Receiving a string Serially

Comments

• bill190 Posts: 769

  2010-06-28 00:18 edited 2010-06-28 00:18

  If on a PC, with a serial "Terminal"·program like Parallax Serial Terminal, Hyperterminal, Realterm, etc.
• kt88seamp Posts: 112

  2010-06-28 00:23 edited 2010-06-28 00:23

  I am using another propeller to receive the string.
• kuroneko Posts: 3,623

  2010-06-28 00:24 edited 2010-06-28 00:24

  What's wrong with simply reading the incoming characters (and displaying them)?
• wjsteele Posts: 697

  2010-06-28 00:26 edited 2010-06-28 00:26

  There are great examples in the Obex. Take a look at the Propeller Serial Terminal Demo and the GPS Demos.
  
  They both show how to read from a serial input.
  
  Bill
• kt88seamp Posts: 112

  2010-06-28 00:26 edited 2010-06-28 00:26

  I am not displaying them. I am doing string compare operations.
• kuroneko Posts: 3,623

  2010-06-28 00:28 edited 2010-06-28 00:28

  kt88seamp said...
  I am not displaying them. I am doing string compare operations.

  Well, then simply store them in a byte array. You might want to introduce some kind of End-Of-String character so that you receiver knows when to stop.
• JonnyMac Posts: 9,550

  2010-06-28 01:43 edited 2010-06-28 01:43

  Perhaps something like this:
  
  

  pub rxstr(pntr) | c
  
    bytefill(pntr, 0, 32)
  
    repeat
      c := serial.rx
      if (c == 13) or (c == 0)
        quit
      else
        byte[noparse][[/noparse]pntr++] := c
  

  
  
  This assumes you have a 32-character buffer (array of bytes) at the address indicated by pntr, and an object called serial that has an rx method (like FullDuplexSerial).
  
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  Hollywood, CA