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| Files in ones_counter.tar assertion.sv Current file: driver.sv env.sv filelist interface.sv monitor.sv rtl.sv scoreboard.sv stimulus.sv test_1.sv test_2.sv top.sv |
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////s SystemVerilog Tutorial s////
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////s gopi@testbench.in s////
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class driver;
stimulus sti;
scoreboard sb;
covergroup cov;
Feature_1: coverpoint sb.store ;
Feature_2 : coverpoint sb.store { bins trans = ( 15 => 0) ;}
endgroup
virtual intf_cnt intf;
function new(virtual intf_cnt intf,scoreboard sb);
this.intf = intf;
this.sb = sb;
cov = new();
endfunction
task reset(); // Reset method
intf.data = 0;
@ (negedge intf.clk);
intf.reset = 1;
@ (negedge intf.clk);
intf.reset = 0;
@ (negedge intf.clk);
intf.reset = 1;
endtask
task drive(input integer iteration);
repeat(iteration)
begin
sti = new();
@ (negedge intf.clk);
if(sti.randomize()) // Generate stimulus
intf.data = sti.value; // Drive to DUT
sb.store = sb.store + sti.value;// Cal exp value and store in Scoreboard
if(sti.value)
cov.sample();
end
endtask
endclass