VIA Technologies ARTiGO A950 User manual

QUICK START GUIDE
VIA ARTiGO A950
Yocto 3.1 EVK
1.00-03022023

Copyright
Copyright © 2023 VIA Technologies Incorporated. All rights reserved.
No part of this document may be reproduced, transmied, transcribed, stored in a retrieval system, or translated into any language, in any
form or by any means, electronic, mechanical, magnec, opcal, chemical, manual or otherwise without the prior wrien permission of
VIA Technologies, Incorporated.
Trademarks
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Disclaimer
VIA Technologies makes no warranes, implied or otherwise, in regard to this document and to the products described in this document.
The informaon provided in this document is believed to be accurate and reliable as of the publicaon date of this document. However,
VIA Technologies assumes no responsibility for the use or misuse of the informaon (including use or connecon of extra device/
equipment/add-on card) in this document and for any patent infringements that may arise from the use of this document. The informaon
and product specicaons within this document are subject to change at any me, without noce and without obligaon to nofy any
person of such change.
VIA Technologies, Inc. reserves the right the make changes to the products described in this manual at any me without prior noce.
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VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
Revision History
Version Date Remarks
1.00 03/02/2023 Inial release

VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
Table of Contents
1. Introducon.................................................................................................................................................... 1
1.1 EVK Package Contents........................................................................................................................... 1
1.1.1 Firmware Folder Contents ............................................................................................................. 1
1.1.2 Document Folder Contents............................................................................................................ 1
1.1.3 Tool Folder Contents...................................................................................................................... 1
1.2 Version Informaon and Supported Features....................................................................................... 2
2. Image Installaon ........................................................................................................................................... 3
2.1 Installing with the Fastboot Mode........................................................................................................ 3
3. Hardware Funcons ..................................................................................................................................... 10
3.1 Enabling ADB Debugging .................................................................................................................... 10
3.2 Changing Kernel Debug Level.............................................................................................................. 10
3.3 Checking BSP Version.......................................................................................................................... 11
3.4 DVFS.................................................................................................................................................... 11
3.5 Video Playback.................................................................................................................................... 11
3.6 Audio Output and Recording .............................................................................................................. 11
3.7 Wi-Fi.................................................................................................................................................... 13
3.8 Bluetooth ............................................................................................................................................ 14
3.9 MTK NeuroPilot AI APU Hardware Acceleraon ................................................................................. 15
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1
VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
1. Introducon
This Quick Start Guide provides an overview on how to boot the Yocto image for the VIA ARTiGO A950 and
congure the supported hardware funcons in the build.
The VIA ARTiGO A950 Yocto 3.1 EVK is developed based on the MediaTek Yocto 3.1 BSP, and it enables the
hardware features of the VIA ARTiGO A950.
1.1 EVK Package Contents
There are three folders in the package listed as below.
Firmware folder Descripon
VIA_ARTiGO_A950_Yocto_3.1_EVK.zip Yocto evaluaon image
Document folder Descripon
VIA_ARTiGO_A950_Yocto_3.1_EVK_Quick_Start_Guide.pdf Quick Start Guide
Tool folder Descripon
VIA_Android_USB_Driver.zip VIA USB driver
np3.0_sample.tgz A sample test program
1.1.1 Firmware Folder Contents
VIA_ARTiGO_A950_Yocto_3.1_EVK.zip:Contains the precompiled Yocto image for evaluang the VIA ARTiGO
A950.
1.1.2 Document Folder Contents
VIA_ARTiGO_A950_Yocto_3.1_EVK_Quick_Start_Guide.pdf: This Quick Start Guide provides an overview on
how to boot the Yocto image for the VIA ARTiGO A950 and congure the supported hardware funcons in the
build.
1.1.3 Tool Folder Contents
VIA_Android_USB_Driver.zip: The VIA driver for ADB-over-USB.
np3.0_sample.tgz: A sample program to test MTK NeuroPilot AI APU hardware acceleraon.

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VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
1.2 Version Informaon and Supported Features
• Kernel version: 4.14.141
• Evaluaon image: Yocto 3.1
• Development based on MediaTek Yocto 3.1 BSP
• Supports eMMC boot
• Supports HDMI display
• Supports HDMI audio output
• Supports two 10/100Mbps Ethernet ports
• Supports MediaTek MT6358 Headphone and Mic-in
• Supports MediaTek MT7668 Wi-Fi 802.11ac and Bluetooth 5.0
• Supports VIA EMIO-2574 (SIM7600JC-H) 4G LTE mobile broadband miniPCIe module
• Supports MediaTek NeuroPilot AI APU hardware acceleraon

3
VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
2. Image Installaon
This secon explains the setup procedures for boong from the eMMC.
The precompiled images are provided in the "Firmware" folder.
2.1 Installing with the Fastboot Mode
Follow the steps below to install Yocto EVK image:
Step 1
Prepare the "fastboot tool" and install the "VIA USB driver" into your Windows 10 host machine.
To get the "fastboot tool" for Windows, please refer to the "SDK Plaorm Tools release notes" chapter on the
Android developer website hps://developer.android.com/studio/releases/plaorm-tools.
To install the "VIA USB driver", right-click "android_winusb" and select "Install".
Then click "Install" when the installer opens.
When the installer nishes, it will show a conrmaon message "The operaon completed successfully".
Step 2
Connect the Windows 10 host machine and the VIA ARTiGO A950 through the Micro USB 2.0 port using the
Micro USB cable.
Micro USB OTG
Micro USB 2.0 port diagram

