Trait embedded_hal::blocking::i2c::Read

source · [−]

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

Expand description

Blocking read

Associated Types

type Error

Error type

Required methods

fn read(&mut self, address: A, 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

Implementors