update timescale (#238)

update timescale

- Removed system_project level option to change simulation timescale
- Updated logger to print ps time as fraction to ns for more accurate logging
- Added logger time format option
- Added a global timescale directive to avoid any warnings
- Added timeunit and timeprecision to each test program
- Removed time scale and precision related commands
- Updated test programs to support new time scaling

Signed-off-by: Istvan-Zsolt Szekely <istvan.szekely@analog.com>

Author: IstvanZsSzekely

library/drivers/common/watchdog.sv

@@ -88,7 +88,7 @@ package watchdog_pkg;
             @this.stop_event;
           join_any
           disable fork;
-          this.info($sformatf("Watchdog timer reset. %s", this.message), ADI_VERBOSITY_MEDIUM);
+          this.info($sformatf("Watchdog timer reset."), ADI_VERBOSITY_MEDIUM);
         end
       join_none
     endtask: start

library/utilities/logger_pkg.sv

@@ -51,7 +51,7 @@ package logger_pkg;
     input adi_verbosity_t msgVerborisity);
 
     if (verbosity >= msgVerborisity) begin
-      $display("[INFO] @ %0t: %s", $time, inStr);
+      $display("[INFO] @ %0t: %s", $realtime, inStr);
     end
   endfunction: PrintInfo
 
@@ -69,6 +69,22 @@ package logger_pkg;
 
   function void setLoggerVerbosity(input adi_verbosity_t value);
     verbosity = value;
+    setLoggerTimeFormat("ns", 3);
   endfunction: setLoggerVerbosity
 
+  function void setLoggerTimeFormat(
+    input string format,
+    input int fraction);
+
+    case (format)
+      "s": $timeformat(0, fraction, " s");
+      "ms": $timeformat(-3, fraction, " ms");
+      "us": $timeformat(-6, fraction, " us");
+      "ns": $timeformat(-9, fraction, " ns");
+      "ps": $timeformat(-12, fraction, " ps");
+      "fs": $timeformat(-15, fraction, " fs");
+      default: `ERROR(("Unsupported format!"));
+    endcase
+  endfunction: setLoggerTimeFormat
+
 endpackage

library/utilities/test_harness_env.sv

@@ -123,9 +123,9 @@ package test_harness_env_pkg;
     task sys_reset();
       //asserts all the resets for 100 ns
       this.sys_rst_vip_if.assert_reset();
-      #200;
+      #200ns;
       this.sys_rst_vip_if.deassert_reset();
-      #800;
+      #800ns;
     endtask
 
   endclass

library/vip/amd/axi/axi_definitions.svh

@@ -33,8 +33,6 @@
 // ***************************************************************************
 // ***************************************************************************
 
-`timescale 1ns/1ps
-
 `ifndef _AXI_DEFINITIONS_SVH_
 `define _AXI_DEFINITIONS_SVH_
 

library/vip/amd/axis/axis_definitions.svh

@@ -33,8 +33,6 @@
 // ***************************************************************************
 // ***************************************************************************
 
-`timescale 1ns/1ps
-
 `ifndef _AXIS_DEFINITIONS_SVH_
 `define _AXIS_DEFINITIONS_SVH_
 

testbenches/ip/axi_tdd/system_tb.sv

@@ -33,7 +33,6 @@
 // ***************************************************************************
 // ***************************************************************************
 
-`timescale 1ns/1ps
 
 `include "utils.svh"
 

testbenches/ip/axi_tdd/tests/test_program.sv

@@ -45,6 +45,9 @@ import `PKGIFY(test_harness, ddr_axi_vip)::*;
 
 program test_program;
 
+  timeunit 1ns;
+  timeprecision 1ps;
+
   //instantiate the environment
   test_harness_env #(`AXI_VIP_PARAMS(test_harness, mng_axi_vip), `AXI_VIP_PARAMS(test_harness, ddr_axi_vip)) base_env;
 

testbenches/ip/axis_sequencers/system_tb.sv

@@ -33,8 +33,6 @@
 // ***************************************************************************
 // ***************************************************************************
 
-`timescale 1ns/1ps
-
 `include "utils.svh"
 
 module system_tb();

testbenches/ip/axis_sequencers/tests/test_program.sv

@@ -51,6 +51,9 @@ import `PKGIFY(test_harness, dst_axis)::*;
 
 program test_program;
 
+  timeunit 1ns;
+  timeprecision 1ps;
+
   // declare the class instances
   test_harness_env #(`AXI_VIP_PARAMS(test_harness, mng_axi_vip), `AXI_VIP_PARAMS(test_harness, ddr_axi_vip)) base_env;
   axis_sequencer_environment #(`AXIS_VIP_PARAMS(test_harness, src_axis), `AXIS_VIP_PARAMS(test_harness, dst_axis)) axis_seq_env;

testbenches/ip/base/system_tb.sv

@@ -33,8 +33,6 @@
 // ***************************************************************************
 // ***************************************************************************
 
-`timescale 1ns/1ps
-
 `include "utils.svh"
 
 module system_tb();