Peripheral Selection
- 51 GPIOs
- 2 SPI, 2 I2C, 4 USART, CAN, USB, HDMI-CEC
- 16 Channel 12-bit ADC
- 18 Capacitive Sense Channels
- 2 Analog Comparators
- Serial Wire Debug (SWD)
Most I/O pins on the STM32F072 are also used for peripheral functions such as SPI, I2C, USART, CAN, USB, CEC, SWD, etc. To increase flexibility, most of the I/O will be routed to the carrier board. Since the peripherals and I/O pins are muxed internally, the controller board can provide either function to the carrier board without special requirements.
Important notes
- PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIOs PC13 to PC15 in output mode is limited: The speed should not exceed 2 MHz with a maximum load of 30 pF. These GPIOs must not be used as current sources (e.g. to drive an LED).