Hello,
I'm building a system that combines a mashine vision component (CMOS/Camera Link camera, 1428 board) and a galvo scanner driven by PCI-6731 analog board. I have LabView 7.1 and Vision module. I need to precisely sync the galvo with the camera in a following matter: the galvo must scan start motion at the beginning of a frame acquisition and stop at the end of frame acquisition in a single frame acquisition mode.
Before I was using a Epix Camera Link interface where I had a physical access to FVAL signal from the board. I was using this TTL signal to (i) trigger my galvo and (ii) measure the frame duration to adjust my galvo driving signal. For my new 1428/6731 combo I'm planning to use RTSI to trigger my galvo, but it is still unclear how I can reliable measure the frame duration since 1428 does not provide FVAL output. I need to know the FVAL duration with ~ 0.1% accuracy, i.e. ~ 0.1 ms.
Questions:
1. Is there any way to get an access to analog FVAL signal from 1428?
2. Is there any way to measure the FVAL duration with required accuracy using LabView?
I would appreciate any suggestions. Thanks.
Pavel