Microchip PIC18F47K42 User Manual

PIC18F47K42 Curiosity Nano

PIC18F47K42 Curiosity Nano Hardware User Guide

Preface

The PIC18F47K42 Curiosity Nano Evaluation Kit is a hardware platform to evaluate the PIC18F47K42 microcontroller.

Supported by Microchip MPLAB® X Integrated Development Environment (IDE), the kit provides easy access to the features of the PIC18F47K42 to explore how to integrate the device into a custom design.

The Curiosity Nano series of evaluation kits include an on-board debugger. No external tools are necessary to program and debug the PIC18F47K42.

User Guide

DS50002899A-page 1

PIC18F47K42 Curiosity Nano

1. Introduction

1.1 Features

• PIC18F47K42-I/MV Microcontroller

• One Yellow User LED

• One Mechanical User Switch

• Footprint for 32.768 kHz Crystal

• On-Board Debugger:

– Board identification in Microchip MPLAB® X

– One green power and status LED

– Programming and debugging

– Virtual COM port (CDC)

– One logic analyzer channel (DGI GPIO)

• USB Powered

• Adjustable Target Voltage:

– MIC5353 LDO regulator controlled by the on-board debugger

– 2.3-5.1V output voltage (limited by USB input voltage)

– 500 mA maximum output current (limited by ambient temperature and output voltage)

PIC18F47K42 Curiosity Nano

Introduction

1.2 Kit Overview

The Microchip PIC18F47K42 Curiosity Nano Evaluation Kit is a hardware platform to evaluate the PIC18F47K42 microcontroller.

Figure 1-1. PIC18F47K42 Curiosity Nano Evaluation Kit Overview

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DS50002899A-page 4

2. Getting Started

2.1 Curiosity Nano Quick Start

Steps to start exploring the Curiosity Nano platform:

1. Download Microchip MPLAB® X.

2. Launch Microchip MPLAB® X.

3. Connect a USB cable (Standard-A to Micro-B or Micro-AB) between the PC and the debug USB port on the kit.

When the Curiosity Nano kit is connected to your computer for the first time, the operating system will perform a driver software installation. The driver file supports both 32- and 64-bit versions of Microsoft Windows® XP, Windows Vista®, Windows 7, Windows 8, and Windows 10. The drivers for the kit are included with Microchip MPLAB® X.

Once the Curiosity Nano board is powered the green status LED will be lit and Microchip MPLAB® X will auto-detect which Curiosity Nano board is connected. Microchip MPLAB® X will present relevant information like data sheets and kit documentation. The PIC18F47K42 device is programmed and debugged by the on-board debugger and therefore no external programmer or debugger tool is required.

PIC18F47K42 Curiosity Nano

Getting Started

®

2.2 Design Documentation and Relevant Links

The following list contains links to the most relevant documents and software for the PIC18F47K42 Curiosity Nano.

• MPLAB® X IDE - MPLAB® X IDE is a software program that runs on a PC (Windows®, Mac OS®,

Linux®) to develop applications for Microchip microcontrollers and digital signal controllers. It is called an Integrated Development Environment (IDE) because it provides a single integrated “environment” to develop code for embedded microcontrollers.

• MPLAB® Code Configurator - MPLAB® Code Configurator (MCC) is a free software plug-in that

provides a graphical interface to configure peripherals and functions specific to your application.

• Microchip Sample Store - Microchip sample store where you can order samples of devices.

• Data Visualizer - Data Visualizer is a program used for processing and visualizing data. The Data

Visualizer can receive data from various sources such as the EDBG Data Gateway Interface found on Curiosity Nano and Xplained Pro boards and COM Ports.

• PIC18F47K42 Curiosity Nano website - Kit information, latest user guide and design

documentation.

• PIC18F47K42 Curiosity Nano on microchipDIRECT - Purchase this kit on microchipDIRECT.

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DS50002899A-page 5

3. Curiosity Nano

Curiosity Nano is an evaluation platform of small boards with access to most of the microcontrollers I/Os. The platform consists of a series of low pin-count microcontroller (MCU) boards with on-board debuggers, which are integrated with Microchip MPLAB® X. Each board is identified in the IDE, and relevant user guides, application notes, data sheets, and example code are easy to find. The on-board debugger features a Virtual COM port (CDC) for serial communication to a host PC, and a Data Gateway Interface (DGI) GPIO logic analyzer pin.

3.1 On-board Debugger

The PIC18F47K42 Curiosity Nano contains an on-board debugger for programming and debugging. The on-board debugger is a composite USB device of several interfaces: A debugger, a mass storage device, a data gateway, and a Virtual COM port (CDC).

Together with Microchip MPLAB® X, the on-board debugger can program and debug the PIC18F47K42.

A Data Gateway Interface (DGI) is available for use with the logic analyzer channels for code instrumentation, to visualize the program flow. DGI GPIOs can be graphed using the Data Visualizer.

PIC18F47K42 Curiosity Nano

Curiosity Nano

The Virtual COM port is connected to a UART on the PIC18F47K42 and provides an easy way to communicate with the target application through terminal software.

The on-board debugger controls a Power and Status LED (marked PS) on the PIC18F47K42 Curiosity Nano. The table below shows how the LED is controlled in different operation modes.

Table 3-1. On-Board Debugger LED Control

Operation Mode Status LED

Boot Loader mode LED blink at 1 Hz during power-up.

Power-up LED is ON.

Normal operation LED is ON.

Programming Activity indicator: The LED flashes slowly during programming/debugging.

Fault The LED flashes fast if a power fault is detected.

Sleep/Off LED is off. The on-board debugger is either in Sleep mode or powered down.

3.1.1 Virtual COM Port

The Virtual COM Port is a general purpose serial bridge between a host PC and a target device.

3.1.1.1 Overview

The on-board debugger implements a composite USB device that includes a standard Communications Device Class (CDC) interface, which appears on the host as a Virtual COM Port. The CDC can be used to stream arbitrary data in both directions between the host and the target: All characters sent from the host will be sent through a UART on the CDC TX pin, and UART characters sent into the CDC RX pin will be sent back to the host through the Virtual COM Port.

This can occur if the kit is externally powered.

On Windows machines, the CDC will enumerate as Curiosity Virtual COM Port and appear in the Ports section of the device manager. The COM port number is shown here.

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DS50002899A-page 6

On Linux machines, the CDC will enumerate and appear as /dev/ttyACM#.

On MAC machines, the CDC will enumerate and appear as /dev/tty.usbmodem#. Depending on which terminal program is used, it will appear in the available list of modems as usbmodem#.

3.1.1.2 Limitations

Not all UART features are implemented in the on-board debugger CDC. The constraints are outlined here:

• Baud rate must be in the range 1200 bps to 500 kbps. Any baud rate outside this range will be set to

the closest limit, without warning. Baud rate can be changed on-the-fly.

• Character format: Only 8-bit characters are supported.

• Parity: Can be odd, even, or none.

• Hardware flow control: Not supported.

• Stop bits: One or two bits are supported.

PIC18F47K42 Curiosity Nano

Curiosity Nano

Info: On older Windows systems, a USB driver is required for CDC. This driver is included in

MPLAB X and Atmel® Studio installations.

3.1.1.3 Signaling

During USB enumeration, the host OS will start both communication and data pipes of the CDC interface. At this point, it is possible to set and read back the baud rate and other UART parameters of the CDC, but data sending and receiving will not be enabled.

When a terminal connects on the host, it must assert the DTR signal. This is a virtual control signal implemented on the USB interface, but not in hardware in the on-board debugger. Asserting DTR from the host will indicate to the on-board debugger that a CDC session is active, will enable its level shifters (if available) and start the CDC data send and receive mechanisms.

