VIA Technologies VAB-820 Development Manual

Brand: VIA Technologies

Model: VAB-820

Type: Development Manual

This manual is also suitable for

AMOS-820 SKU

VIA Technologies VAB-820 is a powerful and versatile embedded system solution designed for a wide range of industrial applications. It features the i.MX6 Quad processor, providing high-performance computing capabilities for demanding tasks. The VAB-820 comes with a rich set of I/O interfaces, including Gigabit Ethernet, USB 3.0, and HDMI, enabling flexible connectivity options. Its compact size and rugged design make it suitable for space-constrained environments.

1.05-10022015-163600

DEVELOPMENT GUIDE

AMOS-820

VAB-820

HMI Solution Pack v2.0

No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language,

in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise without the prior written

permission of VIA Technologies, Incorporated.

Trademarks

All brands, product names, company names, trademarks and service marks are the property of their respective holders.

Disclaimer

VIA Technologies makes no warranties, implied or otherwise, in regard to this document and to the products described in this

document. The information provided in this document is believed to be accurate and reliable as of the publication date of this

document. However, VIA Technologies assumes no responsibility for the use or misuse of the information in this document and for

any patent infringements that may arise from the use of this document. The information and product specifications within this

document are subject to change at any time, without notice and without obligation to notify any person of such change.

VIA Technologies, Inc. reserves the right the make changes to the products described in this manual at any time without prior

notice.

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iii

Revision History

Version

VersionVersion

Version

Date

DateDate

Date

Remarks

RemarksRemarks

Remarks

1.00 2015/1/30 Initial released.

1.01 2015/2/16 Changed the eMMC's index from 1 to 0, sdcard's index from 0 to 1.

Added notice to unmount partitions before flashing images to

SD/eMMC.

1.02 2015/2/17

Changed u-boot.bin to u-boot.imx.

Used EVK to flash images to SD/eMMC.

1.03 2015/8/12 Added section 4.2.2 and 4.2.3

1.04 2015/8/20 Corrected u-boot to U-boot

1.05 2015/9/2 Changed the way of U-boot booting kernel

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Table of Contents

1.1.

Introduction

IntroductionIntroduction

Introduction ................................

................................................................

..........................................

....................

.......... 1

1.1.

Overview........................................................................................................ 1

1.2.

Package Content ........................................................................................... 1

1.2.1.

BSP Folder Contents............................................................................... 1

1.2.2.

EVK Folder Contents .............................................................................. 1

2.2.

Setup Building Environment

Setup Building EnvironmentSetup Building Environment

Setup Building Environment ................................

................................................................

...............................................

..............................

............... 2

2.1.

Configure Ubuntu......................................................................................... 2

2.1.1.

Install the Host Packages ...................................................................... 2

3.3.

Image Build

Image BuildImage Build

Image Build ................................

................................................................

...........................................

......................

........... 3

3.1

Extract VAB-820 BSP......................................................................................... 3

3.2

Machine configurations .................................................................................... 3

3.3

Build an image.................................................................................................... 3

4.4.

Image Deployment

Image DeploymentImage Deployment

Image Deployment ................................

................................................................

..............................................................

............................................................

.............................. 4

4.1

Making a SD card image................................................................................... 4

4.1.1

Setup U-boot parameters for Micro SD card ................................... 4

4.2

Making a Linux System eMMC ........................................................................ 6

4.2.1

Requirements ........................................................................................... 6

4.2.2

Procedure.................................................................................................. 6

4.2.3

Run “putty” or “Terminal” ..................................................................... 7

4.2.3.1

Run “putty” on host PC................................................................ 7

4.2.3.2

Run “Terminal” on VAB-820....................................................... 7

4.2.4

Burn u-boot.imx into SPI ROM............................................................. 8

4.2.5

Copy images to eMMC .......................................................................... 8

4.2.6

Setup U-boot parameters for SPI ROM.............................................. 8

Appendix A.

Appendix A.Appendix A.

