ST STM32G4 Nucleo-64 User Manual

Solder bridge control
Solder
bridge (SB)
State
(1)
Description
(1)
PA2
LPUART1 TX
SB17
ON STLINK_TX (T_VCP_TX) connected to LPUART1 TX PA2.
OFF
STLINK_TX (T_VCP_TX) not connected to LPUART1 TX
PA2.
SB18
ON ARD_D1_TX connected to LPUART1 TX PA2.
OFF ARD_D1_TX not connected to LPUART1 TX PA2.
PA3
LPUART1 RX
SB23
ON STLINK_RX (T_VCP_RX) connected to LPUART1 RX PA3.
OFF
STLINK_RX (T_VCP_RX) not connected to LPUART1 RX
PA3.
SB22
ON ARD_D0_RX connected to LPUART1 RX PA3.
OFF ARD_D0_RX not connected to LPUART1 RX PA3.
PC5
USART1 RX
SB20
ON STLINK_RX (T_VCP_RX) connected to USART1 RX PC5.
OFF
STLINK_RX (T_VCP_RX) not connected to USART1 RX
PC5.
SB19
ON ARD_D0_RX connected to USART1 RX PC5.
OFF ARD_D0_RX not connected to USART1 RX PC5.
USER button
SB16
ON USER button connected to PC13.
OFF USER button not connected to PC13.
SB21
ON USER button connected to PA0.
OFF USER button not connected to PA0.
HSE CLK
selection
SB25
&
SB26
ON HSE provided by external HSE 24 MHz CLK X3.
OFF HSE not provided by external HSE 24 MHz CLK X3.
SB24
ON
PF1-OSC_IN connected to ST morpho connector I/O usage
(CN7 pin 31).
OFF PF1-OSC_IN not connected to ST morpho connector.
SB28
ON
PF0-OSC_OUT connected to ST morpho connector I/O usage
(CN7 pin 29).
OFF PF0-OSC_OUT not connected to ST morpho connector.
SB27
ON ST-LINK MCO used for HSE CLK.
OFF ST-LINK MCO not used for HSE CLK.
PC4 on ST morpho SB33
ON PC4 connected to Morpho CN10 pin 34.
OFF PC4 not connected to Morpho CN10 pin 34.
VBAT SB38
ON VBAT (pin1 of STM32G4) powered by VDD.
OFF
VBAT (pin1 of STM32G4) supplied separately (through
morpho connector CN7 pin 33).
UM2505
Solder bridges
UM2505 - Rev 2
page 26/43

ST STM32G4 Nucleo-64 Specifications

General

Brand	ST
Model	STM32G4 Nucleo-64
Category	Motherboard
Language	English