SCuM Programmer

Load this firmware onto an nRF52840-DK to turn it into a programmer for SCuM!

The Single Chip micro-Mote (SCuM) is a 2x3mm2 single-chip standard-compatible Smart Dust chip, see https://www.crystalfree.org/

Use

program the nRF52840-DK

Refer to "Getting Started SCµM.pdf" section 1.1 for details on programming the nRF52840-DK using the SEGGER embedded studio.

interact with SCuM's serial port

• Connect SCuM's UART to the following pins on the nRF52840-DK

DK	SCuM
P0.02	UART TX (SCuM transmits)
P0.26	UART RX (SCuM receives)
GND	GND

load code onto SCuM

-scum_nrf_programmer.py is used to program SCuM using a pre-compiled binary.
-The nRF52840-DK's COM port must be added to the script.
-The desired binary is added to the script.(pay attention,\ -> /)

-Execute the script from CL. (> python3 .\scum_nrf_programmer.py)
-After a successful write the script will transition to serial receive mode printing messages transmitted from SCuM to the terminal.

Notes:

• The calibration codes and other information transmitted during calibration/initialization are lost.
  -The nRF52840-DK is limited to a a set of pre-defined baud rates. This can cause problems depending on the clock source used. HF clock works/LF clock will not.
  -This modification has only been used and tested for SCuM message transmissions. No attempt has been made to test SCuM message receive capability.
  

calibrate SCuM

Coming soon!

Build

• install SEGGER Embedded Studio for ARM (Nordic Edition)
• open scum-programmer/scum-programmer.emProject