ST NUCLEO-H755ZI-Q User Manual

UM2408 Rev 2 33/51
UM2408 Hardware layout and configuration
50
SB56, SB57 (D11)
NUCLEO-H745ZI-Q /
NUCLEO-H755ZI-Q:
OFF, ON
NUCLEO-H745ZI-Q / NUCLEO-H755ZI-Q: D11 (Pin 14 of CN7) is
connected to STM32H7 PB5 (SPI_A_MOSI/TIM_D_PWM2).
NUCLEO-H7A3ZI-Q:
ON, OFF
NUCLEO-H7A3ZI-Q: D11 (Pin 14 of CN7) is connected to STM32
PA7 (SPI_A_MOSI/TIM_E_PWM1).
SB66, SB67 (X2
crystal)
OFF
PC14 and PC15 are not connected to ST morpho connector CN11.
(X3 used to generate a 32 KHz clock).
ON
PC14 and PC15 are connected to ST morpho connector CN11.
(R41 and R42 must be removed).
SB71 (PH0), SB90
(PH1) (Main clock)
OFF, ON
PH0 is not connected to ST morpho
PH1 is connected to the ST morpho connector CN11
(MCO is used as the main clock for STM32H7 on PH0).
OFF, OFF
PH0 and PH1 are not connected to the ST morpho connector
CN11.
ON, ON
PH0 and PH1 are connected to the ST morpho connector CN11.
SB3, SB4, and SB72 must be removed.
SB72 (MCO)
ON
MCO of ST-LINK (STM32F723IEK6) is connected to PF0/PH0 of
STM32H7.
OFF
MCO of ST-LINK (STM32F723IEK6) is not connected to PF0/PH0
of STM32H7.
SB3, SB4 (External
25 MHz crystal)
OFF PH0 and PH1 are not connected to external 25 MHz crystal X2.
ON PH0 and PH1 are connected to external 25 MHz crystal X2.
SB83 (VBAT)
ON VBAT pin of STM32H7 is connected to VDD_MCU.
OFF VBAT pin of STM32H7 is not connected to VDD_MCU.
SB82, SB81 (B1-
USER)
ON, OFF B1 push-button is connected to PC13.
OFF, ON
B1 push-button is connected to PA0 (Set SB82 OFF if the ST Zio
connector is used).
OFF, OFF B1 push-button is not connected.
SB89 (PA0)
ON PA0 is connected to the ST Zio connector (Pin 29 of CN10)
OFF PA0 is not connected to ST Zio connector (Pin 29 of CN10)
SB69,SB40 (ADC on
A4 and A5)
SB62, SB39 (I
2
C on
A4 and A5)
ON, ON,
OFF, OFF
PC2, PF11 (ADC) are connected to A4 and A5 (Pins 9 and 11) on
the ST Zio connector CN9.
OFF, OFF,
ON, ON
PB9 and PB8 (I
2
C) are connected to A4 and A5 (Pins 9 and 11) on
the ST Zio connector CN9.
SB73, SB70 (A6)
ON, OFF
PF6 connected to Zio A6 (NUCLEO-H745ZI-Q / NUCLEO-H755ZI-
Q)
OFF, ON PC1 connected to Zio A6 (NUCLEO-H7A3ZI-Q)
SB93, SB58 (A7)
ON, OFF
PF10 connected to Zio A7 (NUCLEO-H745ZI-Q / NUCLEO-
H755ZI-Q)
OFF, ON PC5 connected to Zio A7 (NUCLEO-H7A3ZI-Q)
Table 16. Solder bridges (continued)
Bridge State
(1)
Description
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ST NUCLEO-H755ZI-Q Specifications

General

Brand	ST
Model	NUCLEO-H755ZI-Q
Category	Motherboard
Language	English