blob: a82184c4bd6f50a238e8a9dd24c4e204e1e753a5 [file] [log] [blame]
`default_nettype none
/*
* StriVe - A full example SoC using PicoRV32 in SkyWater s8
*
* Copyright (C) 2017 Clifford Wolf <clifford@clifford.at>
* Copyright (C) 2018 Tim Edwards <tim@efabless.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
`timescale 1 ns / 1 ps
`include "caravel.v"
`include "spiflash.v"
module mem_tb;
reg clock;
reg RSTB;
reg power1, power2;
wire gpio;
wire [15:0] checkbits;
wire [37:0] mprj_io;
wire flash_csb;
wire flash_clk;
wire flash_io0;
wire flash_io1;
assign checkbits = mprj_io[31:16];
// External clock is used by default. Make this artificially fast for the
// simulation. Normally this would be a slow clock and the digital PLL
// would be the fast clock.
always #10 clock <= (clock === 1'b0);
initial begin
clock = 0;
end
initial begin
$dumpfile("mem.vcd");
$dumpvars(0, mem_tb);
// Repeat cycles of 1000 clock edges as needed to complete testbench
repeat (100) begin
repeat (1000) @(posedge clock);
//$display("+1000 cycles");
end
$display("%c[1;31m",27);
`ifdef GL
$display ("Monitor: Timeout, Test MEM (GL) Failed");
`else
$display ("Monitor: Timeout, Test MEM (RTL) Failed");
`endif
$display("%c[0m",27);
$finish;
end
initial begin
RSTB <= 1'b0;
#1000;
RSTB <= 1'b1; // Release reset
#2000;
end
initial begin // Power-up sequence
power1 <= 1'b0;
power2 <= 1'b0;
#200;
power1 <= 1'b1;
#200;
power2 <= 1'b1;
end
always @(checkbits) begin
if(checkbits == 16'hA040) begin
$display("Mem Test (word rw) started");
end
else if(checkbits == 16'hAB40) begin
$display("%c[1;31m",27);
`ifdef GL
$display("Monitor: Test MEM (GL) [word rw] failed");
`else
$display("Monitor: Test MEM (RTL) [word rw] failed");
`endif
$display("%c[0m",27);
$finish;
end
else if(checkbits == 16'hAB41) begin
`ifdef GL
$display("Monitor: Test MEM (GL) [word rw] passed");
`else
$display("Monitor: Test MEM (RTL) [word rw] passed");
`endif
end
else if(checkbits == 16'hA020) begin
$display("Mem Test (short rw) started");
end
else if(checkbits == 16'hAB20) begin
$display("%c[1;31m",27);
`ifdef GL
$display("Monitor: Test MEM (GL) [short rw] failed");
`else
$display("Monitor: Test MEM (RTL) [short rw] failed");
`endif
$display("%c[0m",27);
$finish;
end
else if(checkbits == 16'hAB21) begin
`ifdef GL
$display("Monitor: Test MEM (GL) [short rw] passed");
`else
$display("Monitor: Test MEM (RTL) [short rw] passed");
`endif
end
else if(checkbits == 16'hA010) begin
$display("Mem Test (byte rw) started");
end
else if(checkbits == 16'hAB10) begin
$display("%c[1;31m",27);
`ifdef GL
$display("Monitor: Test MEM (GL) [byte rw] failed");
`else
$display("Monitor: Test MEM (RTL) [byte rw] failed");
`endif
$display("%c[0m",27);
$finish;
end
else if(checkbits == 16'hAB11) begin
`ifdef GL
$display("Monitor: Test MEM (GL) [byte rw] passed");
`else
$display("Monitor: Test MEM (RTL) [byte rw] passed");
`endif
$finish;
end
end
wire VDD3V3;
wire VDD1V8;
wire VSS;
assign VSS = 1'b0;
assign VDD3V3 = power1;
assign VDD1V8 = power2;
assign mprj_io[3] = 1'b1; // Force CSB high.
caravel uut (
.vddio (VDD3V3),
.vssio (VSS),
.vdda (VDD3V3),
.vssa (VSS),
.vccd (VDD1V8),
.vssd (VSS),
.vdda1 (VDD3V3),
.vdda2 (VDD3V3),
.vssa1 (VSS),
.vssa2 (VSS),
.vccd1 (VDD1V8),
.vccd2 (VDD1V8),
.vssd1 (VSS),
.vssd2 (VSS),
.clock (clock),
.gpio (gpio),
.mprj_io (mprj_io),
.flash_csb(flash_csb),
.flash_clk(flash_clk),
.flash_io0(flash_io0),
.flash_io1(flash_io1),
.resetb (RSTB)
);
spiflash #(
.FILENAME("mem.hex")
) spiflash (
.csb(flash_csb),
.clk(flash_clk),
.io0(flash_io0),
.io1(flash_io1),
.io2(), // not used
.io3() // not used
);
endmodule
`default_nettype wire