# BCORNE firmware (DH747 / STM32F401)

Keyboard target: `sh01/m36:via`

## Prerequisites

1. Install [QMK CLI 1.2.0](https://docs.qmk.fm/#/cli) (or QMK MSYS on Windows).
2. Clone vial-qmk at the IFKB-pinned commit:

```bash
git clone https://github.com/vial-kb/vial-qmk.git
cd vial-qmk
git checkout fcd56b119ea8c60142c9a03e997be5a7acba52b7
make git-submodule
```

## Install this keyboard port

Copy the contents of this folder into vial-qmk:

```bash
mkdir -p keyboards/sh01/m36
cp -r /path/to/kb-layouts/corne/firmware/* keyboards/sh01/m36/
```

The make target comes from that path: `keyboards/sh01/m36` → `sh01/m36:via`.

## Build

```bash
make sh01/m36:via
```

Output: `sh01_m36_via.uf2` in the vial-qmk root.

## Flash

Flash **both halves** with the same UF2 file:

1. Connect the half to USB (left half is the normal USB host side).
2. Double-tap the reset button (not single tap).
3. A drive named `IFKB` should appear.
4. Drag the `.uf2` file onto the drive.
5. Repeat for the other half.

After flashing, load `../corne.vil` in Vial to restore your keymap.

## RGB brightness dial

Brightness step size is controlled in `config.h`:

```c
#define RGB_MATRIX_VAL_STEP 1
```

With `max_brightness: 50` in `info.json`, step `1` gives 51 brightness levels.
Increase to `2` or `4` if the dial feels too slow.