Deasserting the DTR signal will not disable the level shifters but disable the receiver so no further data will be streamed to the host. Data packets that are already queued up for sending to the target will continue to be sent out, but no further data will be accepted.

Remember: Enable to set up your terminal emulator to assert the DTR signal. Without it, the on-board debugger will not send or receive any data through its UART.

3.1.1.4 Advanced Use

CDC Override Mode

In normal operation, the on-board debugger is a true UART bridge between the host and the device. However, under certain use cases, the on-board debugger can override the basic operating mode and use the CDC pins for other purposes.

Dropping a text file (with extension .txt) into the on-board debugger’s mass storage drive can be used to send characters out of the CDC TX pin. The text file must start with the characters:

CMD:SEND_UART=

The maximum message length is 50 characters - all remaining data in the frame are ignored.

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PIC18F47K42 Curiosity Nano

Curiosity Nano

The default baud rate used in this mode is 9600 bps, but if the CDC is already active or has been configured, the baud rate last used still applies.

USB-Level Framing Considerations

Sending data from the host to the CDC can be done byte-wise or in blocks, which will be chunked into 64byte USB frames. Each such frame will be queued up for sending to the CDC TX pin. Transferring a small amount of data per frame can be inefficient, particularly at low baud rates, since the on-board debugger buffers frames and not bytes. A maximum of 4 x 64-byte frames can be active at any time. The on-board debugger will throttle the incoming frames accordingly. Sending full 64-byte frames containing data is the most efficient.

When receiving data from the target, the on-board debugger will queue up the incoming bytes into 64byte frames, which are sent to the USB queue for transmission to the host when they are full. Incomplete frames are also pushed to the USB queue at approximately 100 ms intervals, triggered by USB start-offrame tokens. Up to 8 x 64-byte frames can be active at any time.

If the host, or the software running on it, fails to receive data fast enough, an overrun will occur. When this happens, the last-filled buffer frame will be recycled instead of being sent to the USB queue, and a full frame of data will be lost. To prevent this occurrence, the user must ensure that the CDC data pipe is being read continuously, or the incoming data rate must be reduced.

3.1.2 Mass Storage Disk

A simple way to program the target device is through drag and drop with .hex files.

3.1.2.1 Mass Storage Device

The on-board debugger implements a highly optimized variant of the FAT12 file system that has a number of limitations, partly due to the nature of FAT12 itself and optimizations made to fulfill its purpose for its embedded application.

The CURIOSITY drive is USB Chapter 9 compliant as a mass storage device but does not, in any way, fulfill the expectations of a general purpose mass storage device. This behavior is intentional.

The on-board debugger enumerates as a Curiosity Nano USB device that can be found in the disk drives section of the Windows device manager. The CURIOSITY drive appears in the file manager and claims the next available drive letter in the system.

The CURIOSITY drive contains approximately one MB of free space. This does not reflect the size of the target device’s Flash in any way. When programming a .hex file, the binary data are encoded in ASCII with metadata providing a large overhead, so one MB is a trivially chosen value for disk size.

It is not possible to format the CURIOSITY drive. When programming a file to the target, the filename may appear in the disk directory listing. This is merely the operating system’s view of the directory, which, in reality, has not been updated. It is not possible to read out the file contents. Removing and replugging the kit will return the file system to its original state, but the target will still contain the application that has been previously programmed.

To erase the target device, copy a text file starting with “CMD:ERASE” onto the disk.

By default, the CURIOSITY drive contains several read-only files for generating icons as well as reporting status and linking to further information:

• AUTORUN.ICO - icon file for the Microchip logo.

• AUTORUN.INF - system file required for Windows Explorer to show the icon file.

• KIT-INFO.HTM - redirect to the development board website.

User Guide

DS50002899A-page 8

• KIT-INFO.TXT - a text file containing details about the kit firmware, name, serial number, and

device.

• STATUS.TXT - a text file containing the programming status of the board.

Info: STATUS.TXT is dynamically updated by the on-board debugger, the contents may be cached by the OS and therefore not reflect the correct status.

3.1.2.2 Configuration Words

Configuration Words (PIC® MCU Targets)

Configuration Word settings included in the project being programmed after program Flash is programmed. The debugger will not mask out any bits in the Configuration Words when writing them, but since it uses Low-Voltage Programming mode, it is unable to clear the LVP Configuration bit. If the incorrect clock source is selected, for example, and the board does not boot, it is always possible to perform a bulk erase (always done before programming) and restore the device to its default settings.

PIC18F47K42 Curiosity Nano

Curiosity Nano

3.2 Curiosity Nano Standard Pinout

The twelve edge connections closest to the USB connector on Curiosity Nano kits have a standardized pinout. The program/debug pins have different functions depending on the target programming interface as shown in the table and figure below.

Table 3-2. Curiosity Nano Standard Pinout

Debugger Signal ICSPTM Target Description

ID - ID line for extensions.

CDC TX UART RX USB CDC TX line.

CDC RX UART TX USB CDC RX line.

DBG0 ICSPDAT Debug data line.

DBG1 ICSPCLK Debug clock line/DGI GPIO.

DBG2 GPIO0 DGI GPIO.

DBG3 MCLR Reset line.

NC - No connect.

VBUS - VBUS voltage for external use.

VOFF - Voltage Off input.

VTG - Target voltage.

GND - Common ground.

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Figure 3-1. Curiosity Nano Standard Pinout

USB

DEBUGGER

PS LED

NC

ID

CDC RX

CDCRX

CDC TX

CDCTX

DBG1

DBG2

VBUS

VOFF

DBG3

DBG0

GND

VTG

CURIOSITY NANO

USB

Target

MCU

Power source

Cut strap

Power consumer

P3V3

DEBUGGER

Power converter

DEBUGGER

Regulator

VUSB

Target

Regulator

Power Supply

strap

Adjust

Level

shifter

VLVL

VREG

I/O

GPIO

straps

I/O

On/Off

Measure

On/Off

ID system

#VOFF

PTC

Fuse

Power protection

VBUS

Target Power

strap

VTG

3.3 Power Supply

The kit is powered through the USB port and contains two LDO regulators, one to generate 3.3V for the on-board debugger, and an adjustable LDO regulator for the target microcontroller PIC18F47K42 and its peripherals. The voltage from the USB connector can vary between 4.4V to 5.25V (according to the USB specification) and will limit the maximum voltage to the target. The figure below shows the entire power supply system on PIC18F47K42 Curiosity Nano.

PIC18F47K42 Curiosity Nano

Curiosity Nano

Figure 3-2. Power Supply Block Diagram

3.3.1 Target Regulator

The target voltage regulator is a MIC5353 variable output LDO. The on-board debugger can adjust the voltage output supplied to the kit target section by manipulating the MIC5353’s feedback voltage. The hardware implementation is limited to an approximate voltage range from 1.7V to 5.1V. Additional output voltage limits are configured in the debugger firmware to ensure that the output voltage never exceeds the hardware limits of the PIC18F47K42 microcontroller. The voltage limits configured in the on-board debugger on PIC18F47K42 Curiosity Nano are 2.3-5.1V.

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WARNING

PIC18F47K42 Curiosity Nano

Curiosity Nano

Info: The target voltage is set to 3.3V in production. It can be changed through MPLAB X

project properties. Any change to the target voltage is persistent, even through a power toggle.

The MIC5353 supports a maximum current load of 500 mA. It is an LDO regulator in a small package, placed on a small PCB, and the thermal shutdown condition can be reached at lower loads than 500 mA. The maximum current load depends on the input voltage, the selected output voltage, and the ambient temperature. The figure below shows the safe operating area for the regulator, with an input voltage of

5.1V and an ambient temperature of 23°C.

