Struct wishbone_bridge::SpiBridge

pub struct SpiBridge { /* fields omitted */ }

Describes a connection to a SPI bus. Note that not all platforms support SPI connections.

Implementations

impl SpiBridge

A builder to create a connection to a target via SPI. These connections are currently only supported on Raspberry Pi through the use of bit-banging. There are interesting opportunities to add support for SPI connections to other platforms.

use wishbone_bridge::SpiBridge;
let bridge = SpiBridge::new("2,3,4,18").unwrap().create().unwrap();

pub fn new(pinspec: &str) -> Result<Self, String>

Create a new SpiBridge struct with the provided pinspec. This spec is a comma-delimited list of pins to use for the SPI connection. The number of pins provided indicates the type of connection to use:

2: Use two-wire communication (no chip select, shared I/O line)
3: Use three-wire communication (chip select, shared I/O line)
4: Use four-wire communication (chip select, output, and input lines)

This function returns an error if the spec cannot be parsed.

pub fn create(&self) -> Result<Bridge, BridgeError>

Create a Bridge struct based on the current configuration. This will return an error on platforms that do not support SPI.

Trait Implementations

impl Clone for SpiBridge

fn clone(&self) -> SpiBridge

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.