MPLAB® Starter Kit for
Intelligent.Integrated.Analog
User’s Guide
2013 Microchip Technology Inc.
DS50002172A
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and may be superseded by updates.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
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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,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
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,
MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O,
Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA
and Z-Scale 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.
GestIC and ULPP are registered trademarks 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.
© 2013, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62077-268-3
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS50002172A-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.
2013 Microchip Technology Inc.
Object of Declaration: DM240015, MPLAB® Starter Kit for Intelligent.Integrated.Analog
2013 Microchip Technology Inc.
DS50002172A-page 3
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 4
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Chapter 1. Introduction to the Starter Kit
1.1 Overview ...................................................................................................... 13
1.2 What’s in the Kit ........................................................................................... 14
1.3 Hardware ...................................................................................................... 14
1.4 Installing Device Drivers for the Starter Kit ................................................... 18
Chapter 2. The Demonstration Application
2.1 Start-up Display ............................................................................................ 19
2.2 Sections of the Demo ................................................................................... 19
2.3 Other Hardware Resources on the Starter Kit .............................................. 23
Chapter 3. Developing New Applications
3.1 Reprogramming the Starter Kit Using the PKOB ......................................... 25
3.2 Hardware Considerations for New Applications ........................................... 27
Chapter 4. Troubleshooting ........................................................................................ 29
Appendix A. Starter Kit Schematics........................................................................... 31
Appendix B. LCD Panel Information .......................................................................... 35
Appendix C. Optional Microphone Amplifier............................................................. 39
Index ............................................................................................................................. 41
Worldwide Sales and Service .................................................................................... 42
2013 Microchip Technology Inc.
DS50002172A-page 5
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 6
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
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
“DSXXXXXXXXXA”, where “XXXXXXXXX” 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
MPLAB Starter Kit for Intelligent.Integrated.Analog. 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
Note:
2013 Microchip Technology Inc.
Format limitations do not permit the use of the full Starter Kit name in the
page headers in this document. All references to the “MPLAB Starter Kit for
PIC24F Integrated Analog” throughout this document are understood to
refer to the “MPLAB Starter Kit for Intelligent.Integrated.Analog”.
DS50002172A-page 7
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
DOCUMENT LAYOUT
This document describes how to use the MPLAB Starter Kit for
Intelligent.Integrated.Analog as a development tool to emulate and debug firmware on
a target board, as well as how to program devices. The document is organized
as follows:
• Chapter 1. “Introduction to the Starter Kit” provides a brief overview and
hardware description of the Starter Kit.
• Chapter 2. “The Demonstration Application” describes the Starter Kit’s
preprogrammed application.
• Chapter 3. “Developing New Applications” describes the important programming
and hardware considerations when developing new Starter Kit applications.
• Chapter 4. “Troubleshooting” describes common issues and their solutions.
• Appendix A. “Starter Kit Schematics” provides detailed schematics for the
Starter Kit.
• Appendix B. “LCD Panel Information” provides technical details about the
custom Microchip LCD panel.
• Appendix C. “Optional Microphone Amplifier” describes the optional
microphone amplifier for use in voice applications.
DS50002172A-page 8
2013 Microchip Technology Inc.
Preface
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Represents
Examples
Arial font:
Italic characters
Initial caps
Referenced books
MPLAB® IDE User’s Guide
Emphasized text
...is the only compiler...
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
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path
File>Save
Bold characters
A dialog button
Click OK
A tab
Click the Power tab
A key on the keyboard
Press <Enter>, <F1>
Sample source code
#define START
Filenames
autoexec.bat
File paths
c:\mcc18\h
Keywords
_asm, _endasm, static
Command line options
-Opa+, -Opa-
Bit values
0, 1
Constants
0xFF, ‘A’
Italic Courier New
A variable argument
file.o, where file can be
any valid filename
Square brackets [ ]
Optional arguments
mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses...
Replaces repeated text
var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}
Text in angle brackets < >
Courier New font:
Plain Courier New
2013 Microchip Technology Inc.
DS50002172A-page 9
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
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.
RECOMMENDED READING
This user’s guide describes how to use the MPLAB Starter Kit for
Intelligent.Integrated.Analog. Other useful documents are listed below. The following
Microchip documents are available and recommended as supplemental reference
resources.
Readme Files
For the latest information on using other tools, read the tool-specific Readme files in
the Readmes subdirectory of the MPLAB IDE installation directory. The Readme files
contain update information and known issues that may not be included in this user’s
guide.
PIC24F Family Reference Manual
This reference manual explains the operation of the PIC24F microcontroller family
architecture and peripheral modules. The specifics of each device family are discussed
in the individual family’s device data sheet.
This useful manual is online in sections at the Technical Documentation section of the
Microchip web site. Refer to these sections for detailed information on PIC24F device
operation.
PIC24FJ128GC010 Device Data Sheet (DS30009312) and Flash Programming
Specification (DS39970)
Refer to this device data sheet for device-specific information and specifications. Also,
refer to the appropriate device flash programming specification for information on
instruction sets and firmware development. These files may be found on the Microchip
web site or from your local sales office.
MPLAB® XC16 C Compiler User’s Guide (DS52071)
This document helps you use Microchip’s MPLAB XC16 C compiler to develop your
application. MPLAB XC16 is a GNU-based language tool, based on source code from
the Free Software Foundation (FSF). For more information about FSF, see
www.fsf.org.
MPLAB® X IDE User’s Guide (DS52027)
This document describes how to use the MPLAB X IDE, Microchip’s latest version of
its integrated development environment, as well as the MPLAB Project Manager,
MPLAB Editor and MPLAB SIM Simulator. Use these development tools to help you
develop and debug application code.
DS50002172A-page 10
2013 Microchip Technology Inc.
Preface
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This
web site is used as a means to make files and information easily available to
customers. Accessible by using your favorite Internet browser, the web site 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, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer change 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 web site 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, assemblers, linkers
and other language tools. These include all MPLAB C compilers; all MPLAB
assemblers (including MPASM™ Assembler); all MPLAB linkers (including
MPLINK™ Object Linker); and all MPLAB librarians (including MPLIB™ Object
Librarian).
• Emulators – The latest information on Microchip in-circuit emulators.This
includes the MPLAB REAL ICE™ and MPLAB ICE 2000 in-circuit emulators.
• In-Circuit Debuggers – The latest information on the Microchip in-circuit
debuggers. This includes MPLAB ICD 3 in-circuit debuggers and PICkit™ 3
debug express.
• MPLAB® IDE – The latest information on Microchip MPLAB IDE, the Windows®
Integrated Development Environment for development systems tools. This list is
focused on the MPLAB IDE, MPLAB IDE Project Manager, MPLAB Editor and
MPLAB SIM Simulator, as well as general editing and debugging features.
• Programmers – The latest information on Microchip programmers.
These include production programmers, such as MPLAB REAL ICE™ in-circuit
emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device
programmers. Also included are non-production development programmers, such
as PICSTART® Plus and PICkit 2 and 3.
2013 Microchip Technology Inc.
DS50002172A-page 11
MPLAB® Starter Kit for Intelligent.Integrated.Analog 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 web site at:
http://www.microchip.com/support
REVISION HISTORY
Revision A (June 2013)
This is the initial release of this document.
DS50002172A-page 12
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Chapter 1. Introduction to the Starter Kit
Thank you for purchasing the MPLAB Starter Kit for Intelligent.Integrated.Analog.
This board is intended to introduce the PIC24FJ128GC010 family of advanced analog
microcontrollers and demonstrate its wide range of on-chip analog features.
This chapter introduces the Starter Kit and provides an overview of its features. Topics
covered include:
•
•
•
•
1.1
Overview
What’s in the Kit
Hardware
Installing Device Drivers for the Starter Kit
OVERVIEW
The Starter Kit board includes many analog features to showcase the capabilities of the
PIC24FJ128GC010 family. The included 100-pin microcontroller integrates the
following analog features:
•
•
•
•
•
A high-speed (10 Msps), 12-bit A/D Converter with multiple input channels
A high-accuracy, 16-bit Sigma-Delta A/D Converter with two input channels
Dual 10-bit, voltage output Digital-to-Analog Converters (DACs)
Two op amps and three comparators
mTouch™ capacitive sensing
In addition, the Starter Kit board adds external analog and digital sensors, including:
•
•
•
•
•
•
•
Ambient light sensor
Digital temperature sensor
Microphone
Headphone/line amplifier (stereo)
Precision, low-drift voltage reference
Optional expansion area for a Microchip wireless radio module (MRF24J40A)
Optional NTC thermistor
The board comes preprogrammed with a menu driven demonstration application that
highlights most of the functions on the board. The application can be overwritten with
your own software, using the PICkit On Board (PKOB) programmer; no external
programmer is needed.
