SCOPE: To sync two IMX cameras running in frame triggered (sequential) mode using the strobe output sync_gen function of the camera.
Note 1: Requires a custom trigger cable provided by ISG. This cable connects strobe output 1 of the master camera to the trigger input of both the master and slave cameras.
Note 2: Because the cameras need to be run in Single Frame Mode, the sensor integration and readout are done sequentially. In other words, the frame time has to allow for sensor integration followed by sensor readout. The following formula can be used to calculate the integration time for a given ROI and frame rate:
max int time = frame time - sensor read time; (where sensor read time = (ROILines+46)*220/37.125MHz)
Example #1 @ frame rate = 60 Hz and full frame readout:
Max Integration time = (1/60) - 2094*220/37.125MHz = 4.25 ms
Example #2 @ frame rate = 30 Hz and full frame readout:
Max Integration time = (1/30) - 2094*220/37.125MHz = 20.9 ms
MASTER CAMERA SETUP
Acquisition Control:
- Acquisition Mode = single frame
- Trigger Source = line0
- Trigger Mode = on
- Exposure Time = integration in uS (See Note 2)
Digital IO Control:
- Strobe Selector = strobe 1
- Strobe source = pulse generator
- Strobe Duration = 16666 (period of desired frame rate frequency in uS)
- Strobe Delay = 200 (high time of sync signal output in uS)
- Pulse Mode Enable = on
SLAVE CAMERA SETUP
Acquisition Control:
Acquisition Mode = single frame Trigger Source = line0 Trigger Mode = on Exposure Time = integration in uS (See Note 2)
