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Adding testbench to be used in fpga/sim

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aolofsson 2022-06-24 22:19:33 -04:00
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//#############################################################################
//# Function: Common testbench to run in Simulator of FPGA #
//#############################################################################
//# Author: Andreas Olofsson #
//# License: MIT (see LICENSE file in OH! repository) #
//#############################################################################
module testbench
#(parameter PW = 256, // packet width
parameter CW = 16, // control width
parameter N = 36, // ctrl/status width
parameter PERIOD_CLK = 10, // core clock period
parameter PERIOD_FASTCLK = 20, // fast clock period
parameter PERIOD_SLOWCLK = 20, // slow clock period
parameter TIMEOUT = 5000, // timeout value
parameter RANDOMIZE = 0, // 1=randomize period
parameter SIMULATE = 1, // 1=VERILOG SIM
parameter FILENAME = "NONE", // Simulus hexfile for $readmemh
parameter DEPTH = 8192, // Simulus memory depth
parameter TARGET = "DEFAULT" // physical synthesis/sim target
)
(
// control signals to drive
input nreset, // async active low reset
input clk, // core clock
input fastclk,
input slowclk,
input go, // start signal
input [N-1:0] ctrl, //generic ctrl vector
output [N-1:0] status, //generic status vector
output dut_error,
output dut_done,
// external write interface
input ext_clk,
input [PW-1:0] ext_packet,
input ext_ready,
input ext_valid
);
//#################################
// LOCAL WIRES, PARAMETERS
//#################################
wire [PW-1:0] tb_packet;
wire tb_ready;
wire tb_valid;
wire [N-1:0] tb_ctrl;
wire tb_nreset;
wire tb_clk;
wire tb_slowclk;
wire tb_fastclk;
wire tb_go;
/*AUTOINPUT*/
/*AUTOWIRE*/
// Beginning of automatic wires (for undeclared instantiated-module outputs)
wire dut_active; // From tb_dut of tb_dut.v
wire [PW-1:0] dut_packet; // From tb_dut of tb_dut.v
wire dut_ready; // From tb_dut of tb_dut.v
wire [N-1:0] dut_status; // From tb_dut of tb_dut.v
wire dut_valid; // From tb_dut of tb_dut.v
// End of automatics
//#################################
// CONTROL INTERFACE
//#################################
assign tb_ctrl[N-1:0] = ctrl[N-1:0];
generate
if (SIMULATE) begin
/*oh_simctrl AUTO_TEMPLATE (
.dut_\(.*\) (dut_\1[]),
.\(.*\) (tb_\1[]),
);
*/
oh_simctrl #(.PERIOD_CLK(PERIOD_CLK),
.PERIOD_SLOWCLK(PERIOD_SLOWCLK),
.PERIOD_FASTCLK(PERIOD_FASTCLK),
.TIMEOUT(TIMEOUT),
.RANDOMIZE(RANDOMIZE))
oh_simctrl(/*AUTOINST*/
// Outputs
.nreset (tb_nreset), // Templated
.clk (tb_clk), // Templated
.fastclk (tb_fastclk), // Templated
.slowclk (tb_slowclk), // Templated
.go (tb_go), // Templated
// Inputs
.dut_active (dut_active), // Templated
.dut_done (dut_done), // Templated
.dut_error (dut_error)); // Templated
end
else begin
assign tb_nreset = nreset;
assign tb_clk = clk;
assign tb_slowclk = slowclk;
assign tb_fastclk = fastclk;
assign tb_go = go;
end
endgenerate
//#################################
// DUT
//#################################
/*tb_dut AUTO_TEMPLATE (
.dut_\(.*\) (dut_\1[]),
.\(.*\) (tb_\1[]),
);
*/
tb_dut #(.PW(PW),
.N(N),
.TARGET(TARGET))
tb_dut(.valid (tb_valid),
.packet (tb_packet[PW-1:0]),
.ready (tb_ready),
/*AUTOINST*/
// Outputs
.dut_active (dut_active), // Templated
.dut_error (dut_error), // Templated
.dut_done (dut_done), // Templated
.dut_status (dut_status[N-1:0]), // Templated
.dut_valid (dut_valid), // Templated
.dut_packet (dut_packet[PW-1:0]), // Templated
.dut_ready (dut_ready), // Templated
// Inputs
.clk (tb_clk), // Templated
.fastclk (tb_fastclk), // Templated
.slowclk (tb_slowclk), // Templated
.nreset (tb_nreset), // Templated
.go (tb_go), // Templated
.ctrl (tb_ctrl[N-1:0])); // Templated
//#################################
// STIMULUS
//#################################
oh_stimulus #(.PW(PW),
.CW(CW),
.DEPTH(DEPTH),
.TARGET(TARGET),
.FILENAME(FILENAME))
oh_stimulus(.dut_clk (clk),
.stim_valid (tb_valid),
.stim_packet (tb_packet[PW-CW-1:0]),
.stim_done (tb_done),
/*AUTOINST*/
// Inputs
.nreset (nreset),
.go (go),
.ext_clk (ext_clk),
.ext_valid (ext_valid),
.ext_packet (ext_packet[PW-1:0]),
.dut_ready (dut_ready));
endmodule // testbench
// Local Variables:
// verilog-library-directories:("." "../rtl")
// End: