Small project example to be used as template for embedded software in Rust on the STM32F429-Discovery board.
Evaluation hardware STM32F429I-DISC1 (https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-discovery-kits/32f429idiscovery.html#resource)
- STM32F429ZIT6 with 2 MB flash, 256 KB RAM, 180 MHz
- 2 user LEDs
- 1 user button
- MEMS motion sensor
- LC display
- 8 MB SDRAM
- this hardware revision has onboard ST-LINK/V2-B
- Rust v1.46.0
- cargo install cargo-binutils
- cargo install cargo-generate
- rustup component add llvm-tools-preview
- rustup target add thumbv7m-none-eabi
- GNU Arm Embedded Toolchain 9-2020-q2
- OpenOCD (xPack release https://github.com/xpack-dev-tools/openocd-xpack/releases/)
- Visual Studio Code
- Rust plugin (rust-lang.rust)
- Cortex-Debug plugin (marus25.cortex-debug)
- Visual Studio 2019 Community Edition (necessary for some build tools)
- ST-LINK/V2-B USB driver
If everything is installed properly, the workspace can be opened in VS Code and a hit on F5 should build the project without errors or warnings and automatically start a debug session. The program should be halted at the breakpoint at main().
Not sure, if these are really necessary here:
sudo apt-get install gcc make clang
Required installation:
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
cargo install cargo-binutils
Building cargo-generate requires (at least) libssl-dev to be installed:
sudo apt-get install libssl-dev
cargo install cargo-generate
rustup component add llvm-tools-preview
Verify installation for x86_64 according to https://docs.rust-embedded.org/discovery/f3discovery/03-setup/index.html:
cargo new first-test
cargo cd first-test
cargo run
cargo size -- --version
Then install the embedded toolchain: rustup target add thumbv7em-none-eabihf
This project should now be able to be built:
cd rust-stm32f4-disco-blinky
cargo build
To debug, download the latest ARM GNU Embedded Toolchain (in this case 10.3-2021.10) and run:
sudo tar -xvjf gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2 -C /usr/share/
sudo ln -s /usr/share/gcc-arm-none-eabi-10.3-2021.10/bin/* /usr/bin/
sudo apt-get install libncurses5
arm-none-eabi-gcc --version
Now follow https://docs.rust-embedded.org/discovery/f3discovery/03-setup/linux.html#udev-rules and https://docs.rust-embedded.org/discovery/f3discovery/03-setup/verify.html until OpenOCD can connect to ST-Link: openocd -f interface/stlink.cfg -f target/stm32f4x.cfg and keep it running in a separate terminal.
In another terminal, calling arm-none-eabi-gdb -q -ex "target remote :3333" target/thumbv7em-none-eabihf/debug/rust-stm32f4-disco-blinky should successfully flash the controller and halt it (i.e. at Reset()).
Project was created following the Rust Embedded Book (https://docs.rust-embedded.org/book/) and the Discovery book (https://rust-embedded.github.io/discovery/).
Based partly on the projects https://github.com/rust-embedded/cortex-m-quickstart, https://github.com/adamgreig/stm32f4-demo and https://github.com/rust-embedded/discovery.
Debugging via Visual Studio Code was enabled following the article on https://dev.to/rubberduck/debugging-rust-arm-cortexm-programs-with-visual-studio-code-336h.