/// <summary>
/// Initializes a new instance of the <see cref="RFIDClick"/> class.
/// </summary>
/// <param name="socket">The socket on which the RFID Click board is plugged on MikroBus.Net board</param>
/// <exception cref="DeviceInitialisationException">RFID module not detected</exception>
public RFIDClick(Hardware.Socket socket)
{
_socket = socket;
_rBuffer = new Byte[261];
_tmpBuffer = new byte[260];
GpioPin _rst = GpioController.GetDefault().OpenPin(socket.Rst);
_rst.SetDriveMode(GpioPinDriveMode.Output);
GpioPin _an = GpioController.GetDefault().OpenPin(socket.AnPin);
_an.SetDriveMode(GpioPinDriveMode.Output);
_irqIn = GpioController.GetDefault().OpenPin(socket.PwmPin);
_irqIn.SetDriveMode(GpioPinDriveMode.Output);
// Set SPI mode on the chip
_rst.Write(GpioPinValue.High);
_an.Write(GpioPinValue.Low);
_irqIn.Write(GpioPinValue.High);
// Now that the chip is in SPI mode, we can create the SPI configuration and talk to the module
_rfid = SpiController.FromName(socket.SpiBus).GetDevice(new SpiConnectionSettings()
{
ChipSelectType = SpiChipSelectType.Gpio,
ChipSelectLine = GpioController.GetDefault().OpenPin(socket.Cs),
Mode = SpiMode.Mode0,
ClockFrequency = 2000000
});
_rfid.Write(new byte[] { 0x01, 0x01 });
Thread.Sleep(100);
ToggleIRQ_IN();
Thread.Sleep(100);
_dataReady = GpioController.GetDefault().OpenPin(socket.Int);
_dataReady.SetDriveMode(GpioPinDriveMode.InputPullUp);
//_dataReady.ValueChangedEdge = GpioPinEdge.FallingEdge;
_dataReady.ValueChanged += DataReady_ValueChanged;
if (Echo() != 0x55)
{
//throw new DeviceInitialisationException("RFID device not found");
}
IndexMod_Gain();
AutoFDet();
_protocol = RFIDProtocol.NONE; // Protocol can't be set before calibration has been done
_calibrationDone = false;
_powerMode = PowerModes.On;
_lastTag = "";
}
/// <summary>
/// Initializes a new instance of the <see cref="RFIDClick"/> class.
/// </summary>
/// <param name="socket">The socket on which the RFID Click board is plugged on MikroBus.Net board</param>
/// <exception cref="System.InvalidOperationException">Thrown if some pins are already in use by another board on the same socket</exception>
/// <exception cref="MBN.Exceptions.DeviceInitialisationException">RFID module not detected</exception>
public RFIDClick(Hardware.Socket socket)
{
Hardware.CheckPins(socket, socket.Miso, socket.Mosi, socket.Cs, socket.Sck, socket.An, socket.Rst, socket.Int);
_rBuffer = new Byte[260];
// Set SPI mode on the chip
new OutputPort(socket.Rst, true);
new OutputPort(socket.An, false);
IRQ_IN = new OutputPort(socket.Pwm, true);
Thread.Sleep(1);
ToggleIRQ_IN();
// Now that the chip is in SPI mode, we can create the NETMF configuration and talk to the module
_spiConfig = new SPI.Configuration(socket.Cs, false, 0, 0, false, true, 2000, socket.SpiModule);
if (Hardware.SPIBus == null)
{
Hardware.SPIBus = new SPI(_spiConfig);
}
_dataReady = new InterruptPort(socket.Int, false, Port.ResistorMode.Disabled, Port.InterruptMode.InterruptEdgeLow);
_dataReady.OnInterrupt += DataReady_OnInterrupt;
_dataReady.EnableInterrupt();
if (Echo() != 0x55)
{
throw new DeviceInitialisationException("RFID device not found");
}
IndexMod_Gain();
AutoFDet();
_protocol = RFIDProtocol.NONE; // Protocol can't be set before calibration has been done
_calibrationDone = false;
_powerMode = PowerModes.On;
_lastTag = "";
}
