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DLP670S: Change LED PWM inside pattern sequence

Mark Brannan
Prodigy 10 points
Part Number: DLP670S

I am looking to change the LED PWM at each step of my sequence in "pattern on the fly" mode. My ideal solution would be to enter a PWM value for each image using the built-in sequencer within the GUI.

The GUI as-is does not seem to support this functionality. I cannot enter PWM values per step and cannot find a way to do so within the GUI itself or from reading the documentation.

Another route would be using a batch file to change the LED PWM and output image one after another then run this as a loop (much like the factory test image loop loaded onto the device).

I am able to change the PWM to various values as part of a batch command, but I am unsure how to set output images this way. If I can figure out the correct batch file command to load an image I think I can produce what I want by interspersing the PWM outputs with image updates.

Any help is appreciated.

  • 0
    TI__Mastermind 43135 points

    Mark,

    The LED PWM is for initialization of the LED drivers at particular current values, and was not intended for changing LED current from pattern to pattern.

    We are unable to guarantee the LED driver response on this short of a time scale.

    You can create a batch file that will load an image an run it and then stop, but you would need to have a way to run the consecutive batch files.

    You could string the batch files together into a long batch file, but I do not know if you will have to issue a stop before adjusting each 

    Fizix