The preprogrammed application operates on a stand-alone basis; other than power
from a USB connection, no computer or client-side software is required for the board
to operate.
The low operating current (7 mA) of the PIC24FJ128GC010 microcontroller means the
entire board can be powered from a USB connection or optionally, by battery. The
entire Starter Kit itself draws approximately 25 mA from the USB host when running the
demo application; the actual current varies slightly between different segments of the
application. In Reduced Power mode, the total current draw for the Starter Kit is 1.7 mA,
the majority of which is drawn by the LEDs, with about 150 µA for the microcontroller.
2013 Microchip Technology Inc.
DS50002172A-page 13
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
1.2
WHAT’S IN THE KIT
Your MPLAB Starter Kit for Intelligent.Integrated.Analog should contain the following:
• MPLAB Starter Kit board
• USB cable (A to mini-B)
• An insert card with links to the web site for this manual and the demo application
1.3
HARDWARE
Figure 1-1 identifies the major features of the Starter Kit.
FIGURE 1-1:
STARTER KIT BOARD, FRONT AND BACK VIEWS
1
14
13
12
11
10
1
2
9
8
7
3
4
5
6
1
15
16
DS50002172A-page 14
2013 Microchip Technology Inc.
Introduction to the Starter Kit
1. PICkit On Board (PKOB) USB Programmer/Debugger and Connector
The PKOB is used to program the PIC24FJ128GC010 MCU on the Starter Kit. It connects via USB to MPLAB X, Microchip’s programming and debugging environment,
and eliminates the need for an external hardware programmer. For more information
on loading your own application into the Starter Kit (or reloading the original
application), see Section 3.1 “Reprogramming the Starter Kit Using the PKOB”.
2. LCD Display
This is a custom passive display panel developed exclusively for Microchip Technology.
The panel is an STN, positive-sense LCD, organized as a 36-segment by 8-column
display. It includes a 37 x 8 dot-matrix array for alphanumeric or special characters and
17 special purpose display icons (useful for many consumer applications) composed
of 29 addressable elements.
The LCD panel is directly driven from the I/O pins of the PIC24FJ128GC010 microcontroller; a separate display controller is not required. Multiplexing of the display
elements is described in Appendix B. “LCD Panel Information”.
3. mTouch Navigation Touch Pads
These three navigation buttons are designed into the PCB itself and are configured to
respond to the user’s body capacitance when touched. Control of the touch sense
features are built on the PIC24F microcontroller’s on-chip Charge Time Measurement
Unit (CTMU) module, which uses a constant-current source to detect changes in the
pad’s capacitance. A more detailed description of the CTMU module’s operation is
provided in the “PIC24F Family Reference Manual”, “Charge Time Measurement
Unit (CTMU)” (DS39724). Additional information on the mTouch system is available at
www.microchip.com/mtouch.
The buttons are covered in detail in Section 2.1 “Start-up Display”.
4. SW1 Momentary Push Button
This is normally an open SPST push button connected to port pin, RD0. Pressing this button brings RD0 to logic low (ground). The demo application uses this switch to toggle
Sleep mode, as described in Section 2.2.9 “Entering Reduced Power (Sleep) Mode”.
5. User LEDs
These two red LEDs are tied to port pins. D1 is tied to RE7 and D2 is tied to RB6. A logical
‘1’ on the port pin will light the corresponding LED. When on, each draws 1 mA of current.
6. Potentiometer (R7)
This 10 kΩ trim potentiometer is connected to the analog input pin, AN19. It is configured as a voltage divider between SWITCHED_VDD and ground. See
Section 1.3.1.1 “SWITCHED_VDD Control” for more information.
7. USB Host and Device Connectors (J2 and J3)
Connectors, J2 (USB-A) and J3 (USB mini-B), allow the Starter Kit board to provide
USB host and device functionality. These two USB connectors share the microcontroller’s single USB port; therefore, only one device can be connected at a time. The
preprogrammed application is configured for device functionality only.
When the board is connected through J2, VBUS is used to power the
PIC24FJ128GC010 microcontroller (both VDD and SWITCHED_VDD). LED D4 lights
when VBUS is detected. The PKOB is not powered.
8. MCLR Push Button (S2)
Pressing the switch pulls the MCLR pin low, causing a Reset for the microcontroller and
any application that may be running.
2013 Microchip Technology Inc.
DS50002172A-page 15
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
9. Digital Temperature Sensor (U9) and Jumper, JP7
The TC77 is a digital temperature sensor in a SOT-23 package. It uses an SPI interface
to communicate to the microcontroller. The TC77 is powered as part of the
SWITCHED_VDD bus.
When installed (default), jumper, JP7, connects the TC77 chip select to port pin, RE9.
If the TC77 is not needed, removing JP7 allows port pin, RE9, to be used as a
general purpose I/O resource.
10. Indoor Ambient Light Sensor (Q1)
Q1 is a phototransistor, used to detect indoor ambient light level. The sensor is designed
to output a current in the range of 5 µA to 300 µA, as the light flux varies from 10 to
1000 lux. This current flows through R11, causing a voltage of VDD – (ISENSOR /R11) to
be applied to analog input pin, AN22. The resulting DC voltage is inversely proportional
to the amount of light on the sensor, ranging from 3.3V (dark) to 50 mV (very bright).
The value of R11 (27 kΩ) limits the upper light level to approximately 400 lux. (As a
reference, the average ambient light in an office is 300 to 400 lux.)
11. Audio Output Driver and Output Jack (3.5 mm)
The microcontroller’s two 10-bit DACs are connected via buffer op amp, U3
(MCP6022), to this jack. DAC1 (port pin, RG9) is connect to the right channel and
DAC2 (port pin, RB13) is connected to the left channel. The op amp is configured as a
unity gain buffer. The op amp buffer is powered from the SWITCHED_VDD bus.
A simple RC filter with a cut point of -3 dB point at 16 kHz is in series with each output.
When connecting to a high-impedance input (such as external powered speakers), the
15Ω series resistor has little effect on the amplitude.
Note:
Each DAC is capable of driving full-scale levels (i.e., 3.3V p-p). The
15Ω limiting resistor, in series with the outputs, should limit the output to a
standard 16Ω headset to approximately 1.5V maximum. However, this
level may exceed safe listening levels. When driving headphones, it is
recommended that the output level be kept under 200 mV p-p.
12. Electret Microphone
This is a simple, unamplified microphone, which is biased at 1/2 of the SWITCHED_VDD
voltage (about 1.65V). The output is AC-coupled and brought out to Pin 5 of J7/J8. For
voice use, the output will need to be boosted to approximately 20X.
13. Precision Voltage Reference Section Jumper (J9)
The jumper selects the on-board, precision 2.5V voltage reference or an externally
applied reference on the CH1+ (default) connection on J7/J8 for use with the
Sigma-Delta A/D Converter. The default configuration is VDD as the reference, which
is also the default configuration for the preprogrammed demonstration.
For low noise and more accurate measurements, the 2.5V precision reference is
required. Since the input range of the A/D is VSS to VREF, using the 2.5V reference
reduces the converter’s input range.
DS50002172A-page 16
2013 Microchip Technology Inc.
Introduction to the Starter Kit
14. Breakout Connectors (J7/J8)
Connectors, J7 and J8, provide a direct interface to select functions of the
PIC24FJ128GC010 microcontroller. Connector, J7, is a standard riser and can accept
standard 0.025” square posts. J8 is a parallel connected set of through holes. The
mapping of microcontroller pins to riser pins is listed in Table 1-1.
Many of the microcontroller pins are multiplexed with several functions. Refer to
Appendix A. “Starter Kit Schematics” and the PIC24FJ128GC010 device data
sheet if you wish to remap the pins for a custom application.
