VIA Technologies VAB-950 Manual de usuario
QUICK START GUIDE
VIA VAB-950
Yocto 2.6 EVK
1.00-23112020-173700
Copyright
Copyright © 2020 VIA Technologies Incorporated. All rights reserved.
No part of this document may be reproduced, transmied, transcribed, stored in a retrieval system, or translated into any language, in any
form or by any means, electronic, mechanical, magnec, opcal, chemical, manual or otherwise without the prior wrien permission of
VIA Technologies, Incorporated.
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The informaon provided in this document is believed to be accurate and reliable as of the publicaon date of this document. However,
VIA Technologies assumes no responsibility for the use or misuse of the informaon (including use or connecon 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 informaon
and product specicaons within this document are subject to change at any me, without noce and without obligaon to nofy 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 noce.
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
Revision History
Version Date Remarks
1.00 23/11/2020 Inial release
VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
Table of Contents
1. Introducon.................................................................................................................................................... 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 Informaon and Supported Features....................................................................................... 2
2. Image Installaon ........................................................................................................................................... 3
2.1 Installing with the SP Flash Tool............................................................................................................ 3
3. Hardware Funcons ....................................................................................................................................... 7
3.1 Using the Debug Console...................................................................................................................... 7
3.2 Changing Kernel Debug Level................................................................................................................ 7
3.3 Checking BSP Version............................................................................................................................ 7
3.4 DVFS...................................................................................................................................................... 8
3.5 Display................................................................................................................................................... 8
3.6 Video Playback...................................................................................................................................... 9
3.7 Audio Output and Record ..................................................................................................................... 9
3.8 Camera.................................................................................................................................................. 9
3.9 Wi-Fi.................................................................................................................................................... 10
3.10 Bluetooth ............................................................................................................................................ 11
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1
VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
1. Introducon
This Quick Start Guide provides an overview on how to boot the Yocto image for the VIA VAB-950 and congure
the supported hardware funcons in the build.
The VIA VAB-950 Yocto 2.6 EVK is developed based on the MediaTek Yocto 2.6 BSP and it enables the hardware
features of the VIA VAB-950.
1.1 EVK Package Contents
There are three folders in the package listed as below.
Firmware folder Descripon
VIA_VAB-950_Yocto_2.6_EVK.zip Yocto image and scaer-loading le
Document folder Descripon
VIA_VAB-950_Yocto_2.6_EVK_Quick_Start_
Guide.pdf Quick Start Guide
Tool folder Descripon
Driver_Auto_Installer_EXE.zip
UniversalAdbDriverSetup.zip
SP_Flash_Tool_exe_Windows.zip
MTK USB cable driver
Universal ADB driver
MTK SP Flash Tool
1.1.1 Firmware Folder Contents
VIA_VAB-950_Yocto_2.6_EVK.zip:contains scaer-loading le and the precompiled Yocto image for evaluang
the VIA VAB-950.
1.1.2 Document Folder Contents
VIA_VAB-950_Yocto_2.6_EVK_Quick_Start_Guide.pdf: This Quick Start Guide provides an overview on how to
boot the Yocto image for the VIA VAB-950 and congure the supported hardware funcons in the build.
1.1.3 Tool Folder Contents
Driver_Auto_Installer_EXE.zip: MTK USB cable driver.
UniversalAdbDriverSetup.zip: Universal ADB driver.
SP_Flash_Tool_exe_Windows.zip: MTK SP Flash Tool.
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
1.2 Version Informaon and Supported Features
• Kernel version: 4.4.146
• Evaluaon image: Yocto 2.6
• Development based on MediaTek Yocto 2.6 BSP
• Supports eMMC boot
• Supports HDMI display
• Supports HDMI audio output
• Supports MIPI DSI capacive touch panel
−AUO 10.1 B101UAN01.7 (1920×1200)
−eGalax I2C touch
• Supports COM1 as RS-232 mode (TX/RX) and COM as debug port
• 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 MIPI CSI OV5648 camera module
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
2. Image Installaon
This secon explains the setup requirements for boong from the eMMC.
The scaer-loading le and precompiled image are provided in the "Firmware" folder.
2.1 Installing with the SP Flash Tool
The rst step is to install the "MTK USB cable driver" and "Universal ADB driver" into your Windows 10 host
machine.
Then connect the Windows 10 host machine and the VIA VAB-950 through the Micro USB 2.0 port using the
Micro USB cable.
Micro USB 2.0 port diagram
Next, on the VIA VAB-950, set the two OS image jumpers (J7 and J5) to download mode as shown in the
diagram below.
OS image jumpers diagram
J5 and J7 Sengs Pin 1 Pin 2 Pin 3
Normal mode (default) Open Short Short
Download mode Short Short Open
OS image jumper sengs
Extract the VIA_VAB-950_Yocto_2.6_EVK.zip le, and run the ash_tool.exe from the SP_Flash_Tool_exe_
Windows folder on your Windows 10 host machine.
In the "Scaer-loading File" box, choose the MT8183_Yocto_AIV_scaer.txt from the \Firmware\ folder.
Next, click the drop-down arrow and select the "Download Only". Then click the "Download" buon.
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
Plug in the AC-to-DC power adapter to power on the VIA VAB-950.
Note:
Make sure the Windows 10 host machine detects the VAB-950 as ADB device.
Press and hold the SW3 buon + Reset buon at the same me and then release them.
SW3 buon diagram
Reset buon diagram
If the bar on the ash_tool becomes red, it means the image installaon has started.
If the color does not change, press the Reset buon + SW3 buon at the same me again and then release
them.
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
When the image installaon is completed, the color of the bar will change to yellow. Then you will see the
"Download OK" pop-up message as shown below.
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VIA VAB-950 Yocto 2.6 EVK Quick Start Guide
Unplug AC-to-DC power adapter to power o the VIA VAB-950.
Set the two OS image jumpers (J7 and J5) back to the normal mode seng.
Unplug the Micro USB cable and plug the power adapter back in.
Press the Power Buon for 2 seconds and then release it to power on the VIA VAB-950.
When the boot process is completed, you will see the Yocto desktop.
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