ST MB1430, User Manual

Page: 17 / 30

6.7 Solder bridges
All the 16 solder bridges are located on the bottom layer of the STM32G4 Nucleo-32 board.
Table 9. Solder bridge configuration
Solder bridge control
Solder
bridge (SB)
State
(1)
Description
(1)
T_VCP_TX SB1
ON T_VCP_TX is connected to STM32G4 I/O PA2.
OFF T_VCP_TX is not connected to STM32G4 I/O PA2.
T_VCP_RX SB12
ON T_VCP_RX is connected to STM32G4 I/O PA3.
OFF T_VCP_RX is not connected to STM32G4 I/O PA3.
3.3 LDO output SB15
ON U9 LDO output provides 3.3V.
OFF
U9 LDO does NOT provide 3.3V. The user must connect an
external 3.3V source.
SMD ferrite bead L1 SB5
ON
SMD ferrite bead L1 shunted. VDDA connected on VDD
voltage supply
OFF SMD ferrite bead L1 on STM32G4 VDDA voltage supply
LD2
SB7
ON
The green user LED LD2 is connected to STM32G4 I/O
PB8 (SB7 ON, and SB6 OFF).
OFF
The green user LED LD2 is connected to STM32G4 I/O PB3
(SB7 OFF, and SB6 ON).
SB6
ON
The green user LED LD2 is connected to STM32G4 I/O PB3
(SB6 ON, and SB7 OFF).
OFF
The green user LED LD2 is connected to STM32G4 I/O
PB8 (SB6 OFF, and SB7 ON).
AGND SB16
ON AGND connected to GND. Reserved, do not modify.
OFF AGND not connected to GND.
SB3
ON
STM32 PA15 is connected to CN3 pin 7 for I2C SCL
support on ARDUINO
®
Nano A5. In such a case, STM32
PA15 does not support ARDUINO
®
Nano D5 and PA6
must be configured as floating input.
OFF
CN3 pin 7 is used as ARDUINO
®
Nano analog input A5
without I2C support and CN4 pin 8 is available as ARDUINO
®
Nano D5.
SB2
ON
STM32 PB7 is connected to CN3 pin 8 for I2C SDA
support on ARDUINO
®
Nano A4. In such a case, STM32
PB7 does not support ARDUINO
®
Nano D4 and PA5 must
be configured as floating input.
OFF
CN3 pin 8 is used as ARDUINO
®
Nano analog input A4
without I2C support and CN4 pin 7 is available as ARDUINO
®
Nano D4.
ARD_A2 SB14
ON
ARDUINO
®
Nano A2 (CN3, pin 10) is connected to STM32G4
I/O PA3.
OFF
ARDUINO
®
Nano A2 (CN3, pin 10) is disconnected to
STM32G4 I/O PA3.
T_SWO on PB3 SB4
ON T_SWO connected to PB3.
OFF T_SWO not connected to PB3.
UM2397
Solder bridges
UM2397 - Rev 2
page 17/30