TABLE 1-1:
MAPPING OF BREAKOUT CONNECTOR PINS TO
MICROCONTROLLER FUNCTIONS
J7/J8 Pin
Function
Device Pin
J7/J8 Pin
Function
Device Pin
1
VDD
—
21
GND
—
2
VDD
—
22
CH1+ IN
35
3
GND
—
23
CH1- IN
36
4
GND
—
24
GND
—
5
MIC OUT
—
25
OPA2- IN
49
6
GND
—
26
OPA2+ IN
50
7
DAC1 OUT
14
27
GND
—
8
GND
—
28
GND
—
9
DAC2 OUT
42
29
LIGHT OUT
92
10
GND
—
30
WAKE
28
11
1 IN
6
31
CS RF
11
12
2 IN
8
32
LED2
26
13
GND
—
33
SCK
76
14
OPA2 OUT
22
34
SDO
81
15
GND
—
35
SDI
82
16
AVREF- IN
24
36
WAKE
28
17
AVREF+ IN
25
37
INT IN
4
18
GND
—
39
LED1
5
19
CH0+ IN
33
39
TC77 CS
19
20
CH0- IN
34
40
POT OUT
12
15. C2032 Battery Holder (BT1)
This allows the Starter Kit (i.e., those portions driven from the PIC24FJ128GC010
microcontroller) to be powered from a single coin cell, as opposed to USB power.
Jumper, J10, must also be configured to use the battery power feature.
16. RF Transceiver Footprint (U2)
This 14-pin area is designed to accept an optional Microchip MRF42J40A wireless
transceiver, for use with wireless application development. Note that the transceiver
requires permanent surface mounting to this area. The preprogrammed demonstration
does not support the use of the wireless transceiver.
2013 Microchip Technology Inc.
DS50002172A-page 17
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
1.3.1
Power Sources
The Starter Kit can be powered in one of three ways, depending on the usage:
• PKOB USB Connector (J6). This will power the entire MPLAB Starter Kit board,
including the PICkit programming circuitry. Jumper, J10, must be placed into the
USB position (Pins 2-3), which is the default position. Both power LEDs (D4 and
D5) will light.
• USB Device Port (J3). In this mode, only those portions of the board driven by the
PIC24FJ128GC010 are functional; the PKOB is not powered. Jumper, J10, must
be placed into the USB position (Pins 2-3), which is the default position. Only
LED, D4, will light.
• CR2032 Coin Cell (not supplied). Only those portions of the board driven by the
PIC24FJ128GC010 microcontroller are functional; the PKOB is not powered.
Jumper, J10, must be placed into the BATTERY position (Pins 1-2). While
operating from a battery, the USB LEDs do not light.
1.3.1.1
SWITCHED_VDD CONTROL
In order to reduce power consumption of the Starter Kit, certain circuits can be powered
on or off by the microcontroller. This is controlled by port pin, RA9 (WAKE). Asserting
this pin (logic ‘1’) turns VDD on to the following devices:
•
•
•
•
•
•
•
MCP6022 headphone buffer (U3)
Potentiometer (R7)
TC77 temperature sensor (U8)
Ambient light sensor (Q1)
Precision voltage reference (U11)
Electret Microphone (MK1)
Optional wireless module (U2) (also is the WAKE function to the module)
When SWITCHED_VDD is off, power supply current is reduced approximately 3.5 mA
without the wireless module installed. Since the wireless module shares its WAKE pin
with the control line for SWITCHED_VDD, the module will not be able to go into Sleep
mode. Installing the wireless module adds approximately 21 mA of current requirement
whenever SWITCHED_VDD is asserted.
1.4
INSTALLING DEVICE DRIVERS FOR THE STARTER KIT
The USB mode firmware requires the generic Microsoft® WinUSB driver
(winusb.dll) to be in the directory, C:\\windows\system32. This driver should
already be installed on computers running Microsoft Windows. When the Starter Kit
board is attached for the first time, a notification window that drivers are being installed
may briefly appear.
When the drivers are properly installed, the Starter Kit will appear as a USB COM port
when plugged into the USB device port (J3).
DS50002172A-page 18
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Chapter 2. The Demonstration Application
This chapter describes the preprogrammed demonstration on the Starter Kit. The application is essentially free-standing and does not require a host application running on a
computer. The board can be powered from either USB mini-B connector (J3 or J6).
2.1
START-UP DISPLAY
The application displays a 24-hour clock (hh:mm, with flashing colon). The
Microchip logo icon appears in the lower right corner of the LCD; LED, D4, is
also lit. If this is not correct, try unplugging and replugging the USB cable. Refer to
Chapter 4. “Troubleshooting” for more information.
The three mTouch touch pads are used by the demo code for data entry and navigation:
• Left Arrow (): Decrement current display value or go to the previous demo
• Circle (): Enter data or select the next submenu
• Right Arrow (): Increase current display value or go to the next demo
The mTouch software included in the application waits a preset time to verify the pad
has been touched. When the software decodes a “finger down” event, the red LED, D1,
will light. When the finger is lifted off the pad, the LED is turned off and the demo application executes the action. Tapping the pad for less than the programmed time (about
100 ms) will not cause a press to be detected.
2.2
SECTIONS OF THE DEMO
The demo application is divided into several foreground sections, with each dedicated
to showing a unique function of the microcontroller. In addition to these, the demo
application runs a continuous background process to export data over the USB port.
The sections are organized as a closed-loop menu, meaning they will repeat once the
end is reached if the key is pressed. The sections are ordered as follows:
•
•
•
•
•
•
•
Clock
Sigma-Delta A/D
Pipelined A/D (also includes the ambient light sensor)
Stereo DAC
Temperature Sensor (external TC77 sensor)
LCD Test
Audio Input (microphone)
Some sections (like setting the clock) have submenus, which are selected using
the pad. Detailed information on each section follows.
2013 Microchip Technology Inc.
DS50002172A-page 19
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
2.2.1
Clock Demo
The 24-hour clock is the home page for the demo. This is a 24-hour clock with a blinking
colon for seconds. The clock uses the on-board 32 kHz Secondary Oscillator (SOSC)
for an accurate time base.
To set the clock to the proper time:
1. Press when the LCD is displaying the clock.
2. The display shows, hh:mm, where ‘hh’ is the current hour and ‘mm’ is the current
minute. The first hours digit begins to blink, indicating that is the current digit to
set.
3. Press the pad to decrement the hours digit or press to increment the digit.
Since this is a 24-hour setting, the digits cycle through 0 > 1 > 2 > 0... .
4. When the correct digit is shown, press to save it. The current digit stops
blinking and the next digit begins to blink.
5. Repeat Steps 2 through 4 for each of the remaining digits until the display is
showing the correct time.
Note that there is no back key to return to a previous digit. If you make an error after
pressing the key, you have to start over.
2.2.2
Sigma-Delta A/D Demo
This section demonstrates the Sigma-Delta A/D Converter. For more information on
this module and its feature set, refer to the “PIC24F Family Reference Manual”, “16-Bit
Sigma-Delta A/D Converter” (DS30687).
Pressing the pad from the clock demo causes the LCD to momentarily display,
“SD ADC CH:DATA”. “CH:DATA” is the display format of the A/D result, where “CH” is
the Sigma-Delta A/D channel and “DATA” is a 16-bit signed hexadecimal value. Positive
values are in the range of 0000h to 7FFFh. Due to a slight offset voltage, the display may
indicate a small negative voltage (FFC0h to FFFFh). If the CH+/CH- inputs are
swapped, the display will show negative values (a range of 8000h to 0000h).
The demo uses CH1 to read an externally applied voltage with SVDD (3.3V) as the A/D
voltage reference. The precision 2.5V reference can be used if the demo application is
modified (or replaced with custom code) to use CH1+ as the reference and
measurements are taken with the CH0 channel.
The input amplifier for the Sigma-Delta A/D is differential; that is, you can apply a
differential voltage across the two inputs. This is why swapping the inputs in the demo
generates a negative value. The amplifier has different gain settings but in the demo, it
is set for a gain of 1.
It is also possible to make a single-ended measurement with the Sigma-Delta A/D
Converter by applying a voltage to one terminal, while the other is the ground reference.
To do this, with using SVDD as a reference:
1. Set jumper, J9, to the CH1+ position.
2. Connect an external jumper wire between CH1- (J7, Pin 23) and AVSS (any of
the GND pins on J7).
3. Connect the voltage to be measured to CH1+ (J7, Pin 22). The voltage must be
in the range of 0V to 3.3V.
DS50002172A-page 20
2013 Microchip Technology Inc.
The Demonstration Application
2.2.3
Pipeline A/D Demo
This section of the demo uses the 12-bit Pipeline A/D Converter. For more information
on this module and its operation, refer to the “PIC24F Family Reference Manual”,
“12-Bit, High-Speed Pipeline A/D Converter” (DS30686).
The Pipeline A/D demo uses two analog input channels of the Pipeline A/D Converter
to display a pair of bar graphs. The bar graphs extend, left-to-right, across the LCD. The
top bar is the reading of the potentiometer, R7 (AN19), and the lower bar graph is the
ambient light sensor, Q1 (AN22). Turning the thumb wheel counterclockwise, or
covering the light sensor, reduces the corresponding bar.