Figure 3-3. Target Regulator Safe Operation Area

3.3.2 External Supply

PIC18F47K42 Curiosity Nano can be powered by an external voltage instead of the on-board target regulator. When the Voltage Off (VOFF) pin is shorted to ground (GND) the on-board debugger firmware disables the target regulator, and it is safe to apply an external voltage to the VTG pin.

Applying an external voltage to the VTG pin without shorting VOFF to GND may cause permanent damage to the kit.

Absolute maximum external voltage is 5.5V for the on-board level shifters, and the standard operating condition of the PIC18F47K42 is 2.3-5.5V. Applying a higher voltage may cause permanent damage to the kit.

Programming, debugging, and data streaming is still possible with an external power supply: The debugger and signal level shifters will be powered from the USB cable. Both regulators, the debugger, and the level shifters are powered down when the USB cable is removed.

3.3.3 VBUS Output Pin

PIC18F47K42 Curiosity Nano has a VBUS output pin which can be used to power external components that need a 5V supply. The VBUS output pin has a PTC fuse to protect the USB against short circuits. A

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DS50002899A-page 11

side effect of the PTC fuse is a voltage drop on the VBUS output with higher current loads. The chart

Target Power strap (top side)

below shows the voltage versus the current load of the VBUS output.

Figure 3-4. VBUS Output Voltage vs. Current

3.4 Target Current Measurement

Power to the PIC18F47K42 is connected from the on-board power supply and VTG pin through a 100-mil pin header cut Target Power strap marked with “POWER” in silkscreen (J101). To measure the power consumption of the PIC18F47K42 and other peripherals connected to the board, cut the Target Power Strap and connect an ammeter over the strap.

PIC18F47K42 Curiosity Nano

Curiosity Nano

Figure 3-5. Target Power Strap

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Tip: A 100-mil pin header can be soldered into the Target Power strap (J101) footprint for easy connection of an ammeter. Once the ammeter is not needed anymore, place a jumper-cap on the pin header.

Info: The on-board level shifters will draw a small amount of current even when they are not in use. A maximum of 10 µA can be drawn from the target power net, and an additional 2 µA can be drawn from each I/O pin connected to a level shifter for a total of 20 µA. Disconnect the onboard debugger and level shifters as described in Section 3.5 Disconnecting the On-Board

Debugger and keep any I/O pin connected to a level shifter in tri-state to prevent leakage.

3.5 Disconnecting the On-Board Debugger

The block diagram below shows all connections between the debugger and the PIC18F47K42 microcontroller. The rounded boxes represent connections to the board edge on PIC18F47K42 Curiosity Nano. The signal names shown in Figure 3-1 are printed in silkscreen on the bottom side of the board.

Figure 3-6. On-Board Debugger Connections to the PIC18F47K42

PIC18F47K42 Curiosity Nano

Curiosity Nano

VOFF

LDO

CDC RX

CDCTX

VTG

Power Supply strap Target Power strap

VCC_EDGE

VCC_LEVEL

DBG0

DBG1

DBG2

DBG3

CDC TX

CDC RX

GPIO straps

VCC_TARGET

TARGETLevel-Shift

DBG0

DBG1

USB

DEBUGGER

VBUS

LDO

VCC_P3V3

PA04/PA06

PA07

PA08

PA16

PA00

PA01

DIR x 5

DBG2

DBG3

By cutting the GPIO straps with a sharp tool, as shown in Figure 3-7, all I/Os connected between the debugger and the PIC18F47K42 are completely disconnected. To completely disconnect the target regulator and level shifter power from the target, cut the Power Supply strap (J100) as shown in Figure

3-7.

Info: Cutting the connections to the debugger will disable programming, debugging, data streaming, and the target power supply. The signals will also be disconnected from the board edge next to the on-board debugger section.

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Tip: Solder in 0Ω resistors across the footprints or short-circuit them with tin solder to

GPIO straps (bottom side) Power Supply strap (top side)

reconnect any cut signals.

Figure 3-7. Kit Modifications

PIC18F47K42 Curiosity Nano

Curiosity Nano

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DS50002899A-page 14

4. Hardware User Guide

USB

DEBUGGER

PIC18F47K42

SW0

LED0

PS LED

NC

ID

CDC RX

RD0

CDC TX

RD1

DBG1

RB6ICSPCLK

DBG2

RE2SW0

RC2

TX

RC3

RX

RB2

SDA

RB1

SCL

RC4

MOSI

RC5

MISO

RC6

SCK

RD4

SS

GND

RB0

TX

RB3

RX

RB4

RC7

RD0

TX

RD1

RX

RD2

RD3

GND

VBUS

VOFF

DBG3

RE3 MCLR

DBG0

RB7 ICSPDAT

GND

VTG

RA7

ANA7

RA6

ANA6

RA5

ANA5

RA4

ANA4 PWM

RA3

ANA3 PWM

RA2

ANA2

RA1

ANA1

RA0

ANA0

GND

RD7

RD6

RD5

RB5

(RC1)

SOSCI

(RC0)

SOSCO

RE1

RE0

LED0

GND

PIC18F47K42

CURIOSITY NANO

Analog

Debug

I2C

SPI

UART

Shared pinout

Peripheral

Port

PWM

Power

Ground

4.1 Connectors

4.1.1 PIC18F47K42 Curiosity Nano Pinout

All the PIC18F47K42 I/O pins are accessible at the edge connectors on the board. The image below shows the kit pinout.

Figure 4-1. PIC18F47K42 Curiosity Nano Pinout

PIC18F47K42 Curiosity Nano

Hardware User Guide

4.1.2 Using Pin Headers

The edge connector footprint on PIC18F47K42 Curiosity Nano has a staggered design where each of the holes is shifted 8 mil (~0.2 mm) off center. The hole shift allows the use of regular 100-mil pin headers on the kit without soldering. Once the pin headers are firmly in place, they can be used in normal applications like pin sockets and prototyping boards without any issues.

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Tip: Start at one end of the pin header and gradually insert the header along the length of the board. Once all the pins are in place, use a flat surface to push them all the way in.

Tip: For applications where the pin headers will be used permanently, it is still recommended to solder them in place.

Important: Once the pin headers are in place, they are hard to remove by hand. Use a set of pliers and carefully remove the pin headers to avoid damage to the pin headers and printed circuit board.

4.2 Peripherals

4.2.1 LED

There is one yellow user LED available on the PIC18F47K42 Curiosity Nano kit that can be controlled by either GPIO or PWM. The LED can be activated by driving the connected I/O line to GND.

PIC18F47K42 Curiosity Nano

Hardware User Guide

Table 4-1. LED Connection

PIC18F47K42 Pin Function Shared Functionality

RE0 Yellow LED0 Edge connector

4.2.2 Mechanical Switch

The PIC18F47K42 Curiosity Nano has one mechanical switch. This is a generic user-configurable switch. When the switch is pressed, it will drive the I/O line to ground (GND).

Tip: There is no externally connected pull-up resistor on the switch. To use the switch, make sure that an internal pull-up resistor is enabled on pin RE2.

Table 4-2. Mechanical Switch

PIC18F47K42 Pin Description Shared Functionality

RE2 User switch (SW0) Edge connector

4.2.3 Crystal

The PIC18F47K42 Curiosity Nano board has a footprint for a 32.768 kHz crystal.

The crystal footprint is connected to the PIC18F47K42 by default, but the GPIOs are routed out to the edge connector through open solder straps. The two I/O lines routed to the edge connector are disconnected by default to both reduce the chance of contention to the crystal as well as removing excessive capacitance on the lines when using the crystal. To use the pins RC0 and RC1 as GPIO on the edge connector, some hardware modification is needed. Add a solder blob to the open straps on the

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DS50002899A-page 16

bottom side to connect the routing. The crystal should be disconnected when using the pin as GPIO, as this might harm the crystal.

