UM2408 Rev 2 15/51
UM2408 Hardware layout and configuration
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6.3 Program and debug the onboard STM32H7 target
There are two different ways to program and debug the onboard STM32H7 MCU.
• Using the embedded STLINK-V3E
• Using an external debug tool
6.3.1 Using the STLINK-V3E to program and debug the onboard STM32H7
Features
The STLINK-V3E programming and debugging tool is integrated into the STM32H7 Nucleo-
144 board.
The STLINK-V3E makes the STM32H7 Nucleo-144 board Mbed enabled.
The embedded STLINK-V3E supports:
• 5 V power supplied by USB connector (CN1)
• USB 2.0 high-speed-compatible interface
• JTAG/serial wire debugging (SWD) specific features:
– 3 V to 3.6 V application voltage on the JTAG/SWD interface and 5 V tolerant
inputs
–JTAG
– SWD and serial viewer (SWV) communication
• Direct firmware update feature (DFU) (CN2)
• STDC14 (MIPI10) compatible connector (CN5)
• Status COM LED (LD4) which blinks during communication with the PC
• Fault red LED (LD6) alerting on USB overcurrent request
• 5 V/500 mA output power supply capability (U2) with current limitation and LED
• Green LED ON: 5 V enabled (LD5)
How to use
It is very easy to use the STLINK-V3E to program and debug the onboard STM32H7.
1. Verify that the jumper JP2 of Power Supply Sources is correctly set (Refer to
Section 6.4).
2. Connect the board to a PC with a USB cable 'type A to micro-B' through the USB
connector CN1.
Note: For more details regarding the STLINK-V3E functionalities, refer to the STLINK-V3E user
manual on the www.st.com website
Drivers
Before connecting the product via USB to a PC running on Windows 7 or 8, a driver for the
STLINK-V3E must be installed (Not required for Windows 10). It is available on the
www.st.com website.
In case the STM32H7 Nucleo-144 board is connected to the PC before installing the driver,
the PC device manager may report some Nucleo interfaces as “Unknown”.
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