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Original question:

RTOS/AM5746: SMP multi-core debug

CCS/AM5746: Sync group issue

Kaka
Guru 24520 points

Part Number: AM5746

Tool/software: Code Composer Studio

Hi TI Experts.

As I reported to it on other thread, not work the Cross-Trigger in case of using the AM574x IDK.

When set the sync group, CCS showed the error as below. Would you please teach us the reason why this problem happen?

************
CortexA15_0: Trouble configuring cross triggering: Error enabling this function: There is no AET resource to support this job.
CortexA15_1: Trouble configuring cross triggering: Error enabling this function: There is no AET resource to support this job.
************

Here is the reproduced way.
1. Sync Group the Target the A15_0 and A15_1
2. Connect the target
3. Load the program(POSIX-SMP) for each core.
4. Run the program.
Note: When I used the AM572xIDK, it was worked well.

CCS: 8.1.0.00011

If you have any questions, please let me know.

Best regards.

Kaka

  • 0
    TI__Guru**** 480241 points
    Hello,
    As mentioned in the other threads, that error means that there are not any available emulation resources to support global breakpoints. Each device has a limited number of emulation resources. Things like HW breakpoints, watchpoints, profile clock, enabling sync groups, etc all use up some resources.

    As for why it works on AM572x but not AM574x, it could be that the AM572x has more emulation resources available. I cannot confirm this myself as I do not have an AM574x. But I will check with Eric on the other thread.

    Thanks
    ki