rg35xx-rust

Example of a simple rust app developed on windows and cross compiled to run on a RG35XX.

Prerequsites

• Install WSL v2
• Install Docker Desktop
• Turn on Docker Desktop WSL 2
• Enable Docker support in WSL 2
• Download adb
• In your WSL Terminal
  • Install build-essential

    sudo apt install build-essential
    

  • Install Rust (I used the default install)
  • Install cross
• Clone this repo
• Optional
  • VS Code

Develop

In windows, modify the files in this-repo (I use VS Code)

Build

In your WSL Terminal

# Navigate to where you cloned this repo
# e.g. "cd /mnt/c/Users/your-name/rg35xx-rust"

# Build the Rust app
cross build --target armv7-unknown-linux-musleabihf

Deploy

In your Windows Terminal

# Navigate to this cloned repo
# e.g. "cd c:\Users\your-name\rg35xx-rust"

# Navigate to the built app
cd target\armv7-unknown-linux-musleabihf\debug

# Copy it to the device
\path\to\adb.exe push --sync .\hellorust "/mnt/mmc/hellorust"

Run

In your Windows Terminal

# Open a shell on your device
\path\to\adb.exe shell

# Run the app
/mnt/mmc/hellorust

Acknowledgements

• Easy to digest blog post Reproducible cross-compilation for Rust (with Docker) got me most of the way
• Hello World example in the official Rust docs
• Learned a lot from the Cross compiling for arm or aarch64 on Debian or Ubuntu video on YouTube and associated blog post
• Drone has a tutorial for another approach