Embedded Stlink-V3Ec; Description - ST STM32U5 Nucleo-64 User Manual

6.3

Embedded STLINK-V3EC

The chapter below gives some information about the implementation of the STLINK-V3EC on this Nucleo-64
board. For details information about ST-LINK capabilities, LED management, driver, and firmware for this
STLINK-V3EC, refer to the technical note Overview of ST-LINK derivatives (TN1235).
For information about the debugging and programming features of STLINK-V3EC, refer to the user manual
STLINK-V3SET debugger/programmer for STM8 and STM32 (UM2448).
6.3.1

Description

There are two different ways to program and debug the onboard STM32 MCU:
• Using the embedded STLINK-V3EC
• Using an external debug tool connected to the STDC14/MIPI10 connector (CN4)
Refer to Table 5. Jumper configuration
The STLINK-V3EC facility for debugging and flashing is integrated into the STM32 Nucleo-64.
Features supported in STLINK-V3EC:
• 5 V/500m A power supplied by the USB Type-C
• USB 2.0 high-speed-compatible interface
• JTAG and Serial Wire Debug (SWD) with Serial Wire Viewer (SWV)
• Virtual COM port (VCP)
• 1.7 to 3.6 V application voltage
• COM status LED which blinks during communication with the PC
• Power status LED which gives information about STLINK-V3EC target power
®
• USB-C
Two tricolor LEDs (green, orange, and red) provide information about the STLINK-V3EC communication status
(LD1) and STLINK-V3EC power status (LD4). For details information about these LEDs, refer to the technical
note Overview of ST-LINK derivatives (TN1235).
Two level shifters are used on VCP and SWD interfaces to offer a debug capability with MCU powered by a 1.8 V
power source. The level shifters are used for signals from Target MCU (1.8/3.3 V) to STLINK-V3EC (3.3 V).
One of the level shifters is enabled with a jumper called debugger selection (JP1) to isolate the output I/Os from
STLINK-V3EC when an external debug probe is used.
The configuration of this jumper (JP1) to use an external debug probe is explained in
configuration.
UM3062 - Rev 1
to switch between STLINK-V3EC and STDC14 configuration.
over‑voltage protection (U5) with current limitation
®
connector (CN1)
UM3062
Embedded STLINK-V3EC
Table 5. Jumper
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