Pulse Synchronization Mode - Scanlab RTC6 PCIe Board Installation And Operation Manual

7.4.11 Pulse Synchronization Mode

The Pulse Synchronization
• Delays the output of a LASER1 pulse until a new
clock signal pulse of the laser at
(1)
DIGITAL IN1 pin is detected, see also
• Is enabled by
set_laser_pulse_sync(
• Is disabled
by set_laser_pulse_sync(
Observe the following when selecting the parameter
values:
• By set_laser_pulse_sync(
LASER1 signal can be delayed by a fixed value.
Delay value must be  the period set by
The
– set_laser_pulses
– set_laser_timing
– set_laser_pulses_ctrl
– set_auto_laser_control
Delay value  (2 ×
• For a
set_laser_pulses), the following applies:
– The first LASER1 pulse is delayed by the
Delay
value
– The subsequent LASER1 pulse is ignored
• The LASER1 signal pulse length remains
unchanged and depends on the preceding
configuration (for example, by set_laser_pulses).
(1) At the LASER Connector, see
RTC6 boards
Doc. Rev. 1.0.21 en-US
7 Basic Functions for Scan Head Control and Laser Control
Mode:
Figure 61.
Mode
> 0 )
Mode
= 0 )
Delay
), the
HalfPeriod
from
Figure 17.
Notes
• The supplied clock signal must be a TTL signal.
The minimum pulse length or pulse pause of the
clock signal should be 80 ns. See also
Chapter 4.6.1 "LASER Connector", page
Section "2-Bit Digital Input Port", page
of set_laser_control, it can be set
• By Bit #5
whether to use the rising or falling edge of the
external clock for synchronization.
• Pulse Synchronization Mode
with "Spot Distance Control"
other variants of "Automatic Laser Control" such
as PulseLength or HalfPeriod, see
""Automatic Laser Control"", page
• Pulse Synchronization Mode
with Laser Mode 4 or Laser Mode
• Pulse Synchronization Mode
with laser modes that use LASER2 signal
(CO Mode, Pulse Picking Laser
2
Synchronization Mode
– It only affects the LASER1 signal
– It does not change the LASERON signal
– It does not change the LASER2 signal
• Pulse Synchronization Mode
combined with cycle synchronization, see
Chapter 7.4.10 "Synchronization of the RTC6
Clock Cycle and an External Clock Signal",
page 207.
73,
74.
can be combined
as well as with the
Chapter 7.4.9
197.
can be combined
6.
cannot be combined
Mode). Pulse
because:
should not be
208