Power Supply; Table 2. Power Related Jumpers - STMicroelectronics STM32439I-EVAL User Manual

UM1668
2.2

Power supply

The STM32439I-EVAL evaluation board is designed to be powered by a 5 V DC power
supply and is protected by PolyZen from a wrong power plug-in event. It is possible to
configure the evaluation board to use any of following six sources for the power supply:
•
5 V DC power adapter connected to CN18, the power jack on the board (Power Supply
Unit on silk screen of JP12(E5V)).
•
5 V DC power with 500 mA limitation from CN21, the USB type B connector of ST-
LINK/V2 (USB 5 V power source on silkscreen of JP12(STlk)).
•
5 V DC power with 500 mA limitation from CN9, the USB OTG2 HS Micro-AB
connector (USB 5V power source on silkscreen of JP12 (HS)).
•
5 V DC power with 500 mA limitation from CN14, the USB OTG1 FS Micro-AB
connector (USB 5V power source on silkscreen of JP12 (FS1)).
•
5 V DC power with 500 mA limitation from CN15, the USB OTG2 FS Micro-AB
connector (USB 5 V power source on silkscreen of JP12 (FS2)).
•
5 V DC power from CN6 & CN7, the extension connectors for daughterboard
(daughterboard power source on silkscreen of JP12 (D5V)).
The power supply is configured by setting the related jumpers JP2, JP8 and JP12 as
described in
Jumper
JP2
JP8
JP12(continued
on next page)
Table 2.

Table 2. Power related jumpers

Description
JP2 is used to measure MCU current consumption manually by multimeter.
Default setting: Fitted
Vbat is connected to +3.3V when JP8 is set as shown to the right:
(Default setting)
Vbat is connected to battery when JP8 is set as shown to the right:
JP12 is used to select one of the six possible power supply resources.
For power supply from USB connector of ST-LINK/V2 (CN21) to
STM32439I-EVAL
(Default setting)
For power supply jack (CN18) to the
JP12 is set as shown to the right:
For power supply from the daughterboard connectors (CN6 &
STM32439I-EVAL
CN7) to
right:
DocID025151 Rev 2
Hardware layout and configuration
only, JP12 is set as shown to the right:
STM32439I-EVAL
only, JP12 is set as shown to the
1 2 3
1 2 3
only,
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