I have tested my code on the USB kit and would now like to build a custom board.
Is it possible to program the DA14531 on the custom board through SWD from the USB kit? The external J-link debu solutions seem rather expensive.
Thanks for your question online and apologies for the late response. The USB Kit can be used as a programmer - please check out this tutorial : http://lpccs-docs.renesas.com/Tutorial_SDK6/debug_probe.html