Kvaser Memorator Pro 5xHS User’s Guide
19 (27)
•
If it is set to trigger on a falling edge, the trigger is activated when the
External trigger is connected to ground.
•
If it is set to trigger on a rising edge, the trigger is activated when the External
trigger is disconnected from ground.
There are two ways to create such an external signal, either connect a switch from
the External trigger input on CAN channel 1 to ground or connect a signal between
0 and 5 V to the External trigger input. See Section 4.4, CAN connectors, on
Page 16 for pin numbering.
The trigger input is debounced by the firmware so that a pulse of shorter length
than approximately 30 ms will not be detected.
Figure 9: Example of how to connect a button to the External trigger input.
Internally, the External trigger input has a pull-up to +5 V, see Figure 10
Figure 10: The External trigger input inside the Kvaser Memorator Pro 5xHS.
Kvaser AB, Mölndal, Sweden — www.kvaser.com