Synchronization Timing
Genie supports two types of sensor synchronization used to align the exposure to sensor timing:
•Synchronous Mode: Exposure is synchronous to the line timing of the sensor. Exposure granularity is 1µs and the readout can be concurrent to the exposure for the fastest possible frame rate.
•Reset Mode: Timing is reset to initiate exposure of next frame. Exposure granularity is 1µs, but readout must be sequential to exposure, reducing the maximum achievable frame rate.
Synchronous Mode
•Synchronous mode starts the exposure period aligned to the sensor horizontal line timing and the programmable duration granularity is 1µs.
•In the case of the Genie M640, a horizontal line occurs every 31.77µs.
•Exposure duration is from a minimum of 100µs up to 4 sec.
•In this mode, sensor exposure and sensor readout of the previous frame's exposure occur simultaneously. This allows operating the sensor up to its maximum frame rate.
•Any trigger received before the end of the exposure is ignored. The application can elect to receive messages about ignored triggers. See "Events" on page 63.
•Since the external trigger is asynchronous with the Genie horizontal line timing, the frame exposure start is subject to 1 horizontal line jitter.
Synchronous Mode Timing example for Genie M640
46 • Operational Reference | Genie Monochrome |
