DM164137

Curiosity Low Pin Count (LPC) Development Board User’s Guide  2015-2020 Microchip Technology Inc. DS40001804D Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights unless otherwise stated. Trademarks The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider, Vite, WinPath, and ZL are registered trademarks of Microchip Technology Incorporated in the U.S.A. Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, 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. The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks 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. © 2015-2020, Microchip Technology Incorporated, All Rights Reserved. For information regarding Microchip’s Quality Management Systems, please visit www.microchip.com/quality. DS40001804D-page 2 ISBN: 978-1-5224-5890-6  2015-2020 Microchip Technology Inc. CURIOSITY LOW PIN COUNT DEVELOPMENT BOARD USER’S GUIDE Table of Contents Preface ........................................................................................................................... 4 Chapter 1. Introduction to Curiosity Low Pin Count (LPC) 1.1 Curiosity Low Pin Count (LPC) Development Board Kit Contents ................. 8 Chapter 2. Getting Started 2.1 Programming the Curiosity Low Pin Count (LPC) Development Board ....... 10 2.1.1 Programming Using MPLAB® X IDE ........................................................ 10 Chapter 3. Troubleshooting 3.1 The MCU Will Not Program Using The PKOB ............................................. 14 3.2 The MPLAB PICkit™ 4 On-Board (PKOB4) Does Not Perform ................... 14 Appendix A. Schematic A.1 Curiosity LPC Development Board Schematics ........................................... 15 Appendix B. General Notes B.1 mikroBus™ Clicks ........................................................................................ 20 B.2 Solder Blob Jumper ..................................................................................... 20 Worldwide Sales and Service .................................................................................... 21  2015-2020 Microchip Technology Inc. DS40001804D-page 3 CURIOSITY LOW PIN COUNT 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 website (www.microchip.com) to obtain the latest documentation available. Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “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® 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 Curiosity LPC Development Board. Items discussed in this chapter include: • • • • • • • Document Layout Conventions Used in this Guide Recommended Reading The Microchip Website Development Systems Customer Change Notification Service Customer Support Revision History DOCUMENT LAYOUT This document describes how to use the Curiosity LPC 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 Low Pin Count (LPC)” – This chapter contains general information regarding the Curiosity LPC Development Board kit contents, layout and power source. • Chapter 2. “Getting Started” – This chapter offers information on how to program the Curiosity LPC Development Board. • Chapter 3. “Troubleshooting” – Consult this chapter for troubleshooting information. • Appendix A. “Schematic” – This appendix lists the Curiosity LPC Development Board schematic. • Appendix B. “General Notes” – Refer to this appendix for general notes on using the Click module sockets and the solder blob jumpers.  