• State Resolved
  • Locked Locked
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 28 subscribers
  • Views 248 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DLPC3436: Skipping FPGA on applicaiton with DLPC3436 and 230NP

Wladimir De la Cadena
Prodigy 220 points
Part Number: DLPC3436
Other Parts Discussed in Thread: DLP230NP, DLPDLCR230NPEVM

Hello,

I have some experience working with other DLPC + DLP combos, and I am wondering what for this particular chip-set the application diagram of the datasheet shows and FPGA to interface with the AP. If the AP already has all GPIOs, I2C, and SubLVDS interface, why to use the FPGA? And if it is due to format conversion, is there any sample code for the FPGA to follow? Or what is the best documentation to get full details to implement this solution. Thanks

Augusto

  • 0
    TI__Expert 5310 points

    Hello Augusto,

    The DLPC3436 chipset works with the DLP230NP DMD with a native resolution of 960 x 540. Inside of the optical engine there will be a actuator that is used to create subframes. The FPGA is used to drive to actuator signals and create these subframes for 1080p content. It will also be used to coordinate the subframe position of the actuator with the image content being sent to the controller. Here is the DLPC3436 controller datasheet, https://www.ti.com/document-viewer/dlpc3436/datasheet, and page 27 gives a visual aid as to how the subframes work with the input image content to FPGA -> FPGA to controller -> controller to DMD.

    Regards,

    John

  • 0 in reply to John McKnight
    Prodigy 220 points

    Hi John,

    Thanks for your answer, yes after going through the datasheet I get the processing required. It seems sufficient to have an idea what to implement. But if you know of any more detailed documentation or sample code on this it would be helpful as well. From the Devkit design the FPGA seems quite big and I would like to go for something smaller for a wereable

  • 0 in reply to Wladimir De la Cadena
    TI__Expert 5310 points

    Hello User,

    The DLPC3436 page and the DLPDLCR230NPEVM have the most resources with schematics and commands for the controller. The DLPC3436 system has to use that particular FPGA.

    What is the lowest resolution for your use case? There may be another chipset to look into.

    Regards,

    John

  • 0 in reply to John McKnight
    Prodigy 220 points

    Hi John,

    Yes I saw the design, but even using that FPGA, I will need to implement the HLS Code to make it run in my custom hardware. About resolution, I need at least 1920x1080 in the most portable format. I looked into it and it seemed to be the only projector capable of doing it.

  • 0 in reply to Wladimir De la Cadena
    TI__Expert 7070 points

    Hello,

    Thanks for the feedback and response. Please give our team some more time to look into this issue.

    Thanks,

    Alex Chan

  • +1 in reply to Wladimir De la Cadena
    TI__Expert 5310 points

    Hello,

    We have a FW and SW package for the DLC3436, here. This is our FW selector tool. You just fill out information for the Controller and DLPA you are using.

    The package for the DLPC3436 should have a FW .img file and a FPGA .bin file.

    I don't think we will be able to share any more of the FPGA code currently.

    This is our only chipset at 1080p resolution with the size constraints that you have.

    Regards,

    John