Question

2. Given the following setup for GPIO (fill in all the blanks, refer to pages 1-4) GPIOB_MODER 0x10000 //GPIOB_OTYPER is not needed as its default value is zero GPIOB_OSPEEDRI=0x3000; GPIOBPUPDRI= 0x80; - a. Which port is being initialized? Port b. Describe the important features from the initialization for pin 3 Ifor example input, output, alternate function, analog, pull up, pull down, push/pull, open drain out, speed, etc.). Px3 is initialized to be c. Which pin is being initialized as an output and what are its important features? Px 2 is initialized to be a digital output with 4 d. We want to connect an LED to one of the pins and a push button to the other. Show a diagram of how we would connect these items and the port pins to which they are connected. e. Write a simple 2-line code that will read the state of the push button, load it into a variable called "state" and write the value to the LED (you do not.need to initialize the variable).