[SOLVED] [Ozone] Forced halt in SVC vector

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  • [SOLVED] [Ozone] Forced halt in SVC vector

    Hello,

    I am currently using:
    - Ozone 2.56c on Linux with the JLink DLLs 6.30d;
    - TMS570LC4357 on the XL2-570LC43(A) development board;
    - JTAG @1 MHz with semihosting Off and RTT Off;
    - No custom JLink scripts;

    I have an issue where from time to time I am having problems whenever the ARM assembly "SVC #" instruction is called. Whenever I reset and continue, Ozone will break at 0x08 (ARM SVC vector) even if I didn't put a breakpoint there.

    I've read that Semihosting uses the SVC location in order to work. I've tried to enable/disabling semihosting and reconfigure semihosting to use another memory location with "Project.SetSemihosting" and "Project.ConfigSemihosting" without any change.

    I've also tried:
    - Using JLink DLLs 6.30e
    - Changing JTAG speed
    - Adding/removing breakpoints
    - Disconnect, Reconnect to target
    - Using Windows

    If I continuosly reset and continue I eventually manage to continue,sometimes, without breaking at the SVC, but it's rather rare.

    I've produced a simple assembly example where I just use the SVC assembly instruction and NOPs in TI Code Composer Studio. I've attached Code Composer Studio project files, Ozone project files and the binary to this thread.

    As a note, the problem doesn't subsist if I use the embedded TI XDS110 debugger present on board.

    Could you please point me in the right direction on why this happens and how I can fix it?

    Thanks in advance!

    Alessandro
    Images
    • invisible_svc_break.png

      144.8 kB, 1,328×615, viewed 99 times
    Files
    • svc_example.zip

      (22.84 kB, downloaded 89 times, last: )
  • Hello Alessandro,

    Thank you for providing the example project.
    The issue was reproducible and we are currently working on a fix for this.

    Best regards,
    Nino
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  • Hello Alessandro,

    Great to hear that you are up and running again.
    We will consider this thread as solved now.

    Best regards,
    Nino
    Please read the forum rules before posting: Forum Rules

    Keep in mind, this is not a support forum. Its main purpose is user to user interaction.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support contact us per e-mail.
    The following contact form can be used for this: Contact Us