- Successful compilation with Zephyr 4.3.0
- Basic gs_usb USB interface implementation
- CAN-FD support with FDCAN2 interface
- PFET control via UART (simplified from USB CDC)
- Custom board definition for STM32G0B1KBU6
- Deprecated warnings present but functional
- Memory usage: 51KB Flash (9.8%), 21.6KB RAM (14.7%)
Next: Migrate to new USB device stack API to remove warnings
- Remove bit-rate properties that are not declared in binding
- Use minimal FDCAN configuration like candlelight board
- Keep only pinctrl and status properties
- Remove CONFIG_BOARD_EWS from defconfig (auto-generated in new Zephyr)
- Replace deprecated 'bus-speed' with 'bit-rate' properties for FDCAN
- Replace deprecated 'bus-speed-data' with 'bit-rate-data' properties
- Change from fdcan1 to fdcan2 for PB0/PB1 pins on STM32G0B1
- Update pinctrl references to fdcan2_rx_pb0 and fdcan2_tx_pb1
- Update zephyr,canbus reference to fdcan2