Requirements

• Zephyr development environment: Follow Getting Started Guide
• Milk-V Duo: Install the latest image

Steps

• Clone repo

  git clone https://github.com/kinsamanka/milkv-zephyros
  

• Build firmware

  cd milkv-zephyros
  west init -l manifest-repo
  west update
  cmake -B build <blinky or openamp>
  make -C build
  

• Install firmware

  scp -O build/zephyr/zephyr.elf root@<milk-v ip addr>:/lib/firmware
  

• Run

  ssh root@<milk-v ip addr>
  echo stop > /sys/class/remoteproc/remoteproc0/state
  echo -n zephyr.elf > /sys/class/remoteproc/remoteproc0/firmware
  echo start > /sys/class/remoteproc/remoteproc0/state
  

Note

• The OpenAMP sample needs an updated remoteproc and mailbox drivers. The sources can be found here