parallel port

Wed, 13 Jun 2001 09:49:04 -0700

Title: I try to communicate from MC with external analyser apparatus

I tried to connect MC with my external analyser apparatus. I am able to write and read on a serial port (COM1:, COM2:, ...):

-------------------

on mouseUp ## script button = start reading data

  global lecture

  put empty into field "res"

  set the serialcontrolstring to "BAUD=9600 PARITY=N DATA=8 STOP=1 xon=on odsr=on"

  open file "COM1:" for update

  write "R" to file "COM1:"

  put true into lecture

end mouseUp

 

on idle ## on stack

  global lecture

 

  if lecture is true

  then

    read from file "COM1:" until cr&cr

    put it after field "res"

  end if

end idle

 

on mouseUp ## script button = stop reading data

  global lecture

 

  put false into lecture

  close file "COM1:"

end mouseUp

-------------------

 

Now, I have no idea about the protocol that I can use when the apparatus is plug on the parallel port. I want to know how I can do it, from MC, to read data and control devices through group of inputs and digital outputs on the parallel port.

 

Thanks for any help,

 

Mathias

 

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