Pike
Technical
Manual
V5.2.3
94
Camera interfaces
Camera
interfaces
PWM: minimum and maximum periods and frequencies
In
the
following
formulas
you
find
the
minimum/maximum
periods
and
frequencies
for
the
pulse-width
modulation
(PWM).
PWM: Examples in practice
In
this
chapter
we
give
you
two
examples,
how
to
write
values
in
the
PWM
registers.
All
values
have
to
be
written
in
microseconds
(µs)
in
the
PWM
registers,
therefore
remember
always
the
factor
10
-6
s.
Figure 31: PulseWidth and Period definition
Note
Note
the
following
conditions:
•
PulseWidth
Period
•
Period
MinPeriod
Formula 1: Minimum/maximum period and frequency
PulseWidth
Period
period
min
3μs
=
frequency
max
1
period
min
---------------------
1
3μs
-------
333.33kHz
=
=
=
frequency
min
1
2
16
6
–
10 s
-----------------------
15.26Hz
=
=
period
max
1
frequency
min
-----------------------------
2
16
μs
=
=
