With 8255 interface (micro controllers)

I will attach three documents (one is a pdf with code, second is the coursework requirements and instructions and the third one is just to get a sense of a work) For the part A, you dont need to create a code, you need to write a reports based on requirements and using already written code. For the part B, the small addition to a code is needed. The word count should be calculated only from the report, not from the code itself. The code should be at the appendix. Please read the coursework requirements and instructions.