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STM32H747 Dual-Core Project

Build Project

Native environment

Building the project requires the following setup on the host machine, which preferebly runs a Debian-like linux distribution:

1. Install the following apt packages

libudev-dev
gdb-multiarch
picocom
openocd
curl
stlink-tools
binutils-multiarch
xxd
binutils-arm-none-eabi
srecord

2. Install Rust and Cargo

3. Install additional Rust tools

rustup component add llvm-tools-preview
rustup target add thumbv7em-none-eabihf
rustup install nightly
rustup +nightly target add thumbv7em-none-eabihf
cargo install cargo-binutils --vers 0.3.6
cargo install cargo-flash
cargo install cargo-make
cargo install microamp-tools --git https://github.com/rtfm-rs/microamp

4. Use the makefile from the project to build images

cargo make

After this step there are multiple outputs in the artifacts directory.

  • image-0.bin and image-1.bin: Binary image for each core
  • image-0.elf and image-1.elf: ELF image for each core
  • image-0.hex and image-1.hex: HEX image for each core
  • merge.hex: A merged HEX image that contains code for both cores

Docker

1. Install the following dependencies

2. Open the project with VSCode

3. Reopen project in container

Press Ctrl+Shift+P and start typing Dev Container: Reopen in Container and select that option.

4. Build using the command line

The container is built, use the shell in VSCode to build the project using the makefile.

cargo make

Flash image to target

Single core - single core project (earlier commits)

Use cargo flash utility

cargo flash --chip STM32H747XIHx

Single core - dual core project

Use cargo flash utility

# Core 0
cargo flash --elf target/thumbv7em-none-eabihf/release/h747-dual-core-0 --chip STM32H747XIHx

# Core 1
cargo flash --elf target/thumbv7em-none-eabihf/release/h747-dual-core-1 --chip STM32H747XIHx

Dual core (merged HEX image)

Use the STM32CubeProgrammer utility provided by STM. Tool can be downloaded from their website.

Known errors with flashing

~~There is an error where project does not work after flashing, to fix it:~~This issue was fixed in this commit.

Known errors with the program

Soft reset or even power reset does not reset shared variables.

Debugging in VSCode

Follow this guide: https://s2e-systems.github.io/Debugging-embedded-Rust-programs-using-VS-Code/

Installing GDB:

sudo apt install -y gdb-multiarch openocd
sudo ln -s /usr/bin/gdb-multiarch /usr/bin/arm-none-eabi-gdb

Config file source: https://github.com/openocd-org/openocd/blob/master/tcl/board/st_nucleo_h747xi.cfg