private static void WriteByte(Mcp23x1x mcp23x1x)
{
// This assumes the device is in default Sequential Operation mode.
Console.WriteLine("Write Individual Byte");
Register register = Register.IODIR;
void IndividualRead(Mcp23xxx mcp, Register registerToRead)
{
byte dataRead = mcp23x1x.ReadByte(registerToRead, Port.PortB);
Console.WriteLine($"\tIODIRB: 0x{dataRead:X2}");
}
Console.WriteLine("Before Write");
IndividualRead(mcp23x1x, register);
mcp23x1x.WriteByte(register, 0x12, Port.PortB);
Console.WriteLine("After Write");
IndividualRead(mcp23x1x, register);
mcp23x1x.WriteByte(register, 0xFF, Port.PortB);
Console.WriteLine("After Writing Again");
IndividualRead(mcp23x1x, register);
}
private static void ReadSwitchesWriteLeds(Mcp23x1x mcp23x1x)
{
Console.WriteLine("Read Switches & Write LEDs");
// Input direction for switches.
mcp23x1x.WriteByte(Register.IODIR, 0b1111_1111, Port.PortA);
// Output direction for LEDs.
mcp23x1x.WriteByte(Register.IODIR, 0b0000_0000, Port.PortB);
while (true)
{
// Read switches.
byte data = mcp23x1x.ReadByte(Register.GPIO, Port.PortA);
// Write data to LEDs.
mcp23x1x.WriteByte(Register.GPIO, data, Port.PortB);
Console.WriteLine(data);
Thread.Sleep(500);
}
}