Problems debugging FRDM-K66F with Seeger J-Link Plus

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Problems debugging FRDM-K66F with Seeger J-Link Plus

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ChristofAbt
Contributor II

Good morning,

I want to use the Seeger J-Link plus to debug the MK66FN2M8VMD18 on my FRDM-K66F evaluation board via the SWD debug interface. This interface consists of two signals SWDIO and SWCLK. Unfortunately your wording used in the schematic SPF-28682_REV B.pdf does not correspond to the standard. There are the signals SWD_SDA_TGTMCU, TRACE_SWO, JTAG_TDO/TRACE_SWO/EZP_DO/FTM0_CH7. Which of these signals correspond to the standard SWD signals. I attached the error report additionally. An experienced user could probably detect the fault. 

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Habib_MS
NXP Employee
NXP Employee

Hello @ChristofAbt,
PTA0 and PTA3 corresponds to SWD standard signals:

Habib_MS_4-1743199757570.png

And are used in the SDW connector:

Habib_MS_5-1743199890331.png

These are designed to support JTAG and SWD, also, as mentioned in the chapter 3.2 called "Series and debug adapter (OpenSDAv2.1)" in the Freedom FRDM-K66F Development Platform User’s Guide. These signals are also brought out to a standard 10-pin (0.05”) Cortex Debug connector (J9). I highly recommend see this chapter in order to obtain more information.
BR
Habib

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ChristofAbt
Contributor II

Thanks for the quick reply but please use the naming standards in your schematics.

Best regards Christof

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Habib_MS
NXP Employee
NXP Employee

Hello again @ChristofAbt

Thank you for the feedback, I will share the comments to the hardware design team. So, they can deliberate about the addition of this on a future.

BR
Habib.

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