2015-2020 Microchip Technology Inc. DS40001804D-page 4 Curiosity Low Pin Count Development Board User’s Guide 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 Emphasized text ...is the only compiler... Initial caps A window the Output window A dialog the Settings dialog A menu selection select Enable Programmer Quotes A field name in a window or dialog “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 N‘Rnnnn A number in verilog format, 4‘b0010, 2‘hF1 where N is the total number of digits, R is the radix and n is a digit. Text in angle brackets < > A key on the keyboard Press , 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 Courier New font: Plain Courier New DS40001804D-page 5 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) { ... }  2015-2020 Microchip Technology Inc. Preface RECOMMENDED READING This user’s guide describes how to use the Curiosity LPC Development Board. For the latest information on using other tools, refer to the MPLAB® X IDE home page: www.microchip.com/mplab/mplab-x-ide. This resource page contains updated documentation, downloads and links to other MPLAB X compatible tools, plug-ins and much more. THE MICROCHIP WEBSITE Microchip provides online support via our website at www.microchip.com. This website is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the website contains the following information: • Product Support – Data sheets and errata, application notes, 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/promo/curiosity-development-boards. • 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 website at www.microchip.com, click on Customer Change Notification and follow the registration instructions. The Development Systems product group categories are: • Compilers – The latest information on Microchip C compilers, 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® Plus and PICkit 2 and 3.  2015-2020 Microchip Technology Inc. DS40001804D-page 6 Curiosity Low Pin Count Development Board 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. Technical support is available through the website at: www.microchip.com/support. REVISION HISTORY Revision D (March 2020) Added new layout revision and content updates. Revision C (September 2019) Updated Figures 2-1 through 2-4 and A-1. Remove EU Declaration of Conformity. Revision B (April 2016) Added the EU Declaration of Conformity. Revision A (July 2015) Initial release of this document. DS40001804D-page 7  2015-2020 Microchip Technology Inc. CURIOSITY LOW PIN COUNT DEVELOPMENT BOARD USER’S GUIDE Chapter 1. Introduction to Curiosity Low Pin Count (LPC) The Curiosity Low Pin Count (LPC) Development Board supports Microchip’s 8-, 14and 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. Programming/debugging is accomplished through the PICkit™ On-Board (PKOB), eliminating the need for an external programming/debugging tool. This board provides flexibility for experimentation through an application header with a ground (GND) and supply voltage (VSS) connections. It is also a set of indication LEDs, mTouch® button and push button switches, and a variable potentiometer. Additionally, the Curiosity LPC Board integrates a MikroElektronika mikroBUS™ socket, which can accommodate a variety of plug-in Click™ Board modules that can be used for application development. 1.1 CURIOSITY LOW PIN COUNT (LPC) DEVELOPMENT BOARD KIT CONTENTS The Curiosity Low Pin Count (LPC) Development Board kit contains the following: • Curiosity Low Pin Count (LPC) Development Board • Quick Start Guide • PIC16F18446 MCU FIGURE 1-1: CURIOSITY LOW PIN COUNT (LPC) DEVELOPMENT BOARD REV 2 ™ mTouch® Button  2015-2020 Microchip Technology Inc. DS40001804D-page 8 FIGURE 1-2:  2015-2020 Microchip Technology Inc. CURIOSITY LOW PIN COUNT (LPC) DEVELOPMENT BOARD REV 4 DS40001804D-page 9 CURIOSITY LOW PIN COUNT DEVELOPMENT BOARD USER’S GUIDE Chapter 2. Getting Started The Curiosity Low Pin Count (LPC) Development Board contains a PICkit On-Board (PKOB) which allows for both low-voltage programming and low-voltage in-circuit debugging for all supported devices. When used with the MPLAB IDE, in-circuit debugging allows the user to run, modify, and troubleshoot their custom software and hardware quickly, without the need for additional debugging tools. 