Connection to Debug Probe not Possible

[RealAndy1]

I had problems to connect TAPAS Board via XDSv3 Debugger (Included on the SmartRF06 Board) to the PC to control TAPAS via the WebApp.
The wabapp always showed an emulator error. So I tried to verify the connection to the target with CCS. It said that it was not able to circulate bits between target and debugger. So I took a closer look on the path between the piccolo and the debugger.
First, I removed R9 because I fund no indication in the documentation that it is required.
That did not solve the problem. After that I removed the pull down R8 also and it finally worked.

The Datasheet SPRS698F of TMS230F28069 cleary states on page 11 that a pull down on TRST is needed.

So R8 it should be correct.

Does anybody has made the same observation?

[Flydroid]

Edit: By the magic of sleeping over the issue: Today it worked and i can successfully reprogram the board the board. I will try to add R8 back and see if it still works.

[Running Code Composer Studio 8.1 and the XDS110 debug probe, i also couldn't connect to the board.
I removed the resistors the otherway around first R8 and then R9, however the emulator error stays (was not able to circulate the bits).

I'm powering the board over 3.3V from the debug probe. Nothing connected on the DC power In.]

[SDI-SoftwareDefinedInverter]

Can you tell me, why you do power the board from the debug probe?
Does the debug probe supply sufficient current on the 3,3V line?

[RealAndy1]

The probe does supply enough current to program the µC. But you can also power the µC externally. If you do so, please set the jumper of the debugger in a position that it does not power the µC. Otherwise you may kill the debugger.