includ Solutionyou need to change volatile unsigned int s 1

Solution

you need to change

volatile unsigned int s = 1;

because in while(s) -- if \'s\' is 0 then code in while loop will not be executed, so you need to change it to some possitive number anything except 0. carefull it will lead you to infinate loop so need to break the loop. Two ways to break it using break statment and failing the condition (assigning s =0 inside loop)