Table 4-3. Crystal Connections

PIC18F47K42 Pin Function Shared Functionality

RC0 SOSC0 (Crystal output) Edge connector

RC1 SOSCI (Crystal input) Edge connector

4.2.4 On-Board Debugger Implementation

PIC18F47K42 Curiosity Nano features an on-board debugger that can be used to program and debug the PIC18F47K42 using ICSP. The on-board debugger also includes a Virtual Com port interface over UART and DGI GPIO. Microchip MPLAB® X can be used as a front-end for the on-board debugger for programming and debugging. Data Visualizer can be used as a front-end for the CDC and DGI GPIO.

4.2.4.1 On-Board Debugger Connections

The table below shows the connections between the target and the debugger section. All connections between the target and the debugger are tri-stated as long as the debugger is not actively using the interface. Hence there is little contamination of the signals the pins can be configured to anything the user wants.

PIC18F47K42 Curiosity Nano

Hardware User Guide

For further information on how to use the capabilities of the on-board debugger, see Section 3. Curiosity

Nano.

Table 4-4. On-board Debugger Connections

PIC18F47K42 Debugger Function Shared Functionality

RD1 CDC TX UART RX (PIC18F47K42 RX

line)

RD0 CDC RX UART TX (PIC18F47K42 TX line) Edge connector

RB7 DBG0 ICSPDAT Edge connector

RB6 DBG1 ICSPCLK Edge connector

RE2 DBG2 GPIO Edge connector

RE3 DBG3 MCLR Edge connector

Edge connector

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PIC18F47K42 Curiosity Nano

Hardware Revision History and Known Issues

5. Hardware Revision History and Known Issues

This user guide provides the latest available revision of the kit. This section contains information about known issues, a revision history of older revisions, and how older revisions differ from the latest revision.

5.1 Identifying Product ID and Revision

The revision and product identifier of the PIC18F47K42 Curiosity Nano can be found in two ways; either through Microchip MPLAB® X or by looking at the sticker on the bottom side of the PCB.

By connecting a PIC18F47K42 Curiosity Nano to a computer with Microchip MPLAB® X running, an information window will pop up. The first six digits of the serial number, which is listed under kit details, contain the product identifier and revision.

The same information can be found on the sticker on the bottom side of the PCB. Most kits will print the identifier and revision in plain text as A09-nnnn\rr, where “nnnn” is the identifier and “rr” is the revision. The boards with limited space have a sticker with only a QR-code, containing the product identifier, revision and the serial number.

The serial number string has the following format:

"nnnnrrssssssssss"

n = product identifier

r = revision

s = serial number

The product identifier for PIC18F47K42 Curiosity Nano is A09-3244.

5.2 Revision 2

Revision 2 adds the Target Power strap and staggered the holes along the edge of the PCB for convenient use of pin headers without soldering.

5.3 Revision 1

Revision 1 is the initially released revision with limited distribution.

The holes along the edge of revision 1 are not staggered as described in 4.1.2 Using Pin Headers, and requires that any pin headers must be soldered into the board for use.

Revision 1 does not have the Target Power strap described in 3.4 Target Current Measurement, instead current can be measured across the Power Supply strap as described in 3.5 Disconnecting the On-

Board Debugger.

User Guide

DS50002899A-page 18

PIC18F47K42 Curiosity Nano

Hardware Revision History and Known Issues

Figure 5-1. PIC18F47K42 Curiosity Nano Curiosity Nano Revision 1

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DS50002899A-page 19

6. Document Revision History

Doc. rev. Date Comment

A 06/2019 Initial document release.

PIC18F47K42 Curiosity Nano

Document Revision History

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DS50002899A-page 20

1

2

3

4

5

6

7

8

D D

C C

B B

A A

2 of 4

PIC18F47K42 Curiosity Nano

09.05.2019

PIC18F47K42_Curiosity_Nano_Target_MCU.SchDoc

Project Title

PCB Assembly Number: PCBA Revision:

File:

PCB Number: PCB Revision:

Designed with

Drawn By:

Microchip Norway

Sheet Title

Target MCU

Engineer:

TF, HN

A08-2985 2

Size

A3

A09-3244 2

Page:

Date:

Altium.com

GND

VCC_TARGET

32.768kHz

Kyocera Corporation

ST3215SB32768C0HPWBB

XC200

N.M.

10p

C203

N.M.

GND

100n

C202

GND

VCC_TARGET

100n

C200

GND

32kHz CRYSTAL

1k

R203

1

k

R

2

0

3

USER LED

VCC_TARGET

GND

USER BUTTON

1k

1

k

R202

YELLOW LED

SML-D12Y1WT86

21

D200

TS604VM1-035CR

1 3

42

SW200

GND

GNDGND

GND GND

J203

J201 J202

J204

J209

PIC18F47K42

2.2uF

C205

GND

DBG0

CDC_UART

TX

RX

UART

CDC_TX

CDC_RX

DBG2

DBG1

DBG3

DBG2

DEBUGGER CONNECTIONS

DBG1

DBG3

DBG0

PIC18F47K42

Signal

DBG0

DBG1

DBG2

DBG3

Interface

CDC TX

CDC RX

UART RX

UART TX

VTG

VOFF

ID_SYS

VOFF

TARGET BULK

100k R200

VCC_TARGET

100

k

R

2

0

MCLR PULL-UP

VBUS

RC7

RD4_SS

RD5

RD6

RD7

RB0_TX

RB1_SCL

RB2_SDA

RC0_SOSCO

RA6_ANA6

RA7_ANA7

RE2_SW0

RE1

RE0_LED0

RA5_ANA5

RA4_ANA4_PWM

RB3_RX

RB4

RB5

RB6_ICSPCLK

RB7_ICSPDAT

RE3_MCLR

RA0_ANA0

RA1_ANA1

RA2_ANA2

RA3_ANA3_PWM

RC6_SCK

RC5_MISO

RC4_MOSI

RD3

RD2

RD0_TX RD1_RX

RC3_RX

RC2_TX

RC1_SOSCI

CDC RX3CDC TX4DBG15DBG260 TX71 RX82 SDA93 SCL104 MOSI115 MISO126 SCK137 SS14GND150 (TX)161 (RX)17218319020GND

24

DBG346DBG0

45

GND

44

VCC

43

PWM 3

38

ADC 237ADC 136ADC 0

35

GND

34430426

GND

25

ADC 742ADC 641ADC 5

40

PWM 4

39

DEBUGGER

TARGET

ID

2

VOFF

47

1212223

23

5276287295316327

33

RESERVED

1

VBUS

48

CNANO48-pin edge connector

J200

RD0_TX

RD1_RX

RB6_ICSPCLK

RE2_SW0

RC2_TX

RC3_RX

RB2_SDA

RB1_SCL

RC4_MOSI

RC5_MISO

RC6_SCK

RD4_SS

RD0_TX

RD1_RX

RD2

RD3

RB0_TX

RB3_RX

RB4

RC7

RE3_MCLR

RB7_ICSPDAT

RA7_ANA7

RA6_ANA6

RA5_ANA5

RA4_ANA4_PWM

RA3_ANA3_PWM

RA2_ANA2

RA1_ANA1

RA0_ANA0

RD7

RD6

RD5

RB5

RC1_SOSCI

RC0_SOSCO

RE1

RE0_LED0

RE2_SW0

RE0_LED0

J205

J206

RC0_SOSCO

RC1_SOSCI

ICSPDAT

ICSPCLK

GPIO

MCLR

2.3V - 5.5V

PROG/DEBUG PULL

47k

4

7

k

R204

47k

4

7

k

R205

GND

DBG0

DBG1

J211

J210

J207

J208

GND

RE3_MCLR

PIC18F47K42T-I/MV

RC71RD42RD53RD64RD7

5

VSS6VDD

7

RB08RB19RB2

10

RB3

11

RB4

12

RB5

13

RB6/ICSPCLK

14

RB7/ICSPDAT

15

RE3/MCLR

16

RA0

17

RA1

18

RA2

19

RA3

20

RA421RA522RE023RE124RE2

25

VDD26VSS

27

RA728RA629RC0

30

RC1

31

RC2

32

RC3

33

RD0

34

RD1

35

RD2

36

RD3

37

RC4

38

RC5

39

RC6

40

PAD

41

U200

(RC1)_SOSCI

(RC0)_SOSCO

NC

10p

C204

N.M.

