numaru / hello-cortex-m

Compile C code for an ARM Cortex-M micro-controller and run it in Renode

Hello Cortex-M

This example project show how to compile C code for an ARM Cortex-M micro-controller and run it in Renode.

The targeted MCU is a stm32f103rb.

The projet use uart to printf() in the terminal. The libc_nano and nosys_nano standard libraries are used to achieve this.

Getting started

Development environment

• CMake (3.14.0)
• Manjaro Linux (18.0.2)
• Renode (1.9.0)
• GNU Arm Embedded Toolchain (8.3.0)
• VSCode (1.32.3) with the following extension:
  • C/C++ (0.22.1)
  • CMake (0.0.17)
  • LinkerScript (1.0.0)
  • ARM (0.3.0)

I belong to the TUI gang

Configure

cmake -S . -B build -G Ninja -DCMAKE_TOOLCHAIN_FILE=toolchain-files/gnu-cm3.cmake -DCMAKE_BUILD_TYPE=Debug

Build

cmake --build build

Run

# Run this command in a terminal
cmake --build build --target renode

# This one in another
arm-none-eabi-gdb build/HelloWorld.elf -ex "target extended-remote :3333"

Known issues

• The SysTick handler trigger breakpoints during debug and it makes it harder.