Bare metal APIs

Mbed OS bare metal supports the following APIs:

Analog I/O

• AnalogIn - Read the voltage applied to an analog input pin.
• AnalogOut - Set the voltage of an analog output pin.

Digital I/O

• DigitalIn - Configure and control a digital input pin.

• DigitalOut - Configure and control a digital output pin.

• DigitalInOut - Bidirectional digital pins.

• BusIn - Flexible way to read multiple DigitalIn pins as one value.

• BusOut - Flexible way to write multiple DigitalOut pins as one value.

• BusInOut - Flexible way to read and write multiple DigitalInOut pins as one value.

• PortIn - Fast way to read multiple DigitalIn pins as one value.

• PortOut - Fast way to write multiple DigitalOut pins as one value.

• PortInOut - Fast way to read and write multiple DigitalInOut pins as one value.

• PwmOut - Pulse-width modulated output.

• InterruptIn - Trigger an event when a digital input pin changes.

Timers

• Timer - Create, start, stop and read a timer.

• Timeout - Call a function after a specified delay.

• Ticker - Repeatedly call a function.

• Wait - Wait for a specified time.

• Time - Get and set the realtime clock.

Digital Interfaces

• Serial - Serial/UART bus.

• SPI - SPI bus master.

• SPISlave - SPI bus slave.

• I2C - I²C bus master.

• I2CSlave - I²C bus slave.

• CAN - Controller-area network bus.