SWD Connector Issue

[Prashant]

Hi, We are planning to use the SWD Tag Connector with our nRF51822 platform. Please refer the snapshot for pin 3 connection on our board with Tag connect footprint. Pin 3 of tag connect footprint is connected to port pin P0.09 whereas the J-Link lite connector suggests this to be grounded. We are not sure of why should we do this as we are not planning to use the UART feature. Also do let us know whether we can use the following tag-connect cable with the JLink lite? www.tag-connect.com/.../TC2030-IDC.pdf

[Asbjørn]

Pin 3 and pin 6 on the TC2030-CTX-NL header can be used for additional testing like for example UART/TWI, but they are not needed for programming the chip. So you only need VDD, GND, SWDIO and SWDCLK to program the chip.

The lead seems to be a 6 pin lead and that won't fit directly on the j-link lite, but you can always modify a connector as an adapter between.