cd ~/cadence/tutorials/incisive/ mkdir inverter cd inverter mkdir src cd src
Preparing the Verilog source code
Quindi creare i files inverter.v e inverter_test.v:
// inverter.v // Verilog code to describe a simple inverter `timescale 1ns/100ps // time unit and time precision module INV2(in, out); // module definition input in; // port definitions output out; // primitive statement not (out, in); //concurrent assignment //assign #2 out = ~in; endmodule
Poi il testbench
// inverter_test.v // testbench module for the inverter `timescale 1ns/100ps // time unit and time precision module inv_test; // module definition reg in; // input and output wire out; INV2 U1(in, out); // inverter instantiation initial begin in = 1'b0; // input values #25 in = 1'b1; #75 in = 1'b0; #35 in = 1'b1; #100 $finish; // end simulation end endmodule
Start NCLaunch
nclaunch [-new] [-single] [-work]
Infine lanciare NCLaunch:
nclaunch -new &
Poi si apre NCLaunch con i files gia' caricati:
Utilizzare VIM text editor!
Example:
inv.v e inv_test.v files can be found here and here
In single-step richiama irun
/usr/cadence/Incisive_10.20/tools/bin/irun
NCLaunch ⇒ File ⇒ Switch to Single Step/Switch to Multiple Step
Documentazione accessibile anche da
NCLaunch ⇒ Help ⇒ NCLaunch User Guide
e soprattutto i video-tutorials!
NCLaunch ⇒ Help ⇒ Tutorials
Uscire e chiudere:
NCLaunch ⇒ File ⇒ Exit
Design directory and work library:
NCLaunch ⇒ File ⇒ Set Design Directory
Compiling the source files
Compilazione:
NCLaunch ⇒ Tools ⇒ VHDL Compiler/Verilog Compiler
Notare che e' solo una via grafica per settare opzioni della riga di comando di ncvhdl:
ncvhdl [options] fileName.vhd (.vhdl)
ncvhdl -help > ~/cadence/doc/ncvhdl.help
Stessa pasta per ncvlog:
ncvlog [options] fileName.v
ncvlog -help > ~/cadence/doc/ncvlog.help
Elaboration
Selezionare worklib ⇒ inv_test e poi NCLaunch ⇒ Tools ⇒ Elaborator
Anche qui maschera cosa succede poi alla riga di comando:
ncelab [options] fileName
ncelab -help > ~/cadence/doc/ncelab.help
Simulate the design
NCLaunch ⇒ Tools ⇒ Simulator
che setta le opzioni di ncsim:
ncsim [options] fileName
ncsim -help > ~/cadence/doc/ncsim.help