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Programming and debugging using frdm-kl43z board

Question asked by Bruce Stetson on Oct 5, 2015
Latest reply on Oct 5, 2015 by Erich Styger

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?