• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 30 subscribers
  • Views 182 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMDSCNCD263P: SW14 and SW15 Switch Positions For Trace Query

Kier
Mastermind 8855 points
Part Number: TMDSCNCD263P

Tool/software:

Hello,

Regarding document https://www.ti.com/lit/an/spradp0/spradp0.pdf (Enabling Trace on AM26x Devices with Lauterbach®), it says:

"put SW-14 switch to OFF, SW-15 switch to OFF and SW-16 switch to ON state."

I can see why SW-16 is necessary to be ON this maps TRC_DATA0-15 to the HSEC, but I cannot see why SW-14 and SW-15 needs to be OFF. I need them ON for our application.

For example, SW-14 maps the following pins:

As far as I can see, PR0_PRU0_GPIO0-6 and PR0_PRU0_GPIO8-10 are not relevant to TPI.

Why is SW14 and SW15 relevant to Trace please?

  • 0
    TI__Genius 10634 points

    Hi Kier,

    This document may be referring to an older revision of the AM263Px control card, and was not updated for the latest revision.

    Can you confirm you are using Revision A of the TMDSCNCD263P?

    If using Rev A, SW16 should be ON to map the TRACE signals to the HSEC. SW14 does not need a specific configuration. SW15 is irrelevant to the HSEC Mux routing.

    Please try with this configuration and let me know if you experience any additional issues. Also, please submit document feedback so the document can be updated:

    Regards,

    Brennan

  • 0 in reply to Brennan Hartigan
    Mastermind 8855 points

    Hi Brennan,

    Many thanks for the quick response.

    Brennan Hartigan said:
    This document may be referring to an older revision of the AM263Px control card, and was not updated for the latest revision.

    Ah, OK.That's a relief.

    Brennan Hartigan said:
    Can you confirm you are using Revision A of the TMDSCNCD263P?

    Not sure how I can identify Rev A but mine says PCB#: PROC159E2 and E156972 41/23 06-004 and SL#4223159004.

    Brennan Hartigan said:
    please submit document feedback

    Will do.

  • +1 in reply to Kier
    TI__Genius 10634 points
    Kier said:

    Not sure how I can identify Rev A but mine says PCB#: PROC159E2 and E156972 41/23 06-004 and SL#4223159004.

    Understood - this is E2 revision. The switch scheme is the same as Revision A, so my previous statement applies.

    Regards,

    Brennan