VCC_EDGE

RX/TX on the header denotes the input/output

direction of the signal respective to it's source.

CDC TX is output from the on-board debugger.

CDC RX is input to the on-board debugger.

TX is output from the TARGET device.

RX is input to the TARGET device.

mounted close to slave device(s).

7. Appendix

7.1 Schematic

Figure 7-1. PIC18F47K42 Curiosity Nano Schematic

PIC18F47K42 Curiosity Nano

Appendix

User Guide

DS50002899A-page 21

1

2

3

4

5

6

7

8

D D

C C

B B

A A

3 of 4

PIC18F47K42 Curiosity Nano

09.05.2019

PIC18F47K42_Curiosity_Nano_Debugger.SchDoc

Project Title

PCB Assembly Number: PCBA Revision:

File:

PCB Number: PCB Revision:

Designed with

Drawn By:

Microchip Norway

Sheet Title

Debugger

Engineer:

TF, HN

A08-2985 2

Size

A3

A09-3244 2

Page:

Date:

Altium.com

DEBUGGER USB MICRO-B CONNECTOR

GND

USBD_P

USBD_N

100n

C107

100n

C108

RX

TX

UART

CDC_UART

1k

R107

VCC_P3V3

100n

C104

GND

SRST

STATUS_LED

SHIELD

VBUS

VCC_P3V3

GND

TP100

Testpoint Array

1 2

3 4

5 6

7 8

9 10

TCK

TDO

TMS

Vsup

TDI GND

TRST

SRST

VTref

GND

J102

GND

4.7uF

C100

DBG0

21

GREEN LED

SML-P12MTT86R

D100

VBUS

1

D-2D+3GND5SHIELD16SHIELD27ID4SHIELD38SHIELD4

9

MU-MB0142AB2-269

J105

PAD

33

PA001PA012PA023PA03

4

GND

10

VDDANA

9

PA045PA056PA067PA07

8

PA08

11

PA09

12

PA10

13

PA11

14

PA14

15

PA15

16

PA1617PA1718PA1819PA1920PA22

21

USB_SOF/PA23

22

USB_DM/PA2423USB_DP/PA25

24

PA27

25

RESETN

26

PA28

27

GND

28

VDDCORE

29

VDDIN

30

SWDCLK/PA30

31

SWDIO/PA31

32

SAMD21E18A-MUT

U100

VOUT1VOUT

2

GND

3

EN

4

VIN

6

NC

5

EP

7

MIC5528-3.3YMTU101 VCC_P3V3

GND

USBD_P

USBD_N

GND

1u

C106

VCC_MCU_CORE

VCC_P3V3

VOUT

G

N

GGD

3

VIN

NC

E

P

7

2.2uF

C101

GND

74LVC1T45FW4-7

VCCA

1

VCCB

6

A

3

GND

2

DIR5B

4

U103

VCC_P3V3

GND

74LVC1T45FW4-7

VCCA

1

VCCB

6

A

3

GND

2

DIR5B

4

U104

VCC_P3V3

GND

74LVC1T45FW4-7

VCCA

1

VCCB

6

A

3

GND

2

DIR5B

4

U105

VCC_P3V3

GND

74LVC1T45FW4-7

VCCA

1

VCCB

6

A

3

GND

2

DIR5B

4

U107

VCC_P3V3

GND

DBG2

DBG3_CTRL

S1_0_TX

S1_1_RX

S0_2_TX

DAC

VTG_ADC

RESERVED

S0_3_CLK

DBG0_CTRL

CDC_TX_CTRL

BOOT

DEBUGGER POWER/STATUS LED

EN1BYP

6

VOUT

4

GND

2

VIN

3

NC/ADJ

5

GND

7

MIC5353U102

VCC_VBUS

100n

C102

GND

47k

R101

27k

R104

GND

33k

R106

VOUT

VIN

NC/ADJ

7

4

7

k

R

101

2

7

k

R

104

2.2uF

C103

GND

1k

R108

J100

VCC_LEVELVCC_REGULATOR

74LVC1T45FW4-7

VCCA

1

VCCB

6

A

3

GND

2

DIR5B

4

U106

VCC_P3V3

GND

DBG1

CDC_RX

CDC_TX

DBG3

DBG1_CTRL

DEBUGGER REGULATOR

REG_ENABLE

47k

4

7

k

R103

VCC_LEVEL

47k

4

7

k

R102

47k

4

7

k

R105

SWCLK

GND

47k

4

7

k

R100

GND

DBG2

S0_0_RX

DBG1_CTRL

DBG0_CTRL

DBG3 OPEN DRAIN

TARGET ADJUSTABLE REGULATOR

SRST

DEBUGGER TESTPOINTs

DBG2_CTRL

VOFF

CDC_RX_CTRL

47k

4

7

k

R109

DBG1

CDC_TX_CTRL

CDC_RX_CTRL

SWCLK

REG_ADJUST

DBG2_GPIO

DBG3_CTRL

DBG2_CTRL

UPDI

GPIO

RESET

Signal

DBG0

DBG1

DBG2

DBG3

ICSP

Interface

DAT

CLK

GPIO

MCLR

DBG3

CDC TX

CDC RX

UART RX

UART TX

UART RX

UART TX

TARGET TARGET

1k

R110

VBUS_ADC

DMN65D8LFB

1

2 3

Q101

VCC - -

ID_SYS

VOFF

1k

R112

VCC_P3V3

1

k

R

112

VTG_ADC

DAC

MIC94163

VIN

B2

VOUT

A1

VIN

A2

EN

C2

GND

C1

VOUT

B1

U108

GND

ID_SYS

VTG_EN

VBUS_ADC

SWDIO

ID_SYS

TP101

GND

SWDIO

VOFF

47k

4

7

k

R111

GND

ID PIN

MC36213

F100

VCC_VBUS

VCC_EDGE

J101

VCC_TARGET

Programming connector

for factory programming of

Debugger

MIC5528:

Vin: 2.5V to 5.5V

Vout: Fixed 3.3V

Imax: 500mA

Dropout: 260mV @ 500mA

Adjustable output and limitations:

- The onboard debugger can adjust the output voltage of the regulator between 1.25V and 5.1V to the t arget.

- The level shifters have a minimal voltage level of 1.65V and will limit the minimum operating voltage allowe d for the

target to still allow communication.

- The output switch has a minimal volatege level of 1.70V and will limit the minimum voltage delivered t o the target.

- Firmware configuration will limit the voltage range to be within the the target specification.

- Firmware feedback loop will adjust the output voltage accuracy to within 0.5%.

PTC Resettable fuse:

Hold current: 500mA

Trip current: 1000mA

MIC5353:

Vin: 2.6V to 6V

Vout: 1.25V to 5.1V

Imax: 500mA

Dropout (typical): 50mV@150mA, 160mV @ 500mA

Accuracy: 2% initial

Thermal shutdown and current limit

Maximum output voltage is limited by the input voltage and the dropout voltage in the regulator.

