Struct Master 

pub struct Master<I: Instance, State, ModeState> { /* private fields */ }

API for the I2C master mode

You can get access to this struct through the I2C struct.

This struct has two type parameters that track its state:

• State tracks whether the I2C instance is enabled.
• ModeState tracks whether the master mode is enabled.

embedded-hal traits

• embedded_hal::blocking::i2c::Read for blocking reads
• embedded_hal::blocking::i2c::Write for blocking writes

Implementations

impl<I, C> Master<I, Enabled<PhantomData<C>>, Enabled>

where I: Instance,

pub fn write_all( self, address: u8, buffer: &'static [u8], channel: Channel<I::MstChannel, Enabled>, ) -> Result<Transfer<Ready, I::MstChannel, &'static [u8], Self>, Error>

Writes the provided buffer using DMA

Panics

Panics, if the length of buffer is 0 or larger than 1024.

pub fn read_all( self, address: u8, buffer: &'static mut [u8], channel: Channel<I::MstChannel, Enabled>, ) -> Result<Transfer<Ready, I::MstChannel, Self, &'static mut [u8]>, Error>

Reads until the provided buffer is full, using DMA

Panics

Panics, if the length of buffer is 0 or larger than 1024.

Trait Implementations

impl<I, State, ModeState> Debug for Master<I, State, ModeState>

where I: Instance,

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

Formats the value using the given formatter.

impl<I, C> Dest for Master<I, Enabled<PhantomData<C>>, Enabled>

where I: Instance,

type Error = Error

The error that can occur while finishing the transfer

fn is_valid(&self) -> bool

Indicates whether the destination is valid

fn is_full(&self) -> bool

Indicates whether the destination is full

fn increment(&self) -> DSTINC_A

The address increment during the transfer

fn transfer_count(&self) -> Option<u16>

The transfer count, as defined by XFERCFG.XFERCOUNT

fn end_addr(&mut self) -> *mut u8

The end address

fn finish(&mut self) -> Result<(), Self::Error>

Tell the destination to finish the transfer

impl<I, C> Source for Master<I, Enabled<PhantomData<C>>, Enabled>

where I: Instance,

type Error = Error

The error that can occur while finishing the transfer

fn is_valid(&self) -> bool

Indicates whether the source is valid

fn is_empty(&self) -> bool

Indicates whether the source is empty

fn increment(&self) -> SRCINC_A

The address increment during the transfer

fn transfer_count(&self) -> Option<u16>

The transfer count, as defined by XFERCFG.XFERCOUNT

fn end_addr(&self) -> *const u8

The end address

fn finish(&mut self) -> Result<(), Self::Error>

Tell the source to finish the transfer

impl<I, C> Read for Master<I, Enabled<PhantomData<C>>, Enabled>

where I: Instance,

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

Read from the I2C bus

Please refer to the embedded-hal documentation for details.

type Error = Error

Error type

impl<I, C> Write for Master<I, Enabled<PhantomData<C>>, Enabled>

where I: Instance,

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

Write to the I2C bus

Please refer to the embedded-hal documentation for details.

type Error = Error

Error type