Lindenis V833

Key Features

Processor core

• Single-core ARM Cortex-A7 Processor
• ARMv7 ISA standard ARM instruction set
• Thumb-2 Technology
• Jazeller RCT
• NEON Advanced SIMD
• VFPv4 floating point
• 32KB L1 Instruction cache and 32KB L1 Data cache
• 128KB L2 cache

Video Encoding Performance

• H.264 BP/MP/HP, H.265 Main Profile encoding
• I/P/Dual P frame H.264/H.265 encoding
• MJPEG/JPEG baseline encoding
• Real-time multi-stream H.264/H.265 encoding capability：
  • 5M@20fps + 1080p@20fps (or 1080p@60fps + VGA@60fps ) H.264
  • 5M@30fps + 720p@30fps (or 1080p@90fps) H.265
• Maximum 8-megapixel resolution for H.264/H.265 encoding
• JPEG snapshot performance of 1080p@60fps independently
• CBR, VBR modes
• Output bit-rate ranging from 2kbit/s to 100Mbit/s.
• Maximum 16 ROIs without encoding for AI
• Encoding frame rate ranging from 1/16 fps to 60fps.

Video and Graphics Processing

• Support Electronic Image Stabilization Engine
• Supports Lens distortion correction, fisheye PTZ and calibration
• Picture rotation by 90°180°270°
• Support 2 Video channels, one up to 1080p@60fps, the other one up to 720p@60fps
• Support 1 UI channel, up to 1080p@60fps
• Blending of 2 Video channels and 1 UI channel
• Support SmartColor for excellent display experience

NPU Processing

• Maximum performance up to 0.4Tops
• Support Conv, Activation, Pooling, BN, LRN, FC/Inner Product
• Support Face detect, face recognition, human detection

Professional Image Effects

• Maximum performance is 2592 x1936@30fps
• Maximum resolution of is 2688 x 2688
• Adjustable 3A functions (AE, AWB and AF)
• Supports 2F WDR and Local Tone mapping,
• Supporting highlight suppression and backlight compensation, bad pixel correction, Lens shading correction
• Supports defect pixel correction, 2D/3D denoising.
• Supports image mirroring and flipping
• Provides ISP tuning tools for the PC

Various interfaces

• Wi-Fi : XR819
• BT1120 IN/OUT
• SPK, LINE-IN
• MIPI CSI, MIPI DSI, TP
• KEY, POWER_KEY, FEL
• Network: 10/100Mbps Ethernet
• USB: 1 x Micro USB, TF card
• Power Supply: 5V/2A micro USB, 5V/2A DC-IN, 3.7V Battery

Software Support

• Tina (base on linux-4.9)
• RTOS

Target Applications

• SDV
• Smart IPC
• Smart Camera

Accessories Step-by-Step Guides

Power Supply

• 5V 2A Power Supply

LCD

• 5" 720P LCD with CTP brief

Hardware Specification

Board Features

Video Out

• MIPI-DSI, 4 lanes, up to 1080P
• LCD interface
• BT1120 OUT

Video In

• 1 x MIPI-CSI - Camera interface, 4 lanes per channel
• BT1120 IN

Audio

• 3.5mm Line in
• SPK
• 1 x mic

Network

• 10/100/100 Ethernet
• WiFi 2.4G

Storage

• MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

Expansion Ports

• Flexible Pin Headers 2x13 pins Reserved:
  • GPADC
  • 5V, 1V8, 2V8 and DC Power Supply
  • I2C x 1
  • I2S x 1
  • PWM x 1

Board Information

• Board Dimensions: 75mm x 68mm
• Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector

Hardware Documents

Datasheets

---

• V833 Datasheet
• V833 PINOUT V1.1
• PMIC AXP2101 Datasheet
• XR819 WIFI Datasheet
• Ethernet Transceiver Datasheet
• SPI NOR FLASH MX25L12835FM2I-10G Datasheet

Schematic and Silk

---

• v833_Lindenis_SBC_V2_0_Schematic.pdf
• v833_Lindenis_SBC_V2_0_SILK_TOP.pdf
• v833_Lindenis_SBC_V2_0_SILK_BOTTOM.pdf

---

Tina Linux

Tina Linux Overview

Features

• Linux Kernel 4.9 (official version)
• u-boot-2018
• ARM GCC based cross toolchain
• Integrated build system

Layout

├── build
├── config
├── Config.in
├── dl
├── lichee
├── logs
├── Makefile
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools

Download and Build

Prebuilt Image

For fast begin, you can download the prebuilt image here. Click me
国内开发者请在此下载提取码：v833

System requirements

Listed below are the recommended requirements for downloading and building the SDK:

• CPU: x86_64 or better family processor
• Memory: 8GB or higher
• Disk: 20GB free hard disk space, if you build it in a Virtual machine, I recommand you allocate a 30G virtual hard disk.
  • The Whole SDK is about 15G.
• OS: Ubuntu 14.04 (tested) or higher
• Network: internet connection

Linux host setup

Ubuntu 14.04

HINT: later version should also work.

