topic Re: Kinetis K82 Debug Port - Enabling SWD in Kinetis Microcontrollers

Kinetis K82 Debug Port - Enabling SWD

greycon — Tue, 10 May 2022 22:24:22 GMT

I see from the K82 Ref Manual that the Debug Port comes up as JTAG after reset. But I am working with a FRDM-K82F eval board, for early prototyping, and it is set to SWD. But I can't find where in any of the code the K82 Debug Port is changed from JTAG to SWD.

Can you tell me how this is done? As I will ultimately need to do this on our future board.

Re: Kinetis K82 Debug Port - Enabling SWD

Robin_Shen — Wed, 11 May 2022 02:38:29 GMT

Hi greycon,

Please refer "11.4.1 JTAG-to-SWD change sequence" of Kinetis K82: 150MHz Cortex_®-M4F up to 256KB Flash (144pin)

OpenSDA(debugger) has done this.

Best Regards,
Robin
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Re: Kinetis K82 Debug Port - Enabling SWD

greycon — Wed, 11 May 2022 14:12:06 GMT

Ah, openSDA - of course! Many thanks for your reply Robin.

Cheers,

Con