ST Nucleo-64 STM32U3 User Manual page 37

8.3 Solder bridge configuration for the expansion connector
Table 19 details the solder bridges of the STM32 Nucleo-64 board for the expansion connector.
Definition
®
ARDUINO IOREF
selection
®
ARDUINO green LED
(LD2)
1. The default configuration is in bold.
2. All Nucleo-64 products are delivered with solder bridges configured according to the supported target MCU.
3. For pins 35 and 37 used in the serial interface selection, refer to
UM3062 - Rev 2
Table 19. Solder bridge configuration
Bridge Setting (1)(2)
OFF IOREF is not connected to the VDD power supply.
SB9
ON IOREF is connected to the VDD power supply.
OFF IOREF is not connected to the 3V3 power supply.
SB11
ON IOREF is connected to the 3V3 power supply.
PA5 does not drive the LD2 LED. This configuration can be used
in case of a signal issue on SPI-SCK depending on the
OFF
SB10
ARDUINO
ON PA5 does not drive the LD2 LED and the SPI_SCK.
Comment
®
shield.
Section 7.9: Virtual COM port (VCP).
UM3062
Extension connectors
page 37/47