Camera interfaces
80
Mako U Technical Manual V1.1.3
Non-isolated, programmable GPIOs
GPIOs description
The camera has two non-isolated GPIOs that can be configured by software to act
as inputs or outputs. These GPIOs have a shorter delay than opto-isolated I/Os.
Notice
Avoid damage to the camera, PC, or peripherals by ground loops
•
Mount the camera electrically isolated to avoid ground loops.
•
Figure 31: GPIOs, block diagram
Physical and logical lines
•
For
input use
, a physical high level is a logical high in Vimba.
•
For
output use
, a logical high in Vimba is a physical low level due to the open
collector output circuit.
Inverting the logical signal level
To ease camera control, invert the logical signal level with the
LineInverter
feature. See
USB Features Reference
at
Additional Documents
for the Mako U
camera:
https://www.alliedvision.com/en/support/technical-documentation
.
Logical input signal
Vimba input value
Voltage level
Active
High
High
No signal
Low
Low
Not connected
High
High
Table 34: GPIOs as input, physical and logical lines
In
GPIO
Pin 1 / Pin 2
Non-isolated GND
Pin 6
Out
External
Internal
External supply voltage
R
ext
i
