MCUs

An MCU in Lokey represents the microcontroller your firmware runs on.

At the type level, an MCU is defined by implementing the Mcu trait.

Responsibilities

An MCU type defines the setup of a microcontroller:

• Configuration type: The MCU-specific config type.
• Initialization: How to create and initialize the MCU.
• Background tasks: Optional MCU-level background work, typically running for the device lifetime.

MCU selection

The concrete MCU used by your firmware is chosen by the device type. In the Device implementation, the type Mcu = ... associated type binds that device to a specific Mcu implementation.

impl Device for MyDevice {
	type Mcu = Nrf;
	// ...
}

Example

use lokey::{Address, AnyState, Context, Device, Mcu, Transports};

pub struct MyMcu;

impl Mcu for MyMcu {
	type Config = (); // Define the MCU-specific configuration type

	async fn create(config: Self::Config, address: Address) -> Self {
		// Perform MCU initialization here
		Self
	}

	async fn run<D, T, S>(&'static self, context: Context<D, T, S>)
	where
		D: Device<Mcu = Self>,
		T: Transports<Self>,
		S: AnyState,
	{
		// Run MCU background tasks here (if needed)
	}
}