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Target Connection Error To Cortex A8

Ramy Elgammal
Prodigy 10 points

OS: Windows 7 64-bit Service pack1

Code Composer Studio Version: 5.4.0.00091

Target Cortex A8 core in TI814x Visionmid

Debugger: Spectrum Digital XDS510USB Emulator

I got the following Error message while trying to connect

IcePick_D_0: Error connecting to the target: Error 0x80000244/-2131 Fatal Error during: Register, Initialization, OCS,  Cannot access register at 0x00000057  

I made multiple Reset to both the target and the debugger and no way.
Please help

thanks

  • TI__Guru**** 168377 points
    Hi,

    The error message is very generic and may indicate an issue with the board, device or with the connection itself - especially given that you already tried numerous forms of Reset and power cycle.

    Before blaming the hardware, check the software first. The correct connection is mentioned in the thread below for a sister device (DM8168)
    e2e.ti.com/.../1299392

    Another issue that may be hindering your ability to connect is existing code running on the target - some versions of Linux turn off the clock to the debug subsystem. Additional details can be found at section 4.2.1 of the page below:
    processors.wiki.ti.com/.../Linux_Debug_in_CCSv5

    A quick method to test the hypothesis above is to power cycle the board but either halt the board booting at the u-boot prompt or changing the bootmode of the device (or simply removing the SD Card if the kernel is located there).

    Hope this helps,
    Rafael