(Vmax = Vin - dropout)

J100:

Cut-strap used for full separation of target power from the level shifters and on-board regulators.

- For current measurements using an external power supply, this strap could be cut for more

accurate measurements. Leakage back through the switch is in the micro ampere range.

J101:

This is footprint for a 1x2 100mil pitch pin-header that can be used for easy current measurement

to the target microcontroller and the LED / Button. To use the footprint:

- Cut the track between the holes, and mount a pin-header

PIC18F47K42 Curiosity Nano

Appendix

User Guide

DS50002899A-page 22

7.2 Assembly Drawing

PIC®

MCU

b

PAC10002

PAC10001

COC100

PAC10102

PAC10101

COC101

PAC10201

PAC10202

COC102

PAC10301

PAC10302

COC103

PAC10402

PAC10401

COC104

PAC10602

PAC10601

COC106

PAC10702

PAC10701

COC107

PAC10802

PAC10801

COC108

PAC20001

PAC20002

COC200

PAC20201

PAC20202

COC202

PAC20302

PAC20301

COC203

PAC20402

PAC20401

COC204

PAC20501

PAC20502

COC205

PAD10001

PAD10002

COD100

PAD20002

PAD20001

COD200

PAF10001 PAF10002

COF100

PAJ10002

PAJ10001

COJ100

PAJ10102

PAJ10101

COJ101

PAJ10206

PAJ10205

PAJ10204

PAJ10203

PAJ10202

PAJ10201

COJ102

PAJ105011

PAJ105010

PAJ10508

PAJ10509

PAJ10507

PAJ10506

PAJ10501 PAJ10502 PAJ10503 PAJ10504 PAJ10505

PAJ10500

COJ105

PAJ200048

PAJ200047

PAJ200024

PAJ20002

PAJ20001

PAJ200046

PAJ200045

PAJ200044

PAJ200043

PAJ200042

PAJ200041

PAJ200040

PAJ200039

PAJ200038

PAJ200037

PAJ200036

PAJ200035

PAJ200034

PAJ200033

PAJ200032

PAJ200031

PAJ200030

PAJ200029

PAJ20003

PAJ20004

PAJ20005

PAJ20006

PAJ20007

PAJ20008

PAJ20009

PAJ200010

PAJ200011

PAJ200012

PAJ200013

PAJ200014

PAJ200015

PAJ200016

PAJ200017

PAJ200018

PAJ200019

PAJ200020

PAJ200021

PAJ200022

PAJ200023

PAJ200026

PAJ200025

PAJ200027

PAJ200028

PAJ20000

COJ200

PAJ20102

PAJ20101

COJ201

PAJ20202

PAJ20201

COJ202

PAJ20302

PAJ20301

COJ203

PAJ20402

PAJ20401

COJ204

PAJ20502

PAJ20501

COJ205

PAJ20602

PAJ20601

COJ206

PAJ20702

PAJ20701

PAJ20705

COJ207

PAJ20801

PAJ20802

PAJ20805

COJ208

PAJ20901

PAJ20902

COJ209

PAJ21002

PAJ21001

COJ210

PAJ21102

PAJ21101

COJ211

COLABEL1

PAQ10101

PAQ10102

PAQ10103

PAQ10100

COQ101

PAR10001

PAR10002

COR100

PAR10102 PAR10101

COR101

PAR10201

PAR10202

COR102

PAR10301

PAR10302

COR103

PAR10402 PAR10401

COR104

PAR10501

PAR10502

COR105

PAR10602

PAR10601

COR106

PAR10701

PAR10702

COR107

PAR10802

PAR10801

COR108

PAR10902

PAR10901

COR109

PAR11002

PAR11001

COR110

PAR11102

PAR11101

COR111

PAR11202

PAR11201

COR112

PAR20001

PAR20002

COR200

PAR20201

PAR20202

COR202

PAR20301

PAR20302

COR203

PAR20401

PAR20402

COR204

PAR20501

PAR20502

COR205

PASW20003

PASW20004

PASW20002

PASW20001

COSW200

PATP10001

COTP100

PATP10101

COTP101

PAU10009

PAU10008

PAU10007 PAU10006

PAU10005

PAU10004 PAU10003

PAU10002 PAU10001

PAU100010

PAU100011

PAU100012

PAU100013

PAU100014

PAU100015

PAU100016

PAU100017

PAU100018 PAU100019

PAU100020

PAU100021 PAU100022

PAU100023 PAU100024

PAU100025

PAU100026

PAU100027

PAU100028

PAU100029

PAU100030

PAU100031

PAU100032

PAU100033

COU100

PAU10101

PAU10102

PAU10103

PAU10106

PAU10105

PAU10104

PAU10107

PAU10100

COU101

PAU10201 PAU10202

PAU10203

PAU10206 PAU10205

PAU10204

PAU10207

COU102

PAU10301

PAU10302 PAU10303

PAU10304

PAU10305

PAU10306

PAU10300

COU103

PAU10401

PAU10402

PAU10403

PAU10404

PAU10405

PAU10406

PAU10400

COU104

PAU10501

PAU10502 PAU10503

PAU10504

PAU10505

PAU10506

PAU10500

COU105

PAU10601

PAU10602 PAU10603

PAU10604

PAU10605

PAU10606

PAU10600

COU106

PAU10701

PAU10702 PAU10703

PAU10704

PAU10705

PAU10706

PAU10700

COU107

PAU1080C2

PAU1080C1

PAU1080B2

PAU1080B1

PAU1080A2

PAU1080A1

COU108

PAU20001

PAU20002

PAU20003

PAU20004

PAU20005

PAU20006

PAU20007

PAU20008

PAU20009

PAU200010

PAU200011

PAU200012

PAU200013

PAU200014

PAU200015

PAU200016

PAU200017

PAU200018

PAU200019

PAU200020

PAU200021

PAU200022

PAU200023

PAU200024

PAU200025

PAU200026

PAU200027

PAU200028

PAU200029

PAU200030

PAU200031

PAU200032

PAU200033

PAU200034

PAU200035

PAU200036

PAU200037

PAU200038

PAU200039

PAU200040

PAU200041

PAU20000

COU200

PAXC20001

PAXC20002

COXC200

c

t

R

PAC10002

PAC10001

COC100

PAC10102

PAC10101

COC101

PAC10201

PAC10202

COC102

PAC10301

PAC10302

COC103

PAC10402

PAC10401

COC104

PAC10602

PAC10601

COC106

PAC10702

PAC10701

COC107

PAC10802

PAC10801

COC108

PAC20001

PAC20002

COC200

PAC20201

PAC20202

COC202

PAC20302

PAC20301

COC203

PAC20402

PAC20401

COC204

PAC20501

PAC20502

COC205

PAD10001

PAD10002

COD100

PAD20002

PAD20001

COD200

PAF10001 PAF10002

COF100

PAJ10002

PAJ10001

COJ100

PAJ10102

PAJ10101

COJ101

PAJ10206

PAJ10205

PAJ10204

PAJ10203

PAJ10202

PAJ10201

COJ102

PAJ105011

PAJ105010

PAJ10508

PAJ10509

PAJ10507

PAJ10506

PAJ10501 PAJ10502 PAJ10503 PAJ10504 PAJ10505

PAJ10500

COJ105

PAJ200048

PAJ200047

PAJ200024

PAJ20002

PAJ20001

PAJ200046

PAJ200045

PAJ200044

PAJ200043

