Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
The build log is clearly saying that some functions are duplicated.
So Please re-try by removing the syscalls.c file, because rdimon library redefines the system calls functions