While in this demo, pressing the pad advances through a sequence of display options.
On the first touch, the display shows, “19:xxxx”, where “xxxx” is the hexadecimal value
from the A/D of the potentiometer’s current setting (range, 0 to 0FFFh).
Pressing again displays, “22:yyyy”, where “yyyy” is the hexadecimal value from
the A/D of the light sensor; the value increases with less light.
Pressing again displays, “8:zzzz”, to display the converted value on AN8 (Pin 11
on JP7/8), where “zzzz” is the hexadecimal value of the voltage. If a voltage is not
present, and AN8 is not tied to VSS, this value will be random.
Pressing once more returns to the original display.
The data from the potentiometer, light sensor and AN8 are output over the USB port,
as described in Section 2.2.8 “Background Data Transmission”, via the background
data transmission process.
2.2.4
Stereo DAC Demo
This section generates three audio sine waves, one octave apart. The demo application calculates a 512-point sine wave and stores the 10-bit values for each point in
RAM. Timer4 is used to transfer (via the DMA bus) the RAM buffer to the DAC Output
registers. The output frequency is calculated, on-the-fly, as a passed parameter in Hz.
The frequencies of the three tones generated are: 110 Hz, 220 Hz and 440 Hz (A2, A3
and A4 or middle A).
The raw DAC output is passed through the 16 kHz low-pass filters and to the
headphone jack.The maximum voltage generated by the demo is 800 mV p-p.
Pressing the key steps through the three different frequencies.
Note:
2.2.5
Do not use excessive volume with this part of the demo. The maximum output
(800 mV p-p) may produce an audio output in excess of safe listening levels.
TC77 Temperature Sensor Demo
This section uses the TC77 temperature sensor (U8) to obtain the ambient temperature. This sensor transfers data to the microcontroller via the SPI bus. The chip select
is provided by the port pin, RE9, and is routed via jumper, JP7.
By default, the demo displays the board’s current temperature in degrees Centigrade.
Pressing converts the reading to Fahrenheit. The LCD displays the thermometer
icon and the appropriate temperature unit icon.
2.2.6
LCD Test Demo
This section of the demo displays all the available graphic icons and sequentially
flashes each one while showing their name in the dot-matrix portion of the LCD. This
demo repeats continuously until another portion is selected. There is no submenu.
2013 Microchip Technology Inc.
DS50002172A-page 21
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
2.2.7
Audio/Microphone Demo
This section uses a bar graph display to represent the output of the unamplified electret
microphone. The 12-bit Pipeline A/D Converter is used to measure the amplitude of the
output signal.
To use this section, it is necessary to first connect MIC OUT (J7/J8, Pin 5) to ADC1 IN
(Pin 11) with a jumper wire (22 gauge recommended). The display bar graph increases
(extends to the right) as the amplitude of the input signal increases. As the
microphone’s output is low, it is necessary to directly tap on it or blow into it to get
a response.
The on-board electret microphone is biased at 1.6 VDC and is unamplified. To use the
microphone for voice recording, it will be necessary to add an amplifier. An appropriate
design would be an AC-coupled amplifier, with approximately 20X gain, and with an
output DC-biased to 1.6V (the microphone’s normal bias level) at midscale. An
example of a suitable design is provided in Appendix C. “Optional Microphone
Amplifier”.
2.2.8
Background Data Transmission
As the foreground demo application runs, a separate background process is also
executing. This process sequentially converts the input from three different analog
inputs into a digital value and exports this data over USB as a virtual COM (serial) port.
The Pipeline A/D demo must be selected for data to be output on the USB port. The
data is output in three hexadecimal words, representing the potentiometer value, the
light sensor value and the signal on AN8. The process repeats the conversions and
exports the most current values continuously.
The data from this process can be read from the virtual COM port by using any
available serial terminal emulator.
2.2.9
Entering Reduced Power (Sleep) Mode
During any foreground section of the application, pressing SW1 places the microcontroller in Sleep mode. While in this mode, execution of the demo is paused while
the display returns to the 24-hour clock demo. Also, two “Z”s are added to the LCD
display. The background transmission of data over the virtual COM port also pauses.
The microcontroller wakes, once every minute, allowing the time display to be updated,
after which the microcontroller returns to Sleep mode.
Pressing SW1 again ends Sleep Mode. The “Z”s on the display are removed and the
clock display’s colon resumes blinking.
DS50002172A-page 22
2013 Microchip Technology Inc.
The Demonstration Application
2.3
OTHER HARDWARE RESOURCES ON THE STARTER KIT
Connector, J2, is configured as a USB host. As it is connected in parallel with the USB
device port connector, J2 cannot be used while J3 is in use.
A footprint (R5) is provided on the board for an add-on thermistor. The footprint is
designed to accommodate an NTC thermistor in an 0805 package size. Typical values
are 10 kΩ and 47 kΩ. The CTMU can source a current to the NTC and read the resulting voltage using the 12-bit Pipeline A/D Converter. This feature is not implemented in
the supplied demo software. For more information, refer to Microchip Application Note,
AN1375, “See What You Can Do with the CTMU” (DS01375).
If touch sensing is not desired, the function of the touch pads can be replaced with
push button (or other momentary contact) switches. Spaces are provided for switches,
S3, S4 and S5, as well as corresponding (unpopulated) pull-up resistors, R12, R52 and
R54. Note that installing these components does not automatically disable touch sense
functionality.
The footprint for U2 has been designed to directly solder mount one of Microchip
Technology’s wireless transceiver modules. Although the MRF24J40A (2.4 GHz,
IEEE 802.15.4) wireless transceiver is specified elsewhere in this manual, in theory,
any pin-compatible Microchip wireless transceiver module can be used.
The unpopulated footprints for J1 and J5 are provided in the event that additional programming and emulation interfaces are required. J1 provides a 6-pin interface to the
Starter Kit for use as a ICSP™ compatible emulator product (Microchip MPLAB ICD 3
programmer, the PICkit 3 programmer or the MPLAB REAL ICE emulator). It can also
be used as an alternative method for directly programming the PIC2FJ128GC010
microcontroller via In-Circuit Serial Programming™ (ICSP™). J5 provides a standard
5/6-pin interface to the PKOB and can be used to update its firmware.
2013 Microchip Technology Inc.
DS50002172A-page 23
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 24
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Chapter 3. Developing New Applications
The MPLAB Starter Kit for Intelligent.Integrated.Analog may be used with MPLAB®
IDE, the free Integrated Development Environment available on Microchip’s web site.
MPLAB IDE allows the starter kit to be used as an in-circuit debugger as well as a programmer for the featured device.
In-circuit debugging allows you to run, examine and modify your program for the device
embedded in the Starter Kit hardware. This greatly assists you in debugging your
firmware and hardware together.
Working through the PICkit On Board (PKOB), the Starter Kit interacts with the
MPLAB IDE application to run, stop and single-step through programs. Breakpoints
can be set and the processor can be reset. Once the processor is stopped, the
register’s contents can be examined and modified.
3.1
REPROGRAMMING THE STARTER KIT USING THE PKOB
When the Starter Kit is connected from your computer to the PICkit On Board USB
connector (J6), MPLAB recognizes it as a valid programmer and debugger. In
MPLAB IDE 8.x, the drop-down menu will show “Starter Kit on Board” as the correct
name (Figure 3-1).
FIGURE 3-1:
2013 Microchip Technology Inc.
SELECTING THE PKOB IN EARLIER VERSIONS OF MPLAB® IDE
DS50002172A-page 25
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
MPLAB X refers to it as “Starter Kits (PKOB)”; see Figure 3-2. In the MPLAB X
example, the Serial Number (SN) of the board will differ from the one shown.
In all cases, be sure to select PIC24FJ128GC010 as the device name in the Project
window.
FIGURE 3-2:
SELECTING THE PKOB
The application originally included with the Starter Kit is not protected; you may overwrite it with your own code. If you wish to reload the demo software, the files can be
found on the Microchip web site (www.microchip.com/PIC24FJ128GC010).
DS50002172A-page 26
2013 Microchip Technology Inc.
Developing New Applications
3.2
HARDWARE CONSIDERATIONS FOR NEW APPLICATIONS
When developing your own application for the Starter Kit board, it is important to set
each pin on the microcontroller’s I/O ports to the proper type (analog or digital) and to
the proper state (input or output).
Certain I/O pins on the PIC24FJ128GC010 microcontroller (and the corresponding pin
on J7/J8) can be used as general purpose I/Os. Others are hard-wired to Starter Kit
circuitry, but may be available under certain conditions. Table 3-1 lists these pins.
