Struct itsybitsy_m4::I2CMaster2 [−][src]
pub struct I2CMaster2<P0, P1> where
P0: CompatiblePad<Sercom = SERCOM2, PadNum = Pad0>,
P1: CompatiblePad<Sercom = SERCOM2, PadNum = Pad1>, { /* fields omitted */ }Expand description
Represents the Sercom instance configured to act as an I2C Master. The embedded_hal blocking I2C traits are implemented by this instance.
Implementations
impl<P0, P1> I2CMaster2<P0, P1> where
P1: CompatiblePad<Sercom = SERCOM2, PadNum = Pad1>,
P0: CompatiblePad<Sercom = SERCOM2, PadNum = Pad0>,
impl<P0, P1> I2CMaster2<P0, P1> where
P1: CompatiblePad<Sercom = SERCOM2, PadNum = Pad1>,
P0: CompatiblePad<Sercom = SERCOM2, PadNum = Pad0>,
pub fn new<F>(
clock: &Sercom2CoreClock,
freq: F,
sercom: SERCOM2,
mclk: &mut MCLK,
sda: P0,
scl: P1
) -> I2CMaster2<P0, P1> where
F: Into<Hertz>,
pub fn new<F>(
clock: &Sercom2CoreClock,
freq: F,
sercom: SERCOM2,
mclk: &mut MCLK,
sda: P0,
scl: P1
) -> I2CMaster2<P0, P1> where
F: Into<Hertz>,
Configures the sercom instance to work as an I2C Master.
The clock is obtained via the GenericClockGenerator type.
freq specifies the bus frequency to use for I2C communication.
There are typically a handful of values that tend to be supported;
standard mode is 100.khz(), full speed mode is 400.khz().
The hardware in the atsamd device supports fast mode at 1.mhz()
and fast mode, but there may be additional hardware configuration
missing from the current software implementation that prevents that
from working as-written today.
let mut i2c = I2CMaster3::new(
&clocks.sercom3_core(&gclk0).unwrap(),
400.khz(),
p.device.SERCOM3,
&mut p.device.MCLK,
// Metro M0 express has I2C on pins PA22, PA23
pins.pa22.into_pad(&mut pins.port),
pins.pa23.into_pad(&mut pins.port),
);