Table 14. Solder Bridge And Jumper Configuration - STMicroelectronics STM32H7 Nucleo-144 User Manual

Hardware layout and configuration
Bridge
SB1 (3V3_PER)
SB2 (3V3)
SB80 (1V8_VDD)
SB6
SB12, SB19 (ST-LINK-
USART)
JP1 (ST-LINK_RST)
SB32
(SWO)
JP3
(NRST)
SB10, SB11, SB20
(IOREF)
SB14 (SDMMC_D0),
SB15 (SDMMC_D1)
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Table 14. Solder bridge and jumper configuration

(1)
State
ON Peripheral power 3V3_PER is connected to 3V3.
OFF Peripheral power 3V3_PER is not connected.
Output of voltage regulator ST1L05CPU33R is connected to
ON
3V3.
Output of voltage regulator ST1L05CPU33R is not
OFF
connected.
Output of voltage regulator ST1L05BPUR is connected to
ON
1V8_VDD.
OFF Output of voltage regulator ST1L05BPUR is not connected.
Input of voltage regulator ST1L05BPUR is connected to
ON
3V3_VDD.
OFF Input of voltage regulator ST1L05BPUR is not connected.
PG9 and PG14 on ST-LINK STM32F723IEK6 are connected
to PD8 and PD9 to enable virtual COM port for Mbed support.
ON
Thus PD8 and PD9 on ST morpho connectors cannot be
used.
PG9 and PG14 on ST-LINK STM32F723IEK6 are
OFF
disconnected to PD8 and PD9 on STM32H7.
OFF No incidence on ST-LINK STM32F723IEK6 NRST signal.
ST-LINK STM32F723IEK6 signal is connected to GND
ON
(ST-LINK reset to reduce power consumption).
SWO signal of the STM32H7 (PB3) is connected to ST-LINK
SWO input.
ON
(SB26 must be removed)
OFF SWO signal of STM32H7 is not connected.
Board RESET signal (NRST) is connected to ST-LINK reset
ON
control I/O (T_NRST).
Board RESET signal (NRST) is not connected to ST-LINK
OFF
reset control I/O (T_NRST).
OFF, ON,
IOREF is connected to VDD_MCU.
OFF
ON, OFF,
IOREF is connected to 3V3_PER.
OFF
OFF, OFF,
IOREF is connected to 3V3.
ON
ON These pins are connected to ST morpho connector CN12.
These pins are disconnected from ST morpho connector
OFF
CN12 to avoid stub of SDMMC data signals on PCB.
UM2407 Rev 1
Description
UM2407