ST STM32F3DISCOVERY

Hardware layout and configuration UM1570
24/41 UM1570 Rev 7
PA5
TIM2_CH1_ETR,
G2_IO2, SPI1_SCK
30 - -
SCL/SPC
--------15 -
PA6
TIM16_CH1,
TIM3_CH1, G2_IO3,
TIM8_BKIN,
SPI1_MISO,
TIM1_BKIN,
AOP2_OUT,
COMP1_OUT
31 - -
SAO/SDO
--------18 -
PA7
TIM17_CH1,
TIM3_CH2, G2_IO4,
TIM8_CH1N,
SPI1_MOSI,
TIM1_CH1N,
COMP2_OUT
32 - -
SDA/SDI/SDO
--------17 -
PA8
MCO, I2C2_SMBAL,
I2S2_MCK,
TIM1_CH1,
USART1_CK,
COMP3_OUT,
TIM4_ETR
67------------45
PA9
G4_IO1, I2C2_SCL,
I2S3_MCK,
TIM1_CH2,
USART1_TX,
COMP5_OUT,
TIM15_BKIN,
TIM2_CH3
68------------44
Table 7. STM32F303VCT6 MCU pin description versus board function (continued)
(1)
MCU pin Board function
Main
function
Alternate function
LQFP100 pin number
VCP
LSM303DLHC or LSM303AGR
L3GD20 or I3G4250D
Push-button
LED
SWD
USB
OSC
Free I/O
Power supply
CN3
P1 P2