Stlink-V3E Firmware Upgrade; Using An External Debugging Tool To Program And Debug The On-Board Stm32; Figure 9. Connecting An External Debugging Tool To Program The Onboard Stm32U5 - ST STM32U575I-EV User Manual

Note: 37xx:
• 374E for STLINK-V3E without bridges functions
• 374F for STLINK-V3E with bridges functions
7.3.3

STLINK-V3E firmware upgrade

The STLINK-V3E embeds a firmware upgrade mechanism for in-situ upgrades through the USB port. As the
firmware may evolve during the lifetime of the STLINK-V3E product (For example new functionalities, bug fixes,
support for new microcontroller families), it is recommended to visit the
the STM32U575I-EV Evaluation board and periodically, to stay up-to-date with the latest firmware version.
7.3.4

Using an external debugging tool to program and debug the on-board STM32

There are 2 basics ways to support an external Debug tool:
1. Keep the embedded STLINK-V3E running. Power on the STLINK-V3E at first until the red LED COM lights.
Then connect the external debugging tool through the CN18 STDC14/MIPI-10 debug connector.
2. Set the embedded STLINK-V3E in the high‑impedance state: When setting the STLK_NRST JP32 jumper
JP32 is ON, the embedded STLINK-V3E is in the reset state and all GPIOs are set in high impedance. Then
the user can connect his external debugging tool through the CN18 STDC14/MIPI-10 debug connector.
UM2854 - Rev 1
Figure 9. Connecting an external debugging tool to program the onboard STM32U5
STM32U575I-EV
Embedded STLINK-V3E
www.st.com website before starting to use
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