private static void ShiftRegisterCounter()
{
var shiftRegisters = new ShiftRegister(
Pi3Pins.Gpio17.Prepare(), // signal (SER - chip pin 14)
Pi3Pins.Gpio27.Prepare(), // signal clock (SRCLK - chip pin 11)
Pi3Pins.Gpio22.Prepare(), // register clock (RCLK - chip pin 12)
Pi3Pins.Gpio18.Prepare(), // clear (SRCLR - chip pin 10 - Important: tie this high if not connected to Pi!)
Pi3Pins.Gpio23.Prepare(), // enabled (OE - chip pin 13)
3); // 3 chips to demo chaining, see readme.md
for (var i = 0; i < 8; i++) // demo looping through first chips outputs
{
shiftRegisters.Clear();
shiftRegisters[i] = true;
Thread.Sleep(1000);
}
shiftRegisters.Clear();
shiftRegisters[0] = true; // turns on Pin 15 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[1] = true; // turns on Pin 1 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[2] = true; // turns on Pin 2 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[3] = true; // turns on Pin 3 on the first chip immediately
shiftRegisters.AutoCommit = false; // disabled AutoCommit to set multiple values at once
shiftRegisters.Clear();
shiftRegisters[4] = true; // turns on Pin 4 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[5] = true; // turns on Pin 5 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[6] = true; // turns on Pin 6 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[7] = true; // turns on Pin 7 on the first chip immediately
Thread.Sleep(100);
shiftRegisters[8] = true; // Pin 15 on the second chip
Thread.Sleep(100);
shiftRegisters[16] = true; // Pin 15 on the third chip
shiftRegisters.Commit(); // turns on the above pins simultaneously
}
public void ClearSpikesOutputWhileClearIsOn()
{
//arrange
var enabled = new PinStub(1);
var data = new PinStub(2);
var shift = new PinStub(3);
var output = Substitute.For <IPinInterface>();
var clear = Substitute.For <IPinInterface>();
var register = new ShiftRegister(enabled, data, shift, output, clear);
//act
register.Clear();
//assert
clear.Received().TurnOn();
output.Received().Spike();
clear.Received().TurnOff();
}
