Class FtdiExpander.I2CBus

Represents an I2C bus for the FTDI expander.

Assembly: Ft2xxx.dll

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Declaration

public abstract class FtdiExpander.I2CBus : II2cBus, IDisposable

Derived:
Meadow.Foundation.ICs.IOExpanders.FtdiExpander.Ft232hI2cBus

Implements:
Meadow.Hardware.II2cBus, System.IDisposable

Properties

BusSpeed

Gets or sets the speed of the I2C bus.

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Declaration

public I2cBusSpeed BusSpeed { get; set; }

Fields

_expander

The FTDI expander instance associated with this I2C bus.

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Declaration

protected readonly FtdiExpander _expander

MaskGpio

Mask for GPIO operations.

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Declaration

protected const byte MaskGpio = 248

Methods

Wait(int)

Waits for a specified number of spin counts.

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Declaration

protected void Wait(int spinCount)

Parameters

Type	Name	Description
System.Int32	spinCount	The number of spin counts to wait.

Write(byte, Span<byte>)

Writes data to a peripheral device.

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Declaration

public void Write(byte peripheralAddress, Span<byte> writeBuffer)

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The address of the peripheral device.
System.Span<System.Byte>	writeBuffer	The data buffer to write.

Write(byte, Span<byte>, bool)

Writes data to a peripheral device with an option to send a stop condition.

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Declaration

public void Write(byte peripheralAddress, Span<byte> writeBuffer, bool terminatingStop)

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The address of the peripheral device.
System.Span<System.Byte>	writeBuffer	The data buffer to write.
System.Boolean	terminatingStop	Whether to send a stop condition after writing.

Dispose()

Releases all resources used by the Meadow.Foundation.ICs.IOExpanders.FtdiExpander.I2CBus.

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Declaration

public void Dispose()

Exchange(byte, Span<byte>, Span<byte>)

Exchanges data with a peripheral device.

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Declaration

public void Exchange(byte peripheralAddress, Span<byte> writeBuffer, Span<byte> readBuffer)

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The address of the peripheral device.
System.Span<System.Byte>	writeBuffer	The data buffer to write.
System.Span<System.Byte>	readBuffer	The data buffer to read.

Read(byte, Span<byte>)

Reads data from a peripheral device.

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Declaration

public void Read(byte peripheralAddress, Span<byte> readBuffer)

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The address of the peripheral device.
System.Span<System.Byte>	readBuffer	The data buffer to read.

Implements

• Meadow.Hardware.II2cBus
• System.IDisposable