This chapter provides guidelines to be used to tailor the VHDL DID and discusses an example. ALL; ENTITY VendingMachine2 IS PORT ( clk :IN STD. 1 of 20 091707 DS1WM ® The operation of the 1-Wire bus is described in detail in , Semiconductor Corp. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers. The Datasheet Archive. vhdl code g704 datasheet, cross reference, circuit and application notes in pdf format. Abstract: smd 7456 QEA95 TCXO 12,800 MHz TEMEX ttf 95 Text: with the earlier TTF 95 datasheet. 0 errors, 1 warning. , a wholly owned subsidiary of Maxim Integrated Products, Inc. ALL; -Uncomment the following library declaration if using arithmetic functions with Signed or Unsigned values. Add this topic to your repo. Currently I am studying the "Circuit Design with VHDL" by Volnei A. • Algorithmic State Machine (ASM) charts provide a less ambiguous description of a sequential system than state diagrams. Review the vending machine example FSM minimization Algorithm and examples. 7LANGUAGE: VHDLthe conventional way of making a Vending machine using. vhdl finite-state-machine vivado digital-design debounce-button nexys4 random-numbers. Abstract: vhdl pid EPF10K30 vhdl pid controller USB Controller USB 1. vhdl code for 32 bit carry select adder datasheet, cross reference, circuit and application notes in pdf format. The machine starts when a laundry token is deposited. A finite state machine is an abstract machine that can be in any number of states at any given time. Search. A tag already exists with the provided branch name. Central to this design process is the use of a high level description language, VHDL, to implement and debug certain hardware. code voltage regulator vhdl datasheet & applicatoin notes - Datasheet Archive The Datasheet ArchiveCandy machines can be filled with chocolates, bubble gum, and candies. The Datasheet Archive. Code. ,S8 have identical behavior=> combine into a single state Minimized symbolic state transition table present inputs next output state D N state open 0¢ 0 0 0¢ 0 01 5¢ 0 1 0 10¢ 0 11 X X 5¢ 0 0 5¢ 0. to consumers when a vendee inserts a coin, token or cards into the machine[1]. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. VHDL (VHSIC Hardware Description Language) is a hardware description language used in electronic design automation to describe digital and mixed-signal systems such as field-programmable gate arrays and integrated circuits. 15 shows the VHDL architecture for the vending machine controller. " GitHub is where people build software. The finite state machines (FSMs) are significant for understanding the decision making logic as well as control the digital systems. Good locations for drink vending machines are usually areas where people are looking for that quick pick-me-up. The temporary variables tmp_out_0 and tmp_out_1. Feeds Parts Directory Manufacturer Directory. The sequence being detected was "1011". Once the refund has been issued, the FSM must return to st0. (Research and Markets) Although vending machine sales took a hit due to the. Initial vending-machine state diagram Minimized Vending Machine’s States Minimize number of states - reuse states whenever possible S4,S5…. INTRODUCTION Vending Machines are used to dispense various products like Coffee, Snacks, and Cold Drink etc. Reverse Vending Machine process by accepting plastic items and gives coins as a reward according to the weight of plastic items. This VM . home automaton using pc ppt Rajesh Kumar. Top Results (6) Part ECAD Model Manufacturer Description Download Buy BD86852MUF-C: ROHM Semiconductor PMIC for Automotive Camera: BD18395EFV-M: ROHM Semiconductor Buck LED Driver for Automotive Suitable for Matrix LED Control: BU18JA3DG-C: ROHM Semiconductor3. Vending Machines have been in. Mock vending machine. 0 resume - USB - USB Sapien Design, Inc. 3. fsm fpga processor vhdl mux vendingmachine comparator accumulator vending-machine vhdl-code full-adder Updated Jul 20, 2021; VHDL. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers. FSM with output example. 1K views•37 slides. pdf","contentType":"file"},{"name. This article addresses the encoding of, and the data types used, for the state register. Vending Machines have been in existence since 1880s. Question: desing an VHDL code using the following:VENDMACH is a vending machine that accepts nickels, dimes, and quarters, and dispenses gum, apple, or yogurt. Requires asynchronous reset. STEP 1 Textual description. {"payload":{"allShortcutsEnabled":false,"fileTree":{"vending-machine":{"items":[{"name":"design. 