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