MPLAB® PICkitTM 4 In-Circuit Debugger QUICK START GUIDE C: 10 M: 100 Y: 100 K: 20 GETTING STARTED Install the Latest Software 1 Download the MPLAB X IDE software from www.microchip.com/mplabx and install onto your computer. The installer automatically loads the USB drivers. Launch MPLAB X IDE. Create, Build and Run Project 3 1. Refer to the MPLAB X IDE User's Guide or online help for instructions to install language tools, create or open a project, and configure project properties. 2. Check that the configuration bits in your code match the Recommended Settings below. 3. To execute your code in Debug mode, perform a debug run. To execute your code in Non-Debug (release) mode, perform a run. To hold a device in Reset after programming, use the Hold in Reset icon in the toolbar. Recommended Settings Setting Component • OSC bits set properly Oscillator • Running Power Supplied by target Disabled (device dependent) WDT Disabled Code-Protect Disabled Table Read Protect LVP Disabled Vdd > BOD Vdd min. BOD Disabled JTAG Must be connected AVdd and AVss Proper channel selected, if applicable PGCx/PGDx Programming Vdd voltage levels meet programming spec Note: See MPLAB PICkit 4 In-Circuit Debugger online help for more information. Reserved Resources For information on reserved resources used by the debugger, see the MPLAB PICkit 4 In-Circuit Debugger online help. Connect to Target Device 2 1. Connect the MPLAB PICkit 4 to the computer using the supplied Micro-B USB cable. 2. Attach the communications cable between the debugger and target board. 3. Connect external power to target board. Typical Debugger System – Device with On-Board Debug Circuitry Power T a r g e t D e v i c e Target Board Micro-B USB from computer Alternative Debugger System – ICE Device Header Device-ICE Standard Adapter if needed Power Transition Socket Target Board Micro-B USB from computer *External target board power supply to be provided by user. www.microchip.com/pickit4 

ADDITIONAL INFORMATION Circuitry and Connector Pinouts Correct Target VDD (tVDD) VDD XTAL VPP/MCLR 50 kΩ Typical n o i t a c i l p p A t e g r a T i e c v e D AVDD AVSS PGC PGD VSS Typical cable length is 6 inches Connect Pin 1 to Pin 1 2 1 5 4 3 6 7 8 Target Application PC Board Target Circuit Design Precautions MPLAB® PICkit 4 NMCLR Vdd Ground Typical 6-Pin ICSP Pinout Pin Target 1 2 3 4 5 6 7 8 MCLR/Vpp Vdd Target Vss (ground) PGD (ICSPDAT) PGD PGC (ICSPCLK) PGC Do Not Connect Do Not Connect Reserved for Future use Reserved for Future use Incorrect Target VDD (tVDD) V DD VPP/MCLR XTAL* n o i t a c i l p p A t e g r a T i e c v e D AVDD** AVSS** PGC PGD VSS V 2 1 5 4 3 6 7 8 • Do not use pull-ups on PGC/PGD: they will disrupt the voltage levels, since these lines have programmable pull-down resistors in the debugger. • Do not use capacitors on PGC/PGD: they will prevent fast transitions on data and clock lines during programming and debug communications. • Do not use capacitors on MCLR: they will prevent fast transitions of VPP. A simple pull-up resistor is generally sufficient. • Do not use diodes on PGC/PGD: they will prevent bidirectional communication between the debugger and the target device. Target Application PC Board • Do not exceed recommended cable lengths: Refer to the Hardware Specification of the MPLAB PICkit 4 online help or user's guide for cable lengths. Pinouts for Additional Interfaces MPLAB® PICkit 4 Debugging and Programming Pin # ICSP MIPS EJTAG Cortex® SWD 1 2 3 4 5 6 7 8 ** Target device must be running with an oscillator for the debugger to function as a debugger. *** If the device has AVdd and AVss lines, they must be connected for the debugger to operate. Vpp/NMCLR Vdd GND PGD PGC AUX TDI TMS VIO_REF GND TDO TCK NRESET TDI TMS VTG GND SWo SWCLK NRST SWDIO Data Stream DGI SPI DMCI/DGI U(S)ART/CDC VTG GND (SCK) TX RX MISO SCK MOSI SS The Microchip name and logo, the Microchip logo, MPLAB and PICkit are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2018, Microchip Technology Incorporated. All Rights Reserved. 2/18 DS50002721A www.microchip.com/pickit4