Install prerequisites

$ sudo apt-get update
$ sudo apt-get install build-essential libncurses5-dev zlib1g-dev gawk git git-core ccache gettext libssl-dev xsltproc gperf subversion 
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386

Sudo without password

$ sudo visudo

Add this line at the end (change “tom” to your username):

tom ALL=(ALL) NOPASSWD: ALL

Ctrl-X to leave, save your changes, and you're done!

Downloading

The SDK is available on github. For Chinese developer, it is available on gitee too.
由于国内从Github上下载速度较慢，建议从Gitee上下载 --> Another way to get the SDK from Gitee

We use Repo manage Git repositories. Clone Repo from android Git repositories or other mirrors and install it. Becase there are some big files in the SDK, please run the following command before you start the downloading.

$ git config --global http.postBuffer 524288000

Then run this to check:

$ git config --list

For Lindenis V833 SBC, download the SDK on Github via:

$ mkdir v833-lindenis
$ cd v833-lindenis
$ repo init -u https://github.com/lindenis-org/manifest.git -b v833 -m v833-lindenis.xml
$ repo sync

The Download time depends on your network connection speed. After finish the download, you should get below directories and files:

build  config  Config.in  device lichee  Makefile  package  prebuilt  rules.mk  scripts  softwinner  target  toolchain  tools

Start a branch for local workspace:

$ repo start v833-lindenis --all

Building

1.setup env

• For Lindenis V833 SBC:

$ source build/envsetup.sh

$ lunch

Then you will see the follwing menu, and enter the number to select the target case, and enter:

You're building on Linux

Lunch menu... pick a combo:
     1. v833_lindenis-tina

Which would you like?: 1

2.build source

• Build kernel and rootfs

If you are the first time to download the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.

$ make menuconfig

$ make kernel_menuconfig

Then make it and wait ...

$ make -j8 V=s

3.build image

$ pack

Installation

• Download the PhoenixSuit_V1.1.0.7z (Click here)and extract to a local folder (note: Windows only) and run one of the installers.
• Open the PhoenixSuit.exe.

• Click the "firmware" button.

• Click the "image" button to select the image file.

• Now the PC tool is ready. Just keep pressing the "fel" key on the SBC.

OS

System Setup

Uart

• By default, the ttyS3 is assigned to the Linux console. The UART transmit pin called "TX" and receive pin called "RX" are in the pin group, whose label is DEBUG. And the bit rate is 115200 bps.See below red rectangle.

Ethernet

• board.dts should config as follow:

gmac0: eth@05020000 {
        compatible = "allwinner,sunxi-gmac";
        pinctrl-names = "default", "sleep";
        pinctrl-0 = <&gmac_pins_a &gmac_pins_b &gmac_pins_c &gmac_pins_d>;
        pinctrl-1 = <&gmac_pins_e>;
        phy-mode = "rmii";
        use_ephy25m = <1>;
        tx-delay = <7>;
        rx-delay = <31>;
        phy-rst = <&pio PH 4 1 1 1 0>;
        gmac-power0;
        gmac-power1;
        gmac-power2;
        status = "okay";
};

Wifi

board.dts should config as follow:

wlan:wlan {
        compatible = "allwinner,sunxi-wlan";
        clocks = <&clk_losc_out>;
        wlan_busnum = <1>;
        wlan_usbnum = <3>;
        wakeup_source = <0>;

        wlan_power-supply = <&reg_dcdc1>;
        io_regulator-supply = <&reg_dcdc5>;

        wlan_power_vol = <3300000>;
        io_regulator_vol = <3300000>;

        /*wlan_en;*/
        wlan_regon = <&pio PG 7 1 0 1 0>;
        wlan_hostwake = <&pio PG 6 0 0 1 0>;
        status = "okay";
};

Audio

audiocodec

• board.dts should config as follow:

codec:codec@0x05096000 {
        pa_level = <0x1>;
        main_gain = <0x17>;
        adcdrc_cfg = <0x00>;
        adchpf_cfg = <0x01>;
        dacdrc_cfg = <0x00>;
        dachpf_cfg = <0x00>;
        digital_vol = <0x00>;
        lineout_vol = <0x1a>;
        pa_msleep_time = <0xa0>;
        gpio-spk = <&pio PH 3 1 1 1 1>;
        status = "okay";
};

i2s

• board.dts should config as follow:

snddaudio0:sound@1 {
        audio_format = <0x01>;
        daudio_master = <0x04>;
        signal_inversion = <0x01>;
        sunxi,snddaudio-codec = "ac108.1-003b";
        sunxi,snddaudio-codec-dai = "ac108-pcm0";
        status = "disabled";
};