public void WriteChar(char charToWrite)
{
//Indicate the writing of a character
RegisterSelect.Write(true);
SendData((byte)charToWrite);
RegisterSelect.Write(false);
}
public void Write(string text)
{
RegisterSelect.Write(true);
foreach (char c in text)
{
SendData((byte)c);
}
RegisterSelect.Write(false);
}
/// <summary>
/// Closes this instance.
/// </summary>
public void Close()
{
RegisterSelect.Dispose();
Clock.Dispose();
if (Backlight != null)
{
Backlight.Dispose();
}
if (ReadWrite != null)
{
ReadWrite.Dispose();
}
foreach (var dataPin in Data)
{
dataPin.Dispose();
}
}
protected virtual void WriteInternal(RegisterSelect register, uint data)
{
rs.Write(register == RegisterSelect.Data); // Data => rs=high
WaitAtLeast(addressSetupTimeNs);
if (spi != null)
{
spiBuffer[0] = (byte)data;
spi.Write(spiBuffer);
WaitAtLeast(dataHoldTimeNs);
}
else
{
switch (dataMode)
{
case DataMode.EightBit:
d7.Write((data & 0x80) != 0);
d6.Write((data & 0x40) != 0);
d5.Write((data & 0x20) != 0);
d4.Write((data & 0x10) != 0);
if ((d3 != null) && (d2 != null) && (d1 != null) && (d0 != null))
{
d3.Write((data & 0x08) != 0);
d2.Write((data & 0x04) != 0);
d1.Write((data & 0x02) != 0);
d0.Write((data & 0x01) != 0);
}
WaitAtLeast(dataSetupTimeNs);
e.Write(true);
WaitAtLeast(enableHighTimeNs);
e.Write(false);
WaitAtLeast(dataHoldTimeNs);
break;
case DataMode.FourBit:
// Send left-hand four bits
d4.Write((data & 0x10) != 0);
d5.Write((data & 0x20) != 0);
d6.Write((data & 0x40) != 0);
d7.Write((data & 0x80) != 0);
WaitAtLeast(dataSetupTimeNs);
e.Write(true);
WaitAtLeast(enableHighTimeNs);
e.Write(false);
WaitAtLeast(dataHoldTimeNs);
// Send right-hand four bits
d4.Write((data & 0x01) != 0);
d5.Write((data & 0x02) != 0);
d6.Write((data & 0x04) != 0);
d7.Write((data & 0x08) != 0);
WaitAtLeast(dataSetupTimeNs);
e.Write(true);
WaitAtLeast(enableHighTimeNs);
e.Write(false);
WaitAtLeast(dataHoldTimeNs);
break;
}
}
}
