The JTAG interface enables to connect debuggers like JTAGICE mkII.

The JTAG Interface follows the pinout:
| JTAG I/O Interface | GPIO Name-Alternate | |
|---|---|---|
| #RESET | _RESET | |
| TDO | TDO | |
| TCK | TCK | |
| TDI | TDI | |
| TMS | TMS | |
| EVTO | PA 15 |
see below the hardware schematic :
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