barbarbar338

-- barbarbar338
library ieee;
use ieee.std_logic_1164.all;

entity jk_flip_flop is
    port (
        clk : in std_logic;
        j   : in std_logic;
        k   : in std_logic;
        q   : out std_logic;

barbarbar338

## https://github.com/Digilent/digilent-xdc/blob/master/Basys-3-Master.xdc

## Clock signal
set_property -dict { PACKAGE_PIN W5   IOSTANDARD LVCMOS33 } [get_ports clk_in]
create_clock -add -name sys_clk_pin -period 10.00 -waveform {0 5} [get_ports clk_in]

## LEDs
set_property -dict { PACKAGE_PIN U16   IOSTANDARD LVCMOS33 } [get_ports {count[0]}]
set_property -dict { PACKAGE_PIN E19   IOSTANDARD LVCMOS33 } [get_ports {count[1]}]
set_property -dict { PACKAGE_PIN U19   IOSTANDARD LVCMOS33 } [get_ports {count[2]}]

barbarbar338

-- barbarbar338
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity main_counter is
    Port (
        clk_in  : in  std_logic;  -- Basys3 100MHz clock
        reset   : in  std_logic;
        clk_out : out std_logic;
        count   : out std_logic_vector(2 downto 0)  -- 3-bit counter

barbarbar338

-- barbarbar338
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity dff is
    Port (
        clk   : in  std_logic;
        reset : in  std_logic;
        d     : in  std_logic;
        q     : out std_logic

barbarbar338

-- barbarbar338
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;

entity freq_divider is
    Port (
        clk_in  : in  std_logic;  -- 100MHz clock input
        reset   : in  std_logic;
        clk_out : out std_logic   -- 2Hz clock output

barbarbar338

#include <iostream>
#include <cmath>

using namespace std;

const double pi = acos(0) * 2;

class Pendulum {
private:
	double length;

barbarbar338

#include <iostream>
#include <vector>
#include <fstream>
#include <sstream>
#include <map>
#include <algorithm>

using namespace std;

// Using pointers to pass the vector by reference

barbarbar338

#include <iostream>

/*
    used vectors instead of arrays.
    It's easier to work with vectors
    because of their dynamic size.
    ~ barbarbar338
*/
#include <vector>

barbarbar338

/*
You might need to change the plotter
history size to see everything cleaner.

Here is a good tutorial for this: 
https://youtu.be/qrfpPuw2W3A
*/

const int analogPin = A0; // Clock output pin
const int threshold = 512; // Midpoint (~2.5V for a 5V signal)

barbarbar338

Compile LaTeX files on Android

• Install Termux from F-Droid. This part is important, not from Google Play Store. GPlay restricts some functionality of Termux.
• Upgrade dependencies: pkg update && pkg upgrade
• To access device storage, run this command. It's needed to access created LaTeX and PDF files: termux-setup-storage
• cd into local storage: cd ~/storage/shared
• Create LaTeX project folder. We'll save our files here and access them from this folder from our device: mkdir LaTeX
• Install TeX Live installer: pkg install texlive-installer
• Install TeX Live. Important note, do not change any option here: termux-install-tl
• Create bash config file with these configurations: nvim ~/.bashrc