TABLE 3-1:
I/O PINS AVAILABLE FOR USER
PIC24FJ128GC010 Pin
J7/J8 Pin
Function
Comment
RE6/PMD6/CN64
37
External Interrupt from
Wireless Module
Available if there is no
wireless module
RE9/AN21/CN67
39
Chip Select for TC77
Available if JP7 shunt is
removed
RF4/AN11/OPA2N3/CN17
25
OPA2- (input)
Free to use
RF5/AN10/OPA2P2/CN18
26
OPA2+ (output)
Free to use
RG7/AN18/CN9
31
Chip Select (low) for
Wireless Module
Available if there is no
wireless module
AN9/RPI40/CN47/RC3
12
ADC2 Input
Free to use
AN8/RPI38/CN45/RC1
11
ADC1 Input
Free to use
AN3/OPA2O/CN5/RB3
14
OPA2O (output)
Free to use
Note:
Op amp OPA1 cannot be used on the Starter Kit as its output pin is used
for the PKOB.
If the LCD display is not being used in the new application, the pins driving the panel
segment and columns must be set as digital inputs; this prevents possible damage to
the LCD. This includes the following pins:
•
•
•
•
•
•
•
RA<15:14>,<10>,<6:0>
RB<15:14>,<12:7>
RC2
RD<15:13>,<11:6>
RE<8>,<4:0>
RF<13:12>,<8>,<3:0>
RG<15:12>,<1:0>
If the potentiometer, R7 (AN19/RG8), or the phototransistor sensor, Q1 (AN22/RA7), is
not to be used, the associated pin(s) must remain set as an analog input.
The digital input for SW1 (RD0) must remain set as a digital input.
2013 Microchip Technology Inc.
DS50002172A-page 27
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 28
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Chapter 4. Troubleshooting
This chapter discusses common operational issues and how to resolve them.
1. The demo application does not run.
The Starter Kit board must be plugged into a powered USB hub, computer or other USB
host device. Start by plugging into the USB device port, J2. LED, D4, should light when
VBUS is detected.
If D4 is not lit, verify that the USB host side port is functional.
Verify that there is a jumper in the USB position on J10.
2. The temperature sensor does not provide a reading or does not read
correctly.
Verify that a jumper is installed at JP7.
3. The Starter Kit is not recognized as a COM port device when it is
connected.
The virtual COM port is only available when the Starter Kit is connected through the
device port (J2).
Be certain to launch the terminal software only after the Starter Kit has been powered
up and the demo application is running. If the terminal program is started first, it will not
see the Starter Kit.
4. The light sensor’s voltage saturates under some bright light conditions.
The voltage generated by Q1 is set by resistor, R11. The default value is 27 kΩ. If your
ambient light is bright (over 500 lux), try lowering the value of R11 to 15 kΩ.
2013 Microchip Technology Inc.
DS50002172A-page 29
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 30
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Appendix A. Starter Kit Schematics
The following schematic diagrams are included in this appendix:
Application:
• Figure A-1: Application Microcontroller and Associated Components
• Figure A-2: LED Display and other Application Components
Programmer/Debugger:
• Figure A-3: PICkit On Board Programmer/Debugger
2013 Microchip Technology Inc.
DS50002172A-page 31
USB- A
GND
ID
D+
D-
VBUS
J2
5
4
3
2
1
VBI
D_P
D_N
SW_VDD
R7
10K
470 Ohm
R47
VBUS
0.1 PF
C40 100 Ohm
R63
100 Ohm
R6
Default
JP7
220 Ohm
L1
R9
LCD_PIN_24
LCD_PIN_23
LCD_PIN_18
LCD_PIN_29
LCD_PIN_28
LCD_PIN_37
LCD_PIN_40
LCD_PIN_17
LCD_PIN_3
OPA_2OPA_2+
LCD_PIN_41
LCD_PIN_42
LCD_PIN_43
LCD_PIN_44
LCD_PIN_36
RESET
INT
LED1
LCD_PIN_13
RE9
AVDD
90
89
57
56
10
11
12
14
96
97
95
1
87
88
52
51
49
50
54
53
40
39
93
94
98
99
100
3
4
5
18
19
15
32
45
65
75
31
2
16
37
46
62
30
Pin 16
Pin 46
1 PF
C6
SVDD
Pin 37
PIC24FJ128GC010-I/PT
AN43/OPA2N0/SEG17/RP11/VCMPST3/DMH/INT0/CN49/RD0
AN35/SEG20/RP24/CN50/RD1
AN25/OPA2N1/SEG21/RP23/DPH/PMACK1/CN51/RD2
AN44/OPA2P4/SEG22/RP22/PMBE0/CN52/RD3
AN47/OPA1P4/SEG23/RP25/PMWR/CN13/RD4
AN48/OPA1N1/SEG24/RP20/PMRD/CN14/RD5
AN34/OPA1P2/C3INB/SEG25/PMD14/CN15/RD6
AN20/C3INA/SEG26/PMD15/CN16/RD7
RG0/SEG49/PMD8/CN77