6 billion by 2027. Vending Machine Overview. The purpose of the project is to employ RTL design to implement a simple vending machine. 6. Chronological. Items 1 to 32 of 267 total. Search. The Case statement contains a When statement for each of the possible. 5 yrs CN Supplier. BOARD:XILINX SPARTAN 3ETOOL: XILINX ISE DESIGN SUITE 14. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. The code for the vending machine is written in Verilog HDL and simulated in the Model Sim. shubham goyal Follow. Feeds Parts Directory Manufacturer Directory. Output. std_logic_1164. (two push buttons) Display sum on two 7-segment displays (hex. This paper describes design and implementation of vending machine using Finite State Machine (FSM) machine. Feeds Parts. Design. It has 4 products; Each product has different prices; With SW[6] and SW[7] switches you select one of four product. After running simulation, the correct result should be shown as follows: TIME = 110, data_out = 1, mem = 1. Give your vending business the boost it needs with beverage vending equipment. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbersDistributors: Part: Package: Stock: Lead Time: Min Order Qty: 1: 10: 100: 1,000: 10,000vhdl code for dvb-H datasheet, cross reference, circuit and application notes in pdf format. The system has one input signal called P, and the value of P determines what state the system moves to next. The design code is given below. A finite state machine is an abstract machine that can be in any number of states at any given time. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Write better code with AI Code review. Issn Online-At the present days, Vending Machines are well known among Japan, Malaysia and Singapore. 3 Bar) - Quarter Tape & Reel, SON-11: Datasheet ND015A-SM02-RThe output of state machine are only updated at the clock edge. fsm fpga processor vhdl mux vendingmachine comparator accumulator vending-machine vhdl-code full-adder Updated Jul 20, 2021; VHDL. Once the refund has been issued, the FSM must return to st0. Download to read offline. This FSM has four states: A, B, C, and D. These machines can be implemented in different ways by. donnu. 7 using Verilog HDL language. To associate your repository with the vending-machine topic, visit your repo's landing page and select "manage topics. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. VHDL codes for 8-bit Vending Machine Processor, support for two drinks & three types of coins. 5nis, 1 nis. It has a single coin slot that accepts one coin (25 Krş, 50 Krş or 100 Krş) at a time. doc), PDF File (. Abstract. Improve this answer. Contact Me. Top Results (6) Part ECAD Model Manufacturer Description Datasheet Download Buy Part SP110-SM02-M: Superior Sensor Technology. Two inputs a and b are input signals on which operation is going to be performed according to opcode input. The Datasheet Archive. 25. are Deposited. expiry date feature using VHDL, in this paper the author described Finite State Machine based automatic dispense machine using Xilinx ISE 14. Our full line of soda pop and drink. Abstract: vhdl code for vending machine VENDING MACHINE vhdl code vhdl code for half adder vhdl code for shift register using d flipflop half adder how vending machine work vhdl code for soda vending machine 16V8 20V8 Text: fax id: 6252 1CY 312 5 CY3120 Warp2® VHDL Compiler for PLDs. This paper aims to design an FSM based. Programmed a state machine using VHDL that simulated inputs and outputs such as inserting coins, dispensing a drink, and displaying the. Search. Level up your coding skills and quickly land a job. *. Vending machines can dispense small different products such as beverages, snacks, cigarette, consumer products. 00. The Datasheet Archive. contains: fsm, Accumulator, comparator, subtractor, mux, Adder, etc. S. You can use different combination of money, example $5, $1, 25 cents, 10 cents, and 5 cents. We choose FPGA for this vending machine since FPGA based vending give quicker response and absorbed less power and reprogrammed anytime as compared to CMOS vending machine. Custom carbon wrap is available. Jenkins and Prof. Digital System Design with FPGA: Implementation Using Verilog and VHDL begins with basic digital design methods and continues, step-by-step, to advanced topics, providing a solid foundation that allows you to fully grasp the core concepts. md. clock vhd buzzer digit digital-clock basys3 digilent vhdl-code basys3-fpga basys3-clock-alarm buzzer-termination. 