protected USB2LCD.VersionInfo GetCOMVersion(string port)
{
COM c = null;
USB2LCD.VersionInfo v = new USB2LCD.VersionInfo();
try
{
c = new COM(port, 9600);
v.version = c.ReadByte(USB2LCD.Command.ReadVersion);
v.module = c.ReadByte(USB2LCD.Command.ReadModuleType);
v.serialnumber = c.ReadShort(USB2LCD.Command.ReadSerialNum);;
c.Close();
}
catch (COMException ex)
{
ex.Show(this);
}
catch (Exception ex)
{
MessageBox.Show(this, "The COM port caused an error:\n"+ex.Message, "COM Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
if (c != null) c.Close();
}
return v;
}
private void ReadCur()
{
Control.CheckForIllegalCrossThreadCalls = false;
COM c = null;
try
{
c = new COM(port, Baud);
int display = c.ReadByte(USB2LCD.Command.ReadDisplay);
checkDisplay.Checked = ((display >> 2) & 1) == 1;
checkBlink.Checked = ((display >> 1) & 1) == 1;
checkCursor.Checked = ((display >> 0) & 1) == 1;
int mins = c.ReadByte(USB2LCD.Command.ReadDisplayMin);
radioOnAlways.Checked = mins == 0;
radioOnFor.Checked = mins > 0;
if (mins > 0)
numericOnFor.Value = mins;
trackBarContrast.Value = c.ReadByte(USB2LCD.Command.ReadContrast);
trackBarBacklight.Value= c.ReadByte(USB2LCD.Command.ReadBacklight);
customChar1.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 0, 8));
customChar2.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 1, 8));
customChar3.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 2, 8));
customChar4.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 3, 8));
customChar5.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 4, 8));
customChar6.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 5, 8));
customChar7.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 6, 8));
customChar8.SetData(c.ReadBytes(USB2LCD.Command.ReadCustom, 7, 8));
string s = LCDText.GetStringFromBytes(c.ReadBytes(USB2LCD.Command.ReadMessage, 80));
textLine1.RealText = s.Substring( 0, 20);
textLine2.RealText = s.Substring(20, 20);
textLine3.RealText = s.Substring(40, 20);
textLine4.RealText = s.Substring(60, 20);
}
catch (COMException ex)
{
ex.Show(this);
}
catch (Exception ex)
{
ShowErrorMessage("There was an error:\n"+ex.Message, "Error");
}
finally
{
if (c != null) { c.Close(); }
EnableForm(true);
}
}
private void ReadButtons()
{
COM c = null;
try
{
c = new COM(port, Baud);
string bs = "";
for (byte i = 1; i <= 5; i++)
{
char ch = (char)c.ReadByte(USB2LCD.Command.ReadButton, i);
if (Char.ToLower(ch) != ch)
bs += i + ", ";
}
bs = bs.Trim().Trim(',');
ShowMessage((bs == "") ? "No buttons are pressed" : "Buttons pressed: "+bs, "Buttons", MessageBoxIcon.None);
}
catch (COMException ex)
{
ex.Show(this);
}
catch (Exception ex)
{
ShowErrorMessage("There was an error:\n"+ex.Message, "Error");
}
finally
{
if (c != null) { c.Close(); }
EnableForm(true);
}
}
protected USB2LCD.VersionInfo GetVersion()
{
COM c = null;
USB2LCD.VersionInfo v = new USB2LCD.VersionInfo();
try
{
c = new COM(port, Baud);
v.version = c.ReadByte(USB2LCD.Command.ReadVersion);
v.module = c.ReadByte(USB2LCD.Command.ReadModuleType);
v.serialnumber = c.ReadShort(USB2LCD.Command.ReadSerialNum);
c.Close();
}
catch (COMException ex)
{
ex.Show(this);
}
catch (Exception ex)
{
ShowErrorMessage("The COM port caused an error:\n"+ex.Message, "COM Error");
}
finally
{
if (c != null) { c.Close(); }
}
return v;
}
