Debug doesn't work at KAIL. ''Could not stop Coretex-M device!''

Takayoshi Ishii · ‎2018-02-28

Posted on February 28, 2018 at 12:21

Hello,

When I run my project as debug mode, following error come up.

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Debugger - Coretex-M Error

Could not stop Coretex-M device!

Please check the JTAG cable.

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I can debug other project by the same hard ware environment. I changed many times the debugger and cable, but the same error come up.

When I run it as LOAD and RUN, it works well. Just couldn't stop the debug mode running.

The environment is

-STM32L051C8T6

-Kail v5.24

-Cube-MX

-ST-Link V2-1 and the setting speed is 1MHz for STM32L0.

Thank you.

Bogdan Golab · ‎2018-03-01

Posted on March 01, 2018 at 08:18

Looks like a magic (something internal to the MCU) unless the FET does not interact with SWD pins...

AvaTar · ‎2018-03-01

Posted on March 01, 2018 at 08:32

Perhaps does a reconfiguration of PB3 nonetheless affect the SWD functionality.

I would try debugging with all code touching PB3 removed.

Vitaliy Chernobay · ‎2018-03-01

Posted on March 01, 2018 at 11:54

a similar problem