Update booster instructions for new firmware version

Signed-off-by: Egor Savkin <es@m-labs.hk>

src/hw/booster.md

@@ -8,9 +8,40 @@
 
 ### Flashing
 
+#### Easier way
+
+```shell
+# download binary from https://files.m-labs.hk/s/DcJwdC33tyBK7at
+nix-shell -p dfu-util
+dfu-util -a 0 -s 0x08000000:leave --download booster0.5.0.bin
+```
+
+#### Build from source on Fedora 38
+
+Creating proper Nix shell for updated Rust is quite troublesome, so the faster way is actually to use any
+classic Linux distribution:
+
+```shell
+git clone https://github.com/quartiq/booster.git # download sources
+sudo dnf install clang dfu-util
+cd booster/
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh # install Rust, we need rustup
+rustup target add thumbv7em-none-eabihf
+cargo install cargo-binutils
+rustup component add llvm-tools-preview
+cargo build --release
+cargo objcopy --release -- -O binary booster.bin
+# enter dfu mode by either serial terminal or
+# press `DFU Bootloader` button while rebooting
+dfu-util -a 0 -s 0x08000000:leave --download booster.bin
+```
+
+#### For version before September 2023 on NixOS
+
 ```shell
 git clone git@github.com:quartiq/booster.git
 cd booster
+git checkout f7d89f4d9d7760e8bc73ec13f17212512b60af15 # or earlier
 nix-shell -p rustup cargo rustc dfu-util
 rustup target add thumbv7em-none-eabihf
 cargo install cargo-binutils
@@ -32,7 +63,7 @@ dfu-util -a 0 -s 0x08000000:leave --download booster.bin
     ```
 3. `mosquitto -c mosquitto.conf -d`
 4. Run `cutecom`
-5. Connect to the Booster via `/dev/ttyACMX` port, baud 9600
+5. Connect to the Booster via `/dev/ttyACMX` port, baud 9600, switch from LF to CR on newer version
 6. Send `help` command to check if it works
 7. Enter commands (change details if necessary):
     ```shell
@@ -44,6 +75,13 @@ dfu-util -a 0 -s 0x08000000:leave --download booster.bin
     # apply changes and wait until it fully rebooted
     reset
     ```
+   Newer version:
+   ```shell
+    write broker "192.168.1.123"
+    write ip "192.168.1.75"
+    # apply changes and wait until it fully rebooted
+    reset
+    ```
 8. Check the Booster connects to your broker.
 9. Download AppImage from [MQTT Explorer](https://mqtt-explorer.com/)
 10. Run it with `appimage-run /path/to/MQTT-Explorer-XXX.AppImage`
@@ -58,7 +96,12 @@ dfu-util -a 0 -s 0x08000000:leave --download booster.bin
 4. Configure oscilloscope for 1M Ohm impedance
 5. Attach attenuator to the Urukul's RF2
 6. `cd py/`
-7. You may also need to download or install python's `gmqtt` and `miniconf`
+7. You may also need to download or install python's `gmqtt` and `miniconf`:
+   ```shell
+   python -m venv env
+   source env/bin/activate.fish
+   pip install git+https://github.com/quartiq/miniconf#subdirectory=py/miniconf-mqtt
+   ```
 8. Enable channels: `python -m booster --broker 192.168.1.123 --prefix dt/sinara/booster/xx-xx-xx-xx-xx-xx --channel N tune=0.1`
 9. Using [booster_template](../extra/booster_template.ods) fill in `y0`, `y1`, `m`, `c`, values using instructions below
 10. Update settings with the adjusted values