Hardware layout and configuration UM2411
14/61 UM2411 Rev 2
5.1 STLINK-V3E
The STLINK-V3E facility for the debug and programming of the STM32H747XIH6 is
integrated on the STM32H747I-DISCO Discovery kit. It supports the following features:
• Self-powered through a USB connector (Micro-B)
• USB 2.0 high-speed compatible interface
• Direct firmware update support (DFU)
• SWD and serial wire viewer (SWV) communication support
• Drag-and-drop Flash programming
• Two color LEDs: communication and power
USB connector CN2 can be used to power the STM32H747I-DISCO regardless of the
STLINK-V3E facility used for debugging or programming the STM32H747XIH6. This holds
also when the STLINK-V3E stand-alone tool is connected to connector CN13 or CN16 and
used for debugging or programming the STM32H747XIH6.
Section 5.2: Power supply
provides more detail about powering the STM32H747I-DISCO.
Refer to www.st.com for details about STLINK-V3E.
5.1.1 Drivers and firmware upgrade
The STLINK-V3E requires drivers to be installed on Windows
®
. It embeds firmware that
needs regular update in order to benefit from new functionality or corrections. Refer to the
Overview of ST-LINK derivatives technical note (TN1235) for details.
5.2 Power supply
The STM32H747I-DISCO discovery kit is designed to be powered from a 5 V DC power
source. One of the following five 5
V DC power inputs can be used, upon appropriate board
configuration:
• Micro-B USB receptacle CN2 of STLINK-V3E with enumeration:
Up to 500 mA can be supplied to the board (JP6 jumper setting on STlk on silkscreen).
Offers the enumeration feature described in Section 5.2.1.
• Micro-B USB receptacle CN2 of STLINK-V3E without enumeration:
Up to 500 mA can be supplied to the board directly without enumeration (JP6 jumper
setting on CHgr on silkscreen).
• Micro-AB USB receptacle CN1 of the USB OTG HS interface:
Marked USB OTG_HS on the board (JP6 jumper setting on HS on silkscreen). Up to
500 mA can be supplied to the board in this way.
• 7-12V DC power from CN8 pin8:
Named VIN on silkscreen, the extension connectors for Arduino Uno shields (JP6
setting on external power source on silkscreen (E5V)).
• Micro-B USB receptacle CN14 for external 5V:
Up to 500 mA can be supplied to the board (JP6 jumper setting on U5V on silkscreen).
The LD8 green LED turns on when the voltage on the power line marked as +5V is present.
All supply lines required for the operation of the components on the STM32H747I-DISCO
are derived from that +5V line.
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