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CODECOMPOSER: Unable to access DAP (Error -1170)

Marco Keur
Prodigy 30 points
Part Number: CODECOMPOSER

Hi

I'm trying to debug TI Vision SDK 8 running on a J721E EVM + Fusion 1. A bit of information on my setup;

Ubuntu 18.04

Code Composer Studio 9.3 (also tried 11)

TI RTOS SDK 8

I have followed the steps in "CCS Setup for J721E" of the Processor SDK RTOS J721E manual. All worked well up to the point i try to connect to a specfic core. 

Composer Studio gives me the error "Error connecting to the target: (Error -1170 0x0) Unable to access the DAP.

I tried to restart the target, lower the TCLK, check configuration once more, but still the same situation. Any suggestions?

  • 0
    TI__Guru**** 455495 points

    Hi Marco,

    When you create target configuration, can you please press button "Test Connection" to check if emulator is able to communicate with the board? If this test fails, this issue is not related to vision apps.

    Also which core are you trying to connect CCS? Is this core included in the vision apps build? Because if it is not included, it might not be powered on and so CCS cannot connect to this core. Can you try connecting to mcu2_0 or mcu2_1?

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Prodigy 30 points

    Hi Brijesh,

    The "Test Connection" sequence is succesfull. I have tested multiple R5 cores (also mcu2_0 and 2_1), these cores run binaries loaded by uboot. All these cores return the same -1170 error.

    Thanks,
    Marco

  • 0 in reply to Marco Keur
    TI__Guru**** 455495 points

    Hi Marco,

    When are you trying to connect to these R5Fs? These R5Fs will be enabled after their firmwares are available in the SD boot mode. 

    Can you please try connecting R5F0 from MCU domain? Because this R5F is by default enabled.. 

    Regards,

    Brijesh