public Max7219(string SpiControllerName, int csPin, int deviceCount = 1, Max7219Type maxMode = Max7219Type.Display)
{
var cs = GHIElectronics.TinyCLR.Devices.Gpio.GpioController.GetDefault().
OpenPin(csPin);
// : this(SpiDevice, device.CreateDigitalOutputPort(csPin), deviceCount, 1, maxMode)
Setup(SpiControllerName, cs, deviceCount, 1, maxMode);
}
/// <summary>
/// Standard initialization routine.
/// </summary>
void Initialize(Max7219Type maxMode)
{
SetRegister(Register.DecodeMode, (byte)((maxMode == Max7219Type.Character)? 0xFF:0)); // use matrix(0) or digits
SetRegister(Register.ScanLimit, 7); //show all 8 digits
SetRegister(Register.DisplayTest, 0); // no display test
SetRegister(Register.ShutDown, 1); // not shutdown mode
SetBrightness(4); //intensity, range: 0..15
Clear();
}
public void SetMode(Max7219Type maxMode)
{
SetRegister(Register.DecodeMode, (byte)((maxMode == Max7219Type.Character) ? 0xFF : 0)); // use matrix(0) or digits
}
public Max7219(IIODevice device, ISpiBus spiBus, IPin csPin, int deviceCount = 1, Max7219Type maxMode = Max7219Type.Display)
: this(spiBus, device.CreateDigitalOutputPort(csPin), deviceCount, 1, maxMode)
{
}
public Max7219(ISpiBus spiBus, IDigitalOutputPort csPort, int deviceRows, int deviceColumns, Max7219Type maxMode = Max7219Type.Display)
{
spi = (SpiBus)spiBus;
chipSelectPort = csPort;
max7219 = new SpiPeripheral(spiBus, csPort);
DeviceRows = deviceRows;
DeviceColumns = deviceColumns;
_buffer = new byte[DeviceCount, NumDigits];
_writeBuffer = new byte[2 * DeviceCount];
_readBuffer = new byte[2 * DeviceCount];
Initialize(maxMode);
}
public Max7219(ISpiBus spiBus, IDigitalOutputPort csPort, int deviceCount = 1, Max7219Type maxMode = Max7219Type.Display)
: this(spiBus, csPort, 8, 1, maxMode)
{
}
void Setup(string SpiControllerName, GpioPin csPort, int deviceRows, int deviceColumns, Max7219Type maxMode = Max7219Type.Display)
{
var settings = new SpiConnectionSettings()
{
ChipSelectType = SpiChipSelectType.Gpio,
ChipSelectLine = csPort,
Mode = SpiMode.Mode1,
ClockFrequency = 4_000_000,
};
var controller = SpiController.FromName(SpiControllerName);
max7219 = controller.GetDevice(settings);
chipSelectPort = csPort;
DeviceRows = deviceRows;
DeviceColumns = deviceColumns;
_buffer = new byte[DeviceCount, NumDigits];
_writeBuffer = new byte[2 * DeviceCount];
_readBuffer = new byte[2 * DeviceCount];
Initialize(maxMode);
}
public Max7219(string SpiControllerName, GpioPin csPort, int deviceRows, int deviceColumns, Max7219Type maxMode = Max7219Type.Display)
{
Setup(SpiControllerName, csPort, deviceRows, deviceColumns, maxMode);
}
public Max7219(string SpiControllerName, GpioPin csPort, int deviceCount = 1, Max7219Type maxMode = Max7219Type.Display)
: this(SpiControllerName, csPort, 8, 1, maxMode)
{
}
public Max7219(ISpiBus spiBus, IDigitalOutputPort csPort, int deviceCount = 1, Max7219Type maxMode = Max7219Type.Display)
{
max7219 = new SpiPeripheral(spiBus, csPort);
DeviceCount = deviceCount;
_buffer = new byte[DeviceCount, NumDigits];
_writeBuffer = new byte[2 * DeviceCount];
Initialize(maxMode);
}
