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Rust version of the PiControl driver for the Revolution Pi

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picontrol-rs

Rust version of the PiControl driver for the Revolution Pi.

An example: pitestrs

A command line tool to control the Pi Control process image is in the file pitestrs.rs. The executable can be cross-compiled by launching ./build_pi.sh. See below how to enable cross compilation.

How to generate the Rust FFI bindings to C

  1. Use bindgen binary directly:

    TARGET=armv7-unknown-linux-gnueabihf bindgen -o src/picontrol.rs kunbus/interface/piControl/wrapper.h  -- -I`pwd`/kunbus/interface/piControl
  2. Use bindgen with a build.rs file

Rust cross-compilation

Cross project with Docker

See: https://github.com/rust-embedded/cross

Same operating system

See: https://medium.com/@wizofe/cross-compiling-rust-for-arm-e-g-raspberry-pi-using-any-os-11711ebfc52b

source $HOME/.cargo/env

sudo apt-get install -qq gcc-arm-linux-gnueabihf
rustup target add armv7-unknown-linux-gnueabihf

Configure Cargo for cross-compilation

mkdir -p ~/.cargo
# > should not be included when pasting
cat >> ~/.cargo/config << EOF
[target.armv7-unknown-linux-gnueabihf]
linker = "arm-linux-gnueabihf-gcc"
EOF

# you may need to install this on Ubuntu 18.06
sudo apt-get install g++-multilib libc6-dev-i386
sudo apt-get install -qq gcc-arm-linux-gnueabihf

You can now compile:

cargo build --target=armv7-unknown-linux-gnueabihf

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