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  1. #1
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    Use more then 1 varaible

    Hi i've been using phidget cards and real studio for some time but
    now that it was time for a expansion I thought let me use the Opencockpit card.
    And I can use some help. I want to manage some leds. The leds on or of depend on
    more than 1 function.

    Var 2, Link FSUIPC_IN Offset $3340, Length 4
    var 3, Link FSUIPC_IN offset $092C, length 2
    var 4, link FSUIPC_IN offset $3344, length 4 // need this one also
    {
    L0 = TESTBIT V2,14
    if L0 = 0
    {
    &leds2 = 0
    &leds3 = 0

    }
    else

    L1 = TESTBIT V3,0
    if L1 = 1
    {
    &Leds2 = 0
    &leds3 = 0

    }
    else
    {
    &leds2 = 1
    &leds3 = 1
    &Leds4 = 1

    }
    }
    var 5, name Leds2 link iocard_out, output 15
    var 6, name Leds3 link iocard_out, output 13

    I seem to miss something because it's not working. I hope some one can help
    to show how to use more then 1 varaible to manage the led.
    regards and thnx,
    henri

  2. #2
    2000+ Poster - Never Leaves the Sim kiek's Avatar
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    Re: Use more then 1 varaible

    Hi henri,

    It does not work because your program does nothing if Var 2 or Var 3 changes value.
    You have to take an approach like this (call a subrutine if one of the related variables changes, and in that subroutine you set the leds according to the states of these variables):

    Code:
    Var 2, Link FSUIPC_IN Offset $3340, Length 4 
    {
      CALL &CtrlLeds
    }
    
    var 3, Link FSUIPC_IN offset $092C, length 2 
    {
      CALL &CtrlLeds
    }
    
    var 4, link FSUIPC_IN offset $3344, length 4 // need this one also
    {
      CALL &CtrlLeds
    }
    
    
    Var 10 Link SUBRUTINE Name CtrlLeds
    {
      L0 = TESTBIT V2,14
      if L0 = 0
      {
        &leds2 = 0
        &leds3 = 0
      }
      else
      {
        L1 = TESTBIT V3,0
        if L1 = 1
        {
          &Leds2 = 0
          &leds3 = 0
        }
        else
        {
          &leds2 = 1
          &leds3 = 1
    //      &leds4 = 1   not defined ?
        }
      }
    }
    
    var 5, name Leds2 link iocard_out, output 15
    var 6, name Leds3 link iocard_out, output 13
    And I think you have to take Var 4 into account as well (in the subroutine).


    regards,
    Nico

  3. #3
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    Re: Use more then 1 varaible

    OK so that's how it works. Great and thanks for pointing the right direction.
    regards,
    Henri