Struct ftdi_embedded_hal::SpiDevice

pub struct SpiDevice<'a, Device: MpsseCmdExecutor> { /* private fields */ }

FTDI SPI device, a SPI bus with chip select pin.

This is created by calling FtHal::spi_device.

This is specific to embedded-hal version 1.

Implementations

impl<'a, Device, E> SpiDevice<'a, Device>where
    Device: MpsseCmdExecutor<Error = E>,
    E: Error,
    Error<E>: From<E>,

pub fn set_clock_polarity<P: Into<Polarity>>(&mut self, cpol: P)

Set the SPI clock polarity.

FTD2XX devices only supports SPI mode 0 and 2, clock phase is fixed.

Example

use eh1::spi::Polarity;
use ftdi_embedded_hal as hal;

let device = libftd2xx::Ft2232h::with_description("Dual RS232-HS A")?;
let hal = hal::FtHal::init_freq(device, 3_000_000)?;
let mut spi = hal.spi_device(3)?;
spi.set_clock_polarity(Polarity::IdleLow);

Trait Implementations

impl<'a, Device: Debug + MpsseCmdExecutor> Debug for SpiDevice<'a, Device>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, Device, E> ErrorType for SpiDevice<'a, Device>where
    Device: MpsseCmdExecutor<Error = E>,
    E: Error,
    Error<E>: From<E>,

type Error = Error<E>

Error type

impl<'a, Device, E> SpiDevice for SpiDevice<'a, Device>where
    Device: MpsseCmdExecutor<Error = E>,
    E: Error,
    Error<E>: From<E>,

type Bus = SpiDeviceBus<'a, Device>

SPI Bus type for this device.

fn transaction<R>(
    &mut self,
    f: impl FnOnce(&mut Self::Bus) -> Result<R, <Self::Bus as ErrorType>::Error>
) -> Result<R, Self::Error>

Perform a transaction against the device.

fn write<Word>(&mut self, buf: &[Word]) -> Result<(), Self::Error>where
    Word: Copy,
    Self::Bus: SpiBusWrite<Word>,

Do a write within a transaction.

fn read<Word>(&mut self, buf: &mut [Word]) -> Result<(), Self::Error>where
    Word: Copy,
    Self::Bus: SpiBusRead<Word>,

Do a read within a transaction.

fn transfer<Word>(
    &mut self,
    read: &mut [Word],
    write: &[Word]
) -> Result<(), Self::Error>where
    Word: Copy,
    Self::Bus: SpiBus<Word>,

Do a transfer within a transaction.

fn transfer_in_place<Word>(
    &mut self,
    buf: &mut [Word]
) -> Result<(), Self::Error>where
    Word: Copy,
    Self::Bus: SpiBus<Word>,

Do an in-place transfer within a transaction.