wait until done

[kbera]

my application needs to generate and acquire data simultaneously using external trigger and external clock. For generation sesion 'wait until done' command  is used for sensing the external trigger. But it prevents to configure acquisition session as the command holds the control of the program. Please suggest a solution.

[crossrulz]

It would really help us help you if you could supply some code.

But it sounds like you have everything in a single loop.  What you should probably do is have two loops, one for signal generation and a second for data acquisition.  That way, the acquisition loop can just keep acquiring the data independently of the generation loop.