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TMS320F280039C: Inquiry regarding LP-XDS110 connection to custom TMS320F280039C board

Namhoon Kim
Prodigy 10 points

Part Number: TMS320F280039C
Other Parts Discussed in Thread: LP-XDS110,

Hello,

I have recently purchased an LP-XDS110 to program and debug the TMS320F280039C. I am currently designing a custom board and would like to confirm the correct implementation and software setup.

1. Hardware Connection: My custom board uses a 1.27mm pitch cTI 20-pin header. Since the LP-XDS110 has a 2.54mm pitch output, I understand that a pitch conversion is necessary.

  • Does the LP-XDS110 fully support the 5-pin JTAG (including nTRST) required for C2000 devices via its 20-pin header?

  • Are there any specific pinout requirements for the 1.27mm cTI 20-pin header to ensure compatibility with the LP-XDS110? (e.g., specific wiring for EMU0/EMU1 or nTRST on pin 19).

2. Software Configuration (CCS):

  • What is the recommended "Connection" setting in the Code Composer Studio (CCS) .ccxml file for the LP-XDS110?

  • Are there any known issues or specific TCLK frequency settings I should be aware of when using LP-XDS110 with the F280039C?

I would appreciate it if you could verify if this setup is officially supported and if there are any technical notes for this specific combination.

Best regards,

  Nam Hoon, Kim

  • +1
    TI__Expert 3770 points

    Hi, 

    Yes the LP-XDS110 does fully support the 5-pin JTAG through its 20-pin header.

    Within the .ccxml file for the LP-XDS110 ensure that you set the "connection" to XDS110 USB Debug probe, select the correct device, and start TCLK at the default value ~5kHz

    Additionally, please ensure that your JTAG cable is <6 inches to enable a reliable operation for this custom board.

    Kind regards,
    AJ Favela  

  • 0 in reply to AJ Favela
    Prodigy 10 points

    I appreciate your professional feedback. Thank you!