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TDA4VMXEVM: Linux bootloader or RTOS bootloader ?

Brahim Salh
Intellectual 1345 points

Part Number: TDA4VMXEVM

Dear experts,

I have a project to realize using J721E EVM but I don't know what software to use with this board.

1)  I see that there are two bootloaders  (Linux and RTOS), which one I should put in the SD Card ?

2)  I want to generate some signals such as RGB24, which Software I need to use to start programming ?

Thanks,

Brahim

  • 0
    TI__Guru**** 496475 points

    Hi Brahim,

    Are you planning to use Linux? then use SPL->uboot otherwise use SBL. Please note that most of our usecases use Linux.

    For RGB signals, are you planning to use EVM ? Where are you planning to connect RGB output from DSS?

    The easiest way to generate RGB signal is to PDK DSS example. 

    You could even enable HDMI output in vision apps and can generate RGB signals from DSS.

    Rgds,

    Brijesh 

  • 0 in reply to Brijesh Jadav
    TI__Intellectual 1345 points

    Hi Brijesh,

    Right now I use SPL > u-boot.

    Yes I'm planing to generate RGB using the EVM. I want to generate it through DPI Parallel output from DSS which is connected to the expansion connector as you said last time.

    Can you give more details how I can use PDK DSS example and how I can find it. I'm a little bit beginner with Embedded Linux.

    Thanks,

    Brahim

  • 0 in reply to Brahim Salh
    TI__Guru**** 496475 points

    Hi Brahim,

    If you want to run just DSS example, we dont even need to run Linux. We can just bootmode to NoBoot mode and can use CCS to load and to run DSS example. 

    You could look into PDK documentation in pdk/docs/user_guide/html/index.html, which explains how to build DSS example and run it via CCS. 

    One of the option in this example is to send output on HDMI, which is connected on daughter card. For this, DSS is configured to output RGB format. 

    Regards,

    Brijesh