55) to RAM for each product) Vending (Requires correct amount of coins to be input in order to dispense the product)The vending machine provides 2 products and accepts 3 types of coins: 0. Example: A Vending Machine Controller • Example: Design a finite state machine for a vending machine controller that accepts nickels (5 cents each), dimes (10 cents each), and quarters (25 cents each). In this article, you can learn about the basics of FSM and. Abstract: vhdl pid EPF10K30 vhdl pid controller USB Controller USB 1. Usual example: A vending machine 15 cents for a cup of coffee Doesn’t take pennies or quarters Doesn’t provide any change Vending Machine FSM N D Reset Clock Coin Open Sensor Release Mechanism CSE370, Lecture 23 4 A vending machine: After state minimization symbolic state table present inputs next output state D N state open 0¢ 0 0. This Project is the Realization of Vending Machine on Xilinx Spartan 3e FPGA. Bcd excess diagram logic converter code Vhdl tutorial – 4: design, simulate and verify all digital gate (and Implementation of basic logic gates using vhdl in modelsim. $2,000. vending machines are used to dispenses small different products (snacks, ice creams, cold drinks etc. Additionally, some synthesis tools (typically ones you would have to pay for) also support this. This block of code creates the state registers that hold the next_state and present_state variables. It. A vending machine is a machine which dispenses items such as snacks, beverages, alcohol, cigarettes, lottery tickets, consumer products and even gold and gems to customers automatically, after the customer inserts currency or credit into the machine. Due to better quality product and fast processing speed users of vending machines are increasing in metropolitan cities. Feeds Parts Directory Manufacturer Directory. VHDL Code, when I try to simulate it, the signals does not work, losses, show a orange color: Created a project for my Zybo Z7 - 7010 but it wont work. 5A). Presentation on vending machine controller using vhdl. Search. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers. Feeds Parts Directory Manufacturer Directory. Newest First. contains: fsm, Accumulator, comparator, subtractor, mux, Adder, etc. A simple VHDL code that describes the hardware needed to implement a vending machine. Active High input switches A_order, B_order, and C_order are to be used to simulate selecting an item. Looking for bulk candy for your vending machine or event? CandyMachines. The second part is to simulate a simple vending. “VHDL primer,” Third Edition. In Mealy the transitions determine the output (/0, /1). 5 ppm +5 V or +3 V Supply Voltage 95 or. Then, in each case, select the next state according to the state diagram, as shown in figure 4. design of micro architecture using VHDL datasheet, cross reference, circuit and application notes in pdf format. 1) Remove use IEEE. Finite State Machine (FSM. ieee vhdl projects free datasheet, cross reference, circuit and application notes in pdf format. ABOUT US. Vending Machine Technologies: A Review. I might need more help from you guys. 2 Answers. VHDL State Machine Coding Example. I am trying to build a finite state machine in verilog for a vending machine that accepts 5,10, 25 cents as inputs and then output a a soda or diet and also output the appropriate change(as the num. Started by glallenjr December 1, 2009. Also, the machine could cancel the request and give back the calculated extra money by coins. • Implementation of an electronic system for measuring water salinity. tmp_save","path":"isim. Top Results (6) Part ECAD Model. Abstract: No abstract text available Text: Cypress 's WarpTM Leads Programmable Logic Into a New Era of HDL Design Warp Release 6. Review the vending machine example. Add this topic to your repo. Superior Sensor Technology Absolute Pressure Sensor 150 psia (10. Due to better quality product and fast processing speed users of vending machines are increasing in metropolitan cities. Check Details. Reply Delete reply reply Hirwani SEPTEMBER 5 2015 at 7:33 oclock we want Verilog code for energy-efficient. The vending machines 5. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers. Feeds Parts. Stack Overflow. Arduino based Vending Machine. 25. Feeds Parts. 