Bootloader for custom nrf52832

[kelapuress]

I was using Sparkfun nRF52832 board to test my application, programming it with FTDI over Arduino IDE. Now I made my own PCB and found out that the IC doesn't have bootloader in it and I cannot program it using Arduino IDE. Fortunately I have SWDIO, SWCLK, P26 and P27 pins available for me out along with a RST and P06 button.

For HW, I have ST-Link v2 and some STM32 boards with SWD.

How do I start with this blank IC now? Any tips?

[Turbo J]

TL;DR use OpenOCD.

Generate a board config file, fire up OpenOCD and use it to flash/debug your board. OpenOCD supports both the NRF chip and ST-Link programmers.

Careful: Don't lock yourself out - I am not sure whether you can flash unlock with an ST-Link.

[Vish]

Connect the SWDIO, SWCLK, GND and VREF to Stlink/Jlink and you should be able to program the device using openocd/nrfjproj. Check this link . You device must be powered in your custom board.

https://pcbreflux.blogspot.com/2016/09/nrf52832-first-steps-with-st-link-v2.html

[Turbo J]

The nrfjprog tool only supports JLink programmer/debugger AFAIK.