Appendix A. U

U U

U-

-boot parameters for display

boot parameters for displayboot parameters for display

boot parameters for display................................

................................................................

..........................................................

....................................................

.......................... 12

1212

Appendix B.

Appendix B.Appendix B.

Appendix B. Installing the AXIS USB LAN module AXI88772

Installing the AXIS USB LAN module AXI88772 Installing the AXIS USB LAN module AXI88772

Installing the AXIS USB LAN module AXI88772 .............................

..........................................................

............................. 14

1414

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Lists of Figures

Figure 1. AMOS-820 Solution Pack content .............................................................. 1

Figure 2: J11 boot select jumper diagram.................................................................. 4

Figure 3. U-boot parameter ........................................................................................... 5

Figure 4. Terminal on Desktop...................................................................................... 7

Figure 5. J11 boot select jumper diagram.................................................................. 9

Figure 6. U-boot parameter ......................................................................................... 10

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Lists of Tables

Table 1. Images generated through Bitbake .............................................................. 3

Table 2. J11 boot select jumper setting ..................................................................... 5

Table 3. J11 boot select jumper setting ..................................................................... 9

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1.1.

1. Introduction

IntroductionIntroduction

Introduction

The purpose of this document is to provide a practical introduction on

developing software for the AMOS-820 (Bare board: VAB-820 Freescale i.MX6

Quad) on a Yocto Project development host.

1.1. Overview

AMOS-820 HMI SP v2.0 is developed based on fsl-yocto-3.10.17_1.0.0 (Yocto

1.5 Dora) and enables hardware features defined in VAB-820.

There are four major boot components for Linux, the “

““

“u

-boot

bootboot

boot”

””

”,

, ,

, “

““

“*.dts

*.dts*.dts

*.dts”

””

”,

, ,

“

““

“uImage

uImageuImage

uImage”

””

” and “

““

“Root File System

Root File SystemRoot File System

Root File System”

””

”. The "u

"u"u

"u-

-boot"

boot"boot"

boot" is for initial peripheral hardware

parameter. The “

““

“*.dts

*.dts*.dts

*.dts”

””

” is the device tree. The "u

"u"u

"uImage"

Image"Image"

Image" is the Linux kernel

image, and the "

"Root

Root Root

Root File System"

File System"File System"

File System" is for Linux O.S.

1.2. Package Content

There are three folders in AMOS-820 Solution Pack.

Figure

Figure Figure

Figure 1

. .

. AMOS

AMOSAMOS

AMOS-

-820

820820

820

Solution P

Solution PSolution P

Solution Pack content

ack contentack content

ack content

1.2.1. BSP Folder Contents

• vab820

vab820vab820

vab820-

-ycoto

ycotoycoto

ycoto-

-bsp

bspbsp

bsp-

-v2.x

v2.xv2.x

v2.x.x.tar.bz2:

.x.tar.bz2:.x.tar.bz2:

.x.tar.bz2: A complete and static Yocto BSP

including VAB-820 meta-files, and all required packages have been

downloaded.

1.2.2. EVK Folder Contents

• via

viavia

via-

-image

imageimage

image-

-x11

x11x11

x11-

-imx6qvab820.sdcard:

imx6qvab820.sdcard:imx6qvab820.sdcard:

imx6qvab820.sdcard: Image for evaluating the VAB-820 with

OpenEmbedded file system.

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2.2.

2. Setup Building

Setup BuildingSetup Building

Setup Building Environment

Environment Environment

Environment

This chapter will guide you through setting up your developing environment.

All the instructions in this guide are for Ubuntu 12.04 (32 Bit or 64 Bit). Please

have the Ubuntu installed in your PC/NB in advance.

To get the Yocto Project expected behavior in a Linux Host Machine, the

packages and utilities described below must be installed. An important

consideration is hard disk space required in the host machine. The

recommended space is 120 GB at least.

