Archive for the ‘STLINK’ Category.

STLINK-V3-MODS Simple Breakout board

I bought few STLINKs V3 (MODS) modules. It is ST-Link module to be embedded on some target system. It can be used as any other ST-Link, but the pinout and castelated via contacts have 50 mils pitch. So I prepared very simple, single sided breakout board with 100 mils pitch. The most important signals are connected to larger pads:

  • SWD
  • VCP Rx/Tx
  • Bootloader Bridge via UART
  • Supply

The “toner transfer” pdf is here (with marked signals):

There is no schematic, just layout:

PCB