Linux Build and Flashing

Development Host

The supplied manual covers both VMware and native Ubuntu. A native Ubuntu host or a validated container is preferable for a complete SDK build. Do not copy the old Ubuntu 14.04/16.04 setup blindly; check the current SDK README first.

Serial Tools

sudo apt-get install picocom
sudo picocom -b 115200 /dev/ttyUSB0

Exit picocom with Ctrl+A, then Ctrl+Q.

Minicom is another option:

sudo apt-get install minicom
sudo minicom -s

Configure 115200 8N1 with software and hardware flow control disabled.

Build Dependencies

The dependency list from the manual can be consolidated as:

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl   zlib1g-dev gcc-multilib g++-multilib genromfs libc6-dev-i386   libncurses5-dev libx11-dev ccache libgl1-mesa-dev libxml2-utils   xsltproc unzip lzop liblz4-tool genext2fs make device-tree-compiler   u-boot-tools libssl-dev autoconf python3-pyelftools libusb-1.0-0-dev   p7zip-full adb fastboot

Package names vary between Ubuntu releases; replace unavailable packages according to APT output.

Cross Compiler

The toolchains are included in the source package. The manual lists paths such as:

prebuilts/gcc/linux-x86/aarch64/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/
prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/

Read the current Makefile and build scripts to determine the actual CROSS_COMPILE value.

Source Retrieval

tar -xvf x507_linux.tar.bz2
cd x507_linux
git checkout .

The archive name and download location can change between releases.

Example SDK Layout

brandy  build  buildroot  build.sh  device  doc  kernel  out  platform  test  tools

Build Help

./build.sh -h

Build Commands

U-Boot

./build.sh uboot

Default Build

./build.sh

Buildroot Filesystem

./build.sh buildroot

Package Firmware

./build.sh pack

Use the paths printed by the current build script; outputs are normally placed below out/.

PhoenixSuit Flashing

1. Install PhoenixSuit and the Allwinner USB driver on Windows.
2. Select the complete IMG generated by ./build.sh pack.
3. Do not start the upgrade before the device has entered upgrade mode.
4. Hold FEL/RECOVERY, connect Micro USB OTG, and apply 12V power; press Reset if required.
5. After the tool detects the device, confirm formatting and flashing.

ADB and Serial Checks

When ADB is enabled in the Linux image:

adb devices
adb shell

Configure the serial terminal for 115200 8N1 with flow control disabled.