I perhaps over-eagerly broke off the ST-Link portion of my Nucleo STM32F401 board, thinking that I could use it as a stand-alone ST-Link, but still program the rest of the Nucleo with it.

[DMcNa.45]

Looking at the manual, however, I don't see the SWD pins on the Nucleo board - are they internal-only, and now gone with the break-off operation? If they are still available, for programming via the ST-Link, which pins are they? Did I miss some aspect of the documentation? Thanks!

[Tesla DeLorean]

PA13 and PA14 should be the SWD connections, they should be exposed at some of the pin headers

[DMcNa.45]

Wow - good find! Between those two (which I assume are the SWD Clock and SWD I/O, maybe in that order), and the VDD, Ground, and Reset pins that are already pretty clear, I should be set. Thanks!

[Tesla DeLorean]

Pin definitions could be found in Data Sheet, or on Nucleo Schematic

PA13 JTMS-SWDIO

PA14 JTCK-SWCLK

PB3 JTDO-SWO

[Bill Dempsey]

The steps for using it standalone are in the Nucleo manual. Look for the section about "external" application. It was in section 5.2.4 of the last Nucleo manual that I have.