Hi Peter, I've used OpenOCD on a Pi with just jumper wires to program an nRF51, for reference:
https://chisight.wordpress.com/2016/03/22/openocd-for-programming-nrf51822-via-nothing-but-wires-and-a-raspberry-pi/ https://learn.adafruit.com/programming-microcontrollers-using-openocd-on-raspberry-pi/wiring-and-test Just as a FYI: I was doing the above and also using avrdude + jumper wires for AVR's at the same time and although I don't recall having many/any issues using OpenOCD I was having to manually 'free' the Pi's GPIO pins occasionally using something like: echo 4 22 23 18 | xargs -n 1 gpio unexport If you run into troubles then maybe try that (check the pins match your OpenOCD config) Regards Wayne On 25 May 2017 at 19:39, Peter Jones <mlists+myn...@devalot.com> wrote: > Is it possible to use newt to flash a nRF52 without having to use > J-Link? > > The getting started guide seems to imply that OpenOCD version 0.10.0 is > an option but I can't seem to figure out how to make `newt load' use > it. I tried setting `OPENOCD_DEBUG=1' without luck: > > $ newt target set nrf52_blinky syscfg=OPENOCD_DEBUG=1 > $ newt load --verbose nrf52_boot > > ...still tries to use J-Link. > > I want to avoid using J-Link because: > > 1) Pragmatic reason: I'm having a hard time getting J-Link to work on > my OS (NixOS) > > 2) Philosophical reason: I'm building a completely open product and > would like to have the entire tool chain open as well. I'm a firm > supporter of Open Source and relying on proprietary software like > J-Link makes me uncomfortable. > > Thanks. > > -- > Peter Jones, Founder, Devalot.com > Defending the honor of good code >