PAJ200042

PAJ200041

PAJ200040

PAJ200039

PAJ200038

PAJ200037

PAJ200036

PAJ200035

PAJ200034

PAJ200033

PAJ200032

PAJ200031

PAJ200030

PAJ200029

PAJ20003

PAJ20004

PAJ20005

PAJ20006

PAJ20007

PAJ20008

PAJ20009

PAJ200010

PAJ200011

PAJ200012

PAJ200013

PAJ200014

PAJ200015

PAJ200016

PAJ200017

PAJ200018

PAJ200019

PAJ200020

PAJ200021

PAJ200022

PAJ200023

PAJ200026

PAJ200025

PAJ200027

PAJ200028

PAJ20000

COJ200

PAJ20102

PAJ20101

COJ201

PAJ20202

PAJ20201

COJ202

PAJ20302

PAJ20301

COJ203

PAJ20402

PAJ20401

COJ204

PAJ20502

PAJ20501

COJ205

PAJ20602

PAJ20601

COJ206

PAJ20702

PAJ20701

PAJ20705

COJ207

PAJ20801

PAJ20802

PAJ20805

COJ208

PAJ20901

PAJ20902

COJ209

PAJ21002

PAJ21001

COJ210

PAJ21102

PAJ21101

COJ211

COLABEL1

PAQ10101

PAQ10102

PAQ10103

PAQ10100

COQ101

PAR10001

PAR10002

COR100

PAR10102 PAR10101

COR101

PAR10201

PAR10202

COR102

PAR10301

PAR10302

COR103

PAR10402 PAR10401

COR104

PAR10501

PAR10502

COR105

PAR10602

PAR10601

COR106

PAR10701

PAR10702

COR107

PAR10802

PAR10801

COR108

PAR10902

PAR10901

COR109

PAR11002

PAR11001

COR110

PAR11102

PAR11101

COR111

PAR11202

PAR11201

COR112

PAR20001

PAR20002

COR200

PAR20201

PAR20202

COR202

PAR20301

PAR20302

COR203

PAR20401

PAR20402

COR204

PAR20501

PAR20502

COR205

PASW20003

PASW20004

PASW20002

PASW20001

COSW200

PATP10001

COTP100

PATP10101

COTP101

PAU10009

PAU10008

PAU10007 PAU10006

PAU10005

PAU10004 PAU10003

PAU10002 PAU10001

PAU100010

PAU100011

PAU100012

PAU100013

PAU100014

PAU100015

PAU100016

PAU100017

PAU100018 PAU100019

PAU100020

PAU100021 PAU100022

PAU100023 PAU100024

PAU100025

PAU100026

PAU100027

PAU100028

PAU100029

PAU100030

PAU100031

PAU100032

PAU100033

COU100

PAU10101

PAU10102

PAU10103

PAU10106

PAU10105

PAU10104

PAU10107

PAU10100

COU101

PAU10201 PAU10202

PAU10203

PAU10206 PAU10205

PAU10204

PAU10207

COU102

PAU10301

PAU10302 PAU10303

PAU10304

PAU10305

PAU10306

PAU10300

COU103

PAU10401

PAU10402

PAU10403

PAU10404

PAU10405

PAU10406

PAU10400

COU104

PAU10501

PAU10502 PAU10503

PAU10504

PAU10505

PAU10506

PAU10500

COU105

PAU10601

PAU10602 PAU10603

PAU10604

PAU10605

PAU10606

PAU10600

COU106

PAU10701

PAU10702 PAU10703

PAU10704

PAU10705

PAU10706

PAU10700

COU107

PAU1080C2

PAU1080C1

PAU1080B2

PAU1080B1

PAU1080A2

PAU1080A1

COU108

PAU20001

PAU20002

PAU20003

PAU20004

PAU20005

PAU20006

PAU20007

PAU20008

PAU20009

PAU200010

PAU200011

PAU200012

PAU200013

PAU200014

PAU200015

PAU200016

PAU200017

PAU200018

PAU200019

PAU200020

PAU200021

PAU200022

PAU200023

PAU200024

PAU200025

PAU200026

PAU200027

PAU200028

PAU200029

PAU200030

PAU200031

PAU200032

PAU200033

PAU200034

PAU200035

PAU200036

PAU200037

PAU200038

PAU200039

PAU200040

PAU200041

PAU20000

COU200

PAXC20001

PAXC20002

COXC200

Figure 7-2. PIC18F47K42 Curiosity Nano Assembly Drawing Top

Figure 7-3. PIC18F47K42 Curiosity Nano Assembly Drawing Bottom

PIC18F47K42 Curiosity Nano

Appendix

User Guide

DS50002899A-page 23

USB

DEBUGGER

PIC18F47K42

SW0

LED0

PS LED

NC

ID

CDC RX

RD0

CDC TX

RD1

DBG1

RB6ICSPCLK

DBG2

RE2SW0

RC2

TX

RC3

RX

RB2

SDA

RB1

SCL

RC4

MOSI

RC5

MISO

RC6

SCK

RD4

SS

GND

RB0

TX

RB3

RX

RB4

RC7

RD0

TX

RD1

RX

RD2

RD3

GND

VBUS

VOFF

DBG3

RE3 MCLR

DBG0

RB7 ICSPDAT

GND

VTG

RA7

ANA7

RA6

ANA6

RA5

ANA5

RA4

ANA4 PWM

RA3

ANA3 PWM

RA2

ANA2

RA1

ANA1

RA0

ANA0

GND

RD7

RD6

RD5

RB5

(RC1)

SOSCI

(RC0)

SOSCO

RE1

RE0

LED0

GND

PIC18F47K42

CURIOSITY NANO

Analog

Debug

I2C

SPI

UART

Shared pinout

Peripheral

Port

PWM

Power

Ground

1

AN PWM

RST INT

CS RX

SCK TX

MISO SCL

MOSI SDA

+3.3V +5V

GND GND

2

AN PWM

RST INT

CS RX

SCK TX

MISO SCL

MOSI SDA

+3.3V +5V

GND GND

3

AN PWM

RST INT

CS RX

SCK TX

MISO SCL

MOSI SDA

+3.3V +5V

GND GND

Xplained Pro Extension

EXT1

1 2

19 20

Curiosity Nano Base

for click boards

TM

RA0 RA3

RA7 RA6

RD4 RC3

RC6 RC2

RC5 RB1

RC4 RB2

+3.3V +5V

GND GND

RA1 RA4

RC7 RB4

RD6 RB3

RC6 RB0

RC5 RB1

RC4 RB2

+3.3V +5V

GND GND

RA2 RA5

RD5 RB5

RD7 RC3

RC6 RC2

RC5 RB1

RC4 RB2

+3.3V +5V

GND GND

ID GND

RA1 RA2

RC7 RD5

RA4 RA5

RB4 RD7

RB2 RB1

RB3 RB0

RD6 RC4

RC5 RC6

GND +3.3V

PIC18F47K42 Curiosity Nano

Appendix

7.3 Curiosity Nano Base for Click boards

Figure 7-4. PIC18F47K42 Curiosity Nano Pinout Mapping

™

User Guide

DS50002899A-page 24

7.4 Connecting External Debuggers

2

3

4

5

678

1

MCLR VDD Ground DATA

CLOCK

3 = Ground

4 = PGD

5 = PGC

6 = Unused

7 = Unused

8 = Unused

2 = VDD

1 = MCLR

MPLAB® PICkit™ 4

USB

DEBUGGER

PS LED

NC

ID

CDC RX

CDC TX

DBG1

DBG2

VBUS

VOFF

DBG3

DBG0

GND

VTG

CURIOSITY NANO

CAUTION

Even though there is an on-board debugger, external debuggers can be connected directly to the PIC18F47K42 Curiosity Nano to program/debug the PIC18F47K42. The on-board debugger keeps all the pins connected to the PIC18F47K42 and board edge in tri-state when not actively used. Therefore, the on-board debugger will not interfere with any external debug tools.

