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Development Environment

The V821 SDK can be used on Ubuntu 18.04, 20.04, or 22.04. The supplied manual demonstrates VMware Workstation 17.5.2, but a native Linux host, a dedicated build server, or a well-provisioned VM is preferable for full builds.

Recommended VM resources:

  • At least four CPU cores.
  • 8GB RAM; 16GB or more for aggressive parallel builds.
  • At least 80GB free disk space because source, download caches, and out/ continue to grow.
  • Bridged networking so the board, VM, and Windows host can communicate directly.

Creating a VMware virtual machine

Ubuntu desktop

Ubuntu 20.04/22.04 Dependencies​

sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get install -y \
  build-essential python3 python3-dev python-is-python3 \
  subversion git libncurses5-dev zlib1g-dev gawk flex bison quilt \
  libssl-dev xsltproc libxml-parser-perl mercurial bzr ecj cvs \
  unzip lsof tree kconfig-frontends android-tools-mkbootimg \
  python2 libpython3-dev gcc-multilib

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install -y libc6:i386 libstdc++6:i386 lib32z1

On Ubuntu 18.04, python-is-python3 is normally unnecessary. Adjust package names according to APT output.

Basic Tools​

sudo apt-get install -y vim net-tools openssh-server filezilla

After enabling SSH, transfer SDK archives and firmware with FileZilla or SCP:

sudo systemctl enable --now ssh
ip addr

FileZilla transfer

Serial Console​

UART0 is a 3.3V TTL interface. The BOOT0 example uses 1500000 baud, while the Linux console rate may be controlled by U-Boot environment variables and the device tree. Confirm the actual rate from the SDK or boot log before opening the terminal.