Microsemi ZLK38AVS Manuel utilisateur

ZLK38AVS User Guide

Microsemi AcuEdge™ Development Kit for Amazon

AVS

ZLK38AVS User Guide Revision 3.0 i

Contents

1 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Revision 3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Revision 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Revision 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1 Other References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3 ZLK38AVS Development Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 Hardware Provided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.2 Hardware Not Provided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.3 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 Hardware Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.1 Pillar Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.2 Raspberry Pi Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 ZLK38AVS Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.1 Creating Raspbian Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.2 Raspberry Pi Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.2.1 Downloading ZLK38AVS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2.2 Installing ZLK38AVS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6 Amazon Developer Account Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7 Demonstrating the ZLK380AVS (software) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.1 Starting AVS Software Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.2 Installation Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7.2.1 Credential Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7.2.2 Token Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

8 Uninstalling the ZLK38AVS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8.1 Reconfiguring the ZLK38AVS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ZLK38AVS User Guide Revision 3.0 ii

Figures

Figure 1 ZLK38AVS Development Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 2 Raspberry Pi and ZLE38AVS Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 3 Mounted Raspberry Pi with standoffs attached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4 ZLE38AVS board with standoffs attached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 5 ZLE38AVS board attached to mounted Raspberry Pi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 6 Pillar with speaker attached. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 7 Speaker plugged in to ZLE38AVS board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 8 Raspberry Pi connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 9 Raspbian download page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 10 Etcher Disk Imager example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 11 Downloading ZLK38AVS software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 12 Sensory License Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 13 Amazon Developer Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 14 Chromium on Raspberry Pi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 15 Sample App Autoboot Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 16 Completed installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 17 Alexa Voice Service website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 18 Amazon sign-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 19 Apps distribution agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 20 Get Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 21 Alexa Voice Service Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 22 New Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 23 Amazon Developer Account URLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 24 Alexa Start Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 25 Amazon URL Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 26 Amazon Identifiers Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Revision History

ZLK38AVS User Guide Revision 3.0 1

1 Revision History

The revision history describes the changes that were implemented in the document. The changes are

listed by revision, starting with the most current publication.

1.1 Revision 3.0

Revision 3.0 was published in November 2017. The following is a summary of changes made in this

revision.

• Software installation steps were updated. For more information, see ZLK38AVS Software

Installation, page 8.

• Developer account creation was updated. For more information, see Amazon Developer Account

Creation, page 11.

• A new Alexa app was added. For more information, see Demonstrating the ZLK380AVS (software),

page 15.

• Installation troubleshooting details were added. For more information, see Installation

Troubleshooting, page 16.

• Steps to reconfigure the software were added. For more information, see Reconfiguring the

ZLK38AVS Software, page 17.

1.2 Revision 2.0

Revision 2.0 was published in May 2017. It was the first publication of this document.

1.3 Revision 1.0

Revision 1.0 was published in April 2017. It was a preliminary publication of this document.

Overview

ZLK38AVS User Guide Revision 3.0 2

2 Overview

Microsemi AcuEdge™ Development Kit for Amazon AVS is engineered to help you evaluate voice-

enabled front-end audio systems for your Alexa-enabled products. This kit features Microsemi's ZL38063

voice processor powered by Microsemi's proprietary AcuEdge™ technology for front-end audio clean-up

and Sensory's TrulyHandsFree™ "Alexa" wake-word engine. Two separate microphone configurations

allow you to test applications with 180° or 360°.

This document walks you through all the steps of building an Alexa-powered prototype using Microsemi's

ZLK38AVS development kit and a Raspberry Pi. It takes you from setting up the ZLK38AVS kit,

integrating it with an 'Alexa' wake word engine and connecting to the Alexa Voice Services (AVS) cloud.

Once completed you will have an Alexa-enabled application that will function like an Amazon Echo.

