diff --git a/docs/solo/nucleo32-board.md b/docs/solo/nucleo32-board.md
index 25d103e..e48312d 100644
--- a/docs/solo/nucleo32-board.md
+++ b/docs/solo/nucleo32-board.md
@@ -1,43 +1,42 @@
# Nucleo32 board preparation
-Additional steps are required to run the firmware on the Nucleo32 board.
+
+Additional steps are required to run the firmware on the Nucleo32 board.
## USB-A cable
-Board does not provide an USB cable / socket for the target MCU communication.
+
+Board does not provide an USB cable / socket for the target MCU communication.
Own provided USB plug has to be connected in the following way:
-
| PIN / Arduino PIN | MCU leg | USB wire color | Signal |
-|---|---|---|---|
-| D10 / PA11 | 21 | white | D-|
-| D2 / PA12 | 22 | green | D+ |
-| GND (near D2) | ------- | black | GND |
-| **not connected** | ------- | red | 5V |
+| ----------------- | ------- | -------------- | ------ |
+| D10 / PA11 | 21 | white | D- |
+| D2 / PA12 | 22 | green | D+ |
+| GND (near D2) | ------- | black | GND |
+| **not connected** | ------- | red | 5V |
-Each USB plug pin should be connected via the wire in a color defined by the standard. It might be confirmed with a
+Each USB plug pin should be connected via the wire in a color defined by the standard. It might be confirmed with a
multimeter for additional safety. USB plug description:
| PIN | USB wire color | Signal |
-|---|---|---|
-| 4 | black | GND |
-| 3 | green | D+ |
-| 2 | white | D-|
-| 1 | red | 5V |
+| --- | -------------- | ------ |
+| 4 | black | GND |
+| 3 | green | D+ |
+| 2 | white | D- |
+| 1 | red | 5V |
See this [USB plug] image, and Wikipedia's [USB plug description].
-Plug in [USB-A_schematic.pdf] has wrong wire order, registered as [solo-hw#1].
+Plug in [USB-A_schematic.pdf] has wrong wire order, registered as [solo-hw#1].
-[solo-hw#1]: https://github.com/solokeys/solo-hw/issues/1
-[USB plug]: https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/USB.svg/1200px-USB.svg.png
-[USB plug description]: https://en.wikipedia.org/wiki/USB#Receptacle_(socket)_identification
-
-The power is taken from the debugger / board (unless the board is configured in another way).
+The power is taken from the debugger / board (unless the board is configured in another way).
Make sure 5V is not connected, and is covered from contacting with the board elements.
Based on [USB-A_schematic.pdf].
## Firmware modification
+
Following patch has to be applied to skip the user presence confirmation, for tests. Might be applied at a later stage.
+
```text
diff --git a/targets/stm32l432/src/app.h b/targets/stm32l432/src/app.h
index c14a7ed..c89c3b5 100644
@@ -45,54 +44,61 @@ index c14a7ed..c89c3b5 100644
+++ b/targets/stm32l432/src/app.h
@@ -71,6 +71,6 @@ void hw_init(void);
#define SOLO_BUTTON_PIN LL_GPIO_PIN_0
-
+
#define SKIP_BUTTON_CHECK_WITH_DELAY 0
-#define SKIP_BUTTON_CHECK_FAST 0
+#define SKIP_BUTTON_CHECK_FAST 1
-
+
#endif
```
-It is possible to provide a button and connect it to the MCU pins, as instructed in [USB-A_schematic.pdf]:
+
+It is possible to provide a button and connect it to the MCU pins, as instructed in [USB-A_schematic.pdf]:
+
```text
PA0 / pin 6 --> button --> GND
-```
+```
+
In that case the mentioned patch would not be required.
-[USB-A_schematic.pdf]: https://github.com/solokeys/solo-hw/releases/download/1.2/USB-A_schematic.pdf
+## Development environment setup
-
-# Development environment setup
Environment: Fedora 29 x64, Linux 4.19.9
-See https://docs.solokeys.io/solo/building/ for the original guide. Here details not included there will be covered.
+See for the original guide. Here details not included there will be covered.
-## Install ARM tools
-1. Download current [ARM tools] package: [gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2].
-2. Extract the archive.
-3. Add full path to the `./bin` directory as first entry to the `$PATH` variable,
-as in `~/gcc-arm/gcc-arm-none-eabi-8-2018-q4-major/bin/:$PATH`.
+### Install ARM tools
-[ARM tools]: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads
-[gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2]: https://developer.arm.com/-/media/Files/downloads/gnu-rm/8-2018q4/gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2?revision=d830f9dd-cd4f-406d-8672-cca9210dd220?product=GNU%20Arm%20Embedded%20Toolchain,64-bit,,Linux,8-2018-q4-major
-## Install flashing software
-ST provides a CLI flashing tool - `STM32_Programmer_CLI`. It can be downloaded directly from the vendor's site:
-1. Go to [download site URL](https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stm32cubeprog.html),
+1. Download current [ARM tools] package: [gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2].
+
+2. Extract the archive.
+
+3. Add full path to the `./bin` directory as first entry to the `$PATH` variable,
+ as in `~/gcc-arm/gcc-arm-none-eabi-8-2018-q4-major/bin/:$PATH`.
+
+### Install flashing software
+
+ST provides a CLI flashing tool - `STM32_Programmer_CLI`. It can be downloaded directly from the vendor's site:
+1\. Go to [download site URL](https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stm32cubeprog.html),
go to bottom page and from STM32CubeProg row select Download button.
-2. Unzip contents of the archive.
-3. Run *Linux setup
-4. In installation directory go to ./bin - there the ./STM32_Programmer_CLI is located
-5. Add symlink to the STM32 CLI binary to .local/bin. Make sure the latter it is in $PATH.
