GaryLee

// Problem: https://hdlbits.01xz.net/wiki/Fsm_serialdp.
module top_module(
    input clk,
    input in,
    input reset,    // Synchronous reset
    output [7:0] out_byte,
    output done
); //
	parameter START = 4'd0, BIT0 = 4'd1, BIT1 = 4'd2, BIT2 = 4'd3, BIT3 = 4'd4, 
    		  BIT4 = 4'd5, BIT5 = 4'd6, BIT6 = 4'd7, BIT7 = 4'd8, PARITY = 4'd9,

GaryLee

// Problem: https://hdlbits.01xz.net/wiki/Fsm_serialdata
module top_module(
    input clk,
    input in,
    input reset,    // Synchronous reset
    output [7:0] out_byte,
    output done
); //
	parameter START = 4'd0, BIT0 = 4'd1, BIT1 = 4'd2, BIT2 = 4'd3, BIT3 = 4'd4, 
    		  BIT4 = 4'd5, BIT5 = 4'd6, BIT6 = 4'd7, BIT7 = 4'd8,  STOP = 4'd9,

GaryLee

module counter #(parameter BGN, parameter END, parameter LOAD=0) (
    input clk,
    input reset,
    input ena,
    output c,
    output [7:0] d
	);
    logic c0, c1;
    assign c0 = (d[3:0] == 4'd9);
	assign c = ena & (d == 8'(END)); // AND `ena` here to make sure `c` is set when previous digit is counting.

GaryLee

module top_module (
    input [7:0] a,
    input [7:0] b,
    output [7:0] s,
    output overflow
);
    logic c;
    assign {c, s} = a + b;
    assign overflow = ~(a[7] ^ b[7]) & (c ^ s[7]);
endmodule

GaryLee

#!python
# coding: utf-8

import os
import string
import pandas as pd
pd.set_option('future.no_silent_downcasting', True)

class Excel:
    ENGINE = 'xlrd'  # Specify the engine for reading .xls files

GaryLee

REM To enable ICS for interface. Set the ICS from following GUI:
REM Settings -> Network & Internet -> Open Network & Internet settings -> Change adapter options
REM -> Properties -> Sharing
REM -> Allow other network users to connect through this computer’s Internet connection.

REM After setting above option correctly, run following commands in the terminal with Administrator Privilege.
sc config SharedAccess start=auto
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\SharedAccess /v EnableRebootPersistConnection /t REG_DWORD /d 1

GaryLee

/**
 * @file circular_buffer.h The circular buffer.
 */

#ifndef CIRCULAR_BUFFER_H
#define CIRCULAR_BUFFER_H

/**
 * @brief The circular buffer class.
 */

GaryLee

#!python

from math import pi

# The first-order low-pass filter has following transfer function of s-domain
# H(s) = a / (s + a).
# Its pole is s = −a, and the pole in digital filter will be z = e^−aT
# Therefore the H(z) is (1 - e^-aT)*z / ( z - e^-aT )
FREQ_SAMPLING = 50e3
TIME_SAMPLING = 1 / FREQ_SAMPLING

GaryLee

#!python
# coding: utf-8

import numpy as np
import matplotlib.pyplot as plt

dt = 0.1 # The time interval of sampling.

# Make input data with some white noise.
z = np.arange(1, 100, dt)

GaryLee

#!python
# -*- coding: utf-8 -*-

import drawsvg as draw


# Reference: https://github.com/cduck/drawsvg/blob/master/docs/index.md

reg = {
    '31': 'EN',