Jlink to NRF52

[Chad]

I know this might be a dumb question to you all, I am first time doing this sort of work

How to connect Jlink to NRF52? I need to flash a custom built BLE board with new firmware.

The option that is been provided to me is as below

1: Connect NRF52 To custom board through Pogo pins 2: Connect Jlink to Computer

I do not understand how Jlink talks with NRF52 and updated the Custom Board with out any connection.

Appreciate your help

[endnode]

Have you ever used SEGGER J-Link or any similar JTAG/SWD programmer? You need to locate proper PINs (for nRF5x it typically is SWDCLK, SWDIO, GND and 3V3, other lines like SWO and RESET are usually optional), attach the probe and flash binary (typically intel HEX format or simply BIN) - or binaries - to target by SEGGER or Nordic tools. There are dozens of tutorials on the internet, several pages on Nordic Infocenter, dozen of Q&A on this forum. Please choose one and come back if you have troubles with some particular step.

[Matt]

Also make sure the real target is powered up as VTG cannot be used as the power source for the real target.