STM32 Input Capture using TIM2 (STM32F446RE)

This project demonstrates Input Capture mode on the STM32F446RE microcontroller using TIM2 Channel 1.
It measures the timer value when a rising edge occurs on the input pin.

---

🔧 Hardware Setup

• MCU: STM32F446RE (Nucleo Board)
• Input Pin: PA0 (TIM2_CH1)
• Clock Source: HSI (16 MHz)
• Prescaler: 15999 → Timer tick = 1 ms
• Mode: Input Capture (Rising Edge)

---

🧠 Functionality

• Starts Timer 2 in Input Capture interrupt mode.
• Captures the counter value at each rising edge.
• Stores live counter in variable counter.
• Captured value from interrupt stored in capture.

---

📂 Key Files

• main.c → Peripheral initialization and main loop.
• stm32f4xx_it.c → Interrupt handler for TIM2 capture.
• main.h → Function prototypes and includes.

---

🧰 Tools Used

• STM32CubeIDE
• STM32CubeMX
• HAL Drivers
• C Language (C99)

---

⚙️ How to Run

1. Open project in STM32CubeIDE.
2. Connect Nucleo-F446RE via USB.
3. Build and flash.
4. Monitor capture values via debugger or serial output.