The programming and debugging interface of the nRF51822 is accessed through a 10-pin connector (P1) on the product example.
To be able to program and debug, the product example needs to be connected to a SEGGER J-Link device. In this user guide we will use the nRF51 DK as reference. Make sure that pin 1 on the Debug Out connector on the nRF51 DK is connected to pin 1 on the P1 connector on the PCA20018 board. Pin 1 position shows the position of pin 1 on the Debug out connector.
Figure 1. Pin 1 position
To connect the product example to the nRF51 DK, use a 10 pin flat cable. Connect the cable to the product example so there will be a 1-1 mapping of the pins. nRF51 DK connected to the product example shows what the connection should look like.
Figure 2. nRF51 DK connected to the product example
