startTTTR, parameters for T2 and T3 mode

The following attributes are needed to start the T2 or T3 mode. They are taken from the demo code tttrmode.c provided by PicoQuant. Given are the attribute names and the setter functions.

• HH_calibrate(), this is not a attribute but it is invoked before the parameters are set.

• syncDiv, HH_setSyncDivider(), (1, 2, 4, .., SYNCDIVMAX)

   
  Manual: 
  The sync divider must be used to keep the effective sync rate at values lessEqual 12.5 MHz. 
  It should only be used with sync sources of stable period. Using a larger divider 
  than strictly necessary does not do great harm but it may result in slightly larger 
  timing jitter. The readings obtained with HH_GetCountRate are internally corrected 
  for the divider setting and deliver the external (undivided) rate. The sync divider 
  should not be changed while a measurement is running.
  

• CFDDiscriminatorLevel, zerox, HH_SetSyncCFD()

   
  CFD discriminator level in millivolts, between DISCRMIN, DISCRMAX
  
  CFD zero cross level in millivolts, between ZCMIN, ZCMAX
  

• syncChannelOffset, HH_SetSyncChannelOffset()

   
  sync timing offset in ps, between CHANOFFSMIN, CHANOFFSMAX
  

• inputCFDDiscrLevel, inputCFDZeroCrossLevel, HH_SetInputCFD()

   
  CFD discriminator level in millivolts, between DISCRMIN and DISCRMAX
  
  CFD zero cross level in millivolts, between ZCMIN and  ZCMAX
  

• inputChannelOffset, HH_SetInputChannelOffset()

   
  channel timing offset in ps, between CHANOFFSMIN and CHANOFFSMAX
  

• T3 mode

  In T3 mode, binning and offset are additionally set.

  • binning, HH_SetBinning()

     
        measurement binning code, minimum = 0 (default = smallest, i.e. base resolution)
        maximum = (MAXBINSTEPS-1) (largest)
    

  • offset, HH_SetOffset()

     
        histogram time offset in ns, between OFFSETMIN (0, default) and maximum = OFFSETMAX