Push Buttons; Idd Measurement; Jumper Configuration; Table 9. Jumper Configuration - ST STM32 Nucleo-64 User Manual

Hardware layout and configuration
6.11

Push buttons

• B1 USER: User and Wake-Up button connected to the I/O PC13 (Pin 3) of the STM32
Microcontroller.
•
B2 RESET: Pushbutton connected to NRST is used to RESET the STM32
Microcontroller.
The blue and black plastic hats placed on these pushbuttons are removable if necessary
when a shield or an application board is plugged on top of Nucleo. This avoids pressure on
the buttons and consequently a possible permanent Target MCU RESET.
6.12 I measurement
DD
Jumper JP3, labeled IDD, allows the consumption of STM32 Microcontroller to be measured
by removing the jumper and connecting an ammeter.
•
Jumper on: STM32 Microcontroller is powered (default).
• Jumper off: an ammeter must be connected to measure STM32 microcontroller
current. If there is no ammeter, STM32 microcontroller is not powered.
6.13

Jumper configuration

The default jumper positions are showed in
describes the other available jumper settings.
Jumper /
CN
CN4
JP4/JP5
JP2
JP1
JP3
1. Default jumper state is shown in bold.
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Table 9. Jumper configuration

Function
ON [1-2] ON [3-4]
T_SWCLK
T_SWDIO
OFF [1-2] OFF [3-4]
GND ON
ON [1-2]
ON [3-4]
5 V Power
ON [5-6]
selection
ON [7-8]
OFF
ON [1-2]
STLK Reset
OFF
ON [1-2]
I measurement
DD
OFF
UM2324 Rev 2
Table 4: Default jumper settings.
(1)
State
ST-LINK/V2-1 enable for on-board
MCU debugger
ST-LINK/V2-1 functions enabled for
external CN2 connector
GND probe
5 V from ST-LINK
5 V from VIN 7 V to 12 V
5 V from E5V
5 V from USB_CHG
No 5 V power
STLK Reset
No STLK Reset
VDD = 3.3 V
To connect external source (ULPBench
probe as an example)
UM2324
Table 9
Comment