Microchip Technology Curiosity Development Board User guide

Curiosity Development Board

User’s Guide

 2015 Microchip Technology Inc. DS40001804A

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

YSTEM

CERTIFIE DBYDNV

== ISO/TS16949==

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

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

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

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

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

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

Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
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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 unless otherwise stated.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, flexPWR, JukeBlox, K
LANCheck, MediaLB, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, PICSTART, PIC
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, 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: 978-1-63277-574-0

EELOQ, KEELOQ logo, Kleer,

32

logo, RightTouch, SpyNIC,

QUALITYMANAGEMENTS

DS40001804A-page 2  2015 Microchip Technology Inc.

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
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.

®

MCUs and dsPIC® DSCs, KEELOQ

®

code hopping

CURIOSITY DEVELOPMENT BOARD

USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 4

Introduction............................................................................................................ 4

Document Layout .................................................................................................. 4

Conventions Used in this Guide ............................................................................ 5

Recommended Reading........................................................................................ 6

The Microchip Web Site ........................................................................................ 6

Development Systems Customer Change Notification Service ............................ 6

Customer Support ................................................................................................. 7

Revision History .................................................................................................... 7

Chapter 1. Introduction to Curiosity

1.1 Curiosity Development Board Kit Contents .................................................... 8

1.2 Curiosity Development Board Layout ............................................................. 9

1.3 Power Sources ............................................................................................. 10

1.3.1 USB Connector (J2) .................................................................................. 10

1.3.2 9V External Power Supply (J15) ............................................................... 10

1.3.3 Variable External Power Supply (TP3, TP4) ............................................. 10

Chapter 2. Getting Started

2.1 Programming the Curiosity Development Board .......................................... 11

Chapter 3. Troubleshooting

3.1 The Demo Application Does Not Run .......................................................... 14

3.2 The MCU Will Not Program Using The PKOB ............................................. 14

3.3 The MCU Will Not Program Using the PICKIT 3 .......................................... 14

Appendix A. Schematic

A.1 Curiosity Development Board Schematic .................................................... 15

Appendix B. General Notes

B.1 Power ........................................................................................................... 17

B.2 RN4020 Bluetooth

B.3 Click or RN4020 Modules ............................................................................ 17

B.4 Debugging Mode .......................................................................................... 17

B.5 Routing and Flexibility .................................................................................. 17

®

Low Energy (BLE) Module ........................................... 17

Worldwide Sales and Service .................................................................................... 18

 2015 Microchip Technology Inc. DS40001804A-page 3

CURIOSITY DEVELOPMENT BOARD

USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

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

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

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

®

IDE online help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the
Curiosity Development Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Revision History

DOCUMENT LAYOUT

This document describes how to use the Curiosity Development Board as a
development tool to emulate and debug firmware on a target board. The document is
organized as follows:

• Chapter 1. “Introduction to Curiosity” – This chapter contains general

information regarding the Curiosity Development Board kit contents, layout and
power source.

• Chapter 2. “Getting Started” – This chapter offers information on how to

program the Curiosity Development Board.

• Chapter 3. “Troubleshooting” – Consult this chapter for troubleshooting

information.

• Appendix A. “Schematic” – This appendix lists the Curiosity Development

Board schematic.

• Appendix B. “General Notes” – Refer to this appendix for general notes on

power options, configuration of the RN4020 Bluetooth
the Click module, debugging, routing and flexibility of the board.

®

low-energy module and

 2015 Microchip Technology Inc. DS40001804A-page 4

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENT CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB IDE User’s Guide

Initial caps A window the Output window

Quotes A field name in a window or

Underlined, italic text with
right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

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

Courier New font:

Plain Courier New Sample source code #define START

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

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe
character: { | }

Ellipses... Replaces repeated text var_name [,

Preface

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

A dialog the Settings dialog

A menu selection select Enable Programmer

“Save project before build”

dialog

A menu path File>Save

A tab Click the Power tab

4‘b0010, 2‘hF1
where N is the total number of
digits, R is the radix and n is a
digit.

