Struct SpiInterface 

pub struct SpiInterface<SPI, IN> { /* private fields */ }

Standard SPI interface.

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

• An SpiDevice for SPI communication (CS is handled by the device)
• A handshake pin that signals when the ESP is ready for a new transaction
• A ready pin that indicates when the ESP has data to send

Implementations

impl<SPI, IN> SpiInterface<SPI, IN>

where SPI: SpiDevice, IN: InputPin + Wait,

pub fn new(spi: SPI, handshake: IN, ready: IN) -> Self

Create a new SpiInterface.

Trait Implementations

impl<SPI, IN> Interface for SpiInterface<SPI, IN>

where SPI: SpiDevice, IN: InputPin + Wait,

async fn wait_for_handshake(&mut self)

Wait for the HANDSHAKE signal indicating the ESP is ready for a new transaction.

async fn wait_for_ready(&mut self)

Wait for the READY signal indicating the ESP has data to send.

async fn transfer(&mut self, rx: &mut [u8], tx: &[u8])

Perform a SPI transfer, exchanging data with the ESP chip.