verilog-apple-one/iverilog/apple1_top_tb.v
2018-01-26 23:32:31 +01:00

65 lines
1.8 KiB
Verilog

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
//
// Description: Top level test bench for apple1_top
//
// Author.....: Niels A. Moseley
// Date.......: 26-1-2018
//
`timescale 1ns/1ps
module apple1_top_tb;
reg clk25, uart_rx;
wire uart_tx, uart_cts;
//////////////////////////////////////////////////////////////////////////
// Setup dumping of data for inspection
initial begin
clk25 = 1'b0;
uart_rx = 1'b0;
$display("Starting...");
$dumpfile("apple1_top_tb.vcd");
$dumpvars;
#1000000 $display("Stopping...");
$finish;
end
//////////////////////////////////////////////////////////////////////////
// Clock
always
#20 clk25 = !clk25;
always
begin
#10000 $finish;
end
//////////////////////////////////////////////////////////////////////////
// Core of system
top core_top(
.clk25(clk25),
.uart_rx(uart_rx),
.uart_tx(uart_tx),
.uart_cts(uart_cts)
);
endmodule