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

any valid filename

[options]

Choice of mutually exclusive
arguments; an OR selection

Represents code supplied by
user

errorlevel {0|1}

var_name...]

void main (void)

{ ...

}

 2015 Microchip Technology Inc. DS40001804A-page 5

Curiosity Development Board User’s Guide

RECOMMENDED READING

This user's guide describes how to use the Curiosity Development Board. For the latest
information on using other tools, refer to the MPLAB

www.microchip.com/mplabx/. This resource page contains updated documentation,

downloads and links to other MPLAB X compatible tools, plug-ins and much more.

®

X IDE home page:

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, sample programs

and labs, design resources, user's guides and hardware support documents,
latest software releases and archived software
Curiosity-Development-board specific product support can be accessed via our
website at www.microchip.com/curiosity.

•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 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 nonproduction development programmers such as PICSTART
PICkit 2 and 3.

®

Plus and

®

DS40001804A-page 6  2015 Microchip Technology Inc.

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.

Technical support is available through the web site at:

www.microchip.com/support.

REVISION HISTORY

Revision A (July 2015)

Initial release of this document.

Preface

 2015 Microchip Technology Inc. DS40001804A-page 7

CURIOSITY DEVELOPMENT BOARD

mTouch®

Button

™

Chapter 1. Introduction to Curiosity

The Curiosity Development Board supports Microchip's 8-, 14- and 20-pin 8-bit PIC®
MCUs. Dual-row expansion headers on either side of the socket offer flexibility of
connectivity to all pins on the PIC MCUs. This board provides flexibility for
experimentation through an application header with ground (GND) and supply voltage
(V

DD) connections. It also includes a set of indication LEDs, mTouch

push-button switches, and a variable potentiometer. Additionally, it features a
Bluetooth
of plug-in Click™ Board sensors that can be used in application development.

1.1 CURIOSITY DEVELOPMENT BOARD KIT CONTENTS

The Curiosity Development Board kit contains the following:

• Curiosity Development Board

• Quick Start Guide

FIGURE 1-1: CURIOSITY DEVELOPMENT BOARD KIT

®

low-energy footprint and a mikroBUS™ footprint to accommodate a variety

USER’S GUIDE

®

button and

 2015 Microchip Technology Inc. DS40001804A-page 8

Introduction to Curiosity

mTouch®

Button

21

3

5

6 7

8

910

1112

13

1. USB mini-B connector (on back)

2. Footprint for 9V connector

3. Master Clear Reset button

4. 3.3/5V power jumper (J12)

5. Posts for external variable power supply

6. Expansion board connector

7. PIC

®

MCU socket for 8, 14, and 20-pin microcontrollers

8. mikroBUS™ Click Board footprint for application development

9. RN4020 Bluetooth

®

Module Footprint

10. Potentiometer

11. LE D s

12. mTouch

®

button

13. Push button

™

4

1.2 CURIOSITY DEVELOPMENT BOARD LAYOUT

Figure 1-2 identifies the major features of the Curiosity Development Board.

FIGURE 1-2: CURIOSITY DEVELOPMENT BOARD LAYOUT

 2015 Microchip Technology Inc. DS40001804A-page 9

Curiosity Development Board User’s Guide

1.3 POWER SOURCES

The Curiosity Development Board can be powered in one of three ways, depending on
its usage.

1.3.1 USB Connector (J2)

The USB connector (J2) will power the entire Curiosity Development Board. A shunt
jumper must be placed onto jumper J12 (Figure 1-2). The right two pins of J12 will
connect +5V from the USB connector J2. The left two pins of J12 will connect +3.3V
from the USB voltage regulator on the back side of the development board. With USB
power connected to J2, power LED D1 will always be ON to indicate that +3.3V is
available on the board.

1.3.2 9V External Power Supply (J15)

The 9V external power supply (J15) will also power the entire Curiosity Development
Board. A shunt jumper must be placed onto jumper J12 (Figure 1-2). The right two pins
of J12 will connect +5V from the on-board voltage regulator circuitry connected to
connector J15. The left two pins of J12 will connect +3.3V from the on-board voltage
regulator circuitry. With 9V external power connected to J15, power LED D1 will always
be ON to indicate that +3.3V is available on the board. Power LED D2 will only be ON
when power (+3.3V or +5V) is applied to V

DD via a shunt jumper placed on J12.

