ADLINK PCI-8164 - Manual (Page 102)

90 Operation Theory
ASIC. Data in Pre-Register2 is then moved to Pre-
Register1.
7. The ASIC will inform the CPU generating an interrupt
that a motion is completed. Users can then write the 4th
motion command into Pre-Register2.
Procedures for continuous motion (by interrupt)
The following procedures are to help user making continuous
motion.
1. (If under DOS): Enable the interrupt service using
_8164_int_contol()
(If under Windows): Enable the interrupt service using
_8164_int_contol() and _8164_int_enable().
2. Set bit “2” of INT factor to be “True” using
_8164_set_int_factor().
3. Set the “conti_logic” to be “1” by:
_8164_set_continuous_move()
4. Call the first three motion functions.
5. Wait for interrupt in ISR (under DOS) or Event (under
Windows) of 2nd pre-register empty.
6. Call the fourth motion function.
7. Wait for interrupt in ISR (under DOS) or Event (under
Windows) of 2nd pre-register empty.
8. Repeat steps 6 and 7 until all motion functions are
called.
Procedures for continuous motion (by polling)
Another method to determine a motion-completed action is by
polling buffer empty status. User may constantly check the
buffer status using the
_8164_check_continuous_buffer() function before call-
ing a new motion function.