I am trying to do 64/66b encoder my enviroment running properly but in scoreboard $display is not display massage or values
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taufeeq khan
Jul 24, 2021, 12:55:02 AM7/24/21
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I am trying to do 64/66b encoder my enviroment is running test class also running but in scoreboard $display is not printing a massage and values
please give me any suggestion where iss i doing mistake
interface intf(input logic clk,rst);
logic [63:0] txd;
logic [7:0] txc;
logic [65:0] entxd;
endinterface
module adder(intf pif);
always @ (posedge pif.clk)
begin
if(pif.rst==0)
pif.entxd=66'b0;
else if(pif.txc==16'h00)
begin
pif.entxd={pif.txd[63:56],pif.txd[55:48],pif.txd[47:40],pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],pif.txd[7:0],2'b01};
end
else if(pif.txc==16'hff)
begin
pif.entxd={pif.txd[63:56],pif.txd[56:50],pif.txd[49:43],pif.txd[42:36],pif.txd[35:29],pif.txd[28:22],pif.txd[21:15],pif.txd[14:8],16'h1e ,2'b10};
end
else if(pif.txc==16'h01)
begin
pif.entxd={pif.txd[63:56],pif.txd[55:48],pif.txd[47:40],pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'h78,2'b10};
end
else if(pif.txc==16'hf1)
begin
pif.entxd={28'b0,pif.txd[36:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'h4b,2'b10};
end
else if(pif.txc==16'hff)
begin
pif.entxd={pif.txd[63:56],pif.txd[56:50],pif.txd[49:43],pif.txd[42:36],pif.txd[35:29],pif.txd[28:22],pif.txd[21:15],7'b0000000,16'h87,2'b10};
end
else if(pif.txc==16'hfe)
begin
pif.entxd={pif.txd[63:57],pif.txd[56:50],pif.txd[49:43],pif.txd[42:36],pif.txd[35:29],pif.txd[28:22],6'b000000,pif.txd[15:8],16'h99,2'b10};
end
else if(pif.txc==16'hfc)
begin
pif.entxd={pif.txd[63:57],pif.txd[56:50],pif.txd[49:43],pif.txd[42:36],pif.txd[35:29],5'b00000,pif.txd[23:16],pif.txd[15:8],16'haa,2'b10};
end
else if(pif.txc==16'hf8)
begin
pif.entxd={pif.txd[63:57],pif.txd[56:50],pif.txd[49:43],pif.txd[42:36],4'b0000,pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'hb4,2'b10};
end
else if(pif.txc==16'hf0)
begin
pif.entxd={pif.txd[63:57],pif.txd[56:50],pif.txd[49:43],3'b000,pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'hcc,2'b10};
end
else if(pif.txc==16'he0)
begin
pif.entxd={pif.txd[63:57],pif.txd[56:50],2'b00,pif.txd[47:40],pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'hd2,2'b10};
end
else if(pif.txc==16'hc0)
begin
pif.entxd={pif.txd[63:57],1'b0,pif.txd[55:48],pif.txd[47:40],pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'he1,2'b10};
end
else if(pif.txc==16'h80)
begin
pif.entxd={pif.txd[63:56],pif.txd[55:48],pif.txd[47:40],pif.txd[39:32],pif.txd[31:24],pif.txd[23:16],pif.txd[15:8],16'hd2,2'b10};
end
end
endmodule
`include "uvm_macros.svh"
import uvm_pkg::*;
class seq_item extends uvm_sequence_item;
`uvm_object_utils(seq_item)
rand bit [7:0]txc;
rand bit [63:0]txd;
bit [65:0] entxd;
bit clk;
bit rst;
function new(string name="seq_item");
super.new(name);
endfunction
endclass
class base_seq extends uvm_sequence#(seq_item);
seq_item tx;
`uvm_object_utils(base_seq)
function new(string name="base_seq");
super.new(name);
endfunction
task body();
repeat(2) begin
tx=seq_item::type_id::create("tx");
start_item(tx);
assert(tx.randomize);
tx.print();
finish_item(tx);
end
endtask
endclass
class sequencer extends uvm_sequencer#(seq_item);
`uvm_component_utils(sequencer)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
endclass
class driver extends uvm_driver#(seq_item);
seq_item tx;
virtual intf vif;
`uvm_component_utils(driver)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
void'(uvm_config_db #(virtual intf)::get(this,"","pif",vif));
endfunction
task run_phase(uvm_phase phase);
wait(vif.rst);
$display("----rst started-----");
vif.entxd = 0;
wait(!vif.rst);
$display("----rst ended-----");
forever begin
seq_item_port.get_next_item(tx);
vif.txc=tx.txc;
vif.txd=tx.txd;
@(negedge vif.clk);
seq_item_port.item_done();
end
endtask
endclass
class monitor extends uvm_monitor;
virtual intf vif;
seq_item tx;
uvm_analysis_port#(seq_item) port;
`uvm_component_utils(monitor)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
void'(uvm_config_db#(virtual intf)::get(this,"","pif",vif));
port=new("port",this);
tx=seq_item::type_id::create("tx");
endfunction
task run_phase(uvm_phase phase);
wait(vif.rst);
$display("----rst started-----");
vif.entxd = 0;
wait(!vif.rst);
$display("----rst ended-----");
forever begin
@(posedge vif.clk);
tx.txc=vif.txc;
tx.txd=vif.txd;
@(negedge vif.clk);
tx.entxd=vif.entxd;
port.write(tx);
end
endtask
endclass
class agent extends uvm_agent;
sequencer sqr;
driver dvr;
monitor mon;
`uvm_component_utils(agent)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
sqr=sequencer::type_id::create("sqr",this);
dvr=driver::type_id::create("dvr",this);
