Vending Machine With VHDL

1
Vending Machine With VHDL

• Rajesh Kurpad
• Jonathan Bittner
• James Michelich
• Keeram Lee

2
Project Goals

• To design and simulate a fully functional vending
  machine with VHDL
• Modular design

3
Overview of System
4
Modules

• Vending Machine Package
• Defines coin, row, col, and item types
• Functions
• get_item_selection
• get_item_price
• dispense_coin

5
Modules, Cont.

• Main

6
Modules, Cont.

• Change Insertion Handler

7
Modules, Cont.

• Item Selection Handler

8
Modules, Cont.

• Change Dispensing Handler

9
Simulation

• Normal Operation with change returned

10
Simulation, Cont.

• Insufficient amount of money inputted

11
Simulation, Cont.

• Output is 2 dimes, 1 nickel instead of a quarter

12
Synthesis - Main
13
Synthesis Change Insertion
14
Synthesis Item Selection
15
Synthesis Change Dispensing
16
Final Words and Questions

• ???