Table 5. Jumper Configuration - ST STM32U5 User Manual

Table 5 explains the other jumper settings and configurations.
Jumper
JP1
JP2
JP4
JP5
JP6
JP7
JP8
1. The default configuration is in bold.
2. This is recommended to have only one jumper configuration.
UM2861 - Rev 5
Table 5. Jumper configuration
Definition
STLK_RST
T_NRST
VDD voltage selection
I measurement
DD
(2)
5V Power selection
UCPD_DBCC1
UCPD_DBCC2
(1)
Setting
Use to reset the STLINK-V3E MCU
ON
when an external debug probe is used.
STLINK-V3E is selected as the default
OFF
debugger.
STLINK-V3E can reset the target
ON
MCU.
STLINK-V3E cannot reset the target
OFF MCU. Configuration to use when an
external debug probe is used.
[1-2] VDD voltage selection is 3V3
[2-3] VDD voltage selection is 1V8
No internal VDD power supply
OFF
(External 3.3 or 1.8 V needed)
MCU is powered by the on‑board
ON
power supplies.
Use an ammeter to measure the
VDD_MCU power consumption, or
connect a 3.3 or 1.8 V external
OFF
source on pin 2 (STLINK-PWR
tools with STM32CubeMonitor-Power or
ULPBench probe as exemple).
[1-2] 5V source from STLINK-V3E
[3-4]
5V source from ARDUINO
[5-6] 5V source from 5V_EXT
[7-8]
5V source from USB Type-C
5V source from USB_CHGR.
[9-10]
From STLINK-V3E USB connector
(CN1) without overcurrent protection.
NO 5V power source, configuration
OFF
when external 3V3 is used.
UCPD_DBCC1 NOT connected to
OFF
GND
UCPD_DBCC1 connected to GND (For
ON
debug purpose)
UCPD_DBCC2 NOT connected to
OFF
GND
UCPD_DBCC2 connected to GND (For
ON
debug purpose)
UM2861
Default board configuration
Comment
®
VIN 7-12V
®
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