Struct I2C 

pub struct I2C<const CLK_HZ: u32> { /* private fields */ }

Implementation of the I2C interface.

Implementations

impl<const CLK_HZ: u32> I2C<CLK_HZ>

pub fn new(bus: I2CBusId, flags: Option<u32>) -> Self

Creates a new I2C instance.

pub fn blocking_write_read( &mut self, address: I2CAddr, write: &[u8], read: &mut [u8], ) -> Result<(), I2CError>

Writes bytes and reads bytes over the I2C bus.

Examples

let mut buffer = [0; 4];
i2c.blocking_write_read(I2CAddr::SevenBitAddress(0x48), &[0x00, 0x01], &mut buffer)?;
assert_eq!(buffer, [0x02, 0x03, 0x04, 0x05]);

Master: ST SAD+W     O0     O1     ... OM     SR SAD+R        MAK    MAK ...    NMAK SP
Slave:           SAK    SAK    SAK ...    SAK          SAK I0     I1     ... IN

pub fn blocking_write( &mut self, address: I2CAddr, write: &[u8], ) -> Result<(), I2CError>

Writes bytes over the I2C bus.

Examples

i2c.blocking_write(I2CAddr::SevenBitAddress(0x48), &[0x00, 0x01])?;

Master: ST SAD+W     B0     B1     ... BN     SP
Slave:           SAK    SAK    SAK ...    SAK

pub fn blocking_read( &mut self, address: I2CAddr, read: &mut [u8], ) -> Result<(), I2CError>

Reads bytes over the I2C bus.

Examples

let mut buffer = [0; 4];
i2c.blocking_read(I2CAddr::SevenBitAddress(0x48), &mut buffer)?;
assert_eq!(buffer, [0x02, 0x03, 0x04, 0x05]);

Master: ST SAD+R        MAK    MAK ...    NMAK SP
Slave:           SAK B0     B1     ... BN

Trait Implementations

impl<const CLK_HZ: u32> Clone for I2C<CLK_HZ>

fn clone(&self) -> I2C<CLK_HZ>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<const CLK_HZ: u32> Debug for I2C<CLK_HZ>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<const CLK_HZ: u32> Drop for I2C<CLK_HZ>

fn drop(&mut self)

Executes the destructor for this type.

impl<const CLK_HZ: u32> ErrorType for I2C<CLK_HZ>

type Error = I2CError

Error type

impl<const CLK_HZ: u32> I2c<u16> for I2C<CLK_HZ>

fn read(&mut self, address: u16, read: &mut [u8]) -> Result<(), Self::Error>

Reads enough bytes from slave with address to fill read.

fn write(&mut self, address: u16, write: &[u8]) -> Result<(), Self::Error>

Writes bytes to slave with address address.

fn write_read( &mut self, address: u16, write: &[u8], read: &mut [u8], ) -> Result<(), Self::Error>

Writes bytes to slave with address address and then reads enough bytes to fill read in a single transaction.

fn transaction( &mut self, address: u16, operations: &mut [Operation<'_>], ) -> Result<(), Self::Error>

Execute the provided operations on the I2C bus.

impl<const CLK_HZ: u32> I2c for I2C<CLK_HZ>

fn read(&mut self, address: u8, read: &mut [u8]) -> Result<(), Self::Error>

Reads enough bytes from slave with address to fill read.

fn write(&mut self, address: u8, write: &[u8]) -> Result<(), Self::Error>

Writes bytes to slave with address address.

fn write_read( &mut self, address: u8, write: &[u8], read: &mut [u8], ) -> Result<(), Self::Error>

Writes bytes to slave with address address and then reads enough bytes to fill read in a single transaction.

fn transaction( &mut self, address: u8, operations: &mut [Operation<'_>], ) -> Result<(), Self::Error>

Execute the provided operations on the I2C bus.