SonixDAQ with External Clock

To use the external clock with the DAQ, you need to
 * Initialize the DAQ normally (do not connect the external clock, this is not needed for the initialization step)
 * Once DAQ is initialized, connected the 40MHz BNC clock (you need to make sure that you provide a 40MHz clock to the DAQ. Otherwise, DAQ will not work. This is an expected behaviour. To make sure you have the 40MHz clock, you need to check your BNC with scope prior to connecting it to the DAQ).
 * Run the DAQ normally