Hello All,
I managed to get external trigger from my microscope to Lightcrafter4500 EVM
But I am having trouble with some LED background light.
Let me explain here. I am using Lightcafter4500 EVM (J10, Pin1 ref, Pin2 +ve, Pin 3 ground)
- Pattern sequence mode
- Sequence Settings ( I am selecting-- color, bit depth, External Trigger, clear DMD after exposure, Flash Index, G0, Add Pattern, then send). It all works!
- Pattern Sequence Start Validate sequence- it turns in to green indicator (Sequence validated). As I press ‘Play’ it starts the trigger projection (actually need to I press Play—Pause—Play, twice Play to get trigger working). It works as well. Just when the trigger is OFF there is still some LED light, it should be total black/dark between the trigger.
Qs-
1- What is causing the background LED current between the trigger signal?
2- Why I need to press Play --Pause-Play (play twice) to get trigger signal working?
FYI- I follow my input trigger from the microscope and DMD light output (via photo-diode) on an Oscilloscope. So, I can see the input trigger and DMD light output.
Thanks a lot in advance!
