Contents

Preface 1. Introduction 1.1. Features 1.2. Board Overview 2. Getting Started 2.1. Quick Start 2.1.1. Driver Installation 2.1.2. Kit Window 2.1.3. MPLAB X IDE Device Family Packs 2.1.4. Atmel Studio 7 Device Family Pack 2.2. Design Documentation and Relevant Links 3. Preprogrammed Application 4. Curiosity Nano 4.1. On-Board Debugger Overview 4.1.1. Debugger 4.1.2. Virtual Serial Port (CDC) 4.1.2.1. Overview 4.1.2.2. Operating System Support 4.1.2.3. Limitations 4.1.2.4. Signaling 4.1.2.5. Advanced Use 4.1.3. Mass Storage Device 4.1.3.1. Mass Storage Device Implementation 4.1.3.2. Limitations of Drag-and-Drop Programming 4.1.3.3. Special Commands 4.1.4. Data Gateway Interface (DGI) 4.1.4.1. Debug GPIO 4.1.4.2. Timestamping 4.2. Curiosity Nano Standard Pinout 4.3. Power Supply 4.3.1. Target Regulator 4.3.2. External Supply 4.3.3. VBUS Output Pin 4.3.4. Power Supply Exceptions 4.4. Low-Power Measurement 4.5. Programming External Microcontrollers 4.5.1. Supported Devices 4.5.2. Software Configuration 4.5.3. Hardware Modifications 4.5.4. Connecting to External Microcontrollers 4.6. Connecting External Debuggers 5. Hardware User Guide 5.1. Connectors 5.1.1. AVR128DB48 Curiosity Nano Pinout 5.1.2. Using Pin Headers 5.1.3. Multi-Voltage I/O 5.1.4. Operational Amplifiers 5.2. Peripherals 5.2.1. LED 5.2.2. Mechanical Switch 5.2.3. 32.768 kHz Crystal 5.2.4. 16.00 MHz Crystal 5.2.5. On-Board Debugger Implementation 5.2.5.1. On-Board Debugger Connections 6. Hardware Revision History and Known Issues 6.1. Identifying Product ID and Revision 6.2. Revision 3 6.3. Revision 2 7. Document Revision History 8. Appendix 8.1. Schematic 8.2. Assembly Drawing 8.3. Curiosity Nano Base for Click boards 8.4. Disconnecting the On-board Debugger 8.5. Getting Started with IAR The Microchip Website Product Change Notification Service Customer Support Microchip Devices Code Protection Feature Legal Notice Trademarks Quality Management System Worldwide Sales and Service