...
Move the nRF board firmware to a specific level of hierachy {Location you unzipped the nRF5 SDK to}\DeviceDownload\nRF5_SDK_17.1.0_ddde560\nRF5_SDK_17.1.0_ddde560\examples\MyProjects
Open {Location you unzipped the nRF5 SDK to}\DeviceDownload\nRF5_SDK_17.1.0_ddde560\nRF5_SDK_17.1.0_ddde560\examples\MyProjects\configure_nRF_to_low_VDD\pca10056\blank\ses\EVA6_1_8v-REG0_test.emProject with Segger embedded studio
IMPORTANT Connect the nRF to the computer, but do not have scum connected to the nRF. You need flash the firmware first.
In Segger Embedded Studio, use shortcut Ctrl+T then Ctrl+l (lowercase L) to flash the nRF.
There is a little switch labeled NRF power source. Move it from the VDD position to the USB position. The nRF chip and all LEDs should turn off.
Connect a second USB cable to the other port on the nRF .
The nRF should be turned on again. LEDs should be dimmer. Confirm output voltage VDD is 1.8V.
Clone Thomas' repo and checkout branch develop_12 https://github.com/filmak/SCuM-programmer/tree/develop_12
Open {Location you cloned the repo}\SCuM-programmer\scum-programmer\scum-programmer.emProject with Segger embedded studio
In Segger Embedded Studio, use shortcut Ctrl+T then Ctrl+l (lowercase L) to flash the nRF.
LEDs will blink in circular pattern when you use Thomas’s program.
If you see an error about a core_cm4.h file not found or similar, go to Tools -> Package Manager and install the CMSIS-CORE Support Package and the Nordic Semiconductor nRF CPU Support Package (then restart Segger Embedded Studio)
To bootload (after completing wiring setups below), enter command:
python test_bootload.py. You will need to manually change the COM port and the path to the binary file.If errors importing serial, run
pip install pyserial
...