Struct mdio::bb::Mdio

pub struct Mdio<MdioPin, MdcPin, Clk> { /* fields omitted */ }

A type providing a "bit-banged" MDIO implementation around two given GPIO pins.

Read

The mdio::Read implementation works as follows:

• Writes the 32-bit preamble.
• Writes the 14 most significant bits of the given ctrl_bits in MSB order.
• Waits for 2 bit times for the turn around.
• Reads the 16-bit data using u16::from_be_bytes.

Write

The mdio::Write implementation works as follows:

• Writes the 32-bit preamble.
• Writes the 16-bit ctrl value in MSB order.
• Writes the 16-bit data in MSB order.

Implementations

impl<MdioPin, MdcPin, Clk, E> Mdio<MdioPin, MdcPin, Clk> where
    MdcPin: OutputPin<Error = E>,
    MdioPin: InputPin<Error = E> + OutputPin<Error = E>,
    Clk: CountDown + Periodic, 

pub fn new(mdio: MdioPin, mdc: MdcPin, clk: Clk) -> Self

Create the bit-banged MDIO instance.

pub fn into_parts(self) -> (MdioPin, MdcPin, Clk)

Split the MDIO bit-banged implementation into its parts.

Trait Implementations

impl<MdioPin, MdcPin, Clk, E> Read for Mdio<MdioPin, MdcPin, Clk> where
    MdcPin: OutputPin<Error = E>,
    MdioPin: InputPin<Error = E> + OutputPin<Error = E>,
    Clk: CountDown + Periodic, 

type Error = E

Errors that might occur during MDIO operation.

pub fn read(&mut self, ctrl_bits: u16) -> Result<u16, Self::Error>

Given the 16 control bits, perform an MDIO read operation.

impl<MdioPin, MdcPin, Clk, E> Write for Mdio<MdioPin, MdcPin, Clk> where
    MdcPin: OutputPin<Error = E>,
    MdioPin: InputPin<Error = E> + OutputPin<Error = E>,
    Clk: CountDown + Periodic, 

type Error = E

Errors that might occur during MDIO operation.

pub fn write(
    &mut self,
    ctrl_bits: u16,
    data_bits: u16
) -> Result<(), Self::Error>

Given the 16 control bits and 16 bits of data, perform an MDIO write operation.