Solder Bridge
State
(1)
Description
JP1
(external debug)
ON
An external debugger connected to the MIPI20 connector (CN5) can be used. The level
shifter (U1) is in high impedance (high‑Z).
STLINK-V3EC no longer drives the embedded STM32.
OFF The embedded STLINK-V3EC is selected (default configuration).
JP3
(ST-LINK RST)
ON STLINK-V3EC is in the Reset mode.
OFF STLINK-V3EC is active.
JP5
(IDD)
ON VDD_MCU is connected to VDD.
OFF VDD_MCU is not connected to VDD (the MCU is not power supplied).
1. The default status is in bold.
All the other solder bridges present on the STM32H5 Nucleo-144 board are used to configure several I/Os and
power supply pins for compatibility of features and pinout with the target‑supported STM32H5.
The STM32H5 Nucleo-144 board is delivered with the solder bridges configured according to the target STM32H5
supported.
UM3115
Solder bridges and jumpers
UM3115 - Rev 2
page 27/44
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