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Xtium2-CLHS PX8 Reference
Xtium2-CLHS PX8 User's Manual
board acquisition hardware. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_START_OF_FRAME.
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End of Frame
Event generated during acquisition, with the detection of the end of a video frame by the
board acquisition hardware. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_END_OF_FRAME.
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Data Overflow
The Data Overflow event indicates that there is not enough bandwidth for the acquired data
transfer without loss. Data Overflow would occur with limitations of the acquisition module
and should never occur.
The Sapera event value is CORACQ_VAL_EVENT_TYPE_DATA_OVERFLOW.
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Frame Valid
Event generated on detection of the start of a video frame by the board acquisition
hardware. Acquisition does not need to be active; therefore, this event can verify a valid
signal is connected. The Sapera event value is:
CORACQ_VAL_EVENT_TYPE_VERTICAL_SYNC.
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Link Lock/Unlock)
Event generated on the transition from locking or not locking, of the required lanes. The
Sapera event values are:
CORACQ_VAL_EVENT_TYPE_LINK_LOCK
CORACQ_VAL_EVENT_TYPE_LINK_UNLOCK.
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Frame Lost
The Frame Lost event indicates that an acquired image failed to transfer to on-board
memory. An example is if there are no free on-board buffers available for the new image.
This may be the case if the image transfer from onboard buffers to host PC memory is not
sustainable due to bus bandwidth issues or no host buffers are available to receive an
image.
The Sapera event value is CORACQ_VAL_EVENT_TYPE_FRAME_LOST.
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External Line Trigger Too Slow
Event which indicates that the detected shaft encoder input tick rate is too slow for the
device to take into account the specified shaft encoder multiplier value. The Sapera event
value is CORACQ_VAL_EVENT_TYPE_EXT_LINE_TRIGGER_TOO_SLOW.
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Line Trigger Too Fast
Event which indicates a previous line-trigger did not generate a complete video line from
the camera. Note that due to jitter associated with using shaft encoders, the acquisition
device can delay a line trigger if a previous line has not yet completed. This event is
generated if a second line trigger comes in while the previous one is still pending. This event
is generated once per virtual frame. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_LINE_TRIGGER_TOO_FAST.
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Shaft Encoder Reverse Count Overflow
Event which indicates that the shaft encoder has travelled in the opposite direction expected
and that the number of pulses encountered during that travel has exceeded the acquisition
device counter. The acquisition device will thus not be able to skip the appropriate number
of pulses when the expected direction is detected. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_SHAFT_ENCODER_REVERSE_COUNT_OVERFLOW
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Camera Missed Trigger
Event which indicates that the camera could not respond to a trigger request as it was busy
servicing a previous trigger request. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_CAMERA_MISSED_TRIGGER
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Camera Overrun
Event which indicates that the camera data and/or video has been corrupted due to
insufficient buffer space in the camera. The Sapera event value is
CORACQ_VAL_EVENT_TYPE_CAMERA_OVERRUN
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Link Error
Event which indicates that an error has occurred on one or more of the lanes. Information
about the source of the link error and the number of occurances of this error can be
retreived using the SapAcqCallbackInfo class.
