Updates as I run through

[jonathanpallant]

I'm working through the two embedded courses, fixing things as I find them.

• Switched to probe-rs VS Code extension
• Changed how we handle faults so probe-rs actually quits
• Changes to the text

[jonathanpallant]

Going to run these now but I need to figure out the order in which to run.

The speed run is:

1. Flash the dongle with nrfdfu /path/to/loopback-fw. You can get the firmware from a recent Github action Artifact zip file.
2. Run cargo xtask serial-term and check you can see the output.
3. Run cargo xtask change-channel 15 and see if serial term tells you it changed channel.
4. put it back to the default channel
5. Run cd nrf52-code/radio-app && cargo run --bin radio-recv and see if it says "hello"
6. Flash the dongle with nrfdfu /path/to/puzzle-fw
7. restart the serial-term
8. try channel-change on the puzzle firmware, but put it back to the default channel
9. Run cd nrf52-code/radio-app && cargo run --bin radio-solution and see if it gives you the solution

[amanjeev]

Flash the dongle with nrfdfu /path/to/puzzle-fw

the puzzle-fw binary does not exist in the GHA artifacts. so I built one.

[amanjeev]

Final command

at 12:50:34  ❤  cargo run --bin radio-puzzle-solution-2
    Finished dev [optimized + debuginfo] target(s) in 0.03s
     Running `probe-rs run --chip nRF52840_xxAA target/thumbv7em-none-eabihf/debug/radio-puzzle-solution-2`
      Erasing ✔ [00:00:00] [#####################################################################################] 20.00 KiB/20.00 KiB @ 33.47 KiB/s (eta 0s )
  Programming ✔ [00:00:00] [#####################################################################################] 20.00 KiB/20.00 KiB @ 31.19 KiB/s (eta 0s )    Finished in 1.266s
ciphertext: At4H)4H)uR)#Fu6Cx#)6#HHui#
plaintext:  This is an example message
Dongle response: correct
`dk::exit()` called; exiting ...
…oj/ferrous-systems/training-material/rust-exercises/nrf52-code/radio-app  on  update-run-through [?] is 📦 v0.0.0 via 🦀 v1.75.0 on ☁️  (us-east-1) took 2s

at 12:50:46  ❤  cargo run --bin radio-puzzle-solution
    Finished dev [optimized + debuginfo] target(s) in 0.03s
     Running `probe-rs run --chip nRF52840_xxAA target/thumbv7em-none-eabihf/debug/radio-puzzle-solution`
      Erasing ✔ [00:00:00] [#####################################################################################] 20.00 KiB/20.00 KiB @ 33.59 KiB/s (eta 0s )
  Programming ✔ [00:00:00] [#####################################################################################] 20.00 KiB/20.00 KiB @ 31.18 KiB/s (eta 0s )    Finished in 1.263s
ciphertext: At4H)4H)uR)#Fu6Cx#)6#HHui#
plaintext:  This is an example message
Dongle response: correct
`dk::exit()` called; exiting ...

and

serial-term shows

RX CRC 4615, LQI 62, LEN 1
TX Map(125) => 48

RX CRC 9f59, LQI 63, LEN 1
TX Map(126) => 56

RX CRC 0ed1, LQI 62, LEN 1
TX Map(127) => 0

RX CRC 0000, LQI 62, LEN 0
TX Secret

RX CRC fbd0, LQI 62, LEN 26
TX Correct
..........
RX CRC b181, LQI 36, LEN 45
TX Incorrect

RX CRC d26b, LQI 23, LEN 45
TX Incorrect

[jonathanpallant]

Flash the dongle with nrfdfu /path/to/puzzle-fw

the puzzle-fw binary does not exist in the GHA artifacts. so I built one.

Just to confirm, the puzzle-fw is present in the v1.9.0 release:

➜  rust-exercises-v1.9.0 $ cd nrf52-code/boards/dongle-fw
➜  dongle-fw $ ls -l
total 3816
-rw-r--r--@  1 jonathan  staff     879  6 Feb 21:25 README.md
-rwxr-xr-x@  1 jonathan  staff  961812  6 Feb 21:25 loopback-fw
drwxr-xr-x@ 19 jonathan  staff     608  6 Feb 21:25 old
-rwxr-xr-x@  1 jonathan  staff  983980  6 Feb 21:25 puzzle-fw