Instruction manual
Guppy PRO Technical ManualV4.1.0
74
Camera interfaces
To enable the PWM feature select output mode 0x09. Control the signal state via
the PulseWidth and Period fields (all times in microseconds (μs)).
PWM: minimal and maximal periods and frequencies
In the following formulas you find the minimal/maximal periods and frequen-
cies for the pulse-width modulation (PWM).
0xF1000808 IO_OUTP_PWM2 Same as IO_OUTP_PWM1
0xF100080C
0xF1000810 IO_OUTP_PWM3 Same as IO_OUTP_PWM1
0xF1000814
0xF1000818 IO_OUTP_PWM4 Same as IO_OUTP_PWM1
0xF100081C
Figure 33: PulseWidth and Period definition
Note
Note the following conditions:
•PulseWidth Period
• Period MinPeriod
Formula 1: Minimal/maximal period and frequency
Register Name Field Bit Description
Table 32: PWM configuration registers
PulseWidth
Period
period
min
3 μs=
frequency
max
1
period
min
------------------------
1
3 μs
---------
333.33 kHz===
frequency
min
1
2
16
6–
10 s
---------------------------
15.26 Hz==
period
max
1
frequency
min
--------------------------------
2
16
μs==