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CCS/AWR1642: Using XDS560v2 with AWR1642 custom board

Kevin.Y
Intellectual 455 points
Part Number: AWR1642

Tool/software: Code Composer Studio

Hi,

I have a question about the debugger XDS560v2 with AWR1642 custom board.
According to the information on this page:

processors.wiki.ti.com/.../XDS_Target_Connection_Guide

it seems to add 22 ohm between TCK on emulater headere and TCK on target device, also between TCK and RTCK on emulater header.
Are these both registers really needed for AWR1642 and XDS560v2?

In this connection, it is needed to change the connection properties in Target Configuration on CCS.
Can you recommend which options should be selected, especially JTAG TCLK?

Best Regards,
-Kevin

  • 0
    TI__Guru 58035 points
    Hello Kevin,
    The 22 ohms resisters are not mandatory. The series resistance are a general good design practice used in any digital interface connections to improve source impedance and hence reduce ringing on the signal.

    The AWR device doe not have a separate RTCLK signal. So to provide this signal to the emulator signal itself should be connected back to the RTCLK pin of the emulator. This can be done either using a 22ohms (recommended) or connected directly.

    Regards,
    Vivek
  • 0 in reply to Vivek Dham
    Intellectual 455 points

    Hi Vivek,

    Thanks!
    I will use 22 ohm to connect back to the RTCLK.

    Best Regards,
    -Kevin