+2\. Unzip contents of the archive.
+3\. Run \*Linux setup
+4\. In installation directory go to ./bin - there the ./STM32_Programmer_CLI is located
+5\. Add symlink to the STM32 CLI binary to .local/bin. Make sure the latter it is in $PATH.
If you're on OsX and installed the STM32CubeProg, you need to add the following to your path:
+
```bash
# ~/.bash_profile
export PATH="/Applications/STMicroelectronics/STM32Cube/STM32CubeProgrammer/STM32CubeProgrammer.app/Contents/MacOs/bin/":$PATH
```
-# Building and flashing
-## Building
-Please follow https://docs.solokeys.io/solo/building/, as the build way changes rapidly.
+## Building and flashing
+
+### Building
+
+Please follow , as the build way changes rapidly.
Currently (8.1.19) to build the firmware, following lines should be executed
+
```bash
# while in the main project directory
cd targets/stm32l432
@@ -100,10 +106,11 @@ make cbor
make build-hacker DEBUG=1
```
-Note: `DEBUG=2` stops the device initialization, until a serial client will be attached to its virtual port.
+Note: `DEBUG=2` stops the device initialization, until a serial client will be attached to its virtual port.
Do not use it, if you do not plan to do so.
-## Flashing via the Makefile command
+### Flashing via the Makefile command
+
```bash
# while in the main project directory
# create Python virtual environment with required packages, and activate
@@ -112,27 +119,34 @@ make env3
# Run flashing
cd ./targets/stm32l432
make flash
- # which runs:
+ # which runs:
# flash: solo.hex bootloader.hex
# python merge_hex.py solo.hex bootloader.hex all.hex (intelhex library required)
# STM32_Programmer_CLI -c port=SWD -halt -e all --readunprotect
# STM32_Programmer_CLI -c port=SWD -halt -d all.hex -rst
```
-## Manual flashing
+### Manual flashing
+
In case you already have a firmware to flash (named `all.hex`), please run the following:
+
```bash
STM32_Programmer_CLI -c port=SWD -halt -e all --readunprotect
STM32_Programmer_CLI -c port=SWD -halt -d all.hex -rst
```
-# Testing
+## Testing
+
+### Internal
-## Internal
Project-provided tests.
-### Simulated device
+
+#### Simulated device
+
A simulated device is provided to test the HID layer.
-#### Build
+
+##### Build
+
```bash
make clean
cd tinycbor
@@ -141,7 +155,8 @@ cd ..
make env2
```
-#### Execution
+##### Execution
+
```bash
# run simulated device (will create a network UDP server)
./main
@@ -151,64 +166,86 @@ make env2
./env2/bin/python python-fido2/examples/credential.py
```
-### Real device
+#### Real device
+
```bash
# while in the main project directory
# not passing as of 8.1.19, due to test solution issues
make fido2-test
```
-## External
+### External
-### FIDO2 test sites
-1. https://webauthn.bin.coffee/
-2. https://github.com/apowers313/fido2-server-demo/
-3. https://webauthn.org/
+#### FIDO2 test sites
-### U2F test sites
-1. https://u2f.bin.coffee/
-2. https://demo.yubico.com/u2f
+1.
+2.
+3.
-### FIDO2 standalone clients
-1. https://github.com/Nitrokey/u2f-ref-code
-2. https://github.com/Yubico/libfido2
-3. https://github.com/Yubico/python-fido2
-4. https://github.com/google/pyu2f
+#### U2F test sites
+1.
+2.
-# USB serial console reading
-Device opens an USB-emulated serial port to output its messages. While Nucleo board offers such already,
+#### FIDO2 standalone clients
+
+1.
+2.
+3.
+4.
+
+## USB serial console reading
+
+Device opens an USB-emulated serial port to output its messages. While Nucleo board offers such already,
the Solo device provides its own.
-- Provided Python tool
+
+- Provided Python tool
+
```bash
python3 ../../tools/solotool.py monitor /dev/solokey-serial
```
-- External application
+
+- External application
+
```bash
sudo picocom -b 115200 /dev/solokey-serial
```
where `/dev/solokey-serial` is an udev symlink to `/dev/ttyACM1`.
-# Other
+## Other
-## Dumping firmware
+### Dumping firmware
Size is calculated using bash arithmetic.
+
```bash
-STM32_Programmer_CLI -c port=SWD -halt -u 0x0 $((256*1024)) current.hex
+STM32_Programmer_CLI -c port=SWD -halt -u 0x0 $((256*1024)) current.hex
```
-## Software reset
+### Software reset
```bash
STM32_Programmer_CLI -c port=SWD -rst
```
-## Installing required Python packages
-Client script requires some Python packages, which could be easily installed locally to the project
+### Installing required Python packages
+
+Client script requires some Python packages, which could be easily installed locally to the project
via the Makefile command. It is sufficient to run:
+
```bash
make env3
```
+[solo-hw#1]: https://github.com/solokeys/solo-hw/issues/1
+
+[usb plug]: https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/USB.svg/1200px-USB.svg.png
+
+[usb plug description]: https://en.wikipedia.org/wiki/USB#Receptacle_(socket)_identification
+
+[usb-a_schematic.pdf]: https://github.com/solokeys/solo-hw/releases/download/1.2/USB-A_schematic.pdf
+
+[arm tools]: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads
+
+[gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2]: https://developer.arm.com/-/media/Files/downloads/gnu-rm/8-2018q4/gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2?revision=d830f9dd-cd4f-406d-8672-cca9210dd220?product=GNU%20Arm%20Embedded%20Toolchain,64-bit,,Linux,8-2018-q4-major