private void Init(SpiConnectionSettings settings)
{
SetSpiMode(settings.Mode);
SetBitsPerWord(settings.BitsPerWord);
SetMaxSpeed(settings.MaxSpeed);
SetDelay(settings.Delay);
}
protected override void EstablishContext() {
settings = new SpiConnectionSettings {
BitsPerWord = BITS_PER_WORD,
Delay = DELAY,
Mode = SPI_MODE,
MaxSpeed = SPEED_IN_HZ
};
controlDevice = A.Fake<IControlDevice>();
}
public static void Main(string[] args)
{
try
{
Console.WriteLine("Starting application");
var driver = new MemoryGpioConnectionDriver();
var lcdSpiSettings = new SpiConnectionSettings();
lcdSpiSettings.BitsPerWord = 8;
lcdSpiSettings.MaxSpeed = 3932160;
lcdSpiSettings.Delay = 0;
lcdSpiSettings.Mode = SpiMode.Mode0;
var adsSpiSettings = new SpiConnectionSettings();
adsSpiSettings.BitsPerWord = 8;
adsSpiSettings.MaxSpeed = 3932160;
adsSpiSettings.Delay = 0;
adsSpiSettings.Mode = SpiMode.Mode1;
var spi0 = new NativeSpiConnection("/dev/spidev0.0", lcdSpiSettings);
var spi1 = new NativeSpiConnection("/dev/spidev0.1", adsSpiSettings);
var lcdRegisterSelectGpio = ConnectorPin.P1Pin11;
driver.In(lcdRegisterSelectGpio).Read();
var lcdRegisterSelectOut = driver.Out(lcdRegisterSelectGpio);
var lcdResetGpio = ConnectorPin.P1Pin16;
var lcdResetOut = driver.Out(lcdResetGpio);
using (var deviceConnection = new Ti430BoostAds1118Connection(spi0, spi1, lcdRegisterSelectOut, lcdResetOut))
{
deviceConnection.InitializeLcd();
deviceConnection.DisplayStringOnLcd(LcdLine.FirstLine, "Hello!");
Thread.Sleep(500);
deviceConnection.ClearLcd();
var temp = deviceConnection.GetMeasurement();
deviceConnection.DisplayStringOnLcd(LcdLine.SecondLine, string.Format("TEMP: {0} C", temp));
}
}
catch (Exception ex)
{
Console.WriteLine("Exception caught!");
Console.WriteLine("Exception Message: {0}", ex.Message);
Console.WriteLine("Stack Trace: {0}", ex.StackTrace);
}
}
/// <summary>
/// Creates a new instance of the <see cref="NativeSpiConnection"/> class and initializes it.
/// </summary>
/// <param name="deviceFilePath">Full path to the SPI device file (e.g. /dev/spidev0.0).</param>
/// <param name="settings">Connection settings</param>
public NativeSpiConnection(string deviceFilePath, SpiConnectionSettings settings)
: this(new SpiControlDevice(new UnixFile(deviceFilePath, UnixFileMode.ReadWrite)), settings)
{
}
/// <summary>
/// Creates a new instance of the <see cref="NativeSpiConnection"/> class and initializes it.
/// </summary>
/// <param name="deviceFile">A control device (IOCTL) to the device file (e.g. /dev/spidev0.0).</param>
/// <param name="settings">Connection settings</param>
public NativeSpiConnection(ISpiControlDevice deviceFile, SpiConnectionSettings settings)
: this(deviceFile)
{
Init(settings);
}
private void Init(SpiConnectionSettings settings)
{
SetSpiMode(settings.Mode);
SetBitsPerWord(settings.BitsPerWord);
SetMaxSpeed(settings.MaxSpeed);
SetDelay(settings.Delay);
}
/// <summary>
/// Creates a new instance of the <see cref="NativeSpiConnection"/> class and initializes it.
/// </summary>
/// <param name="deviceFilePath">Full path to the SPI device file (e.g. /dev/spidev0.0).</param>
/// <param name="settings">Connection settings</param>
public NativeSpiConnection(string deviceFilePath, SpiConnectionSettings settings)
: this(new SpiControlDevice(new UnixFile(deviceFilePath, UnixFileMode.ReadWrite)), settings)
{
}
/// <summary>
/// Creates a new instance of the <see cref="NativeSpiConnection"/> class and initializes it.
/// </summary>
/// <param name="deviceFile">A control device (IOCTL) to the device file (e.g. /dev/spidev0.0).</param>
/// <param name="settings">Connection settings</param>
public NativeSpiConnection(ISpiControlDevice deviceFile, SpiConnectionSettings settings)
: this(deviceFile)
{
Init(settings);
}
/// <summary>
/// Set up the MCP23S17 for the PiFace Digital board
/// </summary>
private void InitPiFace()
{
InputPins = new PiFaceInputPin[8];
for (int pinNo = 0; pinNo < 8; pinNo++)
{
InputPins[pinNo] = new PiFaceInputPin(pinNo);
}
OutputPins = new PiFaceOutputPin[8];
for (int pinNo = 0; pinNo < 8; pinNo++)
{
OutputPins[pinNo] = new PiFaceOutputPin(pinNo);
}
if (spiConnection == null)
{
SpiConnectionSettings spiSettings = new SpiConnectionSettings { BitsPerWord = 8, Delay = 1, MaxSpeed = 5000000, Mode = SpiMode.Mode0 };
spiConnection = new NativeSpiConnection(driverName, spiSettings);
}
Write(mcp23s17Register.IOCON, IOCON_SEQOP);
SetAllOutputPins(0);
// initialize output and input pins
Write(mcp23s17Register.IODIRA, All_Pins_Output);
Write(mcp23s17Register.IODIRB, All_Pins_Input);
// set resistor on all input pins to pull up
Write(mcp23s17Register.GPPUB, 0xFF);
// set outputs
UpdatePiFaceOutputPins();
// Create re-usable buffer for polling input pins
CreateReusableBufferForInputPolling();
// Get the initial software input pin state and compare to actual inputs
CachedInputState = PiFaceInputPin.AllPinState(InputPins);
PollInputPins();
}
