Struct ht16k33::i2c_mock::I2cMock

pub struct I2cMock {
    pub data_values: [u8; 16],
    /* private fields */
}

The mock I2C state.

Example

// NOTE: `None` is used for the Logger in these examples for convenience,
// in practice using an actual logger is preferred.

extern crate ht16k33;
use ht16k33::i2c_mock::I2cMock;

// Create an I2cMock.
let i2c_mock = I2cMock::new(None);

Fields

data_values: [u8; 16]

Display RAM state.

Implementations

impl I2cMock

pub fn new<L>(logger: L) -> Selfwhere
    L: Into<Option<Logger>>,

Create an I2cMock.

Arguments

• logger - A logging instance.

Notes

logger = None, will log to the slog-stdlog drain. This makes the library effectively work the same as if it was just using log instead of slog.

Trait Implementations

impl Write<u8> for I2cMock

fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error>

write implementation.

Arguments

• _address - The slave address. Ignored.
• bytes - The command/address instructions to be written.

Examples

let mut i2c_mock = I2cMock::new(None);

// First value is the data address, remaining values are to be written
// starting at the data address which auto-increments and then wraps.
let write_buffer = [ht16k33::DisplayDataAddress::ROW_0.bits(), 0u8, 0u8];

i2c_mock.write(0, &write_buffer);

type Error = I2cMockError

Error type

impl WriteRead<u8> for I2cMock

fn write_read(
    &mut self,
    address: u8,
    bytes: &[u8],
    buffer: &mut [u8]
) -> Result<(), Self::Error>

write_read implementation.

Arguments

• _address - The slave address. Ignored.
• bytes - The command/address instructions to be written.
• buffer - The read results.

Examples

let mut i2c_mock = I2cMock::new(None);

let mut read_buffer = [0u8; 16];
i2c_mock.write_read(0, &[ht16k33::DisplayDataAddress::ROW_0.bits()], &mut read_buffer);

type Error = I2cMockError

Error type