mon=monitor::type_id::create("mon",this);
endfunction
function void connect_phase(uvm_phase phase);
dvr.seq_item_port.connect(sqr.seq_item_export);
endfunction
endclass
class scoreboard extends uvm_scoreboard;
seq_item tx;
uvm_analysis_imp#(seq_item,scoreboard) imp;
bit [65:0]entxd;
`uvm_component_utils(scoreboard)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
imp=new("imp",this);
tx=seq_item::type_id::create("tx");
endfunction
function void write(seq_item tx1);
this.tx=tx1;
if(tx.rst==1)
begin
entxd=66'b0;
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'h00)
begin
entxd={tx.txd[63:56],tx.txd[55:48],tx.txd[47:40],tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],tx.txd[7:0],2'b01};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hff)
begin
entxd={tx.txd[63:56],tx.txd[56:50],tx.txd[49:43],tx.txd[42:36],tx.txd[35:29],tx.txd[28:22],tx.txd[21:15],tx.txd[14:8],16'h1e ,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'h01)
begin
entxd={tx.txd[63:56],tx.txd[55:48],tx.txd[47:40],tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'h78,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hf1)
begin
entxd={28'b0,tx.txd[36:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'h4b,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hff)
begin
entxd={tx.txd[63:56],tx.txd[56:50],tx.txd[49:43],tx.txd[42:36],tx.txd[35:29],tx.txd[28:22],tx.txd[21:15],7'b0000000,16'h87,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hfe)
begin
entxd={tx.txd[63:57],tx.txd[56:50],tx.txd[49:43],tx.txd[42:36],tx.txd[35:29],tx.txd[28:22],6'b000000,tx.txd[15:8],16'h99,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hfc)
begin
entxd={tx.txd[63:57],tx.txd[56:50],tx.txd[49:43],tx.txd[42:36],tx.txd[35:29],5'b00000,tx.txd[23:16],tx.txd[15:8],16'haa,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hf8)
begin
entxd={tx.txd[63:57],tx.txd[56:50],tx.txd[49:43],tx.txd[42:36],4'b0000,tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'hb4,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hf0)
begin
entxd={tx.txd[63:57],tx.txd[56:50],tx.txd[49:43],3'b000,tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'hcc,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'he0)
begin
entxd={tx.txd[63:57],tx.txd[56:50],2'b00,tx.txd[47:40],tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'hd2,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'hc0)
begin
entxd={tx.txd[63:57],1'b0,tx.txd[55:48],tx.txd[47:40],tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'he1,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
else if(tx.txc==16'h80)
begin
entxd={tx.txd[63:56],tx.txd[55:48],tx.txd[47:40],tx.txd[39:32],tx.txd[31:24],tx.txd[23:16],tx.txd[15:8],16'hd2,2'b10};
if(entxd==tx.entxd)
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
else
$display( "Result match","tx.entxd=%0d & entxd=%0d $time=%t",tx.entxd,entxd,$time);
end
endfunction
endclass
class env extends uvm_env;
agent agent1;
scoreboard sb;
`uvm_component_utils(env)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
agent1=agent::type_id::create("agent1",this);
sb=scoreboard::type_id::create("sb",this);
endfunction
function void connect_phase(uvm_phase phase);
agent1.mon.port.connect(sb.imp);
endfunction
endclass
class base_test extends uvm_test;
env env1;
base_seq seq;
`uvm_component_utils(base_test)
function new(string name,uvm_component parent);
super.new(name,parent);
endfunction
function void build_phase(uvm_phase phase);
env1=env::type_id::create("env1",this);
seq=base_seq::type_id::create("seq");
endfunction
task run_phase(uvm_phase phase);
phase.raise_objection(this);
// $display(top.dut.pif.a);
seq.start(env1.agent1.sqr);
phase.drop_objection(this);
endtask
endclass
//package v;
import uvm_pkg::*;
`include "uvm_macros.svh"
//endpackage:v
module top;
bit rst;
bit clk;
intf pif(clk,rst);
adder dut(pif);
initial begin
void'(uvm_config_db#(virtual intf)::set(uvm_root::get,"*","pif",pif));
//run_test("base_test");
run_test("base_test");
end
initial begin
clk=0;
rst=0;
#10;
rst=1;
forever #5 clk=~clk;
end
endmodule
output:-
Loading sv_std.std
# Loading mtiUvm.uvm_pkg
# Loading work.encoder64t066_sv_unit
# Loading work.top(fast)
# Loading work.intf(fast)
# Loading work.adder(fast)
# Loading C:\questasim_10.0b\uvm-1.0p1\win32\uvm_dpi.dll
# run -all
# ----------------------------------------------------------------
# UVM-1.0p1
# (C) 2007-2011 Mentor Graphics Corporation
# (C) 2007-2011 Cadence Design Systems, Inc.
# (C) 2006-2011 Synopsys, Inc.
# ----------------------------------------------------------------
# UVM_INFO @ 0: reporter [RNTST] Running test base_test...
# ----rst started-----
# ----rst started-----
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Aug 9, 2021, 8:47:06 AM8/9/21
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