Update main.c

Add switch press data sent logic

main.c

@@ -23,3 +23,28 @@ void UART1_WRITE(char data)
     while (UART1_FR_R & 0x20);       // Wait until TX FIFO is not full
     UART1_DR_R = data;               // Write data to UART data register
 }
+void GPIOF_interruptHandler(void)               // Interrupt handler for GPIO Port F
+{
+    //delay(200000); // Debounce delay
+    // Check PF4 (Switch 2)
+    if (GPIO_PORTF_RIS_R & 0x10)  // Check if PF4 caused the interrupt
+    {
+        //GPIO_PORTF_DATA_R |= 0x02;              // Toggle RED LED (PF1)
+        //delay(500000);
+        UART1_WRITE(0xF0);
+        STATUS_LED(UART1_READ());
+        //GPIO_PORTF_DATA_R = 0x00;              // Toggle RED LED (PF1)
+        GPIO_PORTF_ICR_R = 0x10;                // Clear interrupt flag for PF4
+    }
+
+    // Check PF0 (Switch 1)
+    if (GPIO_PORTF_RIS_R & 0x01)  // Check if PF0 caused the interrupt
+    {
+        //GPIO_PORTF_DATA_R |= 0x04;              // Toggle RED LED (PF1)
+        //delay(500000);
+        UART1_WRITE(0xAA);
+        //GPIO_PORTF_DATA_R = 0x00;
+        STATUS_LED(UART1_READ());
+        GPIO_PORTF_ICR_R = 0x01;                // Clear interrupt flag for PF0
+    }
+}