Module imxrt_hal::i2c

I2C support

Example

use imxrt_hal;
use imxrt_hal::i2c::ClockSpeed;
use embedded_hal::blocking::i2c::WriteRead;

let mut peripherals = imxrt_hal::Peripherals::take().unwrap();

let (_, _, i2c3_builder, _) = peripherals.i2c.clock(
    &mut peripherals.ccm.handle,
    imxrt_hal::ccm::i2c::ClockSelect::OSC, // 24MHz clock...
    imxrt_hal::ccm::i2c::PrescalarSelect::DIVIDE_3, // Divide by 3
);

let mut i2c3 = i2c3_builder.build(
    peripherals.iomuxc.ad_b1.p07,
    peripherals.iomuxc.ad_b1.p06,
);

i2c3.set_bus_idle_timeout(core::time::Duration::from_micros(200)).unwrap();
i2c3.set_pin_low_timeout(core::time::Duration::from_millis(1)).unwrap();
i2c3.set_clock_speed(ClockSpeed::KHz400).unwrap();

let mut input = [0; 3];
let output = [0x74];

i2c3.write_read(MY_SLAVE_ADDRESS, &output, &mut input).unwrap();

Structs

Builder

An I2C builder that can build and I2C peripheral

BusIdleTimeoutError

Indicates an error when computing the parameters that control the bus idle timeout

ClockSpeedError

Indicates an error when computing the parameters that control the clock speed.

I2C

An I2C master

PinLowTimeoutError

Indicates an error when computing the parameters that control the pin low timeout

Unclocked

Unclocked I2C modules

Enums

ClockSpeed

I2C Clock speed

Error