https://devzone.nordicsemi.com/f/nordic-q-a/23562/is-p0-18-and-p0-21-necessary-to-debug-the-nrf52832-if-swdio-and-swdclk-are-connectedHello, We are currently designing the hardware for a production run of our product using the nrf52832 chip and would still like to have debugging capabilities with breakpoints. Are the SWDIO and SWDCLK lines sufficient (along with gnd and vdd) to debugen-USTelligent Community 13Mon, 17 Jul 2017 07:34:24 GMThttps://devzone.nordicsemi.com/thread/92553?ContentTypeID=1Mon, 17 Jul 2017 07:34:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c9bad594-ed19-496c-8b5f-ac36f59c0791endnode<p>No they are not necessary if you have GND, 3V3 and SWDIO+SWDCLK connected.</p><div style="clear:both;"></div>