/// <summary>
/// Create a new shift register (say 74595) on the specified SPI bus.
/// </summary>
/// <param name="spiBus">SPI module connected to the shift register.</param>
/// <param name="latchPin">Microcontroller pin connected to the latch pin on the shift register.</param>
/// <param name="bitOrder">Bit order of the data to be transmitted to the shift register.</param>
/// <param name="setup">ShifterSetup object defining the order of the pins on the shift register and the pins on the LCD.</param>
public Shifter74Hc595LcdTransferProvider(SPI.SPI_module spiBus, Cpu.Pin latchPin, BitOrder bitOrder,
ShifterSetup setup)
: base(setup)
{
_bitOrder = bitOrder;
SPI.Configuration spiConfig = new SPI.Configuration(
ChipSelect_Port: Cpu.Pin.GPIO_NONE, // No chip select.
ChipSelect_ActiveState: false, // Chip select is active low.
ChipSelect_SetupTime: 0, // Amount of time between selection and the clock starting
ChipSelect_HoldTime: 0, // Amount of time the device must be active after the data has been read.
Clock_Edge: false, // Sample on the falling edge.
Clock_IdleState: true, // Clock is idle when low.
Clock_RateKHz: 1000, // 1MHz clock speed.
SPI_mod: spiBus);
_spi = new SPI(spiConfig);
_latchPort = new OutputPort(latchPin, false);
}
public Shifter74Hc595LcdTransferProvider(SPI.SPI_module spiBus, Cpu.Pin latchPin, BitOrder bitOrder, ShifterSetup setup)
: base(setup)
{
_bitOrder = bitOrder;
var spiConfig = new SPI.Configuration(
Cpu.Pin.GPIO_NONE, //latchPin,
false, // active state
0, // setup time
0, // hold time
false, // clock idle state
true, // clock edge
1000, // clock rate
spiBus);
_spi = new SPI(spiConfig);
_latchPort = new OutputPort(latchPin, true);
}
public MCP23008LcdTransferProvider(I2CBus bus, ushort address, ShifterSetup setup)
: base(setup)
{
_expander = new MCP23008Expander(bus, address);
Thread.Sleep(10); // make sure bus initializes
_expander.SetPinMode(setup.Enable, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.RS, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D4, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D5, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D6, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D7, MCP23008Expander.PinMode.Output);
if (setup.RW != ShifterPin.None)
_expander.SetPinMode(setup.RW, MCP23008Expander.PinMode.Output);
if (setup.BL != ShifterPin.None)
_expander.SetPinMode(setup.BL, MCP23008Expander.PinMode.Output);
}
public MCP23008LcdTransferProvider(I2CBus bus, ushort address, ShifterSetup setup)
: base(setup)
{
_expander = new MCP23008Expander(bus, address);
Thread.Sleep(10); // make sure bus initializes
_expander.SetPinMode(setup.Enable, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.RS, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D4, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D5, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D6, MCP23008Expander.PinMode.Output);
_expander.SetPinMode(setup.D7, MCP23008Expander.PinMode.Output);
if (setup.RW != ShifterPin.None)
{
_expander.SetPinMode(setup.RW, MCP23008Expander.PinMode.Output);
}
if (setup.BL != ShifterPin.None)
{
_expander.SetPinMode(setup.BL, MCP23008Expander.PinMode.Output);
}
}
/// <summary>
/// Constructor for the class.
/// </summary>
/// <param name="setup">Configuration of the pin assignment between the shift register and the display.</param>
protected BaseShifterLcdTransferProvider(ShifterSetup setup)
{
_setup = setup;
}
protected BaseShifterLcdTransferProvider(ShifterSetup setup)
{
_setup = setup;
}
public Shifter74Hc595LcdTransferProvider(SPI.SPI_module spiBus, Cpu.Pin latchPin, BitOrder bitOrder, ShifterSetup setup)
: base(setup)
{
_bitOrder = bitOrder;
var spiConfig = new SPI.Configuration(
Cpu.Pin.GPIO_NONE, //latchPin,
false, // active state
0, // setup time
0, // hold time
false, // clock idle state
true, // clock edge
1000, // clock rate
spiBus);
_spi = new SPI(spiConfig);
_latchPort = new OutputPort(latchPin, true);
}
