PORTS Forum

Ports and Interfaces => Serial Ports => Topic started by: GlennP on January 11, 2012, 10:53:34 am

Title: Some things gone wrong.....I think.
Post by: GlennP on January 11, 2012, 10:53:34 am

Hi All,

I'm guessing this is the right place for this but in an app to interface to a board I have found an oddity,
the boards returns :

UD:0010=H2000950463700045160077129#0D#0D

this is picked up by my code as

UD:0010=H2000950463700045160077129 >23

it appears that the following happens the data comes back (why there is two line feeds I can find out my end) but #0D changing into ' >23' is a little strange, I would be expecting a 23 as thats the hex for #
but  space > or 20h 62h leaves me a little worried at the event handler

 private void port_DataReceived_1(object sender,SerialDataReceivedEventArgs e)   
        {
           // MessageBox.Show("Here!!");
          InputData = myComPort.ReadExisting();
          if (InputData != String.Empty)
          {
            this.BeginInvoke(new SetTextCallback(SetText), new object[]{ InputData});
          }
             
        }  the set text function is

       private void SetText(string text)
        {
            this.rtbIncoming.Text += text;
            if (text.Contains("OK"))
            {
                return;
            }
            if (text.Contains("ERR - No Data"))
            {
                MessageBox.Show("ERR - No Data");
            }
            if (text.Contains("UD:"))
            {
                rtbIncoming.Text += '\r' + '\n';
                ProcessReturnedData();
            }

         
        }
         
     void ProcessReturnedData()
    {
       rtbReturnedData.Text += rtbIncoming.Text+'\r'+'\n';
    }

Title: Re: Some things gone wrong.....I think.
Post by: Jan Axelson on January 11, 2012, 11:16:44 am

Check your Encoding. See this discussion:

http://www.lvr.com/forum/index.php?topic=683.0

Jan

Title: Re: Some things gone wrong.....I think.
Post by: GlennP on January 11, 2012, 11:39:59 am

Thanks I will look that over when I get chance!

Glenn