private static Hd44780Configuration LoadMcp23008Configuration(IEnumerable <string> args)
{
var addressText = args.SkipWhile(s => !String.Equals(s, "mcp23008", StringComparison.InvariantCultureIgnoreCase)).Skip(1).DefaultIfEmpty("0x20").First();
var address = addressText.StartsWith("0x", StringComparison.InvariantCultureIgnoreCase)
? Int32.Parse(addressText.Substring(2), NumberStyles.HexNumber)
: Int32.Parse(addressText);
const Mcp23008Pin registerSelectPin = Mcp23008Pin.Pin1;
const Mcp23008Pin clockPin = Mcp23008Pin.Pin2;
const Mcp23008Pin backlightPin = Mcp23008Pin.Pin7;
var dataPins = new[]
{
Mcp23008Pin.Pin3,
Mcp23008Pin.Pin4,
Mcp23008Pin.Pin5,
Mcp23008Pin.Pin6
};
Console.WriteLine();
Console.WriteLine("Using I2C connection over MCP23008 Expander");
Console.WriteLine("\tRegister Select: {0}", registerSelectPin);
Console.WriteLine("\tClock: {0}", clockPin);
Console.WriteLine("\tData 1: {0}", dataPins[0]);
Console.WriteLine("\tData 2: {0}", dataPins[1]);
Console.WriteLine("\tData 3: {0}", dataPins[2]);
Console.WriteLine("\tData 4: {0}", dataPins[3]);
Console.WriteLine("\tBacklight: {0}", backlightPin);
Console.WriteLine("\tRead/write: GND");
Console.WriteLine();
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor())
{
ClockDivider = 512
};
var connection = new Mcp23008I2cConnection(driver.Connect(address));
var retVal = new Hd44780Configuration(driver)
{
Pins = new Hd44780Pins(
connection.Out(registerSelectPin),
connection.Out(clockPin),
dataPins.Select(pin => (IOutputBinaryPin)connection.Out(pin)))
};
retVal.Pins.Backlight = connection.Out(backlightPin);
return(retVal);
}
private static Hd44780Configuration LoadMcp23008Configuration(IEnumerable<string> args)
{
var addressText = args.SkipWhile(s => !String.Equals(s, "mcp23008", StringComparison.InvariantCultureIgnoreCase)).Skip(1).DefaultIfEmpty("0x20").First();
var address = addressText.StartsWith("0x", StringComparison.InvariantCultureIgnoreCase)
? Int32.Parse(addressText.Substring(2), NumberStyles.HexNumber)
: Int32.Parse(addressText);
const Mcp23008Pin registerSelectPin = Mcp23008Pin.Pin1;
const Mcp23008Pin clockPin = Mcp23008Pin.Pin2;
const Mcp23008Pin backlightPin = Mcp23008Pin.Pin7;
var dataPins = new[]
{
Mcp23008Pin.Pin3,
Mcp23008Pin.Pin4,
Mcp23008Pin.Pin5,
Mcp23008Pin.Pin6
};
Console.WriteLine();
Console.WriteLine("Using I2C connection over MCP23008 Expander");
Console.WriteLine("\tRegister Select: {0}", registerSelectPin);
Console.WriteLine("\tClock: {0}", clockPin);
Console.WriteLine("\tData 1: {0}", dataPins[0]);
Console.WriteLine("\tData 2: {0}", dataPins[1]);
Console.WriteLine("\tData 3: {0}", dataPins[2]);
Console.WriteLine("\tData 4: {0}", dataPins[3]);
Console.WriteLine("\tBacklight: {0}", backlightPin);
Console.WriteLine("\tRead/write: GND");
Console.WriteLine();
const ConnectorPin sdaPin = ConnectorPin.P1Pin03;
const ConnectorPin sclPin = ConnectorPin.P1Pin05;
var driver = new I2cDriver(sdaPin.ToProcessor(), sclPin.ToProcessor()) { ClockDivider = 512 };
var connection = new Mcp23008I2cConnection(driver.Connect(address));
var retVal = new Hd44780Configuration(driver)
{
Pins = new Hd44780Pins(
connection.Out(registerSelectPin),
connection.Out(clockPin),
dataPins.Select(pin => (IOutputBinaryPin)connection.Out(pin)))
};
retVal.Pins.Backlight = connection.Out(backlightPin);
return retVal;
}
