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How to bypass other devices on JTAG chain when programming an F28335 using XDS510?

Other Parts Discussed in Thread: TMS320F28335

When using CCSv5.0 and an XDS510 to program an F28335, how do I bypass a Xilinx CPLD which is on the same daisy-chain following the F28335?

The 2 devices are the only ones on the JTAG chain.

Thank you

  • You can support this scenario by adding a device in the description of the JTAG scan path within CCSv5 through the Target Configuration File.

    A Target Configuration File will be needed to describe to CCS the JTAG scan path and other key parameters including which JTAG emulator solution is used, target device, etc.  If a Target Configuration File does not exist, one can be created within CCSv5 through File->New->Target Configuration File.

    Choose a file name.  Click Finish
    Select the JTAG emulation solution in the Connection pull down.
    Select the processor configuration : TMS320F28335
    Save configuration.
    Click the Target Configuration link under the "Advanced Setup" section in the main window.
    Highlight the emulator in the "All Connections" section.
    Click Add...
    Go to the Cpus tab
    Select Bypass and Click Finish
    In the Bypass Properties, enter the number of bits associated with the JTAG IR register length of the CPLD.
    Adjust the position of the CPLD relative to the F28335 by "right-mouse click" and Move Up or Move Down.
      - this should represent the position of the CPLD and F28335 on the JTAG scan path between TDI and TDO appropriately
    Click save


     

  • Hi Brandon, If we change the procesor to AM335X and TDO pin of processor is connected to TDI of CPLD then what will be change in above procedure? Kindly help Regards, Vinayak

  • Replying to your original thread rather than clutter this one.