Jumpers And Solder Bridges; Jumpers; Table 21. Jumper Configuration - STMicroelectronics B-G474E-DPOW1 Manual

15

Jumpers and solder bridges

15.1

Jumpers

The jumper functions and their default status are described in
Reference
JP1
JP4
JP5
JP6 (2)
(2)
JP7
1. The default setting is in bold.
2. JP6 and JP7 must not be ON together
UM2577 - Rev 2
Table 21.
(1)
Jumper Function
[1-2] VIN connected to USBPD
OFF VIN free for use
[2-3] VIN connected to GND
ON 3V3 connected to VDD
3V3 not connected to
OFF
VDD
5 V is supplied from USB
STLK
STLK CN3
5 V is supplied from USB
CHGR
STLK CN3
5 V is supplied from
LTC3114-1 5 V converter
(Power source connected
USBC
to USB Type-C
connector)
5 V is supplied from 5V_I
E5V pin of CN9 extension
connector
OFF STLINK-V3E Active state
ON STLINK-V3E Reset state
ON
T_NRST (PA6)
OFF
Table 21
Jumper configuration
Connect buck‑boost VIN to the V
®
C when the double switch is activated
Enable the use of an external power supply as
buck‑boost VIN input voltage
Deactivate buck‑boost function, VIN not accessible
3.3 V powers VDD. It is impossible to measure the
current.
VDD is not powered. Add an ammeter to measure the
current.
• 5 V (+/- 5 %),
• 700 mA embedded overcurrent protection
• Up to 500 mA capable
• 5 V (+/- 5 %)
• No embedded current protection
• Up to 1.5 A current recommended
• 5 V (+/- 3 %)
• Embedded selectable current protection (Up to
950 mA on 5 V, up to 1.5 A on USB Type-C
V )
BUS
®
CN2
• USB Type-C
15 V
• 5 V (+/- 5 %)
• No embedded current protection
• Up to 1.5 A current recommended
STLINK-V3E detects USBSTLK plug on CN3
Set STLINK-V3E in Reset mode (All input/outputs in
high impedance)
STLINK-V3E output reset connected to T_NRST of
STM32
STLINK-V3E output reset isolated from T_NRST of
STM32
UM2577
Jumpers and solder bridges
Comment
from USB Type-
BUS
®
®
V nominal voltage from 5 V to
BUS
page 40/54