On Sat, Oct 5, 2019 at 07:21 PM, W5DXP wrote:
Where does it tell how to hook those 4 wires up to a NanoVNA? NRST->RST?
TCK->SWCLK? TMS->SWIM? GND->GND? How about SWDIO on the ST-link?
ST-LINK uses just 2 wires: SWDIO and SWCLK.
Also you're needs to connect VDD to 3.3V and GND to GND.
You can also connect 5-th wire RST to RST, but it is required only when SWD pins are reprogrammed in firmware. NanoVNA doesn't use SWD pins, so you can connect with STLINK with no need for RST connection.