When we were testing the ‘Trigger In’ signal, we found some phenomenon that bothered us:
- Situation Description
We set the EVM in the ‘Internal Patterns’ mode, and let the ‘R’ LED channel work at the current 1A.
Let ‘Trigger In’ option enable in the GUI(as shown in the picture of GUI).

- Test&Problem
At the working condition above, we make the EVM to ‘Run Continuously’ and then supply the ‘Trigger In’ port a high level signal with 3.3V (as shown in the picture marked with a yellow circle).
The problem was that the EVM did not work and no pattern projected out. We have tried to turn off and on the power for several times, but the EVM performed the same.

We wondered why the Trigger In Signal did not make the projector work?
Regards,
Alex