Can you mix Verilog and VHDL?

Can you mix Verilog and VHDL?

Introduction. Since, both VHDL and Verilog are widely used in FPGA designs, therefore it be beneficial to combine both the designs together; rather than transforming the Verilog code to VHDL and vice versa.

How do you assign a value to a wire in Verilog?

Wire is used as combinational logic. You can assign it, e.g. assign a = 1’b1. In this case, the one which holds the value is 1’b1. Reg can be used as either combinational or sequential logic.

What is process statement in VHDL?

Process Statements include a set of sequential statements that assign values to signals. These statements allow you to perform step-by-step computations. Process Statements that describe purely combinational behavior can also be used to create combinational logic.

How do you declare variables in VHDL?

Variables are local to a process. They are used to store the intermediate values and cannot be accessed outside of the process. The assignment to a variable uses the “:=” notation, whereas, the signal assignment uses “<=”.

How do I instantiate a Verilog module in VHDL?

To instantiate a Verilog module inside a VHDL entity, you must first declare a component that models the interface of the Verilog HDL module. The component should have the same port names and port ranges as the Verilog HDL module declaration. If the port names do not match, the Quartus II software issues an error.

How do I declare a component in VHDL?

Component Declaration

1. A component declaration declares a virtual design entity interface that may be used in component instantiation statement.
2. component component_name [ is ]
3. generic (generic_list);
4. port (port_list);
5. end component component_name;
6. A component represents an entity/architecture pair.

How do I assign a value to register in Verilog?

Verilog assign statement

1. Assign Syntax. The assignment syntax starts with the keyword assign followed by the signal name which can be either a single signal or a concatenation of different signal nets.
2. Assign reg variables.
3. Implicit Continuous Assignment.
4. Combinational Logic Design.

What is Reg in VHDL?

Nets were intended as connections between hardware elements, and had values driven onto them; they didn’t hold those values. Nets are normally declared as wire . Registers were data storage elements, and did hold a value; they are normally declared as reg .