Power Supply; Power Supply Input From Stlink-V3E Usb Connector (Default Setting) - STMicroelectronics STM32H7 User Manual

UM2407
MIPI-10
Pin
-
-
6.4

Power supply

Five different sources can provide the power supply:
•
A host PC connected to CN1 through a USB cable (default setting)
•
An external 7 to 12 V power supply connected to CN8 pin 15 or CN11 pin 24
• An external 5 V power supply connected to CN11 pin 6
•
An external 5 V USB charger (5V_USB_CHGR) connected to CN1
• An external 3.3 V power supply (3V3) connected to CN8 pin 7 or CN11 pin 16
Either the host PC through the USB cable, or an external source V
or +3.3 V power supply pins on CN8 or CN11, provides the power supply. In case V
or +3.3 V is used to power the Nucleo-144 board. This power source must comply with the
EN-60950-1: 2006+A11/2009 standard and must be safety extra low voltage (SELV) with
limited power capability.
In case the power supply is +3.3 V, the STLINK-V3E is not powered and cannot be used.
6.4.1

Power supply input from STLINK-V3E USB connector (default setting)

The 5 V signal on the STLINK-V3E USB connector (CN1) can power the STM32H7 Nucleo-
144 board and its shield. Use the JP2 [1-2] configuration of the STLINK jumper (refer to
Figure 10).
This is the default setting.
Table 5. MIPI-10 debug connector (CN5) (continued)
STDC14
CN5
Pin
13 T_VCP_RX
14 T_VCP_TX
UM2407 Rev 3
Hardware layout and configuration
Target RX used for VCP (must be UART dedicated to
bootloader)
Target TX used for VCP (must be UART dedicated to
bootloader)
Designation
(7 to 12 V), E5V (5 V),
IN
, E5V,
IN
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