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TDA4APE-Q1: C7x MMA cores Identification

Mahmoud Shaker
Prodigy 125 points
Part Number: TDA4APE-Q1

Tool/software:

Hi,

We're using this target derivative: J742S2-TDA4APE

The SoC supports 3 DSPs, 2 of which have MMA units.

My question is, ho do we identify those on the multi-core image level (core IDs), SDK and also the OVX graph?

Just to make sure that we're assigning our ALGO to the correct DSP core and loading the right one during the SBL startup sequence.

If you please could refer me to the proper documentation?

Thanks. 

  • 0
    TI__Intellectual 2820 points

    Hi,
    If you are using OVX, after logging in,  running ./vision_apps_init.sh in the /opt/vision_apps folder will display all the remote core logs.

    After running ./vision_apps_init.sh in the /opt/vision_apps folder, you will see logs from remote cores, such as [C7x_1] Logs for  C7x_1 and [C7x_2] Logs for C7x_2. When you run an application, you can view logs from specific remote cores and identify them based on the [C7x_x] print format.

    Regards,
    Sivadeep.

  • 0 in reply to Sivadeep P R
    Prodigy 125 points

    Hello Sivadeep,

    Thanks for your answer but my question was even more primitive.

    I mean in the SoC TRM or datasheet I couldn't find any info as to which DSP of the 3 has MMA and which doesn't (I know there are 2 with MMA support).

    Also in build environment, what is the relevant core IDs for those with MMA?

    Thanks.

  • +1 in reply to Mahmoud Shaker
    TI__Intellectual 2820 points

    Hi, 

    The cores are numbered in such a way that the cores containing MMA will be numbered first. So in your case C7x Core 1 and 2 will contain MMA.

    Regards,
    Sivadeep