1.3.3 Variable External Power Supply (TP3, TP4)

A variable external power supply connected to TP3 and TP4 will power the entire
Curiosity Development Board. A shunt jumper is not needed on J12, thus either +3.3V
or +5V can be directly applied via a variable external power supply to V

DD.

DS40001804A-page 10  2015 Microchip Technology Inc.

CURIOSITY DEVELOPMENT BOARD

USER’S GUIDE

Chapter 2. Getting Started

The Curiosity Development Board must be used with MPLAB X Integrated
Development Environment (IDE), available free on Microchip's web site,

www.microchip.com. Use version v3.05 or later.

The Curiosity Development Board, through MPLAB X, is a low-voltage in-circuit
debugger, as well as a low-voltage programmer, for all supported devices. In-circuit
debugging allows the user to run, examine and modify programs for the supported
device embedded in the Curiosity hardware. This facilitates the debugging of firmware
and hardware concurrently. Use the Curiosity Development Board with MPLAB X IDE
to run, stop and single-step through programs –breakpoints can be set and the
processor can be reset. When the processor stops, the contents of the register are
available for examination and modification.

2.1 PROGRAMMING THE CURIOSITY DEVELOPMENT BOARD

After connecting the Curiosity Development Board to the computer using the on-board
USB connector (J2 on the back of the board), open the MPLAB X IDE. Then create a
new project or open an existing project. Click on the Project Properties icon located in
the project's Dashboard window (Figure 2-1). Alternatively, the Project Properties
window can be opened by clicking on File
the project name in the Projects window and clicking Properties. (Figure 2-1).

> Project Properties, or by right-clicking on

FIGURE 2-1: SELECTING THE CURIOSITY DEVELOPMENT BOARD IN THE MPLAB

®

X IDE

 2015 Microchip Technology Inc. DS40001804A-page 11

Curiosity Development Board User’s Guide

MPLAB X refers to the Curiosity Development Board as “Starter Kits (PKOB)”, with
“Curiosity” listed below. Click on Curiosity, the correct device and XC8 compiler
version being used, then click Apply (Figure 2-2). On the upper left hand corner of the
Properties window, click on Starter Kit (PKOB) (Figure 2-3). The window will change
to the Options for Starter Kit (PKOB) window (Figure 2-3).

FIGURE 2-2: CURIOSITY DEVELOPMENT BOARD CONFIGURATION

FIGURE 2-3: PROGRAM OPTIONS FOR STARTER KIT (PKOB)

DS40001804A-page 12  2015 Microchip Technology Inc.

Getting Started

Note: When using the PKOB for programming, the Low Voltage Programming

(LVP) bit of the Configuration Word(s) must be set (LVP = ON or '1').

Select options category “Program Options” and then “Enable Low Voltage
Programming,” if it is not already selected. Click Apply, then OK (Figure 2-3). Once the
project is finished, the microcontroller is ready to be programmed. Simply click on the
Make and Program Device Main Project button and the device will be programmed
(Figure 2-4).

FIGURE 2-4: PROGRAMMING THE DEVICE ON THE CURIOSITY DEVELOPMENT BOARD

 2015 Microchip Technology Inc. DS40001804A-page 13

CURIOSITY DEVELOPMENT BOARD

Chapter 3. Troubleshooting

This chapter discusses common operational issues and how to resolve them.

3.1 THE DEMO APPLICATION DOES NOT RUN

Curiosity Development Board must be plugged into a powered USB hub, computer, or
other USB host device. To run the application, ensure the conditions listed below are
met:

1. Start by plugging it into the USB device port, J2. LEDs D1 and D2 should light
when V

2. If D1 is not lit, verify that the USB host side port is functional.

3. If D2 is not lit, verify that jumper J12 is connected to the proper device voltage.

3.2 THE MCU WILL NOT PROGRAM USING THE PKOB

The Curiosity Development Board's PICkit on board (PKOB) uses low-voltage
programming. The demo application code sets the Low Voltage Programming (LVP) bit
to a '1', allowing low-voltage programming.

