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Verbesserte TB 

#100000000 muss öfter aufgerufen werden, sonst zahl zu groß
tb ist noch nicht einmal komplett durchgelaufen
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Julian Uebler 1 year ago
parent
15b48049ab
commit
c7c804a5f9
1 changed files with 128 additions and 107 deletions
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  1. 128
    107
      Top/random_tl.sv

+ 128
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Top/random_tl.sv View File

@@ -1,107 +1,128 @@
// Project: ESY-Praktikum-Testbench
// File: random_tl.sv
// Title: Random Testbench Toplevel
// Description: Creates a Testbench that tests the Toplevel-Design with random based verifikation
//
//
// --------------------------------------------------------------------
//
//------------------------------------------------------------
// Notes:
//
//
//------------------------------------------------------------
// Development History:
//
// __DATE__ _BY_ _REV_ _DESCRIPTION___________________________
// 14/06/22 JU/TL 1.0 Initial testbench design
//
//------------------------------------------------------------
// Dependencies:
// Toplevel-Design
//
//
//------------------------------------------------------------
//------------------------------------------------------------
//
//
// Testbench
//
//------------------------------------------------------------
class Taster_rnd;
rand bit [1:0] data;
constraint Rst_rnd
{
data dist {0:=70,1 :=30};
}
endclass
class Data_ADC_rnd;
rand bit [7:0] data;
endclass
`timescale 1ns/1ps
module testbench_toplevel_rnd;
// inputs and outputs
reg taster;
reg [7:0]data_ADC;
reg clk12M;
wire RED;
wire GRN;
wire alarm;
wire SI;
wire SO;
wire SCK;
wire nCS;
//random
Taster_rnd taster_rnd = new();
Data_ADC_rnd data_ADC_rnd = new();
// connect module
SPI_FRAM_Module fram_storage(.SI(SI),.SO(SO),.SCK(SCK),.nCS(nCS).opcode().addr(),.mem_data(),.stat_reg,.hibernate());
initial
begin
clk12M=1'b0;
end
always
#41.666666 clk12M=~clk12M; //clock generation
//random test
initial begin
repeat (50) begin
#50000
Data_ADC_rnd.randomize();
Taster_rnd.randomize();
taster = taster_rnd.data;
data_ADC = data_ADC_rnd.data;
// assertions
// assert color green
assert property(@(posedge clk12M) disable iff (alarm) ((data_ADC < 100) |=> ##4 (!RED && GRN));
//assert color yellow
assert property(@(posedge clk12M) disable iff (alarm) ((data_ADC >= 100) && (data_ADC <= 168))|=> ##4 (RED && GRN));
//assert color red + alarm
assert property(@(posedge clk12M) (data_ADC > 168) |=> ##4 (RED && !GRN && alarm));
$monitor("time=%t, data_ADC=%d, RED=%d, GRN=%d, taster=%d",$time,data_ADC, RED, GRN, taster);
end
$stop;
end
endmodule
// Project: ESY-Praktikum-Testbench
// File: random_tl.sv
// Title: Random Testbench Toplevel
// Description: Creates a Testbench that tests the Toplevel-Design with random based verifikation
//
//
// --------------------------------------------------------------------
//
//------------------------------------------------------------
// Notes:
//
//
//------------------------------------------------------------
// Development History:
//
// __DATE__ _BY_ _REV_ _DESCRIPTION___________________________
// 14/06/22 JU/TL 1.0 Initial testbench design
//
//------------------------------------------------------------
// Dependencies:
// Toplevel-Design
//
//
//------------------------------------------------------------



//------------------------------------------------------------
//
//
// Testbench
//
//------------------------------------------------------------

class Taster_rnd;
rand bit [1:0] data;
constraint Rst_rnd
{
data dist {0:=70,1 :=30};
}
endclass

class Data_ADC_rnd;
rand bit [7:0] data;
endclass


`timescale 1ns/1ps
module tb;

// inputs and outputs
reg taster;
reg [7:0]data_ADC;
reg clk12M;
wire RED;
wire GRN;
wire alarm;
wire alarm_r;
wire SI;
wire SO;
wire SCK;
wire nCS;
reg endOfConvRnd;

//random
Taster_rnd taster_rnd = new();
Data_ADC_rnd data_ADC_rnd = new();

// connect module
SPI_FRAM_Module fram_storage(
.SI(SI),
.SO(SO),
.SCK(SCK),
.nCS(nCS),.opcode(),.addr());
Top top(.clk(clk12M),.rst(taster),.endOfConv(endOfConvRnd),.LEDg(GRN),.LEDr(RED),.AlarmAmpel(alarm),.Alarm_R(alarm_r));

initial
begin
clk12M=1'b0;
end
always
#41.666666 clk12M=~clk12M; //clock generation
//random test
initial begin
endOfConvRnd = 1;
repeat (2) begin
#100000000
#100000000
#100000000
#100000000
#100000000
#100000000
#100000000
#100000000
#100000000
#100000000
data_ADC_rnd.randomize();
taster_rnd.randomize();
taster = taster_rnd.data;
data_ADC = data_ADC_rnd.data;

// assertions

// assert color green
assert property(@(posedge clk12M) disable iff (alarm | alarm_r) ((data_ADC < 100) |=> ##4 (!RED && GRN)));
//assert color yellow
assert property(@(posedge clk12M) disable iff (alarm | alarm_r) (((data_ADC >= 100) && (data_ADC <= 168))|=> ##4 (RED && GRN)));
//assert color red + alarm
assert property(@(posedge clk12M) disable iff (alarm_r) (data_ADC > 168) |=> ##4 (RED && !GRN && alarm));
//assert alarm reset working
assert property(@(posedge clk12M) (alarm_r |=> ##4 (!RED && !GRN && !alarm)));
$monitor("time=%t, data_ADC=%d, RED=%d, GRN=%d, taster=%d",$time,data_ADC, RED, GRN, taster);
end
$stop;
end

endmodule


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