Figure 7-5. Connecting the MPLAB PICkit™ 4 In-Circuit Debugger/Programmer to PIC18F47K42 Curiosity Nano

PIC18F47K42 Curiosity Nano

Appendix

The MPLAB PICkit 4 In-circuit Debugger/Programmer is capable of delivering high voltage on the MCLR pin. R110 can be permanently damaged by the high voltage. If R110 is broken, the on-board debugger can not enter programming mode of the PIC18F47K42, and will typically fail at reading the device ID.

User Guide

DS50002899A-page 25

CAUTION

PIC18F47K42 Curiosity Nano

Appendix

To avoid contention between the external debugger and the on-board debugger, do not start any programming/debug operation with the on-board debugger through Microchip MPLAB® X or mass storage programming while the external tool is active.

User Guide

DS50002899A-page 26

PIC18F47K42 Curiosity Nano

The Microchip Website

Microchip provides online support via our website at http://www.microchip.com/. This website is used to make files and information easily available to customers. Some of the content available includes:

• 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 design partner 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

Product Change Notification Service

Microchip’s product change notification service helps keep customers current on Microchip products. Subscribers will receive email notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.

To register, go to http://www.microchip.com/pcn and follow the registration instructions.

Customer Support

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Embedded Solutions Engineer (ESE)

• Technical Support

Customers should contact their distributor, representative or ESE for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in this document.

Technical support is available through the web site at: http://www.microchip.com/support

Microchip Devices Code Protection Feature

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.”

User Guide

DS50002899A-page 27

PIC18F47K42 Curiosity Nano

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.

Legal Notice

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.

User Guide

DS50002899A-page 28

PIC18F47K42 Curiosity Nano

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.

©

ISBN: 978-1-5224-4712-2

Quality Management System

For information regarding Microchip’s Quality Management Systems, please visit http://

www.microchip.com/quality.

User Guide

DS50002899A-page 29

Worldwide Sales and Service

AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE

Corporate Office

2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support:

http://www.microchip.com/support

Web Address:

http://www.microchip.com

Atlanta

Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455

Austin, TX

Tel: 512-257-3370

Boston

Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088

Chicago

Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075

Dallas

Addison, TX Tel: 972-818-7423 Fax: 972-818-2924

Detroit

Novi, MI Tel: 248-848-4000

Houston, TX

Tel: 281-894-5983

Indianapolis

Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Tel: 317-536-2380

Los Angeles

Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Tel: 951-273-7800

Raleigh, NC

Tel: 919-844-7510

New York, NY

Tel: 631-435-6000

San Jose, CA

Tel: 408-735-9110 Tel: 408-436-4270

Canada - Toronto

Tel: 905-695-1980 Fax: 905-695-2078

Australia - Sydney

Tel: 61-2-9868-6733

China - Beijing

Tel: 86-10-8569-7000

China - Chengdu

Tel: 86-28-8665-5511

China - Chongqing

Tel: 86-23-8980-9588

China - Dongguan

Tel: 86-769-8702-9880

China - Guangzhou

Tel: 86-20-8755-8029

China - Hangzhou

Tel: 86-571-8792-8115

China - Hong Kong SAR

Tel: 852-2943-5100

China - Nanjing

Tel: 86-25-8473-2460

China - Qingdao

Tel: 86-532-8502-7355

China - Shanghai

Tel: 86-21-3326-8000

China - Shenyang

Tel: 86-24-2334-2829

China - Shenzhen

Tel: 86-755-8864-2200

China - Suzhou

Tel: 86-186-6233-1526

China - Wuhan

Tel: 86-27-5980-5300

China - Xian

Tel: 86-29-8833-7252

China - Xiamen

Tel: 86-592-2388138

China - Zhuhai

Tel: 86-756-3210040

India - Bangalore

Tel: 91-80-3090-4444

India - New Delhi

Tel: 91-11-4160-8631

India - Pune

Tel: 91-20-4121-0141

Japan - Osaka

Tel: 81-6-6152-7160

Japan - Tokyo

Tel: 81-3-6880- 3770

Korea - Daegu

Tel: 82-53-744-4301

Korea - Seoul

Tel: 82-2-554-7200

Malaysia - Kuala Lumpur

Tel: 60-3-7651-7906

Malaysia - Penang

Tel: 60-4-227-8870

Philippines - Manila

Tel: 63-2-634-9065

Singapore

Tel: 65-6334-8870

Taiwan - Hsin Chu

Tel: 886-3-577-8366

Taiwan - Kaohsiung

Tel: 886-7-213-7830

Taiwan - Taipei

Tel: 886-2-2508-8600

Thailand - Bangkok

Tel: 66-2-694-1351

Vietnam - Ho Chi Minh

Tel: 84-28-5448-2100

Austria - Wels

Tel: 43-7242-2244-39 Fax: 43-7242-2244-393

Denmark - Copenhagen

Tel: 45-4450-2828 Fax: 45-4485-2829

Finland - Espoo

Tel: 358-9-4520-820

France - Paris

Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79

Germany - Garching

Tel: 49-8931-9700

Germany - Haan

Tel: 49-2129-3766400

Germany - Heilbronn

Tel: 49-7131-72400

Germany - Karlsruhe

Tel: 49-721-625370

Germany - Munich

Tel: 49-89-627-144-0 Fax: 49-89-627-144-44

Germany - Rosenheim

Tel: 49-8031-354-560

Israel - Ra’anana

Tel: 972-9-744-7705

Italy - Milan

Tel: 39-0331-742611 Fax: 39-0331-466781

Italy - Padova

Tel: 39-049-7625286

Netherlands - Drunen

Tel: 31-416-690399 Fax: 31-416-690340

Norway - Trondheim

Tel: 47-72884388

Poland - Warsaw

Tel: 48-22-3325737

Romania - Bucharest

Tel: 40-21-407-87-50

Spain - Madrid

Tel: 34-91-708-08-90 Fax: 34-91-708-08-91

Sweden - Gothenberg

Tel: 46-31-704-60-40

Sweden - Stockholm

Tel: 46-8-5090-4654

UK - Wokingham

Tel: 44-118-921-5800 Fax: 44-118-921-5820

User Guide

DS50002899A-page 30

Microchip PIC18F47K42 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Table of Contents

1. Introduction

1.1 Features

1.2 Kit Overview

2. Getting Started

2.1 Curiosity Nano Quick Start

2.2 Design Documentation and Relevant Links

3. Curiosity Nano

3.1 On-board Debugger

3.1.1 Virtual COM Port

3.1.1.1 Overview

3.1.1.2 Limitations

3.1.1.3 Signaling

3.1.1.4 Advanced Use

3.1.2 Mass Storage Disk

3.1.2.1 Mass Storage Device

3.1.2.2 Configuration Words

3.2 Curiosity Nano Standard Pinout

Power Supply

3.3.1 Target Regulator

3.3.2 External Supply

3.3.3 VBUS Output Pin

3.4 Target Current Measurement

3.5 Disconnecting the On-Board Debugger

4. Hardware User Guide

4.1 Connectors

4.1.1 PIC18F47K42 Curiosity Nano Pinout

4.1.2 Using Pin Headers

4.2 Peripherals

4.2.1 LED

4.2.2 Mechanical Switch

4.2.3 Crystal

4.2.4 On-Board Debugger Implementation

4.2.4.1 On-Board Debugger Connections

5. Hardware Revision History and Known Issues

5.1 Identifying Product ID and Revision

5.2 Revision 2

5.3 Revision 1

6. Document Revision History

7. Appendix

7.1 Schematic

7.2 Assembly Drawing

7.4 Connecting External Debuggers

The Microchip Website

Product Change Notification Service

Customer Support

Microchip Devices Code Protection Feature

Legal Notice

Trademarks

Quality Management System

Worldwide Sales and Service