Demo\DIO     : Digital input / output
     Wave     : Wave generator
     Eeprom   : Save eeprom data to file
     DA       : Ditital to analog
     SoftTrg  : AD polling with soft trigger no calibation
     Pacer    : AD polling with pacer trigger no calibation
     PacerCal : AD polling with pacer trigger with calibation
     
Calibration   : Calibation PIO-821
Each PIO-821 Series card is already fully calibrated when shipped from the factory,
so it is usually unnecessary to calibrate the board again unless the accuracy is lost.

LIB    : PIO-821 .LIB and .H

