ST STM32U5G9J-DK2 User Manual

6.4.2 Drivers
Since Windows
®
10, driver installation is not mandatory.
Anyway, it is highly recommended as it allocates an ST‑specific name to the ST-LINK COM port in the system
device manager.
For detailed information on the ST-LINK USB drivers, refer to the technical note Overview of ST-LINK derivatives
(TN1235).
6.4.3 STLINK-V3EC firmware upgrade
The STLINK-V3EC embeds a firmware upgrade (stsw-link007) mechanism through the USB port. The firmware
might evolve during the lifetime of the STLINK-V3EC product (for example to add new functionalities, fix bugs,
and support new microcontroller families). Keep the
STLINK-V3EC firmware up to date before starting to use the
STM32U5G9J-DK2 board. The latest version of this firmware is available from the www.st.com website.
For detailed information on the ST-LINK USB drivers, refer to the technical note Overview of ST-LINK derivatives
(TN1235).
6.4.4 Using an external debug tool to program and debug the on-board STM32
To support an external debug tool, set the jumper (JP3) to isolate the output I/O from STLINK-V3EC. Then
connect the external debug tool through the STDC14/MIPI10 debug connector (CN11) or through the
Tag‑Connect
™
footprint (CN10) with a TC2050-IDC-NL cable.
Table 5. MIPI10 debug connector (CN11) pinout
MIPI10
pin
STDC14
pin
CN11 Function
- 1
NC
(4)
Reserved
(1)
- 2 NC
Reserved
(1)
1 3 VDD
Target VDD (indication to the probe)
(2)
2 4 JTMS_SWDIO
Target SWDIO using SWD protocol or target JTMS (T_JTMS) using JTAG
protocol
3 5 GND Ground
4 6 JTCK_SWCLK
Target SWCLK using SWD protocol or target JTCK (T_JTCK) using JTAG
protocol
5 7 GND Ground
6 8 JTDO_SWO
Target SWO using SWD protocol or target JTDO (T_JTDO) using JTAG
protocol (SB44 ON)
(3)
7 9 JTCK_SWCLK
Target SWCLK using SWD protocol or target JTCK (T_JTCK) using JTAG
protocol
8 10 JTDI Not used by SWD protocol, target JTDI (T_JTDI) using JTAG protocol
9 11 GND_Det
GND detection for plug indicator
(5)
10 12 NRST
Target NRST using SWD protocol or target JTMS (T_JTMS) using JTAG
protocol
- 13 VCP_RX
Target RX used for VCP (bootloader compatible)
(6)
- 14 VCP_TX
Target TX used for VCP (bootloader compatible)
(2)
UM3223
Hardware layout and configuration
UM3223 - Rev 1
page 11/37

ST STM32U5G9J-DK2 Specifications

General

Brand	ST
Model	STM32U5G9J-DK2
Category	Computer Hardware
Language	English