Trait esp32_hal::prelude::_embedded_hal_blocking_i2c_Read

pub trait _embedded_hal_blocking_i2c_Read<A = u8>where
    A: AddressMode,{
    type Error;

    // Required method
    fn read(&mut self, address: A, buffer: &mut [u8]) -> Result<(), Self::Error>;
}

Blocking read

Required 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

impl<T> Read<u8> for I2C<'_, T>where T: Instance,

type Error = Error