Trait grand_central_m4::prelude::_embedded_hal_spi_FullDuplex [−][src]
pub trait _embedded_hal_spi_FullDuplex<Word> {
type Error;
fn read(&mut self) -> Result<Word, Error<Self::Error>>;
fn send(&mut self, word: Word) -> Result<(), Error<Self::Error>>;
}
Expand description
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
read
call must be preceded by asend
call. -
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
Required methods
Reads the word stored in the shift register
NOTE A word must be sent to the slave before attempting to call this method.
Implementors
Implement FullDuplex
for short Spi
transaction Length
s
[FullDuplex
is only implemented when Pads
is both Tx
and Rx
,
the OpMode
is a MasterMode
, and the transaction Length
is <= 4
bytes. When the Length
is <= 4
, the Word
is a primitive
integer, with a size that depends on the Length
(u8
, u16
or u32
).