Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 446

Delayed Short set_laser_timing
List Command
Function defines the output period and the pulse lengths for the laser signals LASER1 and LASER2
for "laser active" operation.
Call
set_laser_timing( HalfPeriod, PulseLength1, PulseLength2, TimeBase )
Parameters
HalfPeriod
PulseLength1
(PulseLength2)
TimeBase
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
half of the output period in bits as an unsigned 32-bit value
®
• In RTC 5 mode:
1 bit equals 1/64 µs. Permissible range: [0 ... (2
®
• In RTC 4 compatibility mode:
1 bit equals 1/8 µs or 1 µs, depending on the selected time base.
With respect to the specified TimeBase, the value will be converted to
an integer-multiple of 1/64 µs. The permissible range is correspond-
ingly smaller.
Pulse lengths of the laser signals LASER1 and LASER2 in bits as an
unsigned 32-bit value.
®
• In RTC 5 mode:
1 bit equals 1/64 µs. Permissible range: [0 ... (2
®
• In RTC 4 compatibility mode:
1 bit equals 1/8 µs or 1 µs, depending on the selected time base.
With respect to the specified TimeBase, the value will be converted to
an integer-multiple of 1/64 µs. The permissible range is correspond-
ingly smaller.
(as an unsigned 32-bit value)
The value of PulseLength2 will be ignored and is no longer used.
®
With the RTC 5, the pulse lengths of laser signals LASER1 and LASER2
are always identical and are definable via PulseLength1.
as an unsigned 32-bit value
®
• In RTC 5 mode, the value is ignored and the clock frequency is fixed
at 64 MHz (1 bit equals 1/64 µs).
®
• In RTC 4 compatibility mode, the TimeBase value is handled as
follows:
=0: sets the time base to 1 MHz (1 bit equals 1 µs)
0: sets the time base to 8 MHz (1 bit equals 1/8 µs)
32 –
1)]
32 –
1)]
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