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VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
Step 3
Power o the VIA ARTiGO A950 and dissemble the system chassis by removing the 4 screws located on the top
panel and 1 screw located on the boom panel.
Top panel
Boom panel

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VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
Step 4
Set the two OS image jumpers (J7 and J5) on the board to the Download mode as shown in the diagram below.
OS image jumpers diagram
J5 and J7 Sengs Pin 1 Pin 2 Pin 3
Normal mode (default) Open Short Short
Download mode Short Short Open
OS image jumper sengs
Step 5
Plug in the AC-to-DC power adapter to power on the VIA ARTiGO A950.
The VIA ARTiGO A950 will stop at "fastboot: processing commands" as shown in the debug console below.
Fastboot Mode
Note:
Make sure the Windows 10 host machine detects the VIA ARTiGO A950 as an ADB device.
If the EVK image is already installed, skip directly to Step 7.
Step 6
Extract the VIA_ARTiGO_A950_Yocto_3.1_EVK.zip le on your Windows 10 host machine.
To install the image, use the following command:
D:\VIA_ARTiGO_A950_Yocto_3.1_EVK>set PATH=D:\platform-tools;%PATH%
D:\VIA_ARTiGO_A950_Yocto_3.1_EVK>viaash.exe
++++++++++++++++++++++++++++++++++++++++++++++++++++
VIAFlash version v1.0.0
(built: Feb 10 2022 09:53:25 UTC)
++++++++++++++++++++++++++++++++++++++++++++++++++++
To let this tool work well, please
ensure the system is at fastboot mode!
If yes, please press any key to continue.
++++++++++++++++++++++++++++++++++++++++++++++++++++
>> Image OS is "Yocto"
Addr: [0x0 - 0x100000] size: 0x100000
Addr: [0x0 - 0x7ff]

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VIA ARTiGO A950 Yocto 3.1 EVK Quick Start Guide
Addr: [0x0 - 0x8000] size: 0x8000
Addr: [0x0 - 0x3f]
Addr: [0x8000 - 0x208000] size: 0x200000
Addr: [0x40 - 0x103f]
Addr: [0x208000 - 0x408000] size: 0x200000
Addr: [0x1040 - 0x203f]
Addr: [0x408000 - 0x2408000] size: 0x2000000
Addr: [0x2040 - 0x1203f]
Addr: [0x2408000 - 0x4408000] size: 0x2000000
Addr: [0x12040 - 0x2203f]
Addr: [0x4408000 - 0x5308000] size: 0xf00000
Addr: [0x22040 - 0x2983f]
Addr: [0x5308000 - 0x6208000] size: 0xf00000
Addr: [0x29840 - 0x3103f]
Addr: [0x6208000 - 0x7108000] size: 0xf00000
Addr: [0x31040 - 0x3883f]
Addr: [0x7108000 - 0x7208000] size: 0x100000
Addr: [0x38840 - 0x3903f]
Addr: [0x7208000 - 0x7308000] size: 0x100000
Addr: [0x39040 - 0x3983f]
Addr: [0x7308000 - 0x7408000] size: 0x100000
Addr: [0x39840 - 0x3a03f]
Addr: [0x7408000 - 0x7908000] size: 0x500000
Addr: [0x3a040 - 0x3c83f]
Addr: [0x7908000 - 0x7e08000] size: 0x500000
Addr: [0x3c840 - 0x3f03f]
Addr: [0x7e08000 - 0x4c208000] size: 0x44400000
Addr: [0x3f040 - 0x26103f]
Addr: [0x4c208000 - 0x90608000] size: 0x44400000
Addr: [0x261040 - 0x48303f]
Addr: [0x90608000 - 0x9128e400] size: 0xc86400
Addr: [0x483040 - 0x489471]
Addr: [0x9128e400 - 0x9128e400] size: 0x0
Addr: [0x489472 - 0x489471]
Addr: [0xffff0080 - 0xffff8080] size: 0x8000
Addr: [0x7fff80 - 0x7fffbf]
++++++++++++++++++++++++++++++++++++++++++++++++++++
MBR : OK
bl2.img : OK
boot.img : OK
boot.img : OK
cam_vpu_a.img : OK
cam_vpu_b.img : OK
cam_vpu_c.img : OK
spmfw.img : OK
sspm-t.img : OK
sspm-t.img : OK
tee.img : OK
tee.img : OK
system.ext4 : OK
system.ext4 : OK
logo.bmp : OK
userdata.ext4 : OK
++++++++++++++++++++++++++++++++++++++++++++++++++++
=============================================
Start to ash images --> Yocto
=============================================
Sending 'preloader' (283 KB) OKAY [ 0.046s]
Writing 'preloader' OKAY [ 0.016s]
Finished. Total time: 0.180s
Erasing 'pgpt' OKAY [ 0.016s]
Finished. Total time: 0.024s
Sending 'pgpt' (17 KB) OKAY [ 0.026s]
Writing 'pgpt' OKAY [ 0.009s]
Finished. Total time: 0.068s
------------------------------------------------
Platform will be rebooted and continue soon,
please wait for ash completed