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Original question:

Isolation of JTAG signals in xds100v2

XDS100V2 Emulator

Manju R
Prodigy 70 points
Part Number: TMS320F28234
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

I am using XDS100V2 emulator to load the program to RAM using code composer stuido. But when working with high voltage , the connection between the emulator and the Code composer gets terminated abruptly.

When i checked the XDS100V2 emulator schematic , i came to know that it does not have any isolation.But all the evaluation boards from TI, is supported with On board emulation with isolation.

I need to add isolation to XDS100V2 signals. Can anyone suggest a cheaper option ?

  • 0
    TI__Guru**** 171309 points

    Hi,

    The absolute cheapest option for an isolated solution is to purchase a F280049C launchpad and use its XDS110 Out connector to debug your system. For that to work, you need to remove all the jumpers that connect to both the F280049C and to the device-side power supply. Carefully read the board's user's guide (available with C2000Ware) to properly get all the technical aspects. 

    Keep in mind this may not meet specific stringent isolation regulations and standards.

    No matter what you do in pursuit of a solution, never float the entire system: host PC, XDS100v2, DUT. This can be absolutely dangerous given that you could be exposed to very high voltage levels generated by the DUT. In other words, you may not survive the experiment.

    Hope this helps,

    Rafael