Objective Design a gumball machine control logic, including the finite state machine and circuit design. Problem Statement The gumball machine delivers a piece of gum after receiving 15¢ in coins. The machine has a single coin slot that accepts nickels and dimes, one coin at a time. A mechanical sensor indicates to the control whether a dime or a nickel has been inserted into the coin slot. The input N is asserted when a nickel is inserted into the coin slot. D is asserted when a dime is deposited. The machine asserts OPEN for one clock period when 15¢ or more has been deposited since the last reset. Then the controller's output causes a single piece of gum to be released down a chute to the customer. The machine does not give change. A customer who pays with two dimes get a piece of gum, but overpays 5¢. Coin Gum Gum release sensor dispenser mechanism FSM Reset CLK • Nis asserted for 1 clock period when a nickel is inserted into the coin slot. • Dis asserted for 1 clock period when a dime is inserted into the coin slot. • Machine asserts Open for one clock period when 15¢ (or more) has been deposited since the last reset. This does not completely define the behavior of the FSM. For example, what happens if a penny is inserted into the coin slot, or what happens after the gum is delivered to the customer? Let's assume that: • Coin sensor returns coins it does not recognize. • External logic resets the machine after the gum is delivered.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
icon
Related questions
Question

mechatronics home work

Objective
Design a gumball machine control logic, including the finite state machine and circuit
design.
Problem Statement
The gumball machine delivers a piece of gum after receiving 15¢ in coins. The machine
has a single coin slot that accepts nickels and dimes, one coin at a time. A mechanical
sensor indicates to the control whether a dime or a nickel has been inserted into the
coin slot. The input N is asserted when a nickel is inserted into the coin slot. Dis
asserted when a dime is deposited.
The machine asserts OPEN for one clock period when 15¢ or more has been deposited
since the last reset. Then the controller's output causes a single piece of gum to be
released down a chute to the customer.
The machine does not give change. A customer who pays with two dimes get a piece of
gum, but overpays 5¢.
Coin
N
Gum
Gum release
sensor
dispenser
mechanism
FSM
Reset
CLK
• Nis asserted for 1 clock period when a nickel is inserted into the coin slot.
• Dis asserted for 1 clock period when a dime is inserted into the coin slot.
• Machine asserts Open for one clock period when 15¢ (or more) has been
deposited since the last reset.
This does not completely define the behavior of the FSM. For example, what
happens if a penny is inserted into the coin slot, or what happens after the gum is
delivered to the customer? Let's assume that:
Coin sensor returns coins it does not recognize.
• External logic resets the machine after the gum is delivered.
Transcribed Image Text:Objective Design a gumball machine control logic, including the finite state machine and circuit design. Problem Statement The gumball machine delivers a piece of gum after receiving 15¢ in coins. The machine has a single coin slot that accepts nickels and dimes, one coin at a time. A mechanical sensor indicates to the control whether a dime or a nickel has been inserted into the coin slot. The input N is asserted when a nickel is inserted into the coin slot. Dis asserted when a dime is deposited. The machine asserts OPEN for one clock period when 15¢ or more has been deposited since the last reset. Then the controller's output causes a single piece of gum to be released down a chute to the customer. The machine does not give change. A customer who pays with two dimes get a piece of gum, but overpays 5¢. Coin N Gum Gum release sensor dispenser mechanism FSM Reset CLK • Nis asserted for 1 clock period when a nickel is inserted into the coin slot. • Dis asserted for 1 clock period when a dime is inserted into the coin slot. • Machine asserts Open for one clock period when 15¢ (or more) has been deposited since the last reset. This does not completely define the behavior of the FSM. For example, what happens if a penny is inserted into the coin slot, or what happens after the gum is delivered to the customer? Let's assume that: Coin sensor returns coins it does not recognize. • External logic resets the machine after the gum is delivered.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

Blurred answer
Knowledge Booster
Synchronous Generator
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,