UM2191
System
setup
DocID030479 Rev 2
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3
System setup
For each configuration, the P-NUCLEO-USB002 expansion board must be stacked on the
NUCLEO-F072RB board through the ST morpho connector, paying attention to the
mounting direction and alignment of the two boards, as per the following figure.
Figure 33: P-NUCLEO-USB002 mounting orientation
3.1
Source power role configuration
3.1.1
Using the NUCLEO-F072 on-board voltage regulator
When the P-NUCLEO-USB002 kit is connected to a PC or a standard USB power supply
via a USB Type-A to Mini-B cable plugged to CN1 connector, the on-board NUCLEO-
F072RB voltage regulator supplies the entire system and provides (5 V) V
BUS
.
To deliver the V
BUS
on the selected port from the NUCLEO-F072RB USB PWR voltage
(CN1 connector):
on NUCLEO-F072RB board:
JP1 open
JP5 (PWR) closed on U5V (fitting pins 1-2)
JP6 (IDD) closed
on P-NUCLEO-USB002 expansion board:
JP400 and JP401 (relative to PORT_0 or PORT_1) closed
3.1.2
Using an external power supply
If an external power board is connected to the P-NUCLEO-USB002 expansion board
power connector CN4, the provider can offer different V
BUS
voltage profiles. The Provider
configuration is: