Project 1 - Controlling a DC motor using PWM and monitoring its Running status

#include <avr/io.h>
#define F_CPU 16000000UL
#include <util/delay.h>

char seven_seg[10] = {0X3F, 0X06, 0X5B, 0X4F, 0X66, 0X6D, 0X7D, 0X07, 0X7F, 0X6F}; //setting the 7 segment display values in an array
int main(void)
{
DDRC=0xFF; //making port C as output
DDRB=0xFF; //making port B as output
int i=0;
int j=0;
while (1)
{
PORTC=seven_seg[i];
PORTB=seven_seg[i];
for(int i=0;i<10;i++)
{
PORTC=seven_seg[i]; //displaying in port C
for(j=0;j<10;j++) //loop to display the values till 9 keeping the other value constant in an iteration
{
PORTB=seven_seg[j]; //displaying in port B
_delay_ms(1000); //delay of 1000ms
}

}
}
}