[−][src]Struct nrf52840_hal::twim::Twim
Interface to a TWIM instance
This is a very basic interface that comes with the following limitation:
The TWIM instances share the same address space with instances of SPIM,
SPIS, SPI, TWIS, and TWI. For example, TWIM0 conflicts with SPIM0, SPIS0,
etc.; TWIM1 conflicts with SPIM1, SPIS1, etc. You need to make sure that
conflicting instances are disabled before using Twim
. Please refer to the
product specification for more information (section 15.2 for nRF52832,
section 6.1.2 for nRF52840).
Methods
impl<T> Twim<T> where
T: TwimExt,
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T: TwimExt,
pub fn new(twim: T, pins: Pins, frequency: FREQUENCYW) -> Twim<T>
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pub fn write(&mut self, address: u8, buffer: &[u8]) -> Result<(), Error>
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Write to an I2C slave
The buffer must have a length of at most 255 bytes on the nRF52832 and at most 65535 bytes on the nRF52840.
pub fn read(&mut self, address: u8, buffer: &mut [u8]) -> Result<(), Error>
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Read from an I2C slave
The buffer must have a length of at most 255 bytes on the nRF52832 and at most 65535 bytes on the nRF52840.
pub fn write_then_read(
&mut self,
address: u8,
wr_buffer: &[u8],
rd_buffer: &mut [u8]
) -> Result<(), Error>
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&mut self,
address: u8,
wr_buffer: &[u8],
rd_buffer: &mut [u8]
) -> Result<(), Error>
Write data to an I2C slave, then read data from the slave without triggering a stop condition between the two
The buffer must have a length of at most 255 bytes.
pub fn free(self) -> T
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Return the raw interface to the underlying TWIM peripheral
Trait Implementations
impl<T> WriteRead for Twim<T> where
T: TwimExt,
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T: TwimExt,
type Error = Error
Error type
fn write_read(
&mut self,
addr: u8,
bytes: &'w [u8],
buffer: &'w mut [u8]
) -> Result<(), Error>
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&mut self,
addr: u8,
bytes: &'w [u8],
buffer: &'w mut [u8]
) -> Result<(), Error>
impl<T> Read for Twim<T> where
T: TwimExt,
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T: TwimExt,
type Error = Error
Error type
fn read(&mut self, addr: u8, bytes: &'w mut [u8]) -> Result<(), Error>
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impl<T> Write for Twim<T> where
T: TwimExt,
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T: TwimExt,
Implementation of embedded_hal::blocking::i2c Traits
Auto Trait Implementations
Blanket Implementations
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Same for T
type Output = T
Should always be Self