Table of Contents

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

1.

Introduction............................................................................................................................................. 4

1.1.

Features....................................................................................................................................... 4

1.2.

Kit Overview................................................................................................................................. 4

2.

Getting Started........................................................................................................................................ 5

2.1.

Quick Start....................................................................................................................................5

2.2.

Design Documentation and Relevant Links................................................................................. 5

3.

Curiosity Nano.........................................................................................................................................7

3.1.

On-Board Debugger Overview..................................................................................................... 7

3.1.1.

Debugger.......................................................................................................................7

3.1.2.

Virtual Serial Port (CDC)................................................................................................8

3.1.2.1.

Overview..................................................................................................... 8

3.1.2.2.

Operating System Support.......................................................................... 8

3.1.2.3.

Limitations................................................................................................... 9

3.1.2.4.

Signaling......................................................................................................9

3.1.2.5.

Advanced Use........................................................................................... 10

3.1.3.

Mass Storage Device...................................................................................................10

3.1.3.1.

Mass Storage Device Implementation.......................................................11

3.1.3.2.

Fuse Bytes.................................................................................................11

3.1.3.3.

Limitations of Drag-and-Drop Programming..............................................11

3.1.3.4.

Special Commands................................................................................... 12

3.1.4.

Data Gateway Interface (DGI)..................................................................................... 12

3.1.4.1.

Debug GPIO..............................................................................................12

3.1.4.2.

Timestamping............................................................................................13

3.2.

Curiosity Nano Standard Pinout................................................................................................. 13

3.3.

Power Supply............................................................................................................................. 14

3.3.1.

Target Regulator.......................................................................................................... 15

3.3.2.

External Supply............................................................................................................16

3.3.3.

VBUS Output Pin......................................................................................................... 16

3.3.4.

Power Supply Exceptions............................................................................................ 17

3.4.

Low Power Measurement...........................................................................................................18

3.5.

Programming External Microcontrollers..................................................................................... 19

3.5.1.

Supported Devices...................................................................................................... 19

3.5.2.

Software Configuration................................................................................................ 19

3.5.3.

Hardware Modifications............................................................................................... 20

3.5.4.

Connecting to External Microcontrollers...................................................................... 20

3.6.

Connecting External Debuggers................................................................................................ 21

4.

Hardware User Guide........................................................................................................................... 24

4.1.

Connectors................................................................................................................................. 24

4.1.1.

ATtiny1627 Curiosity Nano Pinout............................................................................... 24

4.1.2.

Using Pin Headers.......................................................................................................24

4.2.

Peripherals................................................................................................................................. 25

ATtiny1627

© 2020 Microchip Technology Inc.

User Guide

DS40002199A-page 2