How can I use Logic Analyzer for nRF52 and ulink2?

[wingcloud]

I'd like to use Logic Analyzer in uVision 5.2 and ulink2 for analyzing variables in nrf52832. In my understanding, I need to use SWO and configure Trace setting properly for that.

I found Rick's guide and a "Cortex-M Debugging" setting guide of ULINK2 User's Guide.

1)Connected P0.18 of nRF52 with the 6th pin in Cortex Debug Connector of ulink2.

2)Configured Debug Driver and Trace as the document "Cortex-M Debugging" says.

3)Define "ENABLE_SWO"in Preprocessor Symbols.

However, I cannot see any signals in Logic Analyzer window and receive a status error message "Trace: No Synchronization" in the debug session.

This document says No Synchronization problem "might be caused by an incorrect configuration of the Core Clock in the trace setup.", but I believe my setting is correct(64MHz).

I really need your help. Thank you.

[bjorn-spockeli]

Are you trying to use this with a SoftDevice? If so, does it work if you try without?

[wingcloud]

Thank you for your comment. I'm trying to use Logic Analyzer with a SoftDevice S132 (and SDK 11.0). It didn't work even without a SoftDevice. I received the same message "Trace: No Synchronization".

[bjorn-spockeli]

@wingcloud: The last document you're referring to seems to be applicable for the ULINK Pro only and as far as I know we've only set this up using a ULINK Pro. However, this page states No Synchronization: This indicates that the Trace hardware is either not connected or improperly configured. I agree that 64Mhz is the correct setting, so then it must be something else.

[bjorn-spockeli]

Could you try the following configuration in Keil:

Core Clock: 32MHz
Trace Enable checked
Unlimited Trace checked
ETM Trace Enable checked
Trace Port using Sync Trace Port with 4-bit Data.

[wingcloud]

Thank you again! But these don't exist in my "ULINK2/ME Cortex Debugger" setting...:

Unlimited Trace checked
ETM Trace Enable checked
Trace Port using Sync Trace Port with 4-bit Data.