ST STM32G0 User Manual page 15

Solder bridge control
AREF
3.3 V voltage regulator
USER LED
1. The default SB state is in bold.
UM2591 - Rev 1
Solder
(1)
State
bridge (SB)
ON
AREF Arduino
SB10
OFF
AREF Arduino
ON 3.3 V main voltage regulator output enabled
3.3 V main voltage regulator output disabled (useful when
SB11
OFF powering the STM32G0 Nucleo-32 with a 3.3 V applied on
CN4 pin 14)
USER LED driven by STM32G0 PB3 also connected to
ON
Arduino
SB12
OFF USER LED not driven by STM32G0 PB3
ON USER LED driven by STM32G0 PC6
SB13
OFF USER LED not driven by STM32G0 PC6
(1)
Description
™
signal connected to 3.3 V
™
signal not connected to 3.3 V
™
D13 pin
UM2591
Solder bridges
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