6.3 Embedded STLINK-V3EC
The new STLINK-V3EC is the embedded version of the STLINK-V3 included in the design of the
STM32H7Rx/7Sx Nucleo-144 board. It allows access to the program/debug and monitoring functions of the
STM32 through the USB ST-LINK connector (CN5).
The STLINK-V3EC facility for debugging and flashing is integrated into the STM32H7Rx/7Sx Nucleo-144 board.
The embedded STLINK-V3EC supports SWD and VCP/JTAG (SB27 ON when using JTAG) for STM32 devices.
Two level shifters are used on the VCP and SWD/JTAG interface to offer a debug capability with a 1V8‑powered
MCU.
Features supported in STLINK-V3EC:
•
5 V power supplied by the USB Type-C
®
connector (CN5)
• USB 2.0 USB high-speed‑compatible interface
• JTAG and SWD protocols compatible with 1.7 to 3.6 V application voltage and 5 V tolerant input I/Os
• MIPI20 compatible connector (CN1)
• COM status LED (LD8), which blinks during communication with the PC
• Power status LED (LD9), which identifies the status of current output to the board
Table 6 describes the USB Type-C
®
connector pinout.
Table 6. USB Type-C
®
connecter (CN5) pinout
Pin Pin name Signal name STLINK-V3E STM32 pin Function
A4, A9, B4,
and B9
VBUS VBUS_STLK - VBUS power
A7 and B7 DM USB_DEV_HS _N PB14 DM
A6 and B6 DP USB_DEV_HS _P PB15 DP
A5 CC1 UCPD_CC1_C PC3 Pull-down by 5.1 kΩ
B5 CC2 UCPD_CC2_C PC4 Pull-down by 5.1 kΩ
A1, A12, B1,
and B12
GND GND GND GND
6.3.1 Drivers
The installation of drivers is not mandatory from Windows 10
®
but 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).
6.3.2 STLINK-V3EC firmware upgrade
STLINK-V3EC embeds a firmware upgrade (stsw-link007) mechanism through the USB-C
®
port. As 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), it is recommended to keep the
STLINK-V3EC firmware up to
date before starting to use the NUCLEO-H7S3L8 board. The latest version of this firmware is available from the
www.st.com website.
For detailed information about firmware upgrades, refer to the technical note Overview of ST-LINK derivatives
(TN1235).
Warning: ST-LINK SWO signal is exclusive with Zio D23 due to I/O multiplex on PB3. In this case, ST-
LINK SWO cannot work when Zio D23 (I2S3_SCK/SPI3_CK) is used.
UM3276
Hardware layout and configuration
UM3276 - Rev 1
page 12/40
To Next Page
Loading...
