ACLK (32768 Hz) to generate a one second timer and toggles an LED

How to Write a C Program to Real Time Clock (One Second Timer) to Use ACLK (32768 Hz) to generate a one second timer and toggles an LED in C Programming Language ?

Solution:
/* Real Time Clock (One Second Timer)
 * Description: Uses ACLK (32768 Hz) to generate a one second timer and toggles an LED.
 */