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UM1658 Hardware and layout

38

PA15

SPI1_NSS,

USART1_RX,

USART2_RX,

EVENTOUT

50

16

PB0

TIM3_CH3,

TIM1_CH2N,

EVENTOUT

26

27

PB1

TIM3_CH4,

TIM14_CH1,

TIM1_CH3N

27

28

PB2 - 28

29

PB3

SPI1_SCK,

EVENTOUT

55

SWO

611

PB4

SPI1_MISO,

TIM3_CH1,

EVENTOUT

56 10

PB5

SPI1_MOSI,

I2C1_SMBA,

TIM16_BKIN,

TIM3_CH2

57

9

PB6

I2C1_SCL,

USART1_TX,

TIM16_CH1N

58

8

PB7

I2C1_SDA,

USART1_RX,

TIM17_CH1N

59

7

PB8

I2C1_SCL,

TIM16_CH1

61

4

PB9

I2C1_SDA,

IR_OUT,

TIM17_CH1,

EVENTOUT

62

3

PB10

I2C1_SCL,

I2C2_SCL

29

30

Table 5. MCU pin description versus board function (continued)

MCU pin Board function

Main

function

Alternate

functions

LQFP64

Push button

LED

SWD

OSC

Free I/O

Power supply

CN3

P1

P2