2.1 PROGRAMMING THE CURIOSITY LOW PIN COUNT (LPC) DEVELOPMENT BOARD Programming the Curiosity LPC Development Board can be accomplished through MPLAB X IDE (version 3.30 or higher for Rev 2 and version 5.20 or higher for Rev 4). Note: 2.1.1 The Curiosity LPC Board must be programmed using Low-Voltage Programming (LVP). The LVP bit of the Configuration Word(s) must be set (LVP = ON or ‘1’). Programming Using MPLAB® X IDE 1. Connect the Curiosity LPC Board to the computer using the on-board micro-USB connector. 2. Open MPLAB X IDE and either create a new project or open an existing one. 3. Click on the Project Properties icon located in the project’s Dashboard window (as seen in Figure 2-1). Alternatively, the Project Properties window can be opened by clicking on File > Project Properties, or by right clicking on the project name in the Projects window and clicking Properties.  2015-2020 Microchip Technology Inc. DS40001804D-page 10 FIGURE 2-1: PROJECT PROPERTIES BUTTON 4. The Project Properties window will open. This window allows for the selection of the programming tool, compiler and PIC MCU. MPLAB X IDE refers to the Curiosity LPC Board as “Starter Kits” in the Hardware Tool selection window, as seen in Figure 2-2. FIGURE 2-2: SELECTING THE CURIOSITY LPC DEVELOPMENT BOARD 5. In the upper left-hand corner of the Project Properties window, click on Starter Kits (PKOB). The window will now show the configuration options for the PKOB programmer, as shown in Figure 2-3.  2015-2020 Microchip Technology Inc. DS40001804D-page 11 FIGURE 2-3: PROGRAM OPTIONS FOR THE PICkit™ ON-BOARD (PKOB) 6. In the Option categories drop-down menu, select Program Options; ensure that the Low Voltage Programming mode is selected for Programming mode entry (Figure 2-4). The Curiosity LPC Board is now ready to be programmed. FIGURE 2-4: ENSURE LOW-VOLTAGE PROGRAMMING IS ENABLED  2015-2020 Microchip Technology Inc. DS40001804D-page 12 7. Once the project is ready to be programmed, simply click on the Make and Program Device button, and MPLAB X IDE will build and compile the code and program the PIC device, as displayed in Figure 2-5. FIGURE 2-5: DEVICE PROGRAMMING  2015-2020 Microchip Technology Inc. DS40001804D-page 13 CURIOSITY LOW PIN COUNT DEVELOPMENT BOARD USER’S GUIDE Chapter 3. Troubleshooting This chapter discusses common operational issues and methods to resolve them. 3.1 THE MCU WILL NOT PROGRAM USING THE PKOB The Curiosity LPC Development Board’s PICkit On-Board (PKOB) uses low-voltage programming. Both MPLAB X IDE and MPLAB Xpress set 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 IDE 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 is 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 PIC device dual-row expansion headers, ensuring the appropriate ICSP™, GND, and VDD connections are made. Configure MPLAB IDE to use the PICkit 3 as the programmer, and ensure the LVP bit is set to ‘1’ in the Configuration Word. Reprogram the device. b) Use an unprogrammed (blank) device and ensure the LVP bit is set to ‘1’ in the Configuration Word. 3.2 THE MPLAB PICKIT™ 4 ON-BOARD (PKOB4) DOES NOT PERFORM Use the Hardware Tool Emergency Boot Firmware Recovery Utility to restore hardware tool boot firmware to its factory state. The recovery utility window can be opened by clicking on Debug > Hardware Tool Emergency Boot Firmware Recovery Utility in MPLAB X IDE.The Curiosity LPC Development Board’s PICkit On-Board (PKOB) uses low-voltage programming. Both MPLAB X IDE and MPLAB Xpress sets the Low-Voltage Programming (LVP) bit to a ‘1’, allowing low-voltage programming.  