2.1. Configure Ubuntu

2.1.1. Install the Host Packages

The following packages are installed to support Yocto development

environment and presented in a bash script that can be cut and pasted into

your environment for execution:

#/bin/bash

# Install LTIB dependant packages

sudo apt-get install wget git-core unzip texinfo libsdl1.2-dev gawk

diffstat build-essential chrpath

sudo apt-get install sed cvs subversion coreutils texi2html docbook-

utils python-pysqlite2 help2man make gcc g++ desktop-file-utils

libgl1-mesa-dev libglu1-mesa-dev mercurial autoconf automake groff

curl lzop asciidoc xterm

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3.3.

Image Build

mage Buildmage Build

mage Build

3.1 Extract VAB-820 BSP

Do not use the root mode to unpack the BSP package on the terminal. It may

cause a failure to build due to the file permission has been affected.

$ tar xvf yocto-vab820-bsp-v2.x.x.tar.bz2

3.2 Machine configurations

The via-setup-release.sh script integrates the VIA release layer into the Yocto

Project build by inserting the layer into the <build dir>/conf/bblayers.conf file.

This setup script has the following optional parameters:

• -b: sets the build directory.

-b <build dir >

$ cd via-release-bsp

via-release-bsp$ MACHINE=imx6qvab820 source via-setup-release.sh -b

build-vab820

3.3 Build an image

VAB-820 BSP supports 'via-image-x11' image name.

via-release-bsp/build-vab820$ bitbake via-image-x11

There are u-boot.imx, uImage, *.dts and root file system generated. The

location for this example can be found in the directory “via

“via“via

“via-

-release

releaserelease

release-

-bsp/build

bsp/buildbsp/build

bsp/build-

vab820

vab820vab820

vab820/

/tmp/deploy/images/imx6qvab820”

tmp/deploy/images/imx6qvab820”tmp/deploy/images/imx6qvab820”

tmp/deploy/images/imx6qvab820” as shown in Table 1.

Binary

BinaryBinary

Binary

Description

DescriptionDescription

Description

u-boot.imx U-Boot boot loader

uImage Kernel

uImage-imx6q-vab820.dtb

uImage-imx6dl-vab820.dtb

Device tree

via-image-x11-imx6qvab820.sdcard An SD card image

Table

Table Table

Table 1

1. Images generated through

. Images generated through . Images generated through

. Images generated through Bitbake

BitbakeBitbake

Bitbake

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4.4.

Imag

ImagImag

Image Deployment

e Deploymente Deployment

e Deployment

VAB-820 supports two booting ways. One is from Micro SD storage card and

the other is SPI ROM. This section will guide you through making the Linux

system boot media for VAB-820.

You can use the image that you built from BSP, the previous Section 3.3

mentioned where it locates, or use the demo image in EVK/

EVK/ EVK/

EVK/ folder of AMOS-

820 HMI Solution Pack.

4.1 Making a SD card image

The Micro SD card image provides the full system to boot with U-Boot and

kernel.

One thing should be taken care before making Micro SD card image:

If there is any mounted partition in Micro SD card, it should be unmounted

first. Then, to flash a SD card image, run the following command:

$ umount /dev/sd<partition>

$ sudo dd if=via-image-x11-imx6qvab820.sdcard of=/dev/sd<partition>

bs=1M && sync

4.1.1 Setup U-boot parameters for Micro SD card

Setup the U-boot parameter at the first time we boot from Micro SD card. Set

the J11 jumper setting (refer to Table 2) to make it bootable from Micro SD.

Figure

Figure Figure

Figure 2

2: J11 boot select jumper diagram

: J11 boot select jumper diagram: J11 boot select jumper diagram

: J11 boot select jumper diagram

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Setting

SettingSetting

Setting

Pin 1

Pin 1 Pin 1

Pin 1 -

- 2

2 2

Pin 2

Pin 2 Pin 2

Pin 2 -

- 3

3 3

Micros SD (default) Short Open

SPI Open Short

Table

Table Table

Table 2

2. J

. J. J

. J11

1111

boot select

boot select boot select

boot select jumper setting

jumper settingjumper setting

jumper setting

Connect the VAB-820 and host PC through J5 (COM2) of VAB-820. Run

“

““

“putty

puttyputty

putty”

””

” on host PC to receive the booting message. Power on the VAB-820 and

press any key to stop the booting process as shown in Figure 3.

