Rectifier
IRLML6302TRPBF
4
R1, R18,
R20, R24
100
Stackpole Electronics International RMCF0603FT100R
16
R2,
R4-R16,
R28-R29
330
Stackpole Electronics International RMCF0603FT330R
1
R26
1 k
Stackpole Electronics International RMCF0603FT1K00
5
R17, R19,
R25, R30
10 k
Stackpole Electronics International RMCF0603FT10K0
1
R27
10 kW
Do Not Populate
Stackpole Electronics International RMCF0603FT10K0
1
R21
12 k
Stackpole Electronics International RMCF0603FT12K0
1
R22
20 k
Stackpole Electronics International RMCF0603FT20K0
1
R23
28 k
Stackpole Electronics International RNCP0603FTD28K0
1
R31
100 k
Stackpole Electronics International RMCF0603FT100K
1
R3
1 M
Stackpole Electronics International RMCF0603FT1M00
1
S1
—
E-Switch
EG1390B
9
SW1-SW8,
MCLR
—
Omron
B3S-1000P
1
U1
P16LF1947-I/PT
Microchip Technology Inc.
PIC16LF1947-I/PT
DS50002433A-page 44
2015 Microchip Technology Inc.
TABLE C-1:
Qty
EMBEDDED SECURITY DEVELOPMENT BOARD BOM (CONTINUED)
Designator
1
U2
1
1
Value
Manufacturer
Manufacturer Part
Number
MCP2200
Microchip Technology Inc.
U3
MCP1703-3.3
Microchip Technology Inc.
MCP1703T-3302E/MB
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, Y3
32.768 kHz
Abracon
ABS06-32.768KHZ-T
2015 Microchip Technology Inc.
MCP2200-I/MQ
DS50002433A-page 45
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07/14/15
DS50002433A-page 46
2015 Microchip Technology Inc.