title: Timer triggering in QT
body: <p>I am a starter programmer - QT is new to me.</p>
  
  <p>The overall task:
  Need to generate a square wave signal using NI BNC2110 DAQ and controlled by QT creator. I am accessing the daq using DAQmx driver. Thus, I can set the digital output on the daq buy writing to it.</p>
  
  <p>The approach:
  In order to generate a square wave, I would just toggle the digital output on the daq by periodically writing 0 or 1 to the output. So, I need some kind of trigger that will do it periodically. There is only one thing that comes to my mind - using some kind of interrupts (i remember using such interrupts when programming microcontroller - the clock, when reaching some value, would trigger the interrupt).</p>
  
  <p>If anyone could give me a hint on how to solve this problem. (I wish to run triggering at 1-10Mhz, so at least microsecond resolution is desirable)</p>
  
  <p>Thank you very much in advance</p>