UM1570
Hardware and layout
Doc ID 023594 Rev 2
4.12 Extension
connectors
The male headers P1 and P2 can connect the STM32F3DISCOVERY to a standard
prototyping/wrapping board. STM32F303VCT6 GPI/Os are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
Table 6.
STM32F303VCT6 MCU pin description versus board function
MCU pin
Board function
Main
function
Alternate functions
LQ
FP100 pi
n
n
u
m.
LSM3
03DLHC
L3GD20
Pushb
u
tton
LED
SWD
USB
OSC
Free I/O
Po
w
e
r s
u
p
p
ly
CN
3
P1
P2
BOOT0
94
19
NRST
14
RESET
NRST
5
4
PA0
TIM2_CH1_ETR,
G1_IO1,
USART2_CTS,
COMP1_OUT,
TIM8_BKIN,
TM8_ETR
23
US
ER
12
PA1
TIM2_CH2, G1_IO2,
USART2_RTS,
TIM15_CH1N
24
9
PA2
TIM2_CH3, G1_IO3,
USART2_TX,
COMP2_OUT,
TIM15_CH1,
AOP1_OUT
25
14
PA3
TIM2_CH4, G1_IO4,
USART2_RX,
TIM15_CH2
26
11
PA4
TIM3_CH2, G2_IO1,
SPI1_NSS,
SPI3_NSS/I2S3_WS,
USART2_CK
29
16
PA5
TIM2_CH1_ETR,
G2_IO2, SPI1_SCK
30
SCL/SPC
15
