ST STM32F3DISCOVERY

UM1570 Rev 7 13/41
UM1570 Hardware layout and configuration
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Figure 4. Board layout (bottom view)
Note: If SB12 is ON, SB17 and R33 must be OFF to provide the clock source from MCO correctly.
MSv41787V3
RoHS
SN
RESERVED
(SB2, SB4, SB6, and SB9)
DEFAULT
(SB1, SB3, SB5, and SB8)
BOOT0 (SB19)
SWO (SB10)
STM_RST (SB11)
NRST (SB7)
RX, TX (SB13)
RX, TX (SB15)
B1-USER (SB20)
B2-RESET (SB23)
USB USER (SB21)
USB USER (SB22)
MCO (SB12)
X3 crystal (SB14)
X3 crystal (SB16)
X1 crystal (SB17)
X1 crystal (SB18)