소스코드 및 설명 (Moore 설계) 14 :. Texas Instruments 4-Bit Binary Full Adder with Fast Carry 16-CDIP -55 to 125: 5962-9758701Q2AThe multidrop bus used by vending machine controllers to communicate with the vending machine's components, such as a currency detector, is also called MDB (for Multi-Drop Bus). Coffee Vending Machine Circuit Diagram - Free Wiring Diagram. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbersThe Finite State Machine is an abstract mathematical model of a sequential logic function. vhdl code of ripple carry adder datasheet, cross reference, circuit and application notes in pdf format. A paper that proposes an efficient algorithm for implementation of vending machine on FPGA board. VHDL code for generate sound datasheet, cross reference, circuit and application notes in pdf format. Search. Melay machine finite state machine vhdl design. The machine accepts coins, calculates the total amount, and allows users to select snacks, coffee, cold drinks, or candy. when money is inserted into it. respectively. 9K views•16 slides. Top Results (6) Part ECAD Model Manufacturer Description Datasheet Download Buy Part Free-Tool-Download-EZ-0005-EZ-0006. Sorted by: 4. The Datasheet Archive. 8. Mealy state machine require only three states st0,st1,st2 to detect the 101 sequence. The proposed vending machine is designed using FSM modellingand is coded in VHDL language. Feeds Parts Directory Manufacturer Directory. Catalog Datasheet MFG & Type PDF Document Tags; 2002 - vhdl code for vending machine. This is which circle you are on on the state diagram. In use since the 1980s, it is now an open standard of the National Automatic Merchandising Association, or NAMA. vho in folder "C:/VHDL code/Vending machine/simulation/qsim//" for EDA simulation tool. 8. Sachin Sood Scientist ‘ F ’ for giving me this opportunity to complete my project in this reputed organization. The sequence being detected was "1011". e. Info: Quartus Prime EDA Netlist Writer was successful. . The sum of in1 and in2 is an output of the state machine in state_1 and state_2. All 9 VHDL 3 Verilog 3. Inventory: $250. Once 50 cents is reach, the user has the option to. Get the book here: This video cove. FSMs are implemented in real-life circuits through the use of Flip Flops. This project has been created in BİL205 Logic Design class; Created with Altera Quartus; For Altera DE2-115; What does it do. Vending machine controller in VHDL – design description and entity definition. The Datasheet Archive. State diagram in Sigasi Studio XPRT. Sorted by: 2. The Datasheet Archive. vhdl code 4794 datasheet, cross reference, circuit and application notes in pdf format. 5nis, 1 nis an. Vending Machine. VHDL IMPLEMENTATION The first step of design process is design requirements like Yes frequency of operation. These types of mini chocolate bar vending machine for sale usually attract kids and when placed in an ideal location, they can be quite profitable. 45335 Potawatami Dr. That balance will be. The design is simulated in VHDL and. The controller's output causes a single item to be released. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. Vending Machine Controller—using VHDL and Logicworks 5. In vending machine, the person can refill napkins when stock is out. The top level entity of melay machine fsm is below. VHDL based vending machine program. Search. 4. 2. S. I write a VHDL program for Mealy machine that can detect the pattern 1011 as the following: LIBRARY ieee; USE ieee. The system to be designed is a very simple one and its purpose is to introduce the idea of converting a FSM into VHDL. machine. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. "Implementation of FSM Based Automatic Dispense Machine with Expiry Date Feature Using VHDL," International Journal of. 75, B for 2. VHDL Programming. Catalog Datasheet MFG & Type PDF Document Tags; 1996 - Not Available. INTRODUCTION • (PART 1:CO2-A3) A vending machine is a machine which dispenses items such as snacks, beverages, alcohol, cigarettes, lottery tickets, consumer products and even gold and gems to customers automatically, after the customer inserts currency or credit into the machine. verilog code for mimo ofdm datasheet, cross reference, circuit and application notes in pdf format. I. Feeds Parts Directory Manufacturer Directory. md","contentType":"file"},{"name":"serv_req_info. The purpose of the project is to employ RTL design to implement a simple vending machine. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbersfirdevser/vending-machine 3 commits firdevser/LAB2_SFEr 2 commits firdevser/lab7 2 commits firdevser/lab4_SFirdevsEr 2 commits firdevser/trials 1 commit. 