serial data

Comments

• tomcrawford Posts: 1,126

  2017-09-30 19:35

  what processor, language?
• RS_Jim Posts: 1,753

  2017-09-30 19:36

  Prop, spin
  Jim
• Phil Pilgrim (PhiPi) Posts: 23,514

  2017-09-30 19:49

  You could send them as decimal data using "Parallax Serial Terminal.spin" and the dec method. Or you could use its hex method.
  
  What does the receiving system expect? Or is it flexible?
  
  -Phil
• RS_Jim Posts: 1,753

  2017-09-30 20:03

  The receiver is running serial4port and can be flexable. I will lookinto the code for the DEC method to see what it is sending. I had not even thought of that. I definately like the HEX method Idea.
• JonnyMac Posts: 8,923

  2017-10-01 00:33 edited 2017-10-01 00:50

  Two, 10-bit values will require a minimum of four bytes to transmit unless you want to do some packing and unpacking. Here's an easy method that will send two, 10-bit values.
  

  pub tx_values(val0, val1) : idx
  
    val0.word[1] := val1
    repeat 4
      serial.tx(val0.byte[idx++])
  

  If you decide to use the DEC method, you will have a stream of two (both values less than 10) to eight (both values more than 999) bytes. It's not hard to parse decimal values, but you'll need to insert a separator so that you know where one value ends and the other begins.
  
• RS_Jim Posts: 1,753

  2017-10-03 14:26

  Thanks for the input Jon. I am still trying to sort through exactly what is happening at each step.
  Jim