JTAG pins on KL34 family?

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JTAG pins on KL34 family?

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paulkafig
Contributor II

OK, this is going to seem like a dumb question, but where are the JTAG pins on this part? For example, MKL34Z64VLL4.  I looked through the data sheet and don't see anything about JTAG. I know I have to be missing it. Data sheet attached.

Thanks,

Paul

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559 次查看
mjbcswitzerland
Specialist V

Paul

The KL parts have SWD (single wire debug) and not JTAG (they also do not have EzPort).

JTAG is available (as well as SWD) in the Cortex M4 parts (like K60). Some of the larger K parts also have trace pins too.

Regards

Mark

559 次查看
paulkafig
Contributor II

Thank you, Mark. That makes sense now; thought I was losing my mind (although the two are not mutually exclusive)...

Is this the cable used for SWD? Someone recommended it and I want to make sure I'm getting the right thing.

TC2030-CTX 6-Pin Cable for ARM Cortex - Tag Connect 

Best regards,
Paul

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mjbcswitzerland
Specialist V

Paul

I don't know which cable is most suited for you - it probably depends on what is available on your KL34 HW.
The FRDM boards tend to have a 0.05" pitch 10 pin connector which can be directly connected to by various debuggers which looks something like this:

pastedImage_1.png

Whether something special is needed between this and the debugger will depend on whether they already match or not.

Regards

Mark

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