Write a C program to control the MSP432 Control the LCD brightness (ADC and PWM)

a. LCD Backlight must be driven by a PWM using Timer A. The value for this PWM is calculated based on a 0% and 100% ratio of a potentiometer, measured via ADC.
b. This needs to be done via a transistor connected to the MSP. Do not try to drive the LCD brightness directly from the MSP pins.
c. Do NOT hook up the potentiometer directly to the LCD screen. Remember, brightness is not the same thing as the contrast potentiometer (which you still need, this potentiometer can be wired directly to V0).