STM32 development board

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pinout

IO voltage

The "VCCIO" voltage can be set with the jumper "5V/3.3V"

Note that this is "power for the slave device", it does not imply that the outgoing signals will have a 5V level (that's always 3.3V), or that the pins are 5V tolerant.

UART

(not all pin numbers are typed out fully).

  • 1 GND
  • PA10 RX
  • PA9 TX
  • 4 VCCIO

I2C1

(not all pin numbers are typed out fully).

  • 1 GND
  • PB7 SDA
  • PB6 SCL
  • 4 VCCIO


I2C2

(not all pin numbers are typed out fully).

  • 1 GND
  • PB11 SDA
  • PB10 SCL
  • 4 VCCIO

SPI

See elsewhere on this site.

SV2

General purpose IO connector. (not all pin numbers are typed out fully).

  • 1 GND
  • 2 GND
  • 3 PA0
  • PA1
  • PA2
  • PA3
  • PA4
  • PA5
  • PA6
  • PA7
  • PA8
  • PA15
  • PB0
  • PB1
  • PD2
  • PB5
  • PB8
  • PB9
  • 19 VCCIO
  • 20 VCCIO


SV2

General purpose IO connector.

  • 1 GND
  • 2 GND
  • 3 PC0
  • 4 PC1
  • 5 PC2
  • 6 PC3
  • 7 PC4
  • 8 PC5
  • 9 PC6
  • 10 PC7
  • 11 PC8
  • 12 PC9
  • 13 PC10
  • 14 PC11
  • 15 PC12
  • 16 PC13
  • 17 PC14
  • 18 PC15
  • 19 VCCIO
  • 20 VCCIO

SWD

  • 1 VCC 3.3V
  • 2 SWCK PA14
  • 3 GND
  • 4 SWDAT PA13
  • 5 NRST
  • 6 BOOT0