1. When using custom firmware, the LVP bit must be set to '1' in the Configuration
Word. MPLAB X will not allow programming using the PKOB unless the bit is
properly configured.

2. When using a PIC microcontroller (one not included with the Curiosity
Development Board) that has already been programmed using high-voltage
programming and the LVP bit cleared (LVP = OFF or '0'), the device will not be
recognized and cannot be programmed using the PKOB. Reprogramming the
device can be achieved by one of the following two methods:

a) Connect a PICkit 3 Programmer to the Curiosity board, configuring MPLAB

b) Use an unprogrammed (blank) device and ensure the LVP bit is set to '1' in

BUS is detected.

to use the PICkit 3 as the programmer, and ensuring the LVP bit is set to '1'
in the Configuration Word. Reprogram the device.

the Configuration Word.

USER’S GUIDE

3.3 THE MCU WILL NOT PROGRAM USING THE PICkit 3

If the PIC device will not program using the PICkit 3, ensure that the 3.3/5V jumper
(J12) is removed.

 2015 Microchip Technology Inc. DS40001804A-page 14

CURIOSITY DEVELOPMENT BOARD

D
O2IO1IO0
A

_

A

A

SW
/

D

/

O

/SC

/

/

S

O

/

OS

/
S/

O

A

_

W

D

/

O
S/

O

SVDRS

D
SVD

D

Appendix A. Schematic

A.1 CURIOSITY DEVELOPMENT BOARD SCHEMATIC

FIGURE A-1: CURIOSITY DEVELOPMENT BOARD SCHEMATIC

USER’S GUIDE

DNP

TP1

MCP1703-3302E/DB

DNP

LM340MP-5.0

U5

+9V

US1M

D3

VIN

J15

Q2

+5V

+5V

3

VOUT

VIN

1

R59

DNP

DNP

+3.3V

+3.3V

3

VOUT

VIN

1

C16

2

GND

C17

2k

0603

231

PJ-002BH-SMT

GND

0.1uF

VCMP

HDR-2.54 Female 1x8

J34

HDR-2.54 Female 1x8

J33

C14

C13

C12

C11

C10

25V

0.22uF

DNP

TX

RX

SCL

RC5

RA2

SDA

11

16

14

10

12

13

15

TX

RX

INT

SCL

SDA

PWM

AN1RST2CS3SCK4MISO5MOSI6+3.3V7GND

CS

RC2

RA4

SCK

MISO

MOSI

0.01uF

16V

0.1uF

25V

POWER_GOOD_PICKIT3

10k

R27

D1

1k

R26

1uF

16V

2

1uF

16V

0.22uF

16V

GND

10k

R61

DNP

TP2

+5V+3.3V

9

+5V

8

GREEN

DNP

1234567 8

RB4

SDA

MOSI

RC7

+3.3V

1

DNP

+5V

OUTA

0

RB7

8

J40

TX

CS

8

RC6

6
5
4
3
2
1

TP4

R60

VSS

4
5
6

HDR-2.54 Male 2x4

DNP DNP

HDR-2.54 Male 2x4

J39

DNP DNP

+3.3V

+5V

VIN

DNP

TP3

VDD

10k

GND

2

GND

+A3-A

VCMP

VBUS054B-HS3-GS08

U3

DNP

J10

12345678

J8

GND

GND

3
2
1

RB6

RB4

RB5

RB7

RB6

J35

mikroBUS

GND GND

0603

FDN340P

1210

USB MINI-B Female

500mA

0R

R520RR540RR560RR58

RX

MISO

RB4

POWER

2

Q5

3

PTC3

