// SPDX-FileCopyrightText: 2020 Efabless Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// SPDX-License-Identifier: Apache-2.0

`default_nettype none

`timescale 1 ns / 1 ps

`include "uprj_netlists.v" // this file gets created automatically by multi_project_tools from the source section of info.yaml
`include "caravel_netlists.v"
`include "spiflash.v"

module accel_tb;
    initial begin
        $dumpfile ("accel.vcd");
        $dumpvars (0, accel_tb);
        #1;
    end

  reg clk;
  reg RSTB;
  reg power1, power2;
  reg power3, power4;

  wire gpio;
  wire [37:0] mprj_io;

  wire ser_tx,ser_rx;

  assign ser_tx = mprj_io[15];
  assign mprj_io[16] = ser_rx;
  /////

  wire flash_csb;
  wire flash_clk;
  wire flash_io0;
  wire flash_io1;

  wire VDD3V3 = power1;
  wire VDD1V8 = power2;
  wire USER_VDD3V3 = power3;
  wire USER_VDD1V8 = power4;
  wire VSS = 1'b0;


  caravel uut (
    .vddio    (VDD3V3),
    .vssio    (VSS),
    .vdda    (VDD3V3),
    .vssa    (VSS),
    .vccd    (VDD1V8),
    .vssd    (VSS),
    .vdda1    (USER_VDD3V3),
    .vdda2    (USER_VDD3V3),
    .vssa1    (VSS),
    .vssa2    (VSS),
    .vccd1    (USER_VDD1V8),
    .vccd2    (USER_VDD1V8),
    .vssd1    (VSS),
    .vssd2    (VSS),
    .clock    (clk),
    .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("accel.hex")
  ) spiflash (
    .csb(flash_csb),
    .clk(flash_clk),
    .io0(flash_io0),
    .io1(flash_io1),
    .io2(),      // not used
    .io3()      // not used
  );

endmodule
`default_nettype wire