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QuickCam User’s Manul
03-032-10187-04
DALSA
corp.
input signal. If a frequency lies between two different granularity settings, the
lowest setting will yield a better precision. The possible values are:
1 PCI clock cycles
: The frequency of the input signal is between 509Hz and
33.3MHz.
4 PCI clock cycles
: The frequency of the input signal is between 128Hz and
8.3MHz.
16 PCI clock cycles
: The frequency of the input signal is between 32Hz and
2.08Mhz
256 PCI clock cycles
: The frequency of the input signal is between 2Hz and
130.2kHz
Multiplicator
The multiplier applied to the input frequency. The possible values are:
•
Frequency is multiplied by 256
•
Frequency is multiplied by 16
•
Frequency is multiplied by 4096
Divider
The divider applied to the input frequency. The resulting frequency is computed
as follows:
divider
tor
multiplica
frequencyx
input
frequency
output
_
_
=
Input Selection
Indicates which label in the GPIO LUT will be associated with the rescaler. Make
sure you select an input label that is not being used for its default behavior. For
example, Q9 is used to send a trigger to pulse generator 0. If pulse generator 0 is
used in triggered mode, then it will be triggered by Q9 and cannot be used as the
input for the rescaler. The possible values are: Q3, Q7, Q8. Q9, Q10, Q11, Q16,
and Q17.
Backup Enabled
Indicates if the rescaler will use a back-up input source if its main source stops its
activity.
Backup Window
Specifies the window of time during which there can be no activity from the
main input source before the rescaler switches to the back-up source. As soon as
activity is detected, the rescaler returns to its main input source.
Backup Input
Same as the main input source
Target Frequency
Helper parameter that computes the best rescaler value of a given target
frequency.
Recommended Granularity
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