J2

SCL

SCK

RB6

D_VBUS +5V

D_VBUS

1

VBUS

SDA

MOSI

R510RR530RR550RR57

0R

RC7

J12

HDR-2.54 Male 1x3

+t

USB_D_N

3

2

D-

RB5

1234567

RX

TX

CS

MISO

1234567

RC6

RB4

123

1

MCP6561

U16

+5V

5

4

USB_D_P

4

5

ID

D+

SCL

SCK

RB6

HDR-2.54 Female 1x6

J7

DNP

VDD

VREF_2.5V

GND

1234567 8

GND

1234567 8

0R

R45

HDR-2.54 Male 1x8

WAKE_SW

CMD/MLDP

LED/PIO1/SCK

WS/PIO3/MOSI

MLDP_EV/PIO2/CS

RC0

8

15

7

H

MLDP

KE_

KE

MD

WAKE_SW

W

WAKE_HW

W

CMD/MLDP

N

AI

4

24

AIO0

AIO1

AIO2

GND

HDR-2.54 Female 2x10

110-91-320-41-001

RC5

HDR-2.54 Female 2x10

RA2

PGEC

RA5

GND

RC214RC115RC0

16

GND

PGEC

PGED

6

HDR-2.54 Male 1X6 STAGGERD

PIO4/MISO

10

11

12

13

I

K

C

M

MISO

1

3

PIO2

IO4

PI

PI

PIO4/MISO

ED
LED/PIO1/SCK

WS/PIO3/MOSI

MLDP_EV/PIO2/CS

MLDP_EV

V

PIO719RSVD20RSVD21RSVD

PIO7R

PIO7

RSVD0

RSVD1

VDD

RC0

DNP

VDD

DNP

HDR-2.54 Male 1x2

HDR-2.54 Male 2x4

R49

R48

DNP

J13

13

RC55RC46RC37RC68RC7

9

SPI/PIO

17

PI
PI

SPI/PIO

R

RN4020

22

RSVD2

0R

R33

12

J3

S1

10k

R29

R31

12

J4

R50

0R

78
56
34
112

R47

0R

RB710RB611RB512RB4

PIC16F1619-I/P

X1 X2 X3 X4

POT1

2

2

R32

0402

TACT SPST

RC4

91A

10K

10k

HDR-2.54 Male 1x2

GND

470R

R34

0R

0R

RUBBER PAD 0.50x0.50x0.23

20%

1 3

1 3

470R

0402

0R

1k

R43

1k

R42

1k

R41

1k

R40

RC1

R44

R37

X5

RUBBER PAD 0.50x0.50x0.23

RUBBER PAD 0.50x0.50x0.23

RUBBER PAD 0.50x0.50x0.23

GND

RED

D7

RED

D6

RED

D5

RED

D4

GND GND GND GND

12

DNP

J6

HDR-2.54 Male 1x2

0R

0402

10k

TM

Button

mTouch

S3

CTS/PIO5

RTS/PIO6

TX

DNP

1234567 8

HDR-2.54 Male 1x8

J14

GND GND

GND

PGED

PGEC

RC0

PGEC

PGED

12345678910111213141516171819

J11

RC0

RA2 RA2

PGEC

PGED

1615141312

17

191820

RX

5

6

14

18

5

TX

PI

RT

RT_RX

T
CTS/PIO5

UART_TX

U

UART_RX

U

N

N

GND1AIO22AIO13AIO0

GND

VDD23GND

U6

9

16

+3.3V

C18

RB5

RC1

RC2

RB4

RB5

RB6

20

RB4

RB5

RB6

RC1

RC2

11

6

PI

RTS/PIO6

RT

N
GND

4.7uF

PIO7

RSVD0

RSVD1

RSVD2

+3.3V

SPI/PIO

RTS/PIO6

RC0
CTS/PIO5
PIO4/MISO
WS/PIO3/MOSI
MLDP_EV/PIO2/CS
LED/PIO1/SCK

AIO0

AIO1

AIO2

WAKE_SW

CMD/MLDP

TX

RX

HDR-2.54 Male 1x8

GND

U4

45678

9

123

VDD

12345678910111213141516171819

J9

12

J5

HDR-2.54 Male 1x2

R46

ICSP_VDD

10k

R38

VDD

0R

VDD

VDD

470R

R35

VDD

GND

TACT SPST

S2

470R

R39

NMCLR

DNP

VDD

RA4

RA5

RA4

RA5

C15

@U4

(BUS POWERED)

