topic Lost Connection when debug S32G Cortex M7. in S32G

Lost Connection when debug S32G Cortex M7.

chengpei — Mon, 22 May 2023 08:53:10 GMT

Hello, I got ccs: Bus error when debug S32G274 cortex m7.

Environment: S32G-VNP-RDB2, gcc compiler, S32DebugProbe & PLS UDE debugger.

Problem description:

Cpu fail when execute ldr.w lr, [sp], #4; with S32DebugProbe:

SP and LR before execution:

[sp]=[0x34063770] memory:

With the same elf file, load into PLS debugger, this instruction executes successfully, but it failed later when executed an branch instruction:

lost connection after execution:

The branch destination address is valid:

Re: Lost Connection when debug S32G Cortex M7.

Daniel-Aguirre — Mon, 22 May 2023 21:58:41 GMT

Hi,

What example are you using? If not, under any NXP provided example, can you reproduce this behavior?

Please, let us know.

Re: Lost Connection when debug S32G Cortex M7.

chengpei — Wed, 24 May 2023 03:57:40 GMT

Hi, Daniel,

It's not NXP provided example, but I can give you the elf file. Thank you for your help!

Re: Lost Connection when debug S32G Cortex M7.

Daniel-Aguirre — Tue, 23 May 2023 15:03:42 GMT

Hi,

Thanks for your feedback.

We recommend opening a ticket under the NXP online services for reviewing your project. Since this is a public channel, we recommend a private channel for this manner.

Please, let us know.

Re: Lost Connection when debug S32G Cortex M7.

chengpei — Wed, 24 May 2023 03:56:20 GMT

Thank you for your suggestion!