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TMS570LC4357: What do I need to connect a RM48/TMS570 HDK to an EXTERNAL debug probe?

Part Number: TMS570LC4357

I know the RM48/TMS570 HDK's have on-board XDS100v2 but I want to connect an external debug probe such as XDS110/XDS200/XDS560 etc. to these HDKs.

As per the user guide for the RM48 for example, the JTAG header on the HDK is a 20-pin ARM JTAG.

It looks like the regular ARM 20 pin JTAG version and not the TI's compact TI 20 pin version.

The plethora of JTAG connectors is confusing me to no end. 

Just looking at this page http://software-dl.ti.com/ccs/esd/documents/xdsdebugprobes/emu_jtag_connectors.html spins my head!

From another post at:

https://e2e.ti.com/support/tools/ccs/f/81/t/515432?TMDSEMU100v2U-ARM-JTAG-connection-to-tm4c123gh6pm

"There are two types of JTAG pinouts, one is defined by TI and the other is defined by ARM company. TI has defined 14-pin (TI-14) and 20-pin (cTI-20) versions while ARM has defined 10-pin (ARM-10) and 20-pin (ARM-20) versions. Yes, the two 20-pin versions are different."

Now the XDS110 (external USB probe) comes with:

  • TI 20-pin to TI 14-pin converter adapter
  • TI 20-pin to ARM Cortex 20-pin converter adapter
  • TI 20-pin to ARM Cortex 10-pin converter adapter

None of these can directly be used with the HDK. Hmm...

What do I really need to buy (in addition to some version of XDS debug probe) to be able to connect an external XDS<xyz> probe to one of these HDKs?

Something like this? http://www.spectrumdigital.com/cti20-pin-to-arm20-pin-jtag-adapter/

That costs ($79) almost as much as the cheapest probe ($99 for the XDS110)!

Is my only recourse to fly-wire all the JTAG connections? Will that even work?

Thanks

Subu