Add UART Read function

main.c

@@ -23,6 +23,15 @@ 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
 }
+
+char UART1_READ(void)
+{
+    while (UART1_FR_R & 0x10);       // Wait until RX FIFO is not empty
+    return (char)UART1_DR_R;         // Return received data
+}
+
+
+
 void GPIOF_interruptHandler(void)               // Interrupt handler for GPIO Port F
 {
     //delay(200000); // Debounce delay