This is a companion repository to my blog posts Demystifying Arm Cortex-M33 Bare Metal: Startup and Demystifying Arm Cortex-M33 Bare Metal: Compile, Assembly and Link.
This repository contains a Makefile based template project for Arm Cortex-M33 bare metal C/Assembly application, particularly for STM32H563. The startup code startup_stm32h563.s and the linker script linker.ld are minimal with my modifications (mostly removals) to the original files in CMSIS and STM32CubeH5.
Makefile, startup code and the linker script contain useful comments if you want to modify them for your project.
You need to have Arm GNU Toolchain executables in path.
This sample is written and tested for NUCLEO-H563ZI on Linux (Ubuntu 22.04).
When you run make first time, it downloads (clones) CMSIS 5.9.0 and STM32CubeH5 1.1.0 from github.
make flash programs the MCU using STM32_Programmer_CLI.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.