DM320115 Microchip

ATmega4809 Curiosity Nano ATmega4809 Curiosity Nano Hardware User Guide Preface The ATmega4809 Curiosity Nano evaluation kit is a hardware platform to evaluate the ATmega4809 microcontroller. Supported by the Atmel Studio/Microchip MPLAB X integrated development platform, the kit provides easy access to the features of the ATmega4809 and explains how to integrate the device into a custom design. The Curiosity Nano series of evaluation kits include an onboard debugger, and no external tools are necessary to program the ATmega4809. User Guide DS50002804A-page 1 2018 Microchip Technology Inc. ATmega4809 Curiosity Nano Table of Contents Preface............................................................................................................................ 1 1. Introduction................................................................................................................4 1.1. Features....................................................................................................................................... 4 1.2. Kit Overview................................................................................................................................. 4 2. Getting Started.......................................................................................................... 5 2.1. Curiosity Nano Quick Start...........................................................................................................5 2.2. Design Documentation and Relevant Links................................................................................. 5 3. Curiosity Nano........................................................................................................... 6 3.1. Onboard Debugger.......................................................................................................................6 3.1.1. Virtual COM Port............................................................................................................6 3.1.2. Mass Storage Disk.........................................................................................................8 3.2. Curiosity Nano Standard Pinout...................................................................................................9 3.3. Power Supply............................................................................................................................. 10 3.3.1. Target Regulator.......................................................................................................... 10 3.3.2. External Supply............................................................................................................11 3.4. Disconnecting the Onboard Debugger....................................................................................... 11 3.5. Current Measurement................................................................................................................ 13 4. Hardware User Guide..............................................................................................14 4.1. Connectors.................................................................................................................................14 4.1.1. ATmega4809 Curiosity Nano Pinout............................................................................14 4.2. Peripherals................................................................................................................................. 15 4.2.1. LED..............................................................................................................................15 4.2.2. Mechanical Switch.......................................................................................................15 4.2.3. Crystal..........................................................................................................................15 4.3. Onboard Debugger Implementation...........................................................................................16 4.3.1. Onboard Debugger Connections.................................................................................16 5. Hardware Revision History...................................................................................... 17 5.1. Identifying Product ID and Revision........................................................................................... 17 5.2. Revision 5...................................................................................................................................17 6. Document Revision History..................................................................................... 18 7. Appendix..................................................................................................................19 7.1. Schematic...................................................................................................................................19 7.2. Connecting External Debuggers................................................................................................ 21 7.3. Getting Started with IAR.............................................................................................................22 The Microchip Web Site................................................................................................ 25 Customer Change Notification Service..........................................................................25 DS50002804A-page 2 User Guide 2018 Microchip Technology Inc.