How to use the SCuM Programmer.

This page is being built as we are putting together the SCuM User Experience. That is, it’s not all implemented yet.

Overview

The SCuM-programmer allows you to:

  1. load firmware onto SCuM

  2. interact with SCuM’s serial port

It consists of the following elements:

Installation

By default, the nRF52840-DK operates at 3V. The SCuM board operates at 1.8V and you will destroy it if you connect it to the nRF52840-DK operating at 3V.
You need to load the scum-programmer.hex firmware onto the nRF52840-DK before connecting the SCuM board. This firmware switch the nRF52840-DK to 1.8V.

nRF52840-DK pin

McCoy pin

function

Using

   SSSSSSSSSSSSSSS         CCCCCCCCCCCCC                  MMMMMMMM               MMMMMMMM
 SS:::::::::::::::S     CCC::::::::::::C                  M:::::::M             M:::::::M
S:::::SSSSSS::::::S   CC:::::::::::::::C                  M::::::::M           M::::::::M
S:::::S     SSSSSSS  C:::::CCCCCCCC::::C                  M:::::::::M         M:::::::::M
S:::::S             C:::::C       CCCCCCuuuuuu    uuuuuu  M::::::::::M       M::::::::::M
S:::::S            C:::::C              u::::u    u::::u  M:::::::::::M     M:::::::::::M
 S::::SSSS         C:::::C              u::::u    u::::u  M:::::::M::::M   M::::M:::::::M
  SS::::::SSSSS    C:::::C              u::::u    u::::u  M::::::M M::::M M::::M M::::::M
    SSS::::::::SS  C:::::C              u::::u    u::::u  M::::::M  M::::M::::M  M::::::M
       SSSSSS::::S C:::::C              u::::u    u::::u  M::::::M   M:::::::M   M::::::M
            S:::::SC:::::C              u::::u    u::::u  M::::::M    M:::::M    M::::::M
            S:::::S C:::::C       CCCCCCu:::::uuuu:::::u  M::::::M     MMMMM     M::::::M
SSSSSSS     S:::::S  C:::::CCCCCCCC::::Cu:::::::::::::::uuM::::::M               M::::::M
S::::::SSSSSS:::::S   CC:::::::::::::::C u:::::::::::::::uM::::::M               M::::::M
S:::::::::::::::SS      CCC::::::::::::C  uu::::::::uu:::uM::::::M               M::::::M
 SSSSSSSSSSSSSSS           CCCCCCCCCCCCC    uuuuuuuu  uuuuMMMMMMMM               MMMMMMMM
 
                                                                      www.crystalfree.org
 
 Running SCuM-programmer.py version 1.2.3
 > 
> help
- "ls" lists the binary files availble to bootload
- "bootload <image.bin>" bootload an image onto SCuM
- "transfer"

Use case 1: load firmware onto SCuM

note

TODO Thomas Watteyne

Use case 2: interact with SCuM’s serial port

note

TODO Thomas Watteyne