Figure 4. Board Layout (Bottom View) - ST STM32F3DISCOVERY User Manual

UM1570
RESERVED
(SB2, SB4, SB6, and SB9)
DEFAULT
(SB1, SB3, SB5, and SB8)
MCO (SB12)
X3 crystal (SB14)
X3 crystal (SB16)
X1 crystal (SB17)
X1 crystal (SB18)
BOOT0 (SB19)
USB USER (SB21)
USB USER (SB22)
Note: If SB12 is ON, SB17 and R33 must be OFF to provide the clock source from MCO correctly.

Figure 4. Board layout (bottom view)

RoHS
UM1570 Rev 7
Hardware layout and configuration
SWO (SB10)
SN
NRST (SB7)
STM_RST (SB11)
RX, TX (SB13)
RX, TX (SB15)
B1-USER (SB20)
B2-RESET (SB23)
MSv41787V3
13/41
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