This is a follow-up of the previous Tutorial as a lot of things remained unexplained like how to customize or use the Makefile suitewhy using an infinite loop inside main (it’s a common question from freshers)why we need a cpu clock (like we have used 1MHz for the hello_world)where did those DDRB,PORTB stuffs come from and so on. Let’s walk through them one by one. Continue reading