Implemented and modified system level drivers
- Implemented drivers:
- IWDT (Independent Watchdog Timer)
- TIMER (General-purpose timers)
- I2C (Inter-Integrated Circuit)
- Updated / modified drivers:
- ADC (code formatting)
- DELAY (code formatting)
- GPIO (code formatting)
- UART (code formatting and added RX interrupt support)
- SPI (code formatting)
- PWM (code formatting)