Struct nrf52::spi::SPIM

pub struct SPIM {
    registers: *const SPIM,
    client: Cell<Option<&'static SpiMasterClient>>,
    chip_select: Cell<Option<&'static Pin>>,
    initialized: Cell<bool>,
    busy: Cell<bool>,
    tx_buf: TakeCell<'static, [u8]>,
    rx_buf: TakeCell<'static, [u8]>,
    transfer_len: Cell<usize>,
}

A SPI master device.

A SPIM instance wraps a registers::spim::SPIM together with addition data necessary to implement an asynchronous interface.

Fields

registers: *const SPIM

client: Cell<Option<&'static SpiMasterClient>>

chip_select: Cell<Option<&'static Pin>>

initialized: Cell<bool>

busy: Cell<bool>

tx_buf: TakeCell<'static, [u8]>

rx_buf: TakeCell<'static, [u8]>

transfer_len: Cell<usize>

Methods

impl SPIM

const fn new(instance: usize) -> SPIM

fn regs(&self) -> &SPIM

pub fn handle_interrupt(&self)

pub fn configure(&self, mosi: Pinmux, miso: Pinmux, sck: Pinmux)

Configures an already constructed SPIM.

pub fn enable(&self)

Enables SPIM peripheral.

pub fn disable(&self)

Disables SPIM peripheral.

pub fn is_enabled(&self) -> bool

Trait Implementations

impl SpiMaster for SPIM

type ChipSelect = &'static Pin

fn set_client(&self, client: &'static SpiMasterClient)

fn init(&self)

fn is_busy(&self) -> bool

fn read_write_bytes(
    &self,
    tx_buf: &'static mut [u8],
    rx_buf: Option<&'static mut [u8]>,
    len: usize
) -> ReturnCode

Perform an asynchronous read/write operation, whose completion is signaled by invoking SpiMasterClient on the initialized client. write_buffer must be Some, read_buffer may be None. If read_buffer is Some, the length of the operation is the minimum of the size of the two buffers.

fn write_byte(&self, _val: u8)

fn read_byte(&self) -> u8

fn read_write_byte(&self, _val: u8) -> u8

fn specify_chip_select(&self, cs: Self::ChipSelect)

Tell the SPI peripheral what to use as a chip select pin. The type of the argument is based on what makes sense for the peripheral when this trait is implemented.

fn set_rate(&self, rate: u32) -> u32

Returns the actual rate set

fn get_rate(&self) -> u32

fn set_clock(&self, polarity: ClockPolarity)

fn get_clock(&self) -> ClockPolarity

fn set_phase(&self, phase: ClockPhase)

fn get_phase(&self) -> ClockPhase

fn hold_low(&self)

fn release_low(&self)