8 Board connectors
8.1 CN15 STLINK-V3E USB Micro-B connector
The CN15 USB connector is used to connect the embedded STLINK-V3E to the PC for programming and
debugging purposes.
Figure 10. CN15 Micro-B connector (Front view)
The related pinout for the USB ST-LINK connector is listed in Table 11.
Table 11. CN15 USB Micro-B connector pinout
Connector
Pin number Pin name Signal name ST-LINK MCU pin Function
CN15
1 VBUS 5V_USB_CHARGER - 5 V power
2 DM USB_DEV_HS_CN_N PB14 USB differential pair M
3 DP USB_DEV_HS_CN_P PB15 USB differential pair P
4 ID - - -
5 GND - - GND
8.2 CN14 USB OTG FS Micro-AB connector
A USB OTG full-speed communication link is available at CN14 USB Micro-AB receptacle connector. Micro-AB
receptacle enables USB Host and USB Device features.
Figure 11. CN14 USB OTG FS Micro-AB connector (Front view)
UM2679
Board connectors
UM2679 - Rev 1
page 20/42
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