Practical C Programming

How it works...

We will define a variable called LED of the sbit type. The sbit type defines a bit within a special function register (SFR). We will set the LED variable to represent the 0^th-bit position of port P1. Then, we will define a prototype of the Delay function, which takes an integer parameter but returns nothing. Within the main function, we will execute a while loop in an infinite loop. Within the while loop, we will set the LED variable to 0, that is, a LOW signal will be sent to the 0th bit of port P1.

Thereafter, we will introduce a delay through two nested loops. After the delay, we will set the value of the LED variable to 1, that is, a HIGH signal will be sent to the 0th bit of port P1. If the LED is connected to the 0th ...