Class x74595

Provide an interface to connect to a 74595 shift register

Assembly: x74595.dll

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Declaration

public class x74595 : IDigitalOutputController, IPinController, ISpiPeripheral

Implements:
Meadow.Hardware.IDigitalOutputController, Meadow.Hardware.IPinController, Meadow.Hardware.ISpiPeripheral

Properties

Pins

The pin definitions

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Declaration

public x74595.PinDefinitions Pins { get; }

DefaultSpiBusSpeed

The default SPI bus speed for the device

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Declaration

public Frequency DefaultSpiBusSpeed { get; }

SpiBusSpeed

The SPI bus speed for the device

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Declaration

public Frequency SpiBusSpeed { get; set; }

DefaultSpiBusMode

The default SPI bus mode for the device

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Declaration

public SpiClockConfiguration.Mode DefaultSpiBusMode { get; }

SpiBusMode

The SPI bus mode for the device

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Declaration

public SpiClockConfiguration.Mode SpiBusMode { get; set; }

Fields

spiComms

SPI Communication bus used to communicate with the peripheral

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Declaration

protected ISpiCommunications spiComms

Methods

CreateDigitalOutputPort(IPin, bool, OutputType)

Creates a new DigitalOutputPort using the specified pin and initial state

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Declaration

public IDigitalOutputPort CreateDigitalOutputPort(IPin pin, bool initialState, OutputType outputType)

Returns

Meadow.Hardware.IDigitalOutputPort

Parameters

Type	Name	Description
Meadow.Hardware.IPin	pin	The pin number to create the port on
System.Boolean	initialState	Whether the pin is initially high or low
Meadow.Hardware.OutputType	outputType	The port output type

Clear(bool)

Clear the shift register buffer

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Declaration

public void Clear(bool update = true)

Parameters

Type	Name	Description
System.Boolean	update	If true, send changes to the shift register

WriteToPin(IPin, bool)

Sets a particular pin's value.

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Declaration

public void WriteToPin(IPin pin, bool value)

Parameters

Type	Name	Description
Meadow.Hardware.IPin	pin	The pin to write to.
System.Boolean	value	The value to write. True for high, false for low.

IsValidPin(IPin)

Checks whether or not the pin passed in exists on the chip.

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Declaration

protected bool IsValidPin(IPin pin)

Returns

System.Boolean

Parameters

Type	Name
Meadow.Hardware.IPin	pin

GetPin(string)

Get pin from name

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Declaration

public IPin GetPin(string pinName)

Returns

Meadow.Hardware.IPin: An IPin object

Parameters

Type	Name	Description
System.String	pinName	The pin name

Implements

• Meadow.Hardware.IDigitalOutputController
• Meadow.Hardware.IPinController
• Meadow.Hardware.ISpiPeripheral