ST NUCLEO-WL55JC STM32WL User Manual page 7

Jumper
JP4
JP5
JP6
JP7
JP8
JP9
1. Default jumper state is shown in bold.
UM2592 - Rev 1
Definition
5 V power-source selection
I_SYS
STLK-RST
5V_PWR
Signals between STLINK-V3E and
MCU target
I_APP
(1)
Position
[9-10] (optional)
OFF (SB27 ON)
OFF
ON
[1-2]
[3-4]
[5-6]
[7-8]
[9-10]
[11-12]
OFF (SB32 ON)
UM2592
Getting started
(1)
Comment
STD_ALONE_5V
For STM32WL current
measurements (Digital part)
STLINK-V3E reset
5 V power-source selection
T_SWDIO connected to ST-
LINK
T_SWCLK connected to ST-
LINK
T_SWO connected to ST-LINK
STLK_VCP_TX connected to
ST-LINK
T_NRST connected to ST-LINK
STLK_VCP_TX connected to
ST-LINK
For U3 and U4 DC switches
current measurement
page 7/49