3 ACKNOWLEDGMENT I thank Mr. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. Vending Machine Technologies: A Review. 43 best circuits images 8 circuit design tips Dff circuit quartus modelsim vending machine using generate signal does simple ii use used. FSM; VHDL; Vending Machine; FPGA Spartan 3 development board; INTRODUCTION. Implements a RTL description of a vending machine processor using VHDL to control a vending machine - GitHub - mojoelectrical/Soda-Vending-Machine-VHDL-: Implements a. The Datasheet Archive. Catalog Datasheet MFG & Type PDF Document Tags; 2002 - verilog code for vending machine using finite state machine. pdf","path":"vending-machine/design. D Flip-Flop (DFF) Ripple Carry Counter $display System Task4. In this machine at most one transition is possible. $8,888. UpDw is a single bit input. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. You learn best from this video if you have my textbook in front of you and are following along. vhdl code for ldpc datasheet, cross reference, circuit and application notes in pdf format. HDL Implementation of Vending Machine Controller 2013 CHAPTER 2 VENDING MACHINE AND ITS HISTORY A vending machine is a machine which dispenses items such as snacks, beverages, alcohol, cigarettes, lottery tickets, cologne, consumer products and even gold and gems to customers automatically, after the customer inserts currency or credit into the machine. Question: PROJECT SUMMARY In this two week project, you will apply knowledge from your theory course and previous labs, designing, simulating (functional verification) and implementing a Vending Machine Controller (based on the FSM concept) using VHDL Language Xilinx ISE tools and Digilent ADEPT software. The Datasheet Archive. Feeds Parts Directory Manufacturer Directory. • Image watermarking methods (Oral presentation). Top Results (6) Part ECAD Model Manufacturer Description Datasheet Download Buy Part BM2P161W-Z: ROHM Semiconductor. The external devices such as keypad, display can be connected through the various pins on the Arduino Uno. The detail of the entire signal with their direction and description is shown in table 2. Feeds Parts. – State diagrams do not provide explicit timing information. Abstract: DS18B20 8051 code vhdl ds1820 DS18S20 application with 8051 vhdl 1-wire 1 wire microcontroller dallas ds18X20 ds18b20 code AN162 Temp sensor DS18B20 Text: TM Dallas Semiconductor's VHDL 1-Wire Master Controller in a. fpga verilog finite-state-machine vending-machine spartan-3VHDL_Vending_Machine_controlelr. The Datasheet Archive. A user asks for help with a VHDL code for a vending machine that selects coins and gives money back and items. Usual example: A vending machine 15 cents for a cup of coffee Doesn’t take pennies or quarters Doesn’t provide any change Vending Machine FSM N D Reset Clock Coin Open Sensor Release Mechanism CSE370, Lecture 23 4 A vending machine: After state minimization symbolic state table present inputs next output state D N state open 0¢ 0 0 0¢ 0 0. Thanks guys the links were helpfull. candy vending machine-VHDL. Good locations for drink vending machines are usually areas where people are looking for that quick pick-me-up. contains: fsm, Accumulator, comparator, subtractor, mux, Adder, etc. 3. Top Results (6) Part ECAD Model. FSM; VHDL; Vending Machine; FPGA Spartan 3 development board; 1. This VHDL project presents a full VHDL code for Moore FSM Sequence Detector. md","contentType":"file"},{"name":"serv_req_info. This is a VHDL project to implement a Vending Machine. Vending machines can dispense small different products such as beverages, snacks, cigarette, consumer products. Feeds Parts Directory Manufacturer Directory. A VHDL Testbench is also provided for simulation. The soda price can be specified by an 8-bit inputs. ) Warp2 will also Original: PDFEdit, save, simulate, synthesize SystemVerilog, Verilog, VHDL and other HDLs from your web browser. Any place that people gather, pass by, or must wait, is a good location for vending machines. VHDL codes for 8-bit Vending Machine Processor, support for two drinks & three types of coins. std_logic_1164. Vending Machine Consider a simple vending machine. This paper aims to design an FSM based. 1. Are you looking for a coffee machine for your office? A juicer for your hotel? A snacks vending machine for your members? Come and check our services. " GitHub is where people build software. state-transition table 3. Vending Machine. 