Frequently Asked Question
External trigger via Frame Grabber GPIO
Last Updated 3 years ago
Steps to implement camera triggering via external Frame Grabber GPIO:
1. Connect trigger source to dedicated pins on the GPIO of the Frame Grabber.
You can find more information about GPIO pinout in the device's specific "...HW and Installation Guide" document.
2. Select the GPIO using "LineSelector" and configure related parameters.
You can find more information in "KAYA Frame Grabber Feature Guide" document.
3. (Optional) Make sure that the trigger arrives at the Frame Grabber by checking the "LineStatusAll" (see image below). Changes in the trigger state can be seen by refreshing the "LineStatusAll" parameter value (if no changes are observed, it may be because the trigger is too fast. Reduce the trigger frequency to check the trigger changes, and return it to the desired state for regular operation).
4. Configure the Camera the work in trigger mode instead of continuous acquisition. Usually, this can be achieved by setting "TriggerMode" to "On", but this configuration is camera-specific therefore may require additional configurations.
5. Redirect the connected Frame Grabber trigger from the GPIO to the camera trigger.
You can achieve basic trigger generation from the Frame Grabber towards the camera by setting "CameraTriggerMode" to "On", "CameraTriggerActivation" to "AnyEdge" and "CameraTriggerSource" to the GPIO input (see image below). You can find information on more advanced configurations in the "KAYA Frame Grabber Feature Guide" document.
Examples:
You can find more examples for trigger configuration in https://support.kayainstruments.com/kb/faq.php?id=27
Remarks:
The Frame Grabber stream trigger ("Trigger Control") should not be enabled with the camera trigger ("Camera Trigger Control"); this may cause a collision between the two trigger logics, which may result in unexpected behavior.
1. Connect trigger source to dedicated pins on the GPIO of the Frame Grabber.
You can find more information about GPIO pinout in the device's specific "...HW and Installation Guide" document.
2. Select the GPIO using "LineSelector" and configure related parameters.
You can find more information in "KAYA Frame Grabber Feature Guide" document.
3. (Optional) Make sure that the trigger arrives at the Frame Grabber by checking the "LineStatusAll" (see image below). Changes in the trigger state can be seen by refreshing the "LineStatusAll" parameter value (if no changes are observed, it may be because the trigger is too fast. Reduce the trigger frequency to check the trigger changes, and return it to the desired state for regular operation).
4. Configure the Camera the work in trigger mode instead of continuous acquisition. Usually, this can be achieved by setting "TriggerMode" to "On", but this configuration is camera-specific therefore may require additional configurations.
5. Redirect the connected Frame Grabber trigger from the GPIO to the camera trigger.
You can achieve basic trigger generation from the Frame Grabber towards the camera by setting "CameraTriggerMode" to "On", "CameraTriggerActivation" to "AnyEdge" and "CameraTriggerSource" to the GPIO input (see image below). You can find information on more advanced configurations in the "KAYA Frame Grabber Feature Guide" document.
Examples:
You can find more examples for trigger configuration in https://support.kayainstruments.com/kb/faq.php?id=27
Remarks:
The Frame Grabber stream trigger ("Trigger Control") should not be enabled with the camera trigger ("Camera Trigger Control"); this may cause a collision between the two trigger logics, which may result in unexpected behavior.