UM0488
Hardware layout and configuration
Doc ID 14220 Rev 5
7/48
2.1 Power
supply
The STM3210E-EVAL evaluation board is designed to be powered by 5V DC power supply
and to be protected by PolyZen U15 in the event of wrong power plug-in. It is possible to
configure the evaluation board to use any of following three sources for the power supply:
●
5V DC power adapter connected to CN17, the power jack on the board (PSU on silk
screen for power supply unit).
●
5V DC power with 500 mA limitation from CN14, the type-B USB connector (USB on
silkscreen).
●
5V DC power from both CN10 and CN11, the extension connector for daughterboard
(DTB for daughterboard on silkscreen).
The power supply is configured by setting the related jumpers JP13, JP12 and JP1 as
described in
Table 1
. The LED LD5 is lit when the STM3210E-EVAL evaluation board is
powered correctly.
Table 1.
Power related jumpers
Jumper
Description
JP13
JP13 is used to select one of the three possible power supply resources.
For power supply jack(CN17) to the STM3210E-EVAL only, JP13 is set
as shown (default setting).
For power supply from the daughterboard connectors(CN10 and CN11)
to STM3210E-EVAL only, JP13 is set as shown.
For power supply from USB (CN14) to STM3210E-EVAL only, JP13 is set
as shown.
For power supply from power supply jack(CN17) to both STM3210E-
EVAL and daughterboard connected on CN10 and CN11, JP13 is set as
shown (daughterboard must not have its own power supply
connected).
JP12
Enables consumption measurements of both VDD and VDDA.
Default setting: Fitted
JP1
V
bat
is connected to 3.3V power when JP1 is set as shown (default
setting).
V
bat
is connected to battery when JP1 is set as shown.
PS
U
DT
B
USB
PSU
DT
B
US
B
PS
U
DT
B
USB
PSU
DT
B
US
B
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