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DLP3010EVM-LC: Internal Mode 1bit beam Pattern sequence, internal Mode, Pattern Sequence

LP Kim
Intellectual 350 points
Part Number: DLP3010EVM-LC

Dear TI Memembers 

I am checking the beam pattern sequence for internal mode and will captue pattern image under camera 30fps. 

[Remark] 

  1. Test Pattern set was used only for simple testing. 

    It was happen to silmilar issue when I used difference patttern configuration. 

  1. The same conditiond excpet of pattern configuration, 
  2. TI_Feedback_exposure time form TI DLP3010EVM-LC: Internal Mode, Exposure time Range - DLP products forum - DLP®︎ products - TI E2E support forums

Case 1)  1 Pattern Set x 4 Images 

Case 2) 1 Pattern Set x 1image , 4 Patterns 

 

Q1) It was displayed the incorrect beam pattern sequence under case1 conditions and saw the same issue under TI recommended Exposure time of the attached exposure table.

       It was displayed the correct beam pattern sequence using API sample code with the same conditions. 

      I think that it have nothing to do with it because it isn't happen to issue under API sample code and case 2 conditions. 

Q2) Becasue I will capture  under camera 30fps, Can I use  the exceed 1 bit internal mode exposure time over 127598[us] ? 

      If I can use the exceed exposure itme , I will modify pre/post exposure dark time with TI recomended exposure time range. 

  Pattern_Original_4images.zipPattern_Original_11images.zipTI_Internal Mode_Beam sequence.pdf

Thanks 

Best & Regards 

LP Kim 
  • 0
    TI__Expert 4920 points

    Hi Kim,

    I believe your first question is about the patterns being displayed out of order, please correct me if I am wrong. If this is the case please set your "pattern set entry index" = 0. We have seen this issue and are actively working on an update to resolve it. 

    Question 2: you may exceed 127598 us however we do not guarantee the systems behavior. We have validated the timings shown in the table.

    Best,

    Maximus

  • 0 in reply to Maximus Rusi
    Intellectual 350 points

    Dear Maximus 

    Thank you for youre answers. 

    If this is the case please set your "pattern set entry index" = 0. We have seen this issue and are actively working on an update to resolve it. 

    [Q1] I checked "pattern set entry index"=1 Insted of 0 to use interim measures. It happen to same issue when it used index=1. 
           Is there interim measures for single pattern set and multiple pattern images such as case 1? 
    [Q2] When will the update be offered?

    Thanks  

  • 0 in reply to LP Kim
    TI__Expert 4920 points

    Hi Kim, 

    I meant to say you should make the pattern index = 1.* It seems like you already tried this, did you still see the issue? If so I would recommend, at least for now, re ordering your patterns to get the desired output. I do not have a precise date when this update will be released as we are trying to add a few other fixes to it.

    Best,

    Maximus