Programming and debugging using frdm-kl43z board

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Programming and debugging using frdm-kl43z board

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Contributor I

I am unable to program the MCU without using the openSDA usb port. Our target project will not have a USB port.  I am using an IAR J-LINK ARM debugger connected to J11. I have removed r76 on the FRDM-KL43Z board and have cut the etch between pins 1 and 2 of J8.  Are additional pull up/down resistors needed to use the SWD lines connected to J11?

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NXP Employee
NXP Employee

Hi Bruce,

to debug the KL43Z using SWD connected to J11, the *only* hardware modification you have to do is to pupulate the J11 header.

No other hardware modification is needed.

See as well JTAG/SWD Debugging with the FRDM-KL25Z Board | MCU on Eclipse , same applies to FRDM-KL43Z.

I hope this helps,

Erich

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NXP Employee
NXP Employee

I have posted a few pictures of the board, just in case:

SWD Debugging the FRDM-KL43Z | MCU on Eclipse

Erich

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Contributor I

We put the resistor back and replaced the jumper. It works great, Thanks!

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