Figure

Figure Figure

Figure 3

. .

. U

U-

-boot parameter

boot parameterboot parameter

boot parameter

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To check the parameter in U-boot:

VAB-820 U-Boot > pri

bootcmd=run bootcmd_auto

...

The default parameter shows that it loads kernel by detecting the Micro SD

card. If the Micro SD card has been inserted, it loads kernel from Micro SD

card. If not, it loads kernel from eMMC.

You have to set the parameters like the example below. Then the VAB-820

will load kernel from Micro SD card.

VAB-820 U-Boot > setenv bootcmd 'run bootcmd_sd'

VAB-820 U-Boot > saveenv

VAB-820 U-Boot > boot

Or you have to set the parameters like the example below. Then the VAB-820

will load kernel from eMMC.

VAB-820 U-Boot > setenv bootcmd 'run bootcmd_mmc'

VAB-820 U-Boot > saveenv

VAB-820 U-Boot > boot

4.2 Making a Linux System eMMC

VAB-820 does not support booting from eMMC by default. If you want to

make a Linux system on eMMC, there is only one choice to put U-boot on SPI

ROM, and put kernel and rootfs on eMMC.

4.2.1 Requirements

• A Linux System Micro SD storage card made in Section 4.1.

• A mass storage includes: “

““

“u

-boot.imx

boot.imxboot.imx

boot.imx”

””

”

and “

““

“via

viavia

via-

-image

imageimage

image-

-x11

x11x11

x11-

imx6qvab820.sdcard

imx6qvab820.sdcardimx6qvab820.sdcard

imx6qvab820.sdcard”

””

”. You can put those files in a USB pen or SD

storage card.

4.2.2 Procedure

User must first boot from Micro SD card on VAB-820 and follow the steps to

make Linux system on eMMC.

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Step 1

Step 1Step 1

Step 1

Run “putty” on host PC or “Terminal” on VAB-820.

Step 2

Step 2Step 2

Step 2

Burn u-boot.imx into SPI ROM.

Step 3

Step 3Step 3

Step 3

Copy images to eMMC.

Step 4

Step 4Step 4

Step 4

Setup U-boot parameters for SPI ROM.

4.2.3 Run “putty” or “Terminal”

User can select to run “putty” on host PC or “Terminal” on VAB-820.

4.2.3.1

4.2.3.14.2.3.1

4.2.3.1

Run “putty” on host PC

Run “putty” on host PCRun “putty” on host PC

Run “putty” on host PC

Run “putty” on host PC to receive the booting message.

...

Poky (Yocto Project Reference Distro) 1.5.1 imx6qvab820 /dev/ttymxc1

imx6qvab820 login:root

4.2.3.2

4.2.3.24.2.3.2

4.2.3.2 Run “Terminal” on VAB

Run “Terminal” on VABRun “Terminal” on VAB

Run “Terminal” on VAB-

-820

820820

820

Boot VAB-820 and wait into Desktop.

Run “

““

“T

Terminal”

erminal”erminal”

erminal”.

Figure

Figure Figure

Figure 4

Terminal on Desktop

Terminal on DesktopTerminal on Desktop

Terminal on Desktop

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4.2.4 Burn u-boot.imx into SPI ROM

Run “ls /dev/mtdblock*

/mtdblock*/mtdblock*

/mtdblock*” to check the SPI ROM device, which is identified as

“

““

“/dev/mtdblock0

/dev/mtdblock0/dev/mtdblock0

/dev/mtdblock0”

””

”.

$ ls /dev/mtdblock*

/dev/mtdblock0

Run the following command to burn u-boot.imx into SPI ROM.

