AVR16EB32 Curiosity Nano

 User Guide

© 2024 Microchip Technology Inc. and its subsidiaries

DS50003605B - 2

Table of Contents

Preface................................................................................................................................................................................... 1

1. Features and Pinout......................................................................................................................................................4

1.1. AVR16EB32 Key Features.................................................................................................................................. 4

1.2. Board Features...................................................................................................................................................4

1.3. Board Overview..................................................................................................................................................5

1.4. Block Diagram.................................................................................................................................................... 5

1.5. Pinout.................................................................................................................................................................. 5

2. Getting Started...............................................................................................................................................................7

2.1. Getting Started Now with AVR®........................................................................................................................ 7

2.2. How the Curiosity Nano Fits Into the MPLAB Tools Ecosystem................................................................... 7

2.3. MPLAB Data Visualizer Support for Curiosity Nano...................................................................................... 9

2.4. Using Pin-Headers........................................................................................................................................... 10

3. On-Board Debugger....................................................................................................................................................12

3.1. On-Board Debugger Overview....................................................................................................................... 12

3.2. On-Board Debugger Connections..................................................................................................................12

3.3. Debugger USB Enumeration.......................................................................................................................... 13

3.4. Virtual Serial Port (CDC).................................................................................................................................. 13

3.5. Mass Storage Device........................................................................................................................................17

3.6. Data Gateway Interface (DGI).........................................................................................................................18

3.7. Device Configuration Protection....................................................................................................................19

4. Hardware Implementation.........................................................................................................................................21

4.1. Crystal................................................................................................................................................................21

4.2. LED.....................................................................................................................................................................22

4.3. Mechanical Switch........................................................................................................................................... 22

4.4. Power Supply....................................................................................................................................................23

5. Revision History...........................................................................................................................................................29

5.1. Hardware Revision History and Known Issues.............................................................................................29

5.2. Document Revision History............................................................................................................................ 30

6. Appendix...................................................................................................................................................................... 32

6.1. Schematic..........................................................................................................................................................33

6.2. Assembly Drawing........................................................................................................................................... 35

6.3. Curiosity Nano Base for Click boards

™.......................................................................................................... 36

6.4. Programming External Microcontrollers...................................................................................................... 37

6.5. Connecting External Debuggers.................................................................................................................... 38

6.6. Disconnecting the On-Board Debugger........................................................................................................40

6.7. Getting Started with IAR

™................................................................................................................................ 41

Microchip Information....................................................................................................................................................... 43

The Microchip Website............................................................................................................................................... 43

Product Change Notification Service........................................................................................................................ 43

Customer Support.......................................................................................................................................................43

Microchip Devices Code Protection Feature............................................................................................................43