What is finite state machine in verilog?

Finite State Machines (FSM) are sequential circuit used in many digital systems to control the behavior of systems and dataflow paths. Examples of FSM include control units and sequencers. This lab introduces the concept of two types of FSMs, Mealy and Moore, and the modeling styles to develop such machines.

How do you code a state machine in verilog?

How to Code a State Machine in Verilog

1. Stepper motor controller state diagram.
2. This block of code creates the state variables.
3. This block of code creates the state registers that hold the next_state and present_state variables.
4. This is the first chunk of the state logic.
5. This is the second chunk of the next state logic.

How do you write a finite state machine in verilog?

Basically a FSM consists of combinational, sequential and output logic. Combinational logic is used to decide the next state of the FSM, sequential logic is used to store the current state of the FSM. The output logic is a mixture of both combo and seq logic as shown in the figure below.

What is a state machine verilog?

A state machine is a sequential circuit that advances through a number of states. By default, the Quartus II software automatically infers state machines in your Verilog HDL code by finding variables whose functionality can be replaced by a state machine without changing the simulated behavior of your design.

Which is an example of a Verilog state machine?

This is a Verilog example that shows the implementation of a state machine. The first CASE statement defines the outputs that are dependent on the value of the state machine variable state. The second CASE statement defines the transitions of state machine and the conditions that control them.

How are parameters defined in Verilog program 1.2?

Parameters are symbolic constants with either global (given by the Verilog keywordparameter) or module (localparam) scope. Because we only want our state encoding to be visible to the module in which we will write the FSM, we will use the latter:localparam. With this in mind, we can specify Program 1. 2 Program 1 The state encoding (in decimal)

What is the function of the FSM in Verilog?

FSM, written in Verilog, perform state minimization automatically. Only perform state minimization manually to the extent that the function of the FSM remains clear.

How to create a state encoding in Verilog?

We will create our state encoding with Verilog parameters. Parameters are symbolic constants with either global (given by the Verilog keywordparameter) or module (localparam) scope. Because we only want our state encoding to be visible to the module in which we will write the FSM, we will use the latter:localparam.