private void Read_Port_Click(object sender, System.EventArgs e)
{
ushort PortAddr;
PortAddr = ushort.Parse(PortR1.Text, NumberStyles.HexNumber);
PortR1.Text = PortAddr.ToString("X4");
switch (C_ReadSize.SelectedIndex)
{
case 0: ValR1.Text = (TVicPort.ReadPort(PortAddr)).ToString("X2"); break;
case 1: ValR1.Text = (TVicPort.ReadPortW(PortAddr)).ToString("X4"); break;
case 2: ValR1.Text = (TVicPort.ReadPortL(PortAddr)).ToString("X8"); break;
}
}
private void B_Test_Click(object sender, System.EventArgs e)
{
Cursor = Cursors.WaitCursor;
ushort Cycle, NumPortCycles;
ushort PortAddr;
byte DataByte;
double a, b, r;
PortAddr = ushort.Parse(EPortAddr.Text, NumberStyles.HexNumber);
NumPortCycles = ushort.Parse(E_Cycles.Text, NumberStyles.Integer);
byte[] buffer = new byte[NumPortCycles];
// Separate I/O operations
a = DateTime.Now.Ticks;
for (Cycle = 1; Cycle <= NumPortCycles; Cycle++)
{
DataByte = TVicPort.ReadPort(PortAddr);
}
b = DateTime.Now.Ticks;
r = System.Math.Abs(b - a) / (10 * NumPortCycles);
L_Test1.Text = String.Concat(r.ToString("F4"), " microsec");
// with ReadPortBuffer()
a = DateTime.Now.Ticks;
// Declare an unsafe block
unsafe
{
// Fix the byte array.
fixed(byte *array = buffer)
{
// Make the call here, passing in the array.
TVicPort.ReadPortFIFO(PortAddr, NumPortCycles, array);
}
}
b = DateTime.Now.Ticks;
r = System.Math.Abs(b - a) / (10 * NumPortCycles);
L_Test4.Text = String.Concat(r.ToString("F4"), " microsec");
Cursor = Cursors.Default;
}