Small version of ST-Link v2.1 (37mm x 14mm board)
Features
- SWD (Serial Wire Debug) - standard pins used for external targets include SWDIO, SWCLK, GND, and sometimes NRST.
- Virtual COM Port (VCP)
- USB Power Management: Supports requesting more than 100 mA from the host PC to power the application board.
- SWO Support: Includes a Serial Wire Output (SWO) pin for real-time trace debugging, which is often missing on common "dongle" clones of the V2.
Draftsman_STLinkV2_1_rev1_0.pdf - Some useful drawings
Schematic_STLinkV2_1_rev1_0.pdf - Schematic
Project/ - Project files
Gerber/STLinkV2_1_rev1_0.zip - Gerber files
The stack parameters for proper USB port operation are as follows:
This is the default stackup of one of those Chinese factories.