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Class FtdiExpander.I2CBus

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 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
TypeName
System.Int32spinCount

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
TypeNameDescription
System.ByteperipheralAddressThe address of the I2C peripheral.
System.Span<System.Byte>writeBufferThe 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
TypeName
System.ByteperipheralAddress
System.Span<System.Byte>writeBuffer
System.BooleanterminatingStop

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
TypeNameDescription
System.ByteperipheralAddressThe address of the I2C peripheral.
System.Span<System.Byte>writeBufferThe buffer to read data from.
System.Span<System.Byte>readBufferThe 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
TypeNameDescription
System.ByteperipheralAddressThe I2C address to read.
System.Span<System.Byte>readBufferThe buffer used for data reception.

Implements

  • Meadow.Hardware.II2cBus
  • System.IDisposable