public void RegisterInitialization(TestDevice testDevice)
{
// All pins should be set to output.
Pcx857x device = testDevice.Device;
if (device.PinCount == 8)
{
Assert.Equal(0x00, device.ReadByte());
}
else
{
Assert.Equal(16, device.PinCount);
Pcx8575 device16 = (Pcx8575)device;
Assert.Equal(0x0000, device16.ReadUInt16());
}
}
public void Write_GoodPin(TestDevice testDevice)
{
Pcx857x device = testDevice.Device;
for (int pin = 0; pin < testDevice.Device.PinCount; pin++)
{
bool first = pin < 8;
device.Write(pin, PinValue.High);
byte expected = (byte)(1 << (first ? pin : pin - 8));
Assert.Equal(expected,
first ? device.ReadByte() : (byte)(((Pcx8575)device).ReadUInt16() >> 8));
device.Write(pin, PinValue.Low);
Assert.Equal(0,
first ? device.ReadByte() : (byte)(((Pcx8575)device).ReadUInt16() >> 8));
}
}
public void Read_GoodPin(TestDevice testDevice)
{
Pcx857x device = testDevice.Device;
for (int pin = 0; pin < testDevice.Controller.PinCount; pin++)
{
// Set pin to input
testDevice.Controller.OpenPin(pin, PinMode.Input);
bool first = pin < 8;
int register = first ? 0x00 : 0x01;
// Flip the bit on (set the backing buffer directly to simulate incoming data)
testDevice.ChipMock.Registers[register] = (byte)(1 << (first ? pin : pin - 8));
Assert.Equal(PinValue.High, testDevice.Controller.Read(pin));
// Clear the register
testDevice.ChipMock.Registers[register] = 0x00;
Assert.Equal(PinValue.Low, testDevice.Controller.Read(pin));
}
}
public TestDevice(Pcx857x device, Pcx857xChipMock chipMock)
{
Device = device;
ChipMock = chipMock;
}
public TestDevice(Pcx857x device, Pcx857xChipMock chipMock)
{
Device = device;
ChipMock = chipMock;
Controller = new GpioController(PinNumberingScheme.Logical, Device);
}
