Difference Calculation

[cgs1960]

Hi!  I have two signals, represented as 16 bit doubles, let’s call them A and B.  These signals are read inside of a WHILE loop.  I would like to calculate An-An-1 and Bn-Bn-1, where An and Bn are the values of A and B at the nth iteration of the WHILE loop and An-1 and Bn-1 are the values of A and B during the n-1 iteration of the WHILE loop.  Looking for guidance.  Thanks!

[johnsold · Accepted solution]

Use two shift registers. Look at the help files or the online Getting Started tutorials for more information.

Lynn

[Taki1999]

Look at the Help for Shift Register or Feedback node.