buttercutter

module detect_start_bit(clk, serial_in, start_detected); // just a falling edge detector

input clk, serial_in;
output reg start_detected = 0; 

reg previously_idle = 1;

always @(posedge clk)
begin
    if((!serial_in) && (previously_idle) && (!start_detected))

buttercutter

`timescale 1ps/100fs

module baud_generator_tb;
  reg clk;
  wire baud_out;

	baud_generator BG1
	(
      .clk(clk),
      .baud_out(baud_out)

buttercutter

#include <pthread.h>
#include <semaphore.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

buttercutter

module xillydemo
  (
  input  clk_100,
  input  otg_oc,   
  inout [55:0] PS_GPIO,
  output [3:0] GPIO_LED,
  output [3:0] vga4_blue,
  output [3:0] vga4_green,
  output [3:0] vga4_red,
  output  vga_hsync,

buttercutter

###############################################################################
 #  Copyright (c) 2016, Xilinx, Inc.
 #  All rights reserved.
 #
 #  Redistribution and use in source and binary forms, with or without
 #  modification, are permitted provided that the following conditions are met:
 #
 #  1.  Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.

buttercutter

#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdint.h>

buttercutter

// ----------------------------------------------------------------------
// Copyright (c) 2016, The Regents of the University of California 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.

buttercutter

`timescale 1ns/1ns
//----------------------------------------------------------------------------
// This software is Copyright © 2012 The Regents of the University of 
// California. All Rights Reserved.
//
// Permission to copy, modify, and distribute this software and its 
// documentation for educational, research and non-profit purposes, without 
// fee, and without a written agreement is hereby granted, provided that the 
// above copyright notice, this paragraph and the following three paragraphs 
// appear in all copies.

buttercutter

 * gnetlist -g spice-noqsi -o test_active_inductor.net test_active_inductor.sch
 AC Analysis  Mon Feb 12 23:17:37  2018
--------------------------------------------------------------------------------
Index   frequency       s11                             
--------------------------------------------------------------------------------
0	1.000000e+02	9.997594e-01,	1.132451e-13	
1	1.001001e+02	9.997594e-01,	1.133585e-13	
2	1.002002e+02	9.997594e-01,	1.134718e-13	
3	1.003003e+02	9.997594e-01,	1.135852e-13	
4	1.004004e+02	9.997594e-01,	1.136985e-13	

buttercutter

`default_nettype none

// for connecting Tx and Rx together
`define LOOPBACK 1

module test_UART(reset_tx, reset_rx, serial_out, enable, i_data, o_busy, received_data, data_is_valid, rx_error,
`ifndef FORMAL
clk
`endif);