Trait trellis_m4::prelude::_embedded_hal_serial_Read

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pub trait _embedded_hal_serial_Read<Word> {
    type Error;
    fn read(&mut self) -> Result<Word, Error<Self::Error>>;
}

Expand description

Read half of a serial interface

Some serial interfaces support different data sizes (8 bits, 9 bits, etc.); This can be encoded in this trait via the Word type parameter.

Associated Types

Required methods

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

Reads a single word from the serial interface

Implementors

source

impl<C, D> Read<<C as AnyConfig>::Word> for Uart<C, D> where
    C: ValidConfig,
    D: Receive,
    u32: AsPrimitive<<C as AnyConfig>::Word>,

impl<P, L> Read<<L as Length>::Word> for Spi<Config<P, Slave, L>, Rx> where
    P: ValidPads,
    L: Length,
    Config<P, Slave, L>: ValidConfig,
    <L as Length>::Word: PrimInt,
    u32: AsPrimitive<<L as Length>::Word>,

Implement serial::Read for Rx Spi structs in Slave OpMode

serial::Read is only implemented for Spi structs with Rx Capability. In Slave OpMode, Read does not have to initiate transactions, so it does not have to store any internal state. It only has to wait on RXC.

type Error = Error

source

impl<P, M, L> Read<<L as Length>::Word> for Spi<Config<P, M, L>, Rx> where
    P: ValidPads,
    M: MasterMode,
    L: Length,
    Config<P, M, L>: ValidConfig,
    <L as Length>::Word: PrimInt,
    u32: AsPrimitive<<L as Length>::Word>,

Implement serial::Read for Rx Spi structs in a MasterMode

serial::Read is only implemented for Spi structs with Rx Capability. In a MasterMode, Read has to initiate transactions, so it keeps track of the transaction state. If a transaction is in progress, it will wait on RXC. If not, it will wait on DRE, and then send 0.