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store images as internal pattern on DLP Light Crafter

Andreas Fritz
Prodigy 100 points
Other Parts Discussed in Thread: DLPC300

Hey all,

my goal is to upload a couple of images / patterns to the DLP Light crafter and store them like an internal pattern and call the image like the internal patterns.

Is there any opportunity to add patterns to the internal patterns or is there any other solution present for this?

I also tried the sequence pattern but there is no possibility to use all three LEDs  and also the exposure time is a problem there.

Is a solution created and saved in the GUI stored at the DLP Light Crafter?
In this case, is it possible to load such a solution by a command and the Light Crafter shows the image / pattern?

 

I am using Matlab to communicate with the DLP, at this moment I am able to set the display mode as well as set the internal patterns.
If it’s possible I want to avoid loading the image over Matlab -> a lot of HEX code.

 

Kind regards,

Andi

  • 0
    TI__Prodigy 410 points

    Hi Andi,

    Yes, the solutions are stored in LightCrafter's flash memory.

    A saved solution can be retrieved using the command 0x0601.

    After loading the solution, you will have to play it using the command 0x0402

    Regards,

    Suresh

  • 0 in reply to Sureshkumar Manimuthu
    Prodigy 100 points

    Thanks Suresh for you answer.

    But there will be no opportunity to extend the internal patterns?

    In this case I will use this workaround.

    Thanks, Andi

  • 0 in reply to Andreas Fritz
    TI__Expert 6995 points

    Andreas,

    The internal patterns are limited to the size of the buffer in mDDR. This buffer is 96 bit planes, so at 1-bit depth is limited to 96 monochrome patterns or at 8-bit depth 12 grey scale patterns. The solutions store a set of patterns on NAND flash and are reloaded into the internal buffer on command.

    The other option is to stream patterns from DM365 into the DLPC300. Our next release of software will support this feature. This version should be available in the next month or so. 

  • 0 in reply to PedroGelabert
    Prodigy 10 points

    Dear Pedro,

    What will be advantages of streaming patterns from DM365? Can you give us some information about it? Also will the next release support 120Hz @ 24bit stream through DVI/HDMI? Thanks,

    Fahri

  • 0 in reply to Light Crafter
    TI__Expert 6995 points

    Fahri,

    The advantage of streaming patterns from DM365 lies in that you can use NAND or micro-SD card to store the patterns: giving a large number of pattern storage. Then, the DM365 can read them from NAND or micro-SD card and stream them to the DLPC300. This is essentially the mode described in Table 1, page 5 of the DLPC300 data sheet. However, delays of fetching data from NAND or micro-SD, delays with DMA transfers through DM365 memory and VPBE, etc. might not achieve the top frame rates described in Table 1. This is a feature we are adding in our next release of the software. 

    As you can see on Table 1, the maximum frame rate that the DLPC300 supports is 60 Hz fro 24-bit RGB stream. To support 120Hz frame rate, a 12-bit RGB (4-bits per color) is supported.