RC4

RC5

NMCLR

NMCLR

RC4

RC5

0.1uF

25V

17

19

18

RA2

RA0/ICSPDAT

RA1/ICSPCLK

VDD

VSS

1

20

DNP

10

RC3

RC6

20

RC7 RC7

RB7 RB7

RC3

RC6

GND

GREEN

D2

3

4

RA52RA4

RA3/MCLR/VPP

ICSP_VDD

NMCLR

12345

P1

USB INTERFACE

 2015 Microchip Technology Inc. DS40001804A-page 15

Curiosity Development Board User’s Guide

Ta bl e A- 1 lists the parts that are not included with the Curiosity Development Board.

TABLE A-1: PARTS NOT INCLUDED WITH THE CURIOSITY DEVELOPMENT BOARD

Item

J15 PJ-002BH-SMT CUI Inc. CP-002BHPJDTR-ND CONN POWER JACK

U5 LM340MP-5.0/NOPB TI LM340MP-5.0/NOPBTR-ND IC REG LDO 5V 1A

J33, J34 PPTC081LFBN-RC Sullins Connector

J7 PPTC061LFBN-RC Sullins Connector

J8, J10, J14 PRPC008SAAN-RC Sullins Connector

J13, J39, J40 PRPC004DAAN-RC Sullins Connector

J3, J4, J5, J6 PREC002SAAN-RC Sullins Connector

Manufacturing Part

Number

Manufacturer Digi-Key Part Number Description

2.5X5.5 mm HI CUR

SOT223

S7006-ND CONN HEADER

Solutions

S7004-ND CONN HEADER

Solutions

S1011EC-08-ND CONN HEADER .100"

Solutions

S2011EC-04-ND CONN HEADER .100"

Solutions

S1012EC-02-ND CONN HEADER .100"

Solutions

FEMALE 8POS .1" TIN

FEMALE 6POS .1" TIN

SNGL STR 8POS

DUAL STR 8POS

SNGL STR 2POS

DS40001804A-page 16  2015 Microchip Technology Inc.

CURIOSITY DEVELOPMENT BOARD

Appendix B. General Notes

B.1 POWER

When the Curiosity board is USB-powered though a 5V supply rather than a USB port
on a computer, MCLR

B.2 RN4020 BLUETOOTH® LOW ENERGY (BLE) MODULE

1. The RN4020 Bluetooth Low Energy (BLE) module must be configured before
use. This can be achieved by either of the following methods:

a) Connecting the UART TX and RX lines to an external UART-to-USB bridge,

such as the MCP2200, and using a terminal program to communicate with
and program the BLE module

b) Writing custom firmware and programming the BLE module through the PIC

MCU.

2. The Wake_HW line (pin 15 of the RN4020) was not connected, but is now
recommended. This line must be connected for proper BLE functionality. See the

RN4020 Bluetooth

(DS70005191) for more information.

is held in Reset for approximately five seconds.

®

Low Energy Module Command Reference User’s Guide

USER’S GUIDE

B.3 CLICK OR RN4020 MODULES

Shared UART TX and RX lines supply connection to either the RN4020 BLE module or
a Click module (which uses UART for communication with the PIC MCU), but not both.

B.4 DEBUGGING MODE

During Debug mode, LED D5 is not available to the user. This was done to provide
out-of-the-box LED access to Microchip’s 8-pin MCUs. There are zero-ohm-resistors in
series that can be removed to allow connection to another pin, if desired.

B.5 ROUTING AND FLEXIBILITY

Pinouts to the various connections provide connectivity to many devices. With
zero-ohm-resistors in series to all connections, i.e., the mikroBUS™, TouchPad, and
LEDs, the board can be modified for many situations without cutting the printed circuit
board (PCB) traces.

 2015 Microchip Technology Inc. DS40001804A-page 17

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01/27/15

 2015 Microchip Technology Inc. DS40001804A-page 18