AN40/SEG13/RP2/RTCC/DMLN/OCTRIG1/PMA13/CN53/RD8
RG1/SEG46/PMD9/CN78
AN24/SEG14/RP4/DPLN/PMACK2/CN54/RD9
RG2/D+/CN72
AN41/C3IND/SEG15/PMA15/CS2/CN55/RD10
RG3/D-/CN73
AN42/OPA2P0/C3INC/SEG16/RP12/PMA14/CS1/CN56/RD11
BGBUF2/AN17/OPA1P1/C1IND/SEG0/RP21/T5CK/PMA5/CN8/RG6
AN45/SEG44/RPI42/PMD12/CN57/RD12
RG7/VLCAP1/AN18/OPA1N4/C1INC/RP26/PMA4/CN9
AN46/SEG45/PMD13/CN19/RD13
RG8/VLCAP2/AN19/OPA1N3/C2IND/RP19/PMA3/CN10
AN28/SEG38/RPI43/CN20/RD14
RG9/AN49/OPA1P0/C2INC/SEG1/DAC1/RP27/PMA2/CN11
AN29/SEG39/RP5/CN21/RD15
RG12/SEG60/CN79
RG13/SEG61/CTED10/CN80
CH0+
RG14/SEG59/CTED11/PMA16/CN81
CH0RG15/AN33/SEG50/CTED3/CN82
CH1+
CH1-
RF0/COM7/SEG27/VCMPST1/PMD11/CN68
RF1/COM4/SEG47/VCMPST2/PMD10/CN69
RF2/AN31/SEG40/RP30/CN70
RF3/AN30/SEG12/RP16/USBID/PMA12/CN71
RF4/AN11/OPA2N3/SEG10/RP10/SDA2/T3CK/PMA9/CN17
RF5/CVREF/AN10/OPA2P2/SEG11/RP17/SCL2/PMA8/CN18
RF7/VBUS/CN83
RF8/AN32/SEG41/RP15/CN74
RF12/SEG54/RPI32/CTED7/PMA18/CN75
RF13/AN27/SEG53/RP31/CN76
AN8/OPA1N1/SEG32/RPI38/CN45/RC1
SEG51/RPI39/CN46/RC2
AN9/SEG33/RPI40/CN47/RC3
AN16/SEG52/RPI41/PMCS2/CN48/RC4
OSCI/CLKI/CN23/RC12
SOSCI/RC13
SOSCO/SCLKI/RPI37/RC14
OSCO/CLKO/CN22/RC15
PGED1/CVREF+/AVREF+/DVREF+/BGBUF1/AN0/SEG7/RP0/CN2/RB0
PGEC1/CVREF-/AVREF-/AN1/OPA2P1/SEG6/RP1/CTED12/CN3/RB1
AN2/OPA2N2/CTCMP/C2INB/SEG5/RP13/T4CK/VMIO/CTED13/CN4/RB2
AN3/OPA2O/C2INA/SEG4/VPIO/CN5/RB3
PGE3/AN4/OPA1N0/C1INB/SEG3/RP28/USBOEN/CN6/RB4
PGE3/AN5/OPA1O/C1INA/SEG2/RP18/CN7/RB5
PGEC2/AN6/OPA1P3/RP6/LCDBIAS3/CN24/RB6
PGED2/AN7/COM6/SEG30/RP7/CN25/RB7
AN12/COM5/SEG18/T1CK/CTED2/PMA11/CN30/RB12
AN13/OPA2P3/SEG19/DAC2/CTED1/PMA10/CN31/RB13
AN14/OPA2N4/SEG8/RP14/CTED5/CTPLS/PMA1/CN32/RB14
AN15/SEG9/RP29/T2CK/REFO/CTED6/PMA0/CN12/RB15
33
34
35
36
72
76
77
78
81
82
83
84
68
69
70
71
79
80
47
48
6
7
8
9
63
73
74
64
25
24
23
22
21
20
26
27
41
42
43
44
17
38
58
59
60
61
91
92
28
29
66
67
SW1
SCK
CAPTOUCH_1
CAPTOUCH_2
SDO
SDI
LCD_PIN_8
LCD_PIN_9
LCD_PIN_4
LCD_PIN_5
LCD_PIN_6
LCD_PIN_7
CAPTOUCH_3
LCD_PIN_22
LCD_PIN_15
LCD_PIN_16
ADC_1
LCD_PIN_26
ADC_2
LCD_PIN_27
OSC1
SOSC1
SOSC0
OSC0
LED1
1K
R3
OSC1
OSC0
SOSC0
1K
R4
1K
R1
1K
R65
SOSC1
R5
No Load
Thermistor
OPA_2_Output
PGED
PGEC
LED2
LCD_PIN_38
LCD_PIN_39
DAC_2_Output
LCD_PIN_1
LCD_PIN_2
AVREF+
AVREF-
LCD_PIN_25
LCD_PIN_12
LCD_PIN_30
LCD_PIN_31
LCD_PIN_11
LCD_PIN_10
LCD_PIN_32
RA7
WAKE
LCD_PIN_14
LCD_PIN_19
LCD_PIN_20
CH0+
CH0CH1+
CH1-
10 PF
C41
Pin 37
0.1 PF
C39
TMS/SEG48/CTED0/CN33/RA0
TCK/AN26/SEG31/CN34/RA1
AN34/SEG55/SCL2/CN35/RA2
AN35/SEG56/SDA2/PMA20/CN36/RA3
TDI/AN36/SEG29/PMA21/CN37/RA4
TDO/AN37/SEG28/CN38/RA5
AN23/SEG57/CN39/RA6
AN22/SEG58/PMA17/CN40/RA7
CVREF-/AVREF-/SEG36/PMA7/CN41/RA9
CVREF+/AVREF+/SEG37/PMA6/CN42/RA10
AN38/SEG42/RPI36/SCL1/OCTRIG2/PMA22/CN43/RA14
AN39/SEG43/RPI35/SDA1/PMBE1/CN44/RA15
Pin 30
0.1 PF
C3
Pin 37
0.1 PF
0.1 PF
Pin 30
C38
AVDD
C35
Pin 55
0.1 PF
C5
Pin 62
0.1 PF
0.1 PF
0.1 PF
Pin 2
C4
C2
C1
RE0/COM3/PMD0/CN58
RE1/COM2/PMD1/CN59
RE2/COM1/PMD2/CN60
RE3/COM0/CTED9/PMD3/CN61
RE4/LVDIN/SEG62/CTED8/PMD4/CN62
RE5/CTED4/PMD5/LCDBIAS2/CN63
RE6/PMD6/LCDBIAS1/CN64
RE7/PMD7/LCDBIAS0/CN65
RE8/SEG34/RPI33/PMCS1/CN66
RE9/AN21/SEG35/RPI34/PMA19/CN67
VSS
SVSS
VSS
VSS
VSS
AVSS
VDD
VDD
SVDD
VDD
VDD
AVDD
85
VCAP
55
VUSB
VDD
VDD
13
MCLR
86 VBAT
U1
MCLR
VDD
VBUS_SENSE
/CS
RG8
DAC_1_Output
LCD_PIN_34
LCD_PIN_35
LCD_PIN_33
LCD_PIN_21
0.1 PF
C13
10 PF
C7
100 Ohm
R8
1K
VDD
VDD
10K
R2
27 pF
C10
Y1
D2
D1
S1
8 MHz
Y2
32.7 68 kHz
22 pF
C8
Red
Red
TEMT6000X01
B
Q1
LIGHT
27K
R11
SW_VDD
C
DS50002172A-page 32
E
27 pF
C11
22 pF
C9
FIGURE A-1:
TC77_CS
VDD
S2
VDD
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
STARTER KIT, SHEET 1 (PIC24FJ128GC010 MICROCONTROLLER)
2013 Microchip Technology Inc.
USB-B
6
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Shield
J8
D+
D-
VBUS
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
D_P
D_N
CMA-4544PF-W
AVREF+
RG8
LED1
RESET
SDO
LED2
WAKE
OPA_2+
CH1+IN
CH0+
RE9
(VBUS054B-HS3-GS08)
0.1 PF
0.22 PF
R13
56K
D_VBUS
CAPTOUCH_3
CAPTOUCH_2
R14
100K
VBUS_SENSE
C12
BT1
BATTERY
CAPTOUCH_1
VBUS
C32
(RA9)
(RB2)
(RB6)
(RD3)
(RD4)
(RD5)
(RE5)
(RE6)
(RE7)
