Struct SpiBitbangEncoder

pub struct SpiBitbangEncoder<const D0: u8, const D1: u8, const D2: u8, const D3: u8, const CLK: u8, const CS: u8> {
    pub config: SpiBitbangConfig,
    pub delays: SpiEncodingDelays,
    /* private fields */
}

An encoder for SPI transmissions, parameterized over bits in the output bitfields to use for transmission. Does not support encoding as a SPI device (only works as a SPI host).

Fields

config: SpiBitbangConfig

delays: SpiEncodingDelays

Implementations

impl<const D0: u8, const D1: u8, const D2: u8, const D3: u8, const CLK: u8, const CS: u8> SpiBitbangEncoder<D0, D1, D2, D3, CLK, CS>

pub fn new(config: SpiBitbangConfig, delays: SpiEncodingDelays) -> Self

pub fn reset(&mut self)

pub fn set_data_mode(&mut self, mode: SpiDataMode)

pub fn assert_cs(&mut self, assert: bool, samples: &mut Vec<u8>)

Output GPIO bitbanging samples for pulling CS low/high (active/inactive).

pub fn encode_read( &mut self, words: usize, samples: &mut Vec<u8>, ) -> Result<(), SpiTransferEncodeError>

Encode a read transmission of several SPI words into GPIO bitbanging samples. CS should already be asserted via assert_cs before calling.

pub fn encode_write( &mut self, data: &[u8], samples: &mut Vec<u8>, ) -> Result<(), SpiTransferEncodeError>

Encode a write transmission of several SPI words into GPIO bitbanging samples. CS should already be asserted via assert_cs before calling.

pub fn encode_transaction( &mut self, data: &[u8], samples: &mut Vec<u8>, ) -> Result<(), SpiTransferEncodeError>

A helper function to encode a full SPI transmission, including logic for asserting and later de-asserting the CS.