How to connect STM32 with ST-Link Utility?

Here’s a clean, reliable way to hook your STM32 up to ST-Link and talk to it with ST-Link Utility (or the newer STM32CubeProgrammer). 1) Hardware wiring (SWD) Use SWD (2-wire) unless you specifically need JTAG. ST-Link ↔ STM32 VTref (Target/VAPP) → ...