Marking of Final Exam

Question 1 (10 marks)

• 1 : correct inputs and outputs
• 1 : enough states (at least 4)
• 2 : in one-closed-valve states : continue only if door closed and button pressed
• 2 : in two-closed-valve states : no change if door closed and button pushed
• 2 : in two-closed-valve states : revert if door open and button pushed
• 2 : in two-closed-valve states : continue if door closed and button released

Question 2 (10 marks)

(a)

• 1 : correct declaration including return type of void
• 2 : correct sequence of tests for corrects bits in the correct order

  (b)

• 1 : function declaration including return and parameter types
• 1 : if/else statement with correct arguments
• 1 : correct sequence of values written to correct addresses
• 1 : correct interleaving of wait() statements

  (c)

• 1 : correct function declaration including void return type
• 1 : correct while statement
• 1 : correct call to signal including correct argument

Question 3 (4 marks)

• 2 : correct equation
• 2 : correct schematic

Question 4 (12 marks)

• 4 : (a) 1 mark per right answer for part (a)
• 6 : (a) 1 mark per right answer for part (b)
• 2 : 1 mark for each of resolution (volts) and accuracy (bits)