No Load
U6
INT
SDI
SCK
/CS
RA7
OPA_2-
CH1-
CH0-
AVREF-
ADC_2
DAC_2_Output
DAC_1_Output
MIC_OUT
R62
100K
MIC_OUT
OPA_2_Output
ADC_1
VDD
J7
1 PF
C16
6
5
4
1
2
3
+
–
R61
100K
NSR0620P2T5G
D3
NSR0620P2T5G
D7
0 Ohm
R55
0 Ohm
R53
0 Ohm
R51
VBI
1 PF
C19
R54
No Load
SW_VDD
R52
No Load
SW_VDD
R12
No Load
SW_VDD
VIN
U7
3
2
GND
4
GND
VOUT
MCP1703T-3302E/DB
1
No Load
S5
No Load
S4
No Load
S3
Optional
Tactile
Switches
1 PF
C33
BATTERY
D4
Red
R15
1K
SW3
SW2
SW1
3
1
Touch Pads
J10
SCK
SDO
INT
WAKE
RESET
10 PF
C20
C43
VDD
TP2
TP1
VDD
SCK
SDI
INT
WAKE
RESET
GND
SDO
CS
NC
VIN
GND
GND
7
8
9
10
11
12
4
5
3
1
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SDI
1 nF
VOUT
6
/CS
5
6
0.1 PF
C44
CH1+IN
R60
10K
3
1
J9
TP4
10K
R58
CH1+
SI/O
VDD
TP3
1 nF
3
2
8
SDI
SW_VDD
U3A
1
R56
AMPOUTR
100 PF
C15
100 PF
C14
SW_VDD
MCP6022-E/SN 15
0.1 PF
C42
VDD
0.1 PF
C37
AMPOUTL
PGEC
PGED
SW_VDD
C18
5
4
MCLR
TC77-3.3MCTTR
SCK
VSS
CS
U8
AMPOUTR
Default
2
R57
DAC_2_Output
6
5
4
3
2
1
3
2
1
REAL ICE™
No Load
J1
SCK
TC77_CS
SW_VDD
MCP6022-E/SN 15
7
U3B
LCD_PIN_40
LCD_PIN_39
LCD_PIN_38
LCD_PIN_37
LCD_PIN_19
LCD_PIN_20
LCD_PIN_21
LCD_PIN_22
LCD_PIN_23
LCD_PIN_24
LCD_PIN_25
LCD_PIN_26
LCD_PIN_27
LCD_PIN_28
LCD_PIN_29
LCD_PIN_30
LCD_PIN_31
LCD_PIN_32
LCD_PIN_33
LCD_PIN_34
LCD_PIN_35
LCD_PIN_36
SW_VDD
C36
R50
No Load
LTC6652BHMS8-2.5#PBF
10K
R59
10 PF
C45
SW_VDD
40
Com5
39
Com6
38
Com7
37
Com8
2 VIN
3
SHDN
0.1 PF
C34
U11
AP2151WG-7
FLG
OUT
DAC_1_Output
SW_VDD
EN
VIN
U10
SW_VDD
SW_VDD
33A-33G, 37D
34A-34G, 37E
35A-35G, 37F
36A-36G, 37G
29A-29G, T29
28A-28G, T28
27A-27G, T27
26A-26G, T26
25A-25G, T25
24A-24G, T24
23A-23G, T23
19A-19G, T19
18A-18G, T18
17A-17G, T17
16A-16G, T16
15A-15G, T15
14A-14G, T14
13A-13G, T13
C T S100001-1
1A-1G, T1
2A-2G, T2
3A-3G, T3
4A-4G, T4
5A-5G, T5
6A-6G, T6
7A-7G, T7
8A-8G, T8
9A-9G, T9
10A-10G, T10
11A-11G, T11
12A-12G, T12
20A-20G, T20
21A-21G, T21
22A-22G, T22
30A-30G, 37A
31A-31G, 37B
32A-32G, 37C
LCD1
44
Com1
43
Com2
42
Com3
41
Com4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
MRF24J40MA No Load
6
5
4
3
2
1
0.1 PF
WAKE
VDD
LCD_PIN_44
LCD_PIN_43
LCD_PIN_42
LCD_PIN_41
LCD_PIN_1
LCD_PIN_2
LCD_PIN_3
LCD_PIN_4
LCD_PIN_5
LCD_PIN_6
LCD_PIN_7
LCD_PIN_8
LCD_PIN_9
LCD_PIN_10
LCD_PIN_11
LCD_PIN_12
LCD_PIN_13
LCD_PIN_14
LCD_PIN_15
LCD_PIN_16
LCD_PIN_17
LCD_PIN_18
NT1
Default
2
1
GND
2
MK1
R10
2.2K
2
U2
GND
4
8
2013 Microchip Technology Inc.
4
2
4
5
3
1
J4
0.1 PF
C17
AMPOUTL
FIGURE A-2:
4
SW_VDD
Starter Kit Schematics
STARTER KIT, SHEET 2 (OTHER FRONT-SIDE CIRCUITS)
DS50002172A-page 33
PK3V3
4
3
2
1
(BUS POWERED)
Shield
6
J6
SI
SCL
HOLD
VDD
25LC256-I/SN
VSS
WP
SO
CS
U5
D+
D-
VBUS
5
6
7
8
ICSP_PGEC_PICKIT3
ICSP_PGED_PICKIT3
5
4
3
2
1
ICSP_MCLR_VPP_PICKIT3
PK3V3
USB INTERFACE
R26
2.2K
UTIL_WP
UTIL_SDI
UTIL_CS
6
5
4
3
No Load
R27
10K
J5
2
1
R25
10K
PK3V3
USB_D_P
USB_D_N
D_VBUS
UTIL_SDO
UTIL_SCK
PK3V3
1 μF
C29
PK3V3
PK3V3
R18
0.22 μF
C47
PK3V3
Q3V3
PK3V3
100 Ohm
1 μF
C30
USB_D_P
USB_D_N
(VBUS 054B-H S3-G S08)
No Load
U9
R17
470 Ohm
VIN
Q5
1 μF
C48
Pin 19
0.1 μF
C26
R33
1K
16
15
14
13
12
11
17
18
21
22
23
24
27
28
29
30
D5
Red
0.1 μF
60
61
62
63
64
1
2
3
10 nF
C31
POWER_GOOD_PICKIT3
R34
10K
C46
PMD0/CN58/RE0
PMD1/CN59/RE1
PMD2/CN60/RE2
PMD3/CN61/RE3
PMD4/CN62/RE4
PMD5/CN63/RE5
PMD6/SCL3/CN64/RE6
PMD7/SDA3/CN65/RE7
RP11/DMH/CN49/INT0/RD0
RP24/VCPCON/CN50/RD1
DPH/RP23/CN51/RD2
RP22/PMBE/CN52/RD3
PMWR/RP25/CN13/RD4
PMRD/RP20/CN14/RD5
C3INB/CN15/RD6
C3INA/CN16/RD7
RP2/DMLN/RTCC/CN53/RD8
RP4/DPLN/SDA1/CN54/RD9
RP3/SCL1/PMCS2/CN55/RD10
RP12/PMCS1/CN56/RD11
46
49
50
51
52
53
54
55
42
43
44
45
39
OSCI/CLKI/CN23/RC12
47
SOSCI/C3IND/CN1/RC13
48
RPI37/SOSCO/C3INC/TICK/CN0/RC14
40
OSCO/CLKO/CN22/RC15
PIC24FJ256GB106-I/PT
D+/RG2
D-/RG3
PMA5/RP21/C1IND/CN8/RG6
RP26/PMA4/C1INC/CN9/RG7
PMA3/RP19/C2IND/CN10/RG8
RP27/PMA2/C2INC/CN11/RG9
3
Pin 19
0.1 μF
C25
PGED1/RP0/PMA6/VREF+/AN0/CN2/RB0
PGEC1/RP1/VREF-/AN1/CN3/RB1
VMIO/RP13/C2INB/AN2/CN4/RB2
VPIO/C2INA/AN3/CN5/RB3
PGED3/RP28/USBOEN/C1INB/AN4/CN6/RB4
PGEC3/RP18/VBUSON/C1INA/AN5/CN7/RB5
PGEC2/AN6/RP6/CN24/RB6
PGED2/RCV/RP7/AN7/CN25/RB7
RP8/AN8/CN26/RB8
PMA7/RP9/AN9/CN27/RB9
TMS/PMA13/AN10/CVREF/CN28/RB10
TDO/AN11/PMA12/CN29/RB11
TCK/PMA11/AN12/CTED2/CN30/RB12
TDI/PMA10/AN13/CTED1/CN31/RB13
CTPLS/RP14/PMA1/AN14/CN32/RB14
RP29/PMA0/AN15/REFO/CN12/RB15
VBUSST/VCMPST1/CN68/RF0
VCMPST2/CN69/RF1
RP16/USBID/CN71/RF3
PMA9/RP10/SDA2/CN17/RF4
PMA8/RP17/SCL2/CN18/RF5
2
GND
4
GND
VOUT
37
36
4
5
6
8
58
59
33
31
32
9
VSS
25
VSS
41
VSS
20
AVSS
10
VDD
26
VDD
38
VDD
19
AVDD
0.1 μF
C23
Pin 38
0.1 μF
0.1 μF
Pin 26
C22
C21
Pin 10
56
VCAP/VDDCORE
34
VBUS
35
VUSB
U4
7
MCLR
57
ENVREG
MCP1703T-3302E/DB
1
TARGET_POWER_ENABLE
220 Ohm
L2
10 μF
C24
ICSP_MCLR_VPP_PICkit 3™
6
5
4
1
2
3
VREF_2.5V
10K
PK3V3
VPP_ON
VPP_GND
R37
UTIL_SDI
UTIL_WP
UTIL_SCK
U4_SCK
U4_SDI
U4_SDO
UTIL_CS
UTIL_SDO
100K
ASSEMBLY_ID_0
ASSEMBLY_ID_1
C28
22 pF
R19
200K
12 MHz
R20
10K
R21
10K
PK3V3
ICSP_PGEC_PICkit 3
ICSP_PGED_PICkit 3
R24
3.16K
PK3V3
22 pF
C27
Y3
PK3V3
POWER_GOOD_PICkit 3
R22
VDD_SENSE
VPP_SENSE
R23
1K
PK3V3
VPP_GND
VPP_ON
R41
2.21K
VPP_SENSE
VDD_SENSE
R38
3.92K
10K
R46
No Load
R45
R42
2.21K
R39
10K
U4_SCK
U4_SDI
U4_SDO
B
Q7
R43
No Load
R40
No Load
PK3V3
330 Ohm
R31
330 Ohm
R30
330 Ohm
R28
MMBT3904
B
Q8
PGEC
PGED
R44
100 Ohm
MCLR
Q6
No load
R32
4.7K
R29
4.7K
‘PGED’ = Programming/Emulation Data Signal
‘PGEC’ = Programming/Emulation Clock Signal
C
E
DS50002172A-page 34
C
FIGURE A-3:
E
Q3V3
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
STARTER KIT, SHEET 3 (PICkit™ ON BOARD PROGRAMMER)
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Appendix B. LCD Panel Information
This section provides specific pinout and multiplexing information for the Microchip
custom LCD display panel. It is furnished for those users who desire to design custom
applications using the MPLAB Starter Kit for Intelligent.Integrated.Analog
display.
The layout of the display elements is shown in Figure B-1. The letters and numbers in
grey (white on some graphic elements) indicate the pixel address in the dot-matrix
section, or the graphic element in the icon section, and are not part of the actual display.
Table B-1 shows the mapping of the panel’s pins to display segments and commons.
Table B-2 shows the segment column mapping for each display element.
