Problem of code for SSC-32

Lynxmotion Electronics & Software
1

SerialPort serialPort1 = new SerialPort();

        if (serialPort1.IsOpen)
            serialPort1.Close();


        try
        {
            serialPort1.BaudRate = 115200;
            serialPort1.PortName = "COM1";
            serialPort1.Parity = Parity.None;
            serialPort1.DataBits = 8;
            serialPort1.StopBits = StopBits.One;
            //Now open the serial port
            serialPort1.Open();
        }
        catch (Exception ex)
        {
           MessageBox.Show("Couldn't open the Serial Port!");
            MessageBox.Show(ex.ToString());
        }

        serialPort1.Write("#0 P1500\r");

        serialPort1.Write("#1 P1500\r");
        serialPort1.Write("#2 P1500\r");
        serialPort1.Write("#3 P1500\r");
        serialPort1.Write("#4 P1500\r");
        serialPort1.Write("#5 P1500\r");

        serialPort1.Close();

}

[size=200]BUT Problem starts when I write:[/size]

SerialPort serialPort1 = new SerialPort();

        if (serialPort1.IsOpen)
            serialPort1.Close();


        try
        {
            serialPort1.BaudRate = 115200;
            serialPort1.PortName = "COM1";
            serialPort1.Parity = Parity.None;
            serialPort1.DataBits = 8;
            serialPort1.StopBits = StopBits.One;
            //Now open the serial port
            serialPort1.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show("Couldn't open the Serial Port!");
            MessageBox.Show(ex.ToString());

            serialPort1.Write("#0 P1000 S1000\r");
            serialPort1.Write("#4 P1000 #3 P1100 #5 P1000\r");

            serialPort1.Close();

}

[size=150]I am using TowerPro MG995 total six motors. [/size]

[size=150]The problem is group move doesnot work.[/size]

serialPort1.Write("#4 P1000 #3 P1100 #5 P1000\r");

[size=150]As well as inidividual move also doesnot work.[/size]

serialPort1.Write("#0 P1000 S1000\r");

[size=150]But, this center all servos move works Perfectly:[/size]

    serialPort1.Write("#0 P1500\r");
        serialPort1.Write("#1 P1500\r");
        serialPort1.Write("#2 P1500\r");
        serialPort1.Write("#3 P1500\r");
        serialPort1.Write("#4 P1500\r");
        serialPort1.Write("#5 P1500\r");
2

hi, are you using .net?
if so you might have to encode your strings as ASCII. string literals in .net are all unicode.

byte ] message = Encoding.ASCII.GetBytes( “#4 P1000 #3 P1100 #5 P1000\r” );
serialPort1.Write( message, 0, message.Length );

this may or may not be the problem, but its worth a shot. my ssc-32 is still in the mail so i havent done any testing myself

-edit-
hm, never mind, SerialPort.Write(String) already does ascii encoding… perhaps some other encoding should be used? or maybe its a diffrent issue entierly :slight_smile:

3

If this is a cut and paste of your actual code, it appears as if you are missing a close brace, }, after the second MessageBox command in the “catch (Exception ex)” code.

Do you see it?

4

Thank You, but problem is something else.

5

I could be wrong, but my quick look through, it looks like you only do something if you get an exception…

That is the code should probably look more like:

SerialPort serialPort1 = new SerialPort();

if (serialPort1.IsOpen)
serialPort1.Close();


try
{
    serialPort1.BaudRate = 115200;
    serialPort1.PortName = "COM1";
    serialPort1.Parity = Parity.None;
    serialPort1.DataBits = 8;
    serialPort1.StopBits = StopBits.One;
    //Now open the serial port
    serialPort1.Open();
    serialPort1.Write("#0 P1000 S1000\r");
    serialPort1.Write("#4 P1000 #3 P1100 #5 P1000\r");
   serialPort1.Close();

}
catch (Exception ex)
{
    MessageBox.Show("Couldn't open the Serial Port!"); 
    MessageBox.Show(ex.ToString());
}

Kurt

6

Problem not solved, this is exceptional I can use same code to run on first button event, but can’t run on second button event.

7

We’ll just have to guess what he’s programming on. PIC? Arduino??

Alan KM6VV

8

Probably VB. Can not debug more until see current stuff. Previous stuff had issues with how the Try/Catch blocks was setup .

Kurt

P.S - Trying the new Quick Reply?

9

The new quick reply?

Alan KM6VV

10

It is either new to me or I never noticed it before… Or only some of us now have it. But in both of the profile types (prosilver, subsilver2), there is either a new button or a new sub-dialog at the bottom for Quick Reply…

But: enough hijacking of this thread.
Kurt

11

(Pssst. Yes, the quick reply is new! I just enabled it yesterday.)