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| -rw-r--r-- | src/tb/tb_keywrap_mkmif.v | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/tb/tb_keywrap_mkmif.v b/src/tb/tb_keywrap_mkmif.v new file mode 100644 index 0000000..09fe652 --- /dev/null +++ b/src/tb/tb_keywrap_mkmif.v @@ -0,0 +1,153 @@ +//====================================================================== +// +// tb_keywrap_mkm.v +// ---------------- +// Testbench for the mkmif wrapper in keywrap. +// +// +// Author: Joachim Strombergson +// Copyright (c) 2018, NORDUnet A/S +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// - Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// - Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// - Neither the name of the NORDUnet nor the names of its contributors may +// be used to endorse or promote products derived from this software +// without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS +// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +//====================================================================== + +module tb_keywrap_mkm(); + + //---------------------------------------------------------------- + // Parameters. + //---------------------------------------------------------------- + parameter DEBUG = 1; + + parameter CLK_HALF_PERIOD = 1; + parameter CLK_PERIOD = 2 * CLK_HALF_PERIOD; + + + //---------------------------------------------------------------- + // Variables, regs and wires. + //---------------------------------------------------------------- + integer cycle_ctr; + integer error_ctr; + integer tc_ctr; + + reg tb_clk; + reg tb_reset_n; + + + //---------------------------------------------------------------- + // Device Under Test. + //---------------------------------------------------------------- + keywrap_mkmif dut( + .clk(tb_clk), + .reset_n(tb_reset_n), + + .mkm_spi_sclk(), + .mkm_spi_cs_n(), + .mkm_spi_do(), + .mkm_spi_di(), + + .init(), + .read(), + .write(), + .key_status(), + .ready(), + + .wr_status(), + .rd_status(), + .wr_key(), + .rd_key + ); + + + //---------------------------------------------------------------- + // clk_gen + // + // Always running clock generator process. + //---------------------------------------------------------------- + always + begin : clk_gen + #CLK_HALF_PERIOD; + tb_clk = !tb_clk; + end // clk_gen + + + //---------------------------------------------------------------- + // sys_monitor() + // + // An always running process that creates a cycle counter and + // conditionally displays information about the DUT. + //---------------------------------------------------------------- + always + begin : sys_monitor + cycle_ctr = cycle_ctr + 1; + + #(CLK_PERIOD); + end + + + //---------------------------------------------------------------- + // init_sim() + // + // Initialize all counters and testbed functionality as well + // as setting the DUT inputs to defined values. + //---------------------------------------------------------------- + task init_sim; + begin + cycle_ctr = 0; + error_ctr = 0; + tc_ctr = 0; + + tb_clk = 1'h0; + tb_reset_n = 1'h1 + + #(CLK_PERIOD); + end + endtask // init_sim + + + //---------------------------------------------------------------- + // main + //---------------------------------------------------------------- + initial + begin : main + $display(" -= Testbench for Keywrap mkmif wrapper started =-"); + $display(" ================================================"); + $display(""); + + init_sim(); + + $display(""); + $display("*** Keywrap mkmif wrapper testbench done. ***"); + $finish; + end // main + +endmodule // tb_keywrap_mkm + +//====================================================================== +// EOF tb_keywrap_mkm.v +//====================================================================== |