Struct mnemos_d1_core::drivers::twi::I2c0

pub struct I2c0 {
    isr: &'static IsrData,
    twi: &'static RegisterBlock,
    int: (Interrupt, fn()),
}

A TWI mapped to the Raspberry Pi header’s I²C0 pins.

Fields

isr: &'static IsrData

twi: &'static RegisterBlock

int: (Interrupt, fn())

Which TWI does this TWI Engine use?

Implementations

impl I2c0

pub unsafe fn mq_pro(twi: TWI0, ccu: &mut Ccu, gpio: &mut GPIO) -> Self

Initialize a TWI for the MangoPi MQ Pro’s Pi header I²C0 pins. This configures TWI0 in TWI engine mode, with the MangoPi MQ Pro pin mappings.

Safety

• The TWI register block must not be concurrently written to.
• This function should be called only while running on a MangoPi MQ Pro board.

pub unsafe fn lichee_rv_dock(twi: TWI2, ccu: &mut Ccu, gpio: &mut GPIO) -> Self

Initialize a TWI for the Lichee RV Dock’s Pi header I²C0 pins. This configures TWI2 in TWI engine mode, with the Lichee RV pin mappings.

Safety

• The TWI register block must not be concurrently written to.
• This function should be called only while running on a Lichee RV board.

pub fn interrupt(&self) -> (Interrupt, fn())

Returns the interrupt and ISR for this TWI.

fn handle_twi0_interrupt()

Handle a TWI 0 interrupt on the I2C0 pins.

fn handle_twi1_interrupt()

Handle a TWI 1 interrupt on the I2C0 pins.

fn handle_twi2_interrupt()

Handle a TWI 2 interrupt on the I2C0 pins.

fn handle_twi3_interrupt()

Handle a TWI 3 interrupt on the I2C0 pins.

unsafe fn init(twi: &'static RegisterBlock, int: Interrupt, isr: fn()) -> Self

This assumes the GPIO pin mappings are already configured.

pub async fn register( self, kernel: &'static Kernel, queued: usize, ) -> Result<(), RegistrationError>

async fn run(self, rx: RequestStream<I2cService>)

async fn transaction(&self, addr: Addr, txn: KConsumer<Transfer>)