# Connections

## J-Link

20 pin connector:

 * 1:  VTref         / 2: NC
 * 3:  Not used      / 4: GND
 * 5:  J-Link TX     / 6: GND
 * 7:  SWDIO         / 8: GND
 * 9:  SWDCLK        / 10: GND
 * 11: Not used      / 12: GND
 * 13: SWO           / 14: GND *
 * 15: RESET         / 16: GND *
 * 17: J-Link RX     / 18: GND *
 * 19: 5V supply     / 20: GND *

Note: *: Reserved connections, might not be connected internally in J-Link adapter.

Connections:

 * GND / GND
 * VTref / V33
 * 5V supply / VBUS
 * SWDCLK / TCK
 * SWDIO / TMS

To enable power from the JLink adapter run:

    > power on

## ST-Link V2 to mini board

* debugger / Board
* GND / GND
* 5V / VBUS
* SWDCLK / TCK
* SWDIO / TMS

To run OpenOCD

    cd openocd
    openocd -f openocd-stlink.cfg

# Resources

* https://primalcortex.files.wordpress.com/2017/06/nrf52832-module-test-board-v1-0.pdf
* https://primalcortex.wordpress.com/2017/11/06/starting-up-with-the-nordic-nrf52-ble-chip/
* https://micooke.github.io/nRF52832_TaidaCentury_GoldCore.html