Trait bl602_hal::prelude::_embedded_hal_spi_FullDuplex

pub trait _embedded_hal_spi_FullDuplex<Word> {
    type Error;
    fn try_read(&mut self) -> Result<Word, Error<Self::Error>>;
    fn try_send(&mut self, word: Word) -> Result<(), Error<Self::Error>>;
}

Full duplex (master mode)

Notes

• It's the task of the user of this interface to manage the slave select lines

• Due to how full duplex SPI works each try_read call must be preceded by a try_send call.

• try_read calls only return the data received with the last try_send call. Previously received data is discarded

• Data is only guaranteed to be clocked out when the try_read call succeeds. The slave select line shouldn't be released before that.

• Some SPIs can work with 8-bit and 16-bit words. You can overload this trait with different Word types to allow operation in both modes.

Associated Types

type Error

An enumeration of SPI errors

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Required methods

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

Reads the word stored in the shift register

NOTE A word must be sent to the slave before attempting to call this method.

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

Sends a word to the slave

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Implementors

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