scum_programmer

install

Install the latest Embedded Studio for ARM, v4.52c known to work
Download the latest nRF SDK, unzip the nRF5_SDK_*.zip into C:/nrf, version 16.0.0 known to work

build & load

Clone repository
Copy scum_programmer_firmware into C:/nrf/examples/peripheral
Double click on C:\nrf\nRF5_SDK_17.0.2_d674dde\examples\peripheral\scum_programmer_firmware\pca10056\blank\ses\uart_pca10056.emProject
Ctrl + F7 to build
Plug in the nRF52840-DK into the PC via USB port
Target > Connect J-Link
Target > Erase all
Target > Download solution

run

Find the COM port of your nRF52840-DK in the Device manager
Edit scum_programmer_software/comm.py to set variable programmer_port to that COM port
Run scum_programmer_software/comm.py, no command line parameters
- Currently takes forever because of #6