ST NUCLEO-WL55JC STM32WL - Figure 9. Connecting an External Debug Tool to Program the On-Board STM32 WL; Table 5. CN16 MIPI10 STDC14 Debug Connector

Figure 9. Connecting an external debug tool to program the on-board STM32WL
Table 5. CN16 MIPI10 / STDC14 debug connector
MIPI10 pin
STDC14 pin CN4 Function
- 1 NC Reserved
- 2 NC Reserved
1 3 3V3 Target VCC
2 4 T_SWDIO
T_JTMS target SWDIO using SWD protocol or Target JTMS using
JTAG protocol
3 5 GND Ground
4 6 T_SWCLK
T_JCLK target SWCLK using SWD protocol or Target JCLK using
JTAG protocol
5 7 GND Ground
6 8 T_SWO
T_JTMS target SWO using SWD protocol or Target JTDO using JTAG
protocol
7 9 NC Not connected
8 10 T_JTDI
T_JTDI not used by SWD protocol, Target JTDI using JTAG protocol,
only for external tools
9 11 GNDDetect GND detect for plug indicator, used on SWD and JTAG neither
10 12 T_NRST
T_JTMS target NRST using SWD protocol or Target JTMS using JTAG
protocol
- 13 T_VCP_RX Target RX used for VCP, from UART dedicated to bootloader
- 14 T_VCP_TX Target TX used for VCP, from UART dedicated to bootloader
UM2592
Embedded STLINK-V3E
UM2592 - Rev 1
page 14/49