Generate a Square Wave with C Programming

/* ************************************ This is a program to generate a** square wave without using interrupt** The frequency of the square wave depends** upon the frequency of crystal used** Compiler : MIDE-51************************************/#include <8051.h>

 bit PinStatus=1;

void Toggle(void)           {           PinStatus = !PinStatus;           P1_1 = PinStatus;           return;           }

void main(void)           {

 while (1)           Toggle();

 return;           }