[−][src]Trait lpc82x_hal::prelude::_embedded_hal_blocking_i2c_Read

pub trait _embedded_hal_blocking_i2c_Read {
    type Error;
    fn read(
        &mut self, 
        address: u8, 
        buffer: &mut [u8]
    ) -> Result<(), Self::Error>;
}

Blocking read

Associated Types

type Error

Error type

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Required methods

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

Reads enough bytes from slave with address to fill buffer

I2C Events (contract)

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

Where

  • ST = start condition
  • SAD+R = slave address followed by bit 1 to indicate reading
  • SAK = slave acknowledge
  • Bi = ith byte of data
  • MAK = master acknowledge
  • NMAK = master no acknowledge
  • SP = stop condition
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Implementors

impl Read for I2C<Enabled>[src]

type Error = Void

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

Read from the I2C bus

Please refer to the embedded-hal documentation for details.

Limitations

Reading multiple bytes should work, but has not been tested.

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