Brain Imaging & Analysis Center

usage: r_wait opflg eflag ltime TimeVal Flag

Wait until time TIMEVAL. This command makes it possible to control the timing of a program based on time intervals stored in a data variable. Whereas the LTIME argument for most REALTIME commands is evaluated when the realtime program is compiled (and is therefore treated as a constant), the TIMEVAL argument to R_WAIT is evaluated at runtime and therefore can take on different values at different times.

The FLAG argument can be used to make the specified TIMEVAL a relative time, as follows:

    FLAG = 0   - time is relative to last R_RESET,or start of program
                 if no R_RESET (this is default)
           1   - time is relative to previous operation
           2   - time is relative to start of most recent R_REPEAT loop

For this command the value of the LTIME argument is ignored. HOWEVER, specifying a LTIME argument that is preceded by a '+' (e.g. +0) causes the TIMEVAL argument to be treated as a relative wait. This is treated exactly the same as specifying FLAG=1.

See Also:
CIGAL Home, CIGAL Manual, RealTime List, Manual Help