Contents

UM1900

2/19

DocID027905 Rev 3

Contents

1

Getting started................................................................................. 5

1.1

Hardware requirements..................................................................... 5

2

System requirements ...................................................................... 6

3

Hardware description...................................................................... 7

3.1

Nucleo 144 support ........................................................................... 7

3.2

USB connector and power source..................................................... 8

3.3

Audio acquisition strategy ................................................................. 8

3.3.1

DFSDM microphone acquisition ......................................................... 8

3.3.2

I²S and SPI microphone acquisition ................................................... 8

3.4

Solder bridge configurations.............................................................. 9

3.4.1

Solder bridge roles ............................................................................. 9

3.4.2

Sample use cases ............................................................................ 10

4

Connectors .................................................................................... 14

5

Board schematics.......................................................................... 15

6

Layout ............................................................................................ 17

7

Revision history ............................................................................ 18