Struct HdSpiInterface 

pub struct HdSpiInterface<D, DR> { /* private fields */ }

Half-duplex SPI interface.

This interface is what’s implemented in the upstream esp-hosted firmware. It uses:

• An HdSpi implementation for SPI communication (CS is handled by the device)
• A Data_Ready pin that indicates when the ESP has data to send

Implementations

impl<D, DR> HdSpiInterface<D, DR>

where D: HdSpi, DR: InputPin + Wait,

pub fn new(spi: D, data_ready: DR) -> Self

Creates a new half-duplex SPI interface with the given SPI DMA driver and Data_Ready pin.

Trait Implementations

impl<D, DR> Interface for HdSpiInterface<D, DR>

where D: HdSpi, DR: InputPin + Wait,

async fn init(&mut self, cold_boot: bool)

Initialize or re-initialize the transport.

async fn wait_for_handshake(&mut self)

Wait for the ESP to indicate readiness for a new transaction.

async fn wait_for_ready(&mut self)

Wait for the ESP to indicate that it has data to send.

async fn transfer(&mut self, buffer: &mut Aligned<A4, [u8]>, tx_len: usize)

Perform a transfer, exchanging data with the ESP chip.