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DLPDLCR2000EVM: Quick-Start Tutorial Dead Link and Feed-Back

Rei Vilo
Guru 23935 points
Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: TPS65217, TIDA-01473,

The link http://www.ti.com/lit/ug/dlpu049/dlpu049.pdf mentioned at DLPDLCR2000EVM: Quick-Start Tutorial is dead.

  • 0 in reply to Rei Vilo
    Guru 23935 points

    Also, I'd suggest to use the parameter -fs for full screen.

    mplayer -vo x11 -fs TivaC.mov
  • 0 in reply to Rei Vilo
    Guru 23935 points

    Although J3 is mentioned on figure 10 on page 7, there is no clear indication about the polarity.

    Which VDD pins from the BeagleBone Black do you recommend to use?

    • Pin 5 = VDD 5V, or
    • Pin 7 = SYS 5V

    The main difference is the TPS65217 in-between.

    Thank you!

  • 0
    Prodigy 170 points
    Hello Philippe Dollo,

    I want to use DLPLCR2000EVM as Digital signage. can i do with this product?

    if yes then how can i do?

    Regards,
    Chirag
  • 0 in reply to Rei Vilo
    Prodigy 80 points

    Using SYS5V and usb got me a bit of smoke coming out of the beagle, it's still working fine btw.

    I recommend VDD5V with external power supply.

  • 0 in reply to Valerian Sarbu
    Guru 23935 points

    Really strange to have no official answer from TI or from , especially when the TPS65217 Power Management IC (PMIC) w/ 3 DC/DCs, 4 LDOs, Linear Battery Charger & White LED Driver is TI silicon!

  • 0 in reply to Rei Vilo
    Prodigy 80 points

    My worse problem is that even with mplayer installed and all the steps taken from the guide, playing the video the usual way gets 1FPS at most.

    I have to use x11 as Vo and that drops frames too but at least is watchable . Their* video shows it playing just fine with the same command.

  • 0 in reply to Valerian Sarbu
    TI__Mastermind 28005 points

    Hello All,

    Let me try to address each of these questions individually.

    1. Issues with user's guide hyperlink
    > The links for the User's guide should be repaired at this point in time. If not, then the hyperlink probably has not refreshed yet.

    2. Header polarity
    > This information is accessible, may need to be clarified. The TIDA-01473 reference design which accompanies the DLPDLCR2000EVM (which can be found at www.ti.com/.../tida-01473) features schematics and assembly/PCB drawings that map every pinout on the system in more detail. In order to reduce confusion, we will look to integrate this supplementary material in due course.

    3. What VDD should I use?
    > The DLPDLCR2000EVM consumes approximately 320 mA of current under normal operation. On this note, I want to clarify that it is not recommended to specifically attempt to power the EVM by drawing from the BeagleBone Black alone. To be clear, it is recommended that the user take the following approaches:

    A. Power the BeagleBone Black and the EVM separately
    B. Power the BeagleBone Black by drawing current from the EVM (which is connected to a power supply). Keep in mind that we have not formally tested this approach.

    4. Is this EVM good for digital signage?
    > Yes, this EVM can be used as a base for a digital signage system. You will want to make sure that the specifications for this EVM (brightness and contrast, for example) are good enough for your application. I recommend you review our white paper on digital signage (www.ti.com/.../dlpy001.pdf) and take a look at the optical engine specifications to see if this EVM is a good fit for you. The optical engine specifications for this EVM can be found in section 3.1 of the user's guide (www.ti.com/.../dlpu049b.pdf).

    5. I'm getting heavy Frame drops on video output.
    > Out of the box, the BeagleBone Black only provides software renderers for video. You may want to make sure that your video content is a format that will play nicely with the software renderer. For example, having to upscale (or downscale) video that is not native resolution requires additional effort for the BeagleBone Black. To achieve better performance beyond what is shown in the video demo, I recommend checking out hardware acceleration solutions, such as OpenGL ES. These solutions require more involved setup on your Debian system.


    Thanks for the feedback thus far. Let me know where I can elaborate further.

    Best Regards,

    Philippe Dollo

  • 0 in reply to Philippe Dollo
    Prodigy 80 points

    5. Thank you, but my problem was with the included video sample nhd _test.mp4 as without x11 it runs at ~1FPS and drops almost all frames (That is the command line seen in the video).

    With -vo x11 I still don't obtain the performance from the video, that is all I was trying to achieve (same performance as seen in the TI video with the fishbowl). 

    I have used the latest debian available (9.1 I think) and just installed MPlayer2. Vlc refuses to install but beagleboard issues are not the scope of this forum I guess. 

    Have you done something different in the demo video that made it run well?

    6. (Separate question) Except for the I2c commands (0x1b,0x0b/c...etc) for display on and resolution nHD is there anything else necessary to configure to run off a FPGA per say? (Does the EVM configure itself from the flash?)

    Thank you in advance!

    Valerian.

  • 0 in reply to Valerian Sarbu
    TI__Mastermind 28005 points

    Valerian,


    I am sorry that you are having performance issues on your system. I shall try to provide a clear description of our setup here in order to help you debug your problem. You should be able to reproduce our demo if you have the following (with the DOLPDLCR2000EVM, of course):

    > BeagleBone Black Rev C

    > Debian image obtained from this thread: https://e2e.ti.com/support/dlp__mems_micro-electro-mechanical_systems/video_and_data_display/f/947/t/615806
     (we flashed the image directly to the BeagleBone Black's onboard memory in our case)

    >mplayer2

    Outside of these things, no additional software or drivers were installed to the board. To launch the video, the following commands can be invoked:

    $ export DISPLAY=:0
    $ mplayer nhd_test.mp4
    Does your system differ from this in any particular manner? Let me know.
    As for your other question, the EVM does indeed self-configure via flash. However, keep in mind that if your input pixel format differs in an FPGA setup, you will need to reconfigure that too. This topic is discussed in this thread as well: https://e2e.ti.com/support/dlp__mems_micro-electro-mechanical_systems/video_and_data_display/f/947/t/617366#pi239031350=2
  • 0 in reply to Philippe Dollo
    Prodigy 80 points

    Hello,

    I have BBB01-SC-505 (BB black C)

    The image I used is on the SD card and the new debian 9.1.

    That should sum up the difference. I will try the MMC version which I know runs because of the faster data rate.

    I will come back with details.

    Thank you,

    Valerian.

  • 0 in reply to Valerian Sarbu
    TI__Mastermind 28005 points

    Thanks for the update, Valerian.

    Let me know how your test performs.

    Best Regards,

    Philippe Dollo

  • 0 in reply to Philippe Dollo
    Prodigy 80 points

    Hello,

    Thank you for your help, the issue is solved.

    Using the provided image and booting from the MMC solved the performance issue.

    Probably increasing the Cache would have worked if it was a flash speed issue.

    Have a nice day,

    Valerian.