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DM816x EVM access to M3 Video

Jayakrishnan
Expert 2790 points

Hi

I have purchased Dm816x EVM (Rev J) from Spectrum Digital Recently. I want to run a sample Encoder application on M3 Video. I see two JTAG connections in the EVM. One with 20 pin and another with 14 pin (marked as MSP430).

Which one should I use. I have a 20 pin xds100v2 and 14 pin xds510USB Emulators. Which is most suitable?

Best Regards

JK

  • 0
    TI__Guru 59700 points

    You should connect to the 20 pin JTAG header. (not the MSP 430 one)

    Select TI816x CCS target configuration for your emulator.

    On launching the target you should see M3_RTOS_0 which is the video M3.

    You need to take Ducati out of reset to be able to connect to Video M3 target. The EVM should have the required gel files to take Ducati out of reset.

  • 0
    Genius 3700 points

    Hi  ,

       Why are you trying to evaluate that using JTAG? You can build the EZSDK and run one of the examples called capture_encode_a8host_debug.xv5T.

    http://software-dl.ti.com/dsps/dsps_public_sw/ezsdk/latest/index_FDS.html

    Also you can use the Ridgerun Eval SDK which is already integrated with the EZSDK. 

    https://developer.ridgerun.com/wiki/index.php/Getting_Started_Guide_for_DM8168_EVM
    http://ridgerun.com/www/index.php/download-center.html

    You will need to connect a 1080p or 720p camera on the component inputs of the board.

    -David

  • 0 in reply to David Soto - RidgeRun
    Expert 2790 points

    Hi Badri,

    Yes.Connected to 20 pin header. I am able to download code into M3 Video and run the code.

    Used M3_RTOS_0 and the A8 gel file is downloaded from spectrum digital.

    But I am not able to find any documents which says M3_RTOS_0 is Video M3. Can you point to some links?

    Hi David,

    Currently , I just wanted to run a sample code on M3 Video. Later I will use other cores for building  system.

    Thanks

    JK

  • 0 in reply to Jayakrishnan
    Expert 2790 points

    Hi Badri

    What is the use of 14 pin JTAG (MSP430) connector on the DM816x EVM?Are the M3 cores (for video and HDVICP controlling) actually  each MSP430 cores?

    Regards

    JK

  • 0 in reply to Jayakrishnan
    TI__Guru 59700 points

    There is a MSP430 on the EVM that is used for power measurement .The JTAG is for connecting to the MSP430.The MSP430 is unrelated to 816x SoC. The M3 cores on 816x are cortex M3 and not MSP430.