2.1 Other References

The following are documents you may want to refer to when using this guide. These documents can be

found on the Microsemi Audio Processing GitHub for the ZLK38AVS:

• ZLK38AVS Quick Start Guide

• ZLK38AVS Product Brief

• ZLE38AVS Evaluation Board Hardware Guide

• ZL38063 Product Brief

• ZLS38100 Microsemi VProc SDK Documentation

ZLK38AVS Development Kit Contents

ZLK38AVS User Guide Revision 3.0 3

3 ZLK38AVS Development Kit Contents

The ZLK38AVS development kit is shipped with some of the required hardware while other hardware

must be provided by the user. All the software for the ZLK38AVS development kit is provided through

GitHub.

3.1 Hardware Provided

The following hardware is provided in the ZLK38AVS Development Kit:

1. ZLE38AVS evaluation board

2. Pillar (speaker and Raspberry Pi plastic stand)

3. Plastic standoffs and screws

Figure 1 • ZLK38AVS Development Kit Contents

Figure 2 • Raspberry Pi and ZLE38AVS Evaluation Board

3.2 Hardware Not Provided

The following hardware is needed to run the ZLK38AVS demonstration and needs to be provided by the

user of the development kit:

ZLK38AVS Development Kit Contents

ZLK38AVS User Guide Revision 3.0 4

1. Raspberry Pi 3

2. 2 A or greater power supply for the Raspberry Pi 3 (power can be provided through a USB3/Micro-

USB connection from a PC).

3. Micro SD card (8 GB or higher; a card with a 90 MB/s or greater read speed is recommended)

4. External Speaker with a 3.5 mm jack (the example in Figure 6, page 6 is the JBL Clip speaker,

available from Amazon at https://www.amazon.com/gp/product/B00KH636V2/)

5. USB keyboard and mouse

6. HDMI monitor and cable

7. Ethernet Cable (or WiFi) for Internet connection

Note: The monitor, keyboard, and mouse connections are optional if using VNC (or similar) to connect to the

Raspberry Pi.

3.3 Software

The following software for the ZLK38AVS Development Kit is provided through GitHub:

1. A make file which installs all the required software

2. The latest Timberwolf device series Voice Processing Software Development Kit (SDK), which is a

collection of software, tools, code examples, and documents for rapid development with the

Microsemi's Timberwolf device series.

3. A Firmware Loader Application that makes use of the Voice Processing SDK functions to load the

firmware into the ZL38063 device.

Note: During the ZLK38AVS installation, the software will download the “avs-device-sdk” from Amazon and the

“alexa-rpi” model from Sensory.

Hardware Assembly

ZLK38AVS User Guide Revision 3.0 5

4 Hardware Assembly

To assemble the ZLK38AVS kit the following instructions should be followed:

4.1 Pillar Assembly

1. Screw in the Raspberry Pi onto the front side of the Raspberry Pi mounting ring and add the 2nd set

of standoffs

Figure 3 • Mounted Raspberry Pi with standoffs attached

2. Add the standoffs to the ZLE38AVS evaluation board

Figure 4 • ZLE38AVS board with standoffs attached

3. Plug in the ZLE38AVS evaluation board and add the remaining screws

Figure 5 • ZLE38AVS board attached to mounted Raspberry Pi

4. Place the speaker facing downwards into the lower plastics

Hardware Assembly

ZLK38AVS User Guide Revision 3.0 6

Figure 6 • Pillar with speaker attached

5. Plug in the speaker to the ZLE38AVS evaluation board

Figure 7 • Speaker plugged in to ZLE38AVS board

4.2 Raspberry Pi Connections

1. Connect an HDMI monitor to the Raspberry Pi

2. Connect a USB mouse and keyboard to USB ports of the Raspberry Pi

3. Connect the Raspberry Pi to your network with an Ethernet cable or Wi-Fi

4. Flash image onto the SD card using the Wind32Diskimager application (see Creating Raspbian

Image, page 8)

5. Insert the SD card into the SD card slot of the Raspberry Pi

6. Connect a compatible 5V power supply to the Raspberry Pi’s Micro-USB port in order to power up

the Raspberry Pi

Note: The monitor, keyboard, and mouse connections are optional if using VNC (or similar) to connect to the

Raspberry Pi

Hardware Assembly

ZLK38AVS User Guide Revision 3.0 7

Figure 8 • Raspberry Pi connections

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