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SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world. And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download (registration required) various documents highlighting:

System Workbench for STM32

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Examination failed, GDB will be halted

Posted by dilbert168 on 2017-05-23 21:17

I am using Nucleo-F411RE board and running AC6 (SystemWorkbench) on Dell Laptop (Window 10).
Once every ~10 mins the Openocd will have following message, then STM32F4 will RESET.

Examination failed, GDB will be halted. Polling again in 100ms

Info : Previous state query failed, trying to reconnect

Polling target stm32f4x.cpu failed, trying to reexamine


If this is Dell (Laptop) issue, should there be a way to install the STLink - USB driver to resolve this ??
During the debugger loading, it has the Error, but it continue to load/run code, I did not pay attention.
Anyone know how to remove this error ? See this could resolve my issue.

Info : clock speed 1800 kHz
Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
Info : STLINK v2 JTAG v28 API v2 M v18 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.241334
Info : stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting ‘gdb’ connection on tcp/3333

Reads: 6897
Link
Posted by wrljet on 2017-05-24 16:52

There is a thread on the STM32 forums about an issue with Dell and resets like you describe.

I seem to remember it was related to the USB Mass Storage device in the ST-Link
and drivers on the Dell.

I’d ask over there.

Link

Posted by dilbert168 on 2017-05-28 20:50

Finally resolved after weeks of searching various forum.....this is Dell Support Assist/Agent.
After I uninstalled from Laptop, comm error not show up after an hour of running the STlink debugger.

No idea what Dell program doing in the background.

Link