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.
I would use UART and Tera Term on PC. Tera Term has a very good script language, that could be used for open the data file, wait for a symbol from UART and send data in a loop.