Dear Fabio,
I will generate an example design that controlls the sensor exposure duration on trigger pulse length.
As soon as done I will post it here.
Best regards
Dear Fabio,
What platform are you intending to use?
Best regards
Dear Fabio,
Thank you. I will use that target platform for your example.
Me5 Marathon VCL
Best regards,
Dear Fabio,
Mode: CL BASE, 2 Taps, Monochrome, 8 bit Depth
Thank you for the quick answer; will use this as default configuration.
Best regards
Dear Fabio,
Here you can find a complete "auto exposure control" on basis of closed loop P-regulator.
Download: ExposureControl_StateMachine_B.Rudde.va
In the initial post you asked for fixed steps for control, you can see internal value P as fixed value,
but please see the large amount of comments within the design for more details.
So your design includes a loop, but can be simulated in VA except the real camera feedback.
But you can use any kind of sequence to see how the P-regulator is acting.
A later post will give more explanation.
The question of state machine is a shorter answer:
Rx- and TxSignalLink make it possible to build a signal based state machine,
or if you require values and simulation for it, please use:
RxImageLink and TxImageLink.
Best regards,
Dear Fabio,
Here some explanations on the VA design related to auto exposure... ExposureControl_StateMachine_B.Rudde.va
Download: ExposureControl_StateMachine_B.Rudde.va
A later post will give more explanation.
Full overview:
The points of interest are the 3 hierarchical boxes: RxExposure, BrightnessMismatch, NewExposure
Each listed with comments below:
BrightnessMismatch, if auto exposure want to work, we need to know how "bright" the image is.
Here you can set the target value for histogram mean into TargetHistMeanValue, preset = 127.
The function extracts the mean value from full histogram:
NewExposure, based on the brightness mismatch to target value and the last used exposure value the new one is calculated on basis of simple closed-loop control with P element only. More to read in the commenst within the VA design:
Basics of loop:
Regulator details:
RxExposure, simply receiving the new exposure value and forwarding it to pulse generation:
I hope the listed VA design shows what you are asking for. In case of questions do not hesitate to contact me or press the like button 
in case there are no questions to this VA design sketch.
Best regards,
Dear Fabio,
The operator is new and due to being unknown to VA 3.0.1 is is getting replaced by dummy:
ExtractResult Box I get GetResult as Dummy
Solution:
Please download the most current VA version:
Best regards,
