User Manual

Camera interfaces
PIKE Technical Manual V5.1.2
127
PWM: Examples in practice
In this chapter we give you two examples, how to write values in the PWM regis-
ters. All values have to be written in microseconds (μs) in the PWM registers,
therefore remember always the factor 10
-6
s.
Example 1:
Set PWM with 1kHz at 30% pulse width.
Example 2:
Set PWM with 250 Hz at 12% pulse width.
Formula 2: PWM example 1
Formula 3: PWM example 2
RegPeriod
1
frequency
6–
10 s
------------ ----------- ----------- ----
1
1kHz
6–
10 s
------------- ----------- ---
1000===
RegPulseWidth RegPeriod 30% 1000 30% 300===
RegPeriod
1
frequency
6–
10 s
-------------- ----------- ----------- --
1
250Hz
6–
10 s
------------ ----------- -------
4000===
RegPulseWidth RegPeriod 12% 4000 12% 480===