About
  =====
  
  This is a test application for a digital to analog converter (DAC).
  
  This test application tries to initialize every available DAC line. If
  successful, it will output a saw tooth pattern with a period of about 10Hz on
  each of the available lines.
  
  Usage
  =====
  
  Connect an oscilloscope to the DAC pins and look at the signal levels (you
  should be able to clearly see the saw tooth signal in your scope)