$ sudo dd if=u-boot.imx of=/dev/mtdblock0 bs=512 seek=2

The previous U-boot parameters will be stored in SPI ROM. If you want to

clear the U-boot parameters to default, use the following command:

$ sudo dd if=/dev/zero of=/dev/mtdblock0 bs=512 seek=1536 count=16

4.2.5 Copy images to eMMC

One thing should be taken care before copying images to eMMC: if there is

any mounted partition in eMMC, it should be unmounted first.

Then, run the following command to burn the image into eMMC.

$ sudo dd if=via-image-x11-imx6qvab820.sdcard of=/dev/mmcblk0 bs=1M

4.2.6 Setup U-boot parameters for SPI ROM

Setup the U-boot parameter at the first time we boot from SPI ROM. Set the

J11 jumper setting (refer to Table 3) to make it bootable from SPI ROM.

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Figure

Figure Figure

Figure 5

5. J11 boot select jumper diagram

. J11 boot select jumper diagram. J11 boot select jumper diagram

. J11 boot select jumper diagram

Setting

SettingSetting

Setting

Pin 1

Pin 1 Pin 1

Pin 1 -

- 2

2 2

Pin 2

Pin 2 Pin 2

Pin 2 -

- 3

3 3

Micros SD (default) Short Open

SPI Open Short

Table

Table Table

Table 3

3. J

. J. J

. J11

1111

boot select

boot select boot select

boot select jumper setting

jumper settingjumper setting

jumper setting

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Connect the VAB-820 and host PC through J5 (COM2) of VAB-820. Run

“putty” on host PC to receive the booting message. Power on the VAB-820

and press any key to stop the booting process as shown in Figure 6.

Figure

Figure Figure

Figure 6

U-

-boot parameter

boot parameterboot parameter

boot parameter

To check the parameter in U-boot:

VAB-820 U-Boot > pri

bootcmd=run bootcmd_auto

...

The default parameter shows that it loads kernel by detecting the Micro SD

card. If the Micro SD card has been inserted, it loads kernel from Micro SD

card. If not, it loads kernel from eMMC.

You have to set the parameters like the example below. Then the VAB-820

will load kernel from Micro SD card.

VAB-820 U-Boot > setenv bootcmd 'run bootcmd_sd'

VAB-820 U-Boot > saveenv

VAB-820 U-Boot > boot

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Or you have to set the parameters like the example below. Then the VAB-820

will load kernel from eMMC.

VAB-820 U-Boot > setenv bootcmd 'run bootcmd_mmc'

VAB-820 U-Boot > saveenv

VAB-820 U-Boot > boot

Note:

Note: Note:

Note:

User can type “destroyenv” in U-boot to restore the default parameter. For example:

VAB-820 U-Boot > destroyenv

VAB-820 U-Boot > reset

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Appendix A.

Appendix A.Appendix A.

Appendix A. U

U-

-boot parameters

boot parametersboot parameters

boot parameters

for display

for displayfor display

for display

Setting the display devices.

[HDMI]

[HDMI][HDMI]

[HDMI]

User can check HDMI parameters in U-boot by typing “pri”:

hdmi=video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24

...

o_hdmi=setenv output_display ${hdmi}

To set the HDMI as display output.

run o_hdmi

[LVDS]

[LVDS][LVDS]

[LVDS]

AMOS-820 supports three LVDS types by default since v2.0.0.

• AUO 22” G220SVN01.0 (1680 x 1050)

• AUO 10.4” G104XVN01.0 (1024 x 768)

• AUO 7" G070VW01 V0 (800 x 480)

User can check LVDS parameters in U-boot by typing “pri”:

lvds_auo_g220=video=mxcfb0:dev=ldb,LDB-WSXGA+,if=RGB24 ldb=spl0

lvds_auo_g104=video=mxcfb0:dev=ldb,LDB-XGA,if=RGB24 ldb=sin0

lvds_auo_g070=video=mxcfb0:dev=ldb,480C60,if=RGB666 ldb=sep0

lvds=video=mxcfb0:dev=ldb,LDB-XGA,if=RGB24 ldb=sin0

Check the LVDS power selection setting.

