Debug Port Secured Error Message

[nsyed]

Hello,

I am working on my hardware which uses TC377TP MCU and when I try to attach Lauterbach Trace32 device, I am getting error message “debug port secured error” message. However after I do “CPU -> In Target Reset” using Trace32 I can attach and debug the MCU.

Can you please clarify why I am seeing this error message and how to eliminate this error. I don’t see this behavior on the evaluation board.

[VincentWan]

Hi

What did you do to the TC377 or Lauterbach before this message occurred?
In normal case, this message only appears if you have DBGIFLCK set in UCB_DBG.
Please also check with Lauterbach support on the message.
Thanks.

[MoD · Accepted solution]

If there was programmed a valid BMHD to the device before? What are the connections on HWCFG3,4 and 5? What is the state of ESR0?

[nsyed]

Hello,

Thank you for the feedback. There was no valid BMHD on my board. I thought my Trace32 script was programming the BMHD, but apparently looks like it was not. I recached out to Trace32 guys and they pointed to the Trace32 script which I can use for programming BMHD. After I programmed BMHD, I don’t see this issue.