RTC6 boards
Doc. Rev. 1.0.21 en-US
7 Basic Functions for Scan Head Control and Laser Control
189
Notes
• LASER1 signals and LASER2 signals are
– activated by:
HalfPeriod
0 and
PulseLength
0
– deactivated by:
HalfPeriod
= 0 and/or
PulseLength
= 0 (default setting after
load_program_file)
• The LASER2 signal is phase-shifted by half a signal
period in relation to the LASER1 signal. It can be
used for the control of a second laser tube. By
set_laser_control (Bit #1 = 1), both signals can
be exchanged with each other. To control laser
power, the pulse length of the LASER1 and
LASER2 signals can be varied. Both signals share
the same pulse lengths and periods.
• For the LASER1 signals and LASER2 signals, half
of the output period must be specified.
• set_laser_pulses and set_laser_timing are
delayed short list commands. They can also be
used to change the laser parameters between
two Mark Commands.
The time base for the signals is always:
– 1/64 µs in RTC6 Standard Mode,
see also Section ”RTC6 Standard Mode”,
page 168
– 1/8 µs in RTC4 Compatibility Mode,
see also Section ”RTC4 Compatibility Mode”,
page 168
• Pulse Completion, page 186 affects also
LASER2 signals.
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