X-KW-MCXW-EVK-MB + KW47B42ZB RESET not working

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X-KW-MCXW-EVK-MB + KW47B42ZB RESET not working

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324 次查看
gabr1eL47
Contributor I

Hello,

I'm working on the new X-KW-MCXW-EVK-MB motherboard + KW47 MCU. 

Debug environment: iSYSTEM iC5000 + WinIDEA

Downloading and debugging of application works fine, but somehow after RESET the Cortex-M33 core is not accessible anymore ([Cortex-M33] NOT ACCESSIBLE) =>

WinIDEA message:
...
EMULATION Releasing reset
EMULATION Unexpected boot core state after debug entry

It doesn't make a difference, if I press the RESET button on the board itself, trigger a RESET in WinIDEA or do a reset via software (by writing the AIRCR register).

What could be the reason? Is the core stuck in bootloader?

My main problem is that I don't get very much information. Debugging is not possible, because after the reset core is instantly not accessible anymore. On the board, only the RESET is lighting up for a brief time and nothing else, besides the power led, is on.

I didn't change much on the board itself. Only set jumper JP22 for connecting an external debugger.

Is there anything that I can do to identifiy or narrow the problem?

Best regards,
Stefan

 

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Ricardo_Zamora
NXP TechSupport
NXP TechSupport

Hello Stefan,

 

I sent you a private message!

 

Regards,

Ricardo

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Ricardo_Zamora
NXP TechSupport
NXP TechSupport

Hello Stefan,

 

I sent you a private message!

 

Regards,

Ricardo

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