J3J3

: LVDS_power select of AUO 22

: LVDS_power select of AUO 22: LVDS_power select of AUO 22

: LVDS_power select of AUO 22”

””

”

G220SVN01.0

G220SVN01.0G220SVN01.0

G220SVN01.0

IVDD

IVDDIVDD

IVDD

PVDD

PVDDPVDD

PVDD

*1-3 +12V 2-4 +3.3V

3-5 +5V *4-6 +5V

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J3 : LVDS_power select of AUO 10.4

J3 : LVDS_power select of AUO 10.4J3 : LVDS_power select of AUO 10.4

J3 : LVDS_power select of AUO 10.4”

””

”

G104XVN01.0

G104XVN01.0G104XVN01.0

G104XVN01.0

IVDD

IVDDIVDD

IVDD

PVDD

PVDDPVDD

PVDD

*1-3 +12V *2-4 +3.3V

3-5 +5V 4-6 +5V

J3 : LVDS_power select of AUO 7

J3 : LVDS_power select of AUO 7J3 : LVDS_power select of AUO 7

J3 : LVDS_power select of AUO 7”

””

”

G070VW01 V0

G070VW01 V0G070VW01 V0

G070VW01 V0

IVDD

IVDDIVDD

IVDD

PVDD

PVDDPVDD

PVDD

*1-3 +12V *2-4 +3.3V

3-5 +5V 4-6 +5V

User can check LVDS setting parameters in U-boot by typing “pri”:

o_lvdsg220=setenv output_display ${lvds_auo_g220}

o_lvdsg104=setenv output_display ${lvds_auo_g104}

o_lvdsg070=setenv output_display ${lvds_auo_g070}

User can set the LVDS type in U-boot, the LVDS for this example is AUO 10.4”

G104XVN01.0:

run o_lvdsg104

saveenv

AMOS

AMOSAMOS

AMOS-

-8

0 VAB

VAB VAB

VAB-

-820 HMI Solution Pack

820 HMI Solution Pack820 HMI Solution Pack

820 HMI Solution Pack V

V V

V2.0

2.02.0

2.0 Development Guide

Development Guide Development Guide

Development Guide

Appendix B.

Appendix B.Appendix B.

Appendix B. Installing the AXIS

Installing the AXIS Installing the AXIS

Installing the AXIS

USB LAN module AXI88772

USB LAN module AXI88772USB LAN module AXI88772

USB LAN module AXI88772

This section illustrates how to setup AXIS USB LAN module AXI88772 on

VAB-820.

First, a driver is required. You can get a pre-build driver, named asix.ko at

EVK\asix folder of BSP, and place it into VAB-820 filesystem. For example:

root@imx6qvab820:~# ls

asix.ko

After that, load the driver by insmod command.

root@imx6qvab820:~# insmod asix.ko

usbcore: registered new interface driver asix

If the driver has been loaded properly with module plugged in, dmesg shows

as follow:

root@imx6qvab820:~# dmesg

…

ASIX USB Ethernet Adapter:v4.13.0 14:38:52 Mar 2 2015

http://www.asix.com.tw

eth%d: status ep1in, 8 bytes period 11

eth1: register 'asix' at usb-ci_hdrc.1-1.2, ASIX AX88772B USB 2.0

Ethernet, 00:50:b6:12:e9:9f

eth1: rxqlen 0 --> 5

eth1: ax88772b - Link status is: 0

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VIA Technologies VAB-820 Development Manual

Brand: VIA Technologies

Model: VAB-820

Type: Development Manual

This manual is also suitable for

AMOS-820 SKU

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VIA Technologies VAB-820 Development Manual

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VIA Technologies VAB-820 Development Manual

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