MraaSpi class

The SPI MRAA API

An SPI object in MRAA represents a spidev device. Linux spidev devices are created per SPI bus and every chip select available on that bus has another spidev 'file'.

Constructors

MraaSpi(MraaImpl _impl, bool _noJsonLoading)

Construction

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

bitsPerWord(MraaSpiContext dev, int bits) → MraaReturnCode

Bits per word - mraa_spi_bit_per_word

frequency(MraaSpiContext dev, int hz) → MraaReturnCode

Frequency - mraa_spi_frequency

initialise(int busId) → MraaSpiContext

Initialise - mraa_spi_init

initialiseRaw(int busId, int cs) → MraaSpiContext

Initialise raw- mraa_spi_init_raw

lsbMode(MraaSpiContext dev, bool lsb) → MraaReturnCode

Lsb mode - mraa_spi_lsbmode

mode(MraaSpiContext dev, MraaSpiMode mode) → MraaReturnCode

Mode - mraa_spi_mode

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

stop(MraaSpiContext dev) → MraaReturnCode

Stop - mraa_spi_stop

toString() → String

A string representation of this object.

inherited

transferBuffer(MraaSpiContext dev, MraaSpiTransferBuffer<Uint8List> buffer, int length) → MraaReturnCode

Transfer buffer - mraa_spi_transfer_buf

transferBufferWord(MraaSpiContext dev, MraaSpiTransferBuffer<Uint16List> buffer, int length) → MraaReturnCode

Transfer buffer word - mraa_spi_transfer_buf_word

write(MraaSpiContext dev, int data) → int

Write - mraa_spi_write

writeBuffer(MraaSpiContext dev, Uint8List data, int length) → Uint8List

Write buffer - mraa_spi_write_buf

writeBufferWord(MraaSpiContext dev, Uint16List data, int length) → Uint16List

Write buffer word - mraa_spi_write_buf_word

writeWord(MraaSpiContext dev, int data) → int

Write word - mraa_spi_write_word

Operators

operator ==(Object other) → bool

The equality operator.

inherited