FIGURE B-1:
MICROCHIP CUSTOM LCD PANEL (ELEMENT NUMBERS SHOWN IN GREY)
22
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
A
B
C
D
E
F
G
T15
T14
T1
T23
T17
T26
T8
T7
T10
T12
T9
T28
T18
T19
T2
T5
T3
44
2013 Microchip Technology Inc.
T27
T13
T21
T22
T20
T4
T25
T16
T11
T6
T29
T24
23
DS50002172A-page 35
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
TABLE B-1:
DS50002172A-page 36
LCD PANEL PIN MAPPING
Pin #
Function
Pin #
Function
1
SEG1
23
SEG23
2
SEG2
24
SEG24
3
SEG3
25
SEG25
4
SEG4
26
SEG26
5
SEG5
27
SEG27
6
SEG6
28
SEG28
7
SEG7
29
SEG29
8
SEG8
30
SEG30
9
SEG9
31
SEG31
10
SEG10
32
SEG32
11
SEG11
33
SEG33
12
SEG12
34
SEG34
13
SEG13
35
SEG35
14
SEG14
36
SEG36
15
SEG15
37
COL8
16
SEG16
38
COL7
17
SEG17
39
COL6
18
SEG18
40
COL5
19
SEG19
41
COL4
20
SEG20
42
COL3
21
SEG21
43
COL2
22
SEG22
44
COL1
2013 Microchip Technology Inc.
LCD Panel Information
TABLE B-2:
LCD PANEL DISPLAY ELEMENT MAPPING
COL1
COL2
COL3
COL4
COL5
COL6
COL7
COL8
SEG1
D1A
D1B
D1C
D1D
D1E
D1F
D1G
T1
SEG2
D2A
D2B
D2C
D2D
D2E
D2F
D2G
T2
SEG3
D3A
D3B
D3C
D3D
D3E
D3F
D3G
T3
SEG4
D4A
D4B
D4C
D4D
D4E
D4F
D4G
T4
SEG5
D5A
D5B
D5C
D5D
D5E
D5F
D5G
T5
SEG6
D6A
D6B
D6C
D6D
D6E
D6F
D6G
T6
SEG7
D7A
D7B
D7C
D7D
D7E
D7F
D7G
T7
SEG8
D8A
D8B
D8C
D8D
D8E
D8F
D8G
T8
SEG9
D9A
D9B
D9C
D9D
D9E
D9F
D9G
T9
SEG10
D10A
D10B
D10C
D10D
D10E
D10F
D10G
T10
SEG11
D11A
D11B
D11C
D11D
D11E
D11F
D11G
T11
SEG12
D12A
D12B
D12C
D12D
D12E
D12F
D2G
T12
SEG13
D20A
D20B
D20C
D20D
D20E
D20F
D20G
T20
SEG14
D21A
D21B
D21C
D21D
D21E
D21F
D21G
T21
SEG15
D22A
D22B
D22C
D22D
D22E
D22F
D22G
T22
SEG16
D30A
D30B
D30C
D30D
D30E
D30F
D30G
D37A
SEG17
D31A
D31B
D31C
D31D
D31E
D31F
D31G
D37B
SEG18
D32A
D32B
D32C
D32D
D32E
D32F
D32G
D37C
SEG19
D33A
D33B
D33C
D33D
D33E
D33F
D33G
D37D
SEG20
D34A
D34B
D34C
D34D
D34E
D34F
D34G
D37E
SEG21
D35A
D35B
D35C
D35D
D35E
D35F
D35G
D37F
SEG22
D36A
D36B
D36C
D36D
D36E
D36F
D36G
D37G
SEG23
D29A
D29B
D29C
D29D
D29E
D29F
D29G
T29
SEG24
D28A
D28B
D28C
D28D
D28E
D28F
D28G
T28
SEG25
D27A
D27B
D27C
D27D
D27E
D27F
D27G
T27
SEG26
D26A
D26B
D26C
D26D
D26E
D26F
D26G
T26
SEG27
D25A
D25B
D25C
D25D
D25E
D25F
D25G
T25
SEG28
D24A
D24B
D24C
D24D
D24E
D24F
D24G
T24
SEG29
D23A
D23B
D23C
D23D
D23E
D23F
D23G
T23
SEG30
D19A
D19B
D19C
D19D
D19E
D19F
D19G
T19
SEG31
D18A
D18B
D18C
D18D
D18E
D18F
D18G
T18
SEG32
D17A
D17B
D17C
D17D
D17E
D17F
D17G
T17
SEG33
D16A
D16B
D16C
D16D
D16E
D16F
D16G
T16
SEG34
D15A
D15B
D15C
D15D
D15E
D15F
D15G
T15
SEG35
D14A
D14B
D14C
D14D
D14E
D14F
D14G
T14
SEG36
D13A
D13B
D13C
D13D
D13E
D13F
D13G
T13
Legend: DnX = Dot Matrix, Column n, Row X; Tn = Graphic Display Element n (see
Figure B-1 for details).
2013 Microchip Technology Inc.
DS50002172A-page 37
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 38
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Appendix C. Optional Microphone Amplifier
By default, the electret microphone on the MPLAB Starter Kit for
Intelligent.Integrated.Analog is configured as a simple audio detector; it does not provide sufficient amplification for voice or more advanced audio applications. To achieve
better performance, a microphone amplifier needs to be implemented. The preferred
design would be an AC-coupled amplifier with a gain of approximately 20:1, with the
output DC-biased to 1.6V.
Figure C-1 shows a suggested implementation for this type of amplifier. Table C-1
provides the list of required components. The exact implementation in hardware is left
to the user.
FIGURE C-1:
MICROPHONE AMPLIFIER SCHEMATIC
3.3V
3
MIC_OUT
5 U1
1
4
(J8, Pin 5)
PREAMP_OUT
2 MCP6291
+
C1
10 µF
TABLE C-1:
R1
220
R2
10 k
MICROPHONE AMPLIFIER COMPONENT LIST
Component
C1
10 µF, 16 WVDC Electrolytic Capacitor
R1
220, Resistor (±5% tolerance or better)(1)
R2
10 k Trim Potentiometer
U1
MCP6921-E/OT Operational Amplifier (SOT-23 package)(1)
Note 1:
2013 Microchip Technology Inc.
Description
Specific part options depend on your choices for implementing the design. SOT-23
packaging options are shown for convenience; other options are available.
DS50002172A-page 39
MPLAB® Starter Kit for Intelligent.Integrated.Analog User’s Guide
NOTES:
DS50002172A-page 40
2013 Microchip Technology Inc.
MPLAB® STARTER KIT FOR
INTELLIGENT.INTEGRATED.ANALOG
USER’S GUIDE
Index
A
P
Ambient Light Sensor ............................................. 16
Audio Output Driver ................................................ 16
Audio/Microphone Demo ........................................ 22
PICkit On Board (PKOB) ...................................15, 25
Pipeline A/D Demo .................................................. 21
Potentiometer .......................................................... 15
Power Source Options ............................................ 18
Precision Voltage Reference .................................. 16
B
Background Data Transmission .............................. 22
Battery Holder ......................................................... 17
Breakout Connectors .............................................. 17
C
Clock Demo ............................................................ 20
Customer Change Notification Service ................... 11
Customer Support ................................................... 12
D
R
Reading, Recommended ........................................ 10
Reduced Power (Sleep) Mode, Entering ................ 22
Reprogramming the Starter Kit Using PKOB .......... 25
Revision History ...................................................... 12
RF Transceiver Footprint ........................................ 17
S
I
Schematic Diagrams .........................................31–34
Optional Microphone Amplifier ......................... 39
Sigma-Delta A/D Demo ........................................... 20
Starter Kit Board
Front/Back Views (figure) ................................ 14
Start-up Display ...................................................... 19
Stereo DAC Demo .................................................. 21
SW1 Momentary Push Button ................................. 15
SWITCHED_VDD Control ....................................... 18
Internet Address ..................................................... 11
T
Device Drivers Installation ...................................... 18
Documentation
Conventions ....................................................... 9
Layout ................................................................ 8
H
Hardware Considerations for New Applications ...... 27
L
LCD Display ............................................................ 15
LCD Panel
Technical Information ...................................... 35
LCD Test Demo ...................................................... 21
M
MCLR Push Button ................................................. 15
Microchip Internet Web Site .................................... 11
Microphone ............................................................. 16
mTouch Navigation Pads ........................................ 15
TC77 Temperature Sensor Demo ........................... 21
Temperature Sensor ............................................... 16
Troubleshooting ...................................................... 29
U
USB Connectors ..................................................... 15
User LEDs ............................................................... 15
W
Warranty Registration ............................................... 9
WWW Address ........................................................ 11
O
Optional Microphone Amplifier ................................ 39
Other Hardware Resources .................................... 23
2013 Microchip Technology Inc.
DS50002172A-page 41
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DS50002172A-page 42
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11/29/12
2013 Microchip Technology Inc.