Class FtdiExpander.I2CBus

Assembly: Ft232h.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 bus clock speed.

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Declaration

public I2cBusSpeed BusSpeed { get; set; }

Fields

_expander

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Declaration

protected readonly FtdiExpander _expander

MaskGpio

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Declaration

protected const byte MaskGpio = 248

Methods

Wait(int)

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Declaration

protected void Wait(int spinCount)

Parameters

Type	Name
System.Int32	spinCount

Write(byte, Span<byte>)

Writes a number of bytes to the bus.

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Declaration

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

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The address of the I2C peripheral.
System.Span<System.Byte>	writeBuffer	The data to be written.

Write(byte, Span<byte>, bool)

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Declaration

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

Parameters

Type	Name
System.Byte	peripheralAddress
System.Span<System.Byte>	writeBuffer
System.Boolean	terminatingStop

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

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Declaration

public void Dispose()

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

Writes data from the write buffer to a peripheral on the bus, then resets the bus and reads the return data into the read buffer.

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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 I2C peripheral.
System.Span<System.Byte>	writeBuffer	The buffer to read data from.
System.Span<System.Byte>	readBuffer	The buffer to read returning data into.

Read(byte, Span<byte>)

Reads bytes from a peripheral.

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Declaration

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

Parameters

Type	Name	Description
System.Byte	peripheralAddress	The I2C address to read.
System.Span<System.Byte>	readBuffer	The buffer used for data reception.

Implements

• Meadow.Hardware.II2cBus
• System.IDisposable