1. Design the interface for a positive logic switch to TM4C123GXL Port A pin 7. Show formulas and calculations for each circuit element. Draw the circuit schematics with components labelled with their names and values. Wrte the C code as a fmnction to initialize the port for interfacing the switch. Write a function to read the data value of Port A pin 7. Comment your code to explain each initialization step clearl;y 1. Design the interface for a positive logic switch to TM4C123GXL Port A pin 7. Show formulas and calculations for each circuit element. Draw the circuit schematics with components labelled with their names and values. Wrte the C code as a fmnction to initialize the port for interfacing the switch. Write a function to read the data value of Port A pin 7. Comment your code to explain each initialization step clearl;y