TMS570LS3137 RTCK and Debug Access

Casey McCrea

Other Parts Discussed in Thread: TMS570LS3137

Hello team,

Can you confirm or deny whether the ICEPICK_C will allow debug access the target if the RTCK pin is not connected for the TMS570LS3137?

Thanks,

Casey

over 9 years ago

0 Anthony F. Seely over 9 years ago

TI__Guru 68920 points

yes it will, but you may need to reduce the JTAG clock frequency although you should normally not need to on the 3137.
the rule of thumb if you do is 1/8th the CPU clock but I believe on the 3137 only the RTP & DMM really need RTCK.

0 Casey McCrea over 9 years ago in reply to Anthony F. Seely

TI__Guru** 103215 points

Thank you Anthony,

One more follow up question: Does the same hold for the XDS200 instead of ICEPick?

Best Regards,
Casey

0 Anthony F. Seely over 9 years ago in reply to Casey McCrea

TI__Guru 68920 points

Hi Casey,

IcePick-C is a scanpath router that is on the silicon, it is sort of the 1st level TAP and allows you to select various sub-chains like boundary scan, emulation, etc.

So it's not a scan controller.

XDS200 is a scan controller that is USB or Ethernet based.

You use them together - it's not an either-or situation.

-Anthony

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TMS570LS3137 RTCK and Debug Access