Serial Port Complete - Latest Microcontroller projects

Chapter 9

 byte dataToWrite;

dataToWrite = 65;

binaryWriter1.Write( dataToWrite );

The Read method can read a received byte into a byte array:

 Dim receivedData(0) As Byte

binaryReader1.Read(receivedData, 0, 1)

Console.WriteLine(ChrW(receivedData(0)))

 byte[] receivedData = new byte[ 1 ];

binaryReader1.Read( receivedData, 0, 1 );

Console.WriteLine((char)( receivedData[ 0 ] ) );

The Write method can also write just about any data type. For example, a

BinaryWriter object can write an Int32 value:

 Dim valueToWrite As Int32

valueToWrite = 66

binaryWriter1.Write(valueToWrite)

 Int32 dataToWrite;

dataToWrite = 66;

binaryWriter1.Write( dataToWrite );

Each Int32 value written to the port is four bytes. For example, writing an

Int32 with a value of 66 (42h) writes the bytes 42h, 00h, 00h, 00h to the port.

The receiving computer can store the value in an Int32 variable:

 Dim receivedData As Int32

receivedData = binaryReader1.ReadInt32

 Int32 receivedData;

receivedData = binaryReader1.ReadInt32();

The ReadInt32 method returns on receiving four bytes.