2015-2020 Microchip Technology Inc. DS40001804D-page 14 CURIOSITY LOW PIN COUNT DEVELOPMENT BOARD USER’S GUIDE Appendix A. Schematic A.1 CURIOSITY LPC DEVELOPMENT BOARD SCHEMATICS FIGURE A-1: CURIOSITY LPC DEVELOPMENT BOARD SCHEMATIC REV 2 (1 OF 1) 1 2 3 4 5 6 REV ECO# DESCRIPTION DATE Move Silkscreen of R14 so it can be read. Swap RB4 and 3-31-2015 DNP TP1 2 D3 +9V LM340MP-5.0 US1M 1 +5V C10 C11 0.22uF 16V 1uF 16V VIN VOUT GND 3 +3.3V C12 2 1uF 16V R26 R27 1k 10k GND D1 DNP D_VBUS 4 6 5 4 0 2 (BUS POWERED) VIN 1 2 3 J5 2 1 RA2 PGEC HDR-2.54 Male 2x4 R37 R44 10k 0R 0402 RC1 STANDOFF4 S3 TM mTouch Button AIO2 AIO1 AIO0 PIO7 RSVD0 RSVD1 RSVD2 R40 R41 R42 R43 1k 1k 1k 1k J6 D5 RED GND 2  2015-2020 Microchip Technology Inc. DNP HDR-2.54 Male 1x2 J4 1 2 R31 R34 470R RC4 D4 1 2 D6 RED D7 RED GND GND 3 RB5 RB6 RB4 RB7 B HDR-2.54 Male 2x4 DNP +3.3V RSVD2 RSVD1 RSVD0 PIO7 RTS/PIO6 SPI/PIO HDR-2.54 Male 1x8 2 3 4 19 20 21 22 AIO2 AIO1 AIO0 PIO7 RSVD RSVD RSVD UART_TX UART_RX CTS/PIO5 RTS/PIO6 WAKE_HW WAKE_SW CMD/MLDP LED/PIO1/SCK MLDP_EV/PIO2/CS WS/PIO3/MOSI PIO4/MISO SPI/PIO GND C 5 RX 6 TX 14 CTS/PIO5 18 RTS/PIO6 15 RC0 7 WAKE_SW 8 10 11 12 13 17 CMD/MLDP LED/PIO1/SCK MLDP_EV/PIO2/CS WS/PIO3/MOSI PIO4/MISO SPI/PIO RN4020 VDD RED HDR-2.54 Male 1x2 DNP 1/4" Standoff Nylon 1/4" Standoff Nylon 1/4" Standoff Nylon 1/4" Standoff Nylon 1 RB5 Drawn By: DNP J3 R29 10k S1 TACT SPST GND 0R 0402 VDD RC0 Jamus Griego Engineer: R33 0R R32 0402 HDR-2.54 Male 1x2 470R PartNumber: Curiosity Designed with Sheet Title ** Size File: 4 Project Title POT1 10327 10k GND GND D John Mouton 3 STANDOFF3 J13 X5 SCR4 Phillips Screw 1/4" Phillips Screw 1/4" J40 DNP +3.3V U6 23 VDD 1 GND 9 C18 GND 16 4.7uF GND 24 GND 2 STANDOFF2 X4 SCR3 RX SCL SDA TX J10 AIO2 AIO1 AIO0 RX TX WAKE_SW CMD/MLDP GND 1 X3 Phillips Screw 1/4" MISO SCK MOSI CS 0R RB5 0R RB6 0R RB4 0R RB7 GND J14 DNP HDR-2.54 Male 1x8 HDR-2.54 Female 2x10 2 1 X2 SCR2 110-91-320-41-001 PGED PGEC 0R DNP GND R52 1 2 3 4 5 6 7 8 PGED PGEC RA2 RC0 RC1 RC2 RB4 RB5 RB6 GND 0R X1 HDR-2.54 Female 2x10 PGED PGEC RA2 RC0 RC1 RC2 RB4 RB5 RB6 VSS PIC16F18346-I/P Phillips Screw 1/4" 19 17 15 13 11 9 7 5 3 1 20 18 16 14 12 10 8 6 4 2 GND 20 19 18 17 16 15 14 13 12 11 R50 20 16 15 14 7 6 5 8 9 RX R56 SCL R58 SDA R54 TX J11 1 2 3 4 5 6 7 8 9 10 VDD RA5 RA4 nMCLR RC5 RC4 RC3 RC6 RC7 RB7 R49 GND HDR-2.54 Male 1X6 STAGGERD RB4 RB5 RB6 RB7 RC0 RC1 RC2 RC3 RC4 RC5 RC6 RC7 J35 HDR-2.54 Male 1x8 U4 J9 0R 13 12 11 10 RA0/ICSPDAT RA1/ICSPCLK RA2 RA3/Vpp/MCLR RA4/OSC2 RA5/OSC1 RA5 nMCLR ICSP_VDD VDD R48 19 18 17 4 3 2 PGED PGEC 0R VDD RA5 C15 RA4 0.1uF nMCLR 25V RC5 RC4 D2 RC3 GREEN GND RC6 RC7 RB7 1 3 5 7 1 1 2 3 4 5 6 VDD VDD 470R @U4 19 17 15 13 11 9 7 5 3 1 20 18 16 14 12 10 8 6 4 2 R35 GND RC5 VDD TACT SPST R47 470R 0R R39 nMCLR R46 S2 mikroBUS MISO SCK MOSI CS RC5 RA2 RX TX SCL SDA +5V J8 GND ICSP_VDD 10k 8 7 6 5 4 3 2 1 DNP GND HDR-2.54 Male 1x2 DNP R38 16 15 14 13 12 11 10 9 PWM INT RX TX SCL SDA +5V GND DNP +5V VDD VDD AN RST CS SCK MISO MOSI +3.3V GND J39 HDR-2.54 Male 2x4 +3.3V 2 4 6 8 USB INTERFACE TP4 TP3 GND P1 STANDOFF1 RB4 RB6 RC7 RC6 DNP DNP 10k GND DNP D DNP J7 +3.3V R60 +A A GND C SCR1 HDR-2.54 Female 1x6 +5V VSS S 3 3 2 1 MCP6561 1 OUTA A VCMP U3 V VBUS054B-HS3-GS08 DNP U16 R55 R53 R57 R51 0R RB4 0R RB6 0R RC7 0R RC6 J12 1 +5V -A A J34 1 2 3 4 5 6 7 8 8 7 6 5 4 3 2 1 RC2 RA4 CS SCK MISO MOSI +3.3V 1 2 3 4 5 6 VREF_2.5V DNP J33 POWER_GOOD_PICKIT3 HDR-2.54 Male 1x3 VDD D B DNP POWER +5V +t USB_D_N USB_D_P 0.01uF 16V GND 2 3 D_VBUS 5 VBUS DD+ ID GND Q5 PTC3 1 2 3 4 5 C14 0.1uF 25V 0R 0603 FDN340P 1210 500mA J2 C13 GREEN R45 USB MINI-B Female A +3.3V HDR-2.54 Female 1x8 0.1uF 25V 10k TP2 DNP 8-2-2018 Q2 1 C16 8 6 4 2 7 5 3 1 +5V 0.22uF R61 Change @U4 to PIC16F18346-I/P MCP1703-3302E/DB 3 2 1 2 3 4 5 6 7 8 C17 VCMP 2.2 DNP VIN VOUT GND LED/PIO1/SCK MLDP_EV/PIO2/CS WS/PIO3/MOSI PIO4/MISO CTS/PIO5 RC0 U5 2k 0603 7 5 3 1 8 6 4 2 R59 HDR-2.54 Female 1x8 1 3 2 PJ-002BH-SMT DNP 8 7 6 5 4 3 2 1 VIN J15 A RC7 connections. Change @U4 to PIC16F1619-I/P 5 B Sch #:03-10327 Revision: 2.2 Date: 8/8/2018 9:11:25 AM Sheet 1 of 1 Altium.com 03-10327 sheet 1.SchDoc 6 DS40001804D-page 15 Schematic FIGURE A-2: CURIOSITY LPC DEVELOPMENT BOARD SCHEMATIC REV 4 (1 OF 4)       Main Micro $ $ 9 R13 R14 N   N   (DW_RX) 8$ TIOA0 TP8 UTIL_SDA UTIL_SCL SYS_ID1 3*B6