3. Finite State Machines or FSMs are widely used in vending machines, traffic lights, security locks, and software algorithms. design is implemented in VHDL and simulated using Xilinx VIVADO 2019. In this model, the descriptive state names Wait, 25¢, and 50¢ cannot be used directly. Implementation of a Linear Feedback Shift Register in VHDL and its synthesis on ZyBo Board by Xilinx. This VM . The FPGA based Vending machines are reprogrammable, flexible, and more advantageous in terms of speed, response and power consumption. 29 Digital Electronics System Design, 2014-1015 Fall VHDL Design Project Project #3 Vending Machine Azamat Kenesbekov Sanzhar Askaruly 1 fIntroduction It is interesting that the first vending machines appeared in the first century. Digital clock implemented in vhdl for the Basys 3 Board from Digilent. and will dispense the coke when >=15 Rs. INTRODUCTION Vending machine is an automatic machine which FPGA for this vending machine since FPGA based vending give quicker response and absorbed. Scribd is the world's largest social reading and publishing site. Catalog Datasheet MFG & Type PDF Document Tags; 2004 - verilog code for apb. Advantages & Disadvantages • Advantages – The vending machines are more accessible and practical than the convention purchasing method. Feeds Parts Directory Manufacturer Directory. This encapsulates the arrows on the state diagram. This project demonstrates. This is my code so far: LIBRARY ieee; USE ieee. fsm fpga processor vhdl mux vendingmachine comparator accumulator vending-machine vhdl-code full-adder 18. A finite-state machine (FSM) or simply a state machine is used to design both computer programs and sequential logic circuits. module mealyvend (N, D, clk, reset, open); // Mealy FSM for a vending machine. Coffee cost is 1 rs. md","path":"README. Clock and reset are necessary signals for finite state machine. – For example, when an output signal is. pdf), Text File (. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbersFactory Price French Fries Vending Machine Automatic Robot Hot Potato Fry Chip Vending Machine For Sale. Simulation of VHDL code for a vending machine. Feeds Parts. The paper explains how to use VHDL language to design a vending. [3] Ana Monga, Balwinder Singh, “Finite State Machine based Vending. Making use of two fundamental input techniques for FPGA. Follow. description language, VHDL, to implement and debug certain hardware components of the lab. This paper proposes a smart vending machine system combined with deep learning and machine learning technologies. 95. Question: I need to create a simple vending machine in VHDL code that gives an output of 1 (dispenses) when 15 cents or more is input and then after resets to empty. Search. (510) 668-0200 Fax. One of four red LEDs will light up according to. Top Results (6) Part ECAD Model. A customer will first deposit an initial amount of money and then select an item from the vending machine. The sequence to be detected is "1001". Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Project Name:- Vending Machine| VHDL Code | Simulation | FSM Based | B. You can do something like this for a testbench: ===== library ieee; use ieee. A coin sensor detects the type of coin inserted, and asserts the corresponding input to the. Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers. respectively. The repository contains the block diagram, the schematic, the behavioral and structural design, and the simulation results of the processor. Our VHDL-implemented coffee vending machine is a cost- effective and efficient solution that offers a customized experience for users. has four p roduct milk, water,. Presentation on vending machine controller using vhdl shubham goyal. performance is compared with CMOS based machine. List of items in the vending machine: drinks vending machine circuit datasheet, cross reference, circuit and application notes in pdf format. Vending Machine Vhdl [1d47v86p6j42]. Ramen Vending Machine Instant Noodle Vending Machine For Sale From IPLAY 24 hours self-service automatic vending machine. 2. Search. The VHDL code is written with the Quartus II Editor. It shows, if you are in state sig4, based on the input what the next state is. FSM’s are widely used in vending machines, traffic lights, security locks, and software algorithms. The vending machine model is written in VHDL (VHSIC Hardware Description Language), and be implemented and tested on a Xilinx Spartan 3 FPGA development board.