

This takes your code and generates a circuit that implements the desired functionality.

Processing→Start→Analysis and Synthesis (or type ctrl-k). Your window should look a bit like the one below. To do this make sure that the "hadd.v" file is in the editing window and then go to Project→Set as Top Level Entity.

and add hadd.v and remove some extraneous files that we don't need (everything but DE0_CV_Default.sdc - if the. Go to Project→Add/Remove Files in Project. Output cout, s // Output, carry (cout) and sum (s) Input a, b // Inputs to be added together Module hadd(a,b,cout,s) // Implement a half-adder The "top level entity" is denoted by a pink box. We will write Verilog code for each module, and then connect modules together to form more complex functions. It is useful to think of the half adder module as a black box as shown at the left with inputs (A,B) at the top, and output (S, cout) at the bottom. Don't worry if you don't understnad the syntax completely, you'll learn that soon. It implements a half adder it adds the bits labelled A and B into a sum (S) and carry out (cout). Create a file and call it "hadd.v" (module name is the same as file name).From the Quartus main menu choose " File→New→Design.Without doing a full compilationas we did in class (that process is much Also, if you only want to simulate, you can use ModelSim You will be simulating if you don't expect to simulate, you don't need toĭo this. (Note: this is only necessary for projects that The "Tool name" and "Verilog HDL" for format.

