private void Off_M1_Click(object sender, EventArgs e)
{ //button to decrement offset by 1
if (off > 0 && off < 129)
{
off = off - 1;
}
OffsetText.Clear();
string n = Convert.ToString(off);
OffsetText.AppendText(n);
if (serialPort1.IsOpen)
{
serialPort1.Write("H"); //send flag
Thread.Sleep(10);
}
}
private void Off_P10_Click(object sender, EventArgs e)
{ //button to increment offset by 10
if (off >= 0 && off <= 118)
{
off = off + 10;
}
OffsetText.Clear();
string n = Convert.ToString(off);
OffsetText.AppendText(n);
if (serialPort1.IsOpen)
{
serialPort1.Write("I"); //send flag
Thread.Sleep(10);
}
}
private void Stop_btn_Click(object sender, EventArgs e)
{
//reset dropdowns to none and clear textboxes
Passband.Text = "(none)"; tbAscii.Clear();
SampFreq.Text = "(none)"; ShiftText.Clear();
theDialog.FileName = ""; OffsetText.Clear();
FilePath.Text = theDialog.FileName;
if (serialPort1.IsOpen)
{
serialPort1.Write("S"); //send stop flag to chip
}
//reset stop flag
stop_flag = false;
//disable buttons
Shift_P1.Enabled = false;
Shift_M1.Enabled = false;
Off_M1.Enabled = false;
button1.Enabled = false;
Off_M10.Enabled = false;
Off_P10.Enabled = false;
}
private void Send_btn_Click(object sender, EventArgs e)
{
if (stop_flag == false) //stop button pressed and ready for new data
{
error_flag = false;
OffsetText.Clear();
OffsetText.AppendText("128"); //default offset & display
if (Passband.Text == "Lowpass")
{
if (serialPort1.IsOpen)
{
serialPort1.Write("L"); //send lowpass flag to chip
Thread.Sleep(20);
}
shift = 21; //default shift value
ShiftText.Clear();
ShiftText.AppendText("21"); //display 21
}
else if (Passband.Text == "Bandpass")
{
if (serialPort1.IsOpen)
{
serialPort1.Write("B"); //send bandpass flag to chip
Thread.Sleep(20);
}
shift = 19; //default shift value
ShiftText.Clear();
ShiftText.AppendText("19"); //display value
}
else if (Passband.Text == "(none)")
{ //send error if nothing selecting
error_flag = true;
MessageBox.Show("A Passband Must be Selected.", "ERROR",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (SampFreq.Text == "1 KHz")
{
if (serialPort1.IsOpen)
{
serialPort1.Write("X"); //send flag
Thread.Sleep(20);
}
}
else if (SampFreq.Text == "1.5 KHz")
{
if (serialPort1.IsOpen)
{
serialPort1.Write("Y"); //send falg
Thread.Sleep(20);
}
}
else if (SampFreq.Text == "2 KHz")
{
if (serialPort1.IsOpen)
{
serialPort1.Write("Z"); //send flag
Thread.Sleep(20);
}
}
else if (SampFreq.Text == "(none)")
{ //send error if nothing selecting
error_flag = true;
MessageBox.Show("A Sampling Frequency Must be Selected.", "ERROR",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (FilePath.Text == "")
{ //send error if nothing selecting
MessageBox.Show("A File Must be Selected.", "ERROR",
MessageBoxButtons.OK, MessageBoxIcon.Error);
error_flag = true;
}
if (!error_flag)
{ //open and read the file
file = File.ReadAllText(theDialog.FileName);
file = file.Substring(file.IndexOf('{') + 2); //delete the { and everything before
file = file.Substring(0, file.IndexOf('}') - 1); //delete the } and everything after
file = file.Replace(" ", ""); //relpace spaces with nothing
file = file.Replace("\n", ""); //replace end line with nothing
data = file.ToCharArray(); //convert to char array
for (int i = 0; i < data.Length; i++)
{ //send on char at a time
if (serialPort1.IsOpen)
{
string c = data[i].ToString();
serialPort1.Write(c);
Thread.Sleep(20);
}
}
if (serialPort1.IsOpen)
{
serialPort1.Write("D"); //send done flag
}
stop_flag = true; //wait for stop button to be pressed
theDialog.FileName = ""; //clear file name
FilePath.Text = theDialog.FileName;
//enable shift and off set buttons
Shift_P1.Enabled = true;
Shift_M1.Enabled = true;
Off_M1.Enabled = true;
button1.Enabled = true;
Off_M10.Enabled = true;
Off_P10.Enabled = true;
}
}
}