Documentation for “Zerocat Dev Kit”
Generated on: Sat, 12 Oct 2024 14:57:06 +0200
Repository: git://zerocat.org/zerocat/projects/zerocat-dev-kit.git
Version: 6ccb2df22
Branch: master

Zerocat Dev Kit

Put the fun back into hardware development!

../hardware/system/pcb/display10x64.pcb.top.photo.png

Prototype, yet untested: Display 10x64 PCB, top view

Copyright (C) 2021, 2022, 2023, 2024 Kai Mertens kmx@posteo.net

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

Section #../doc/README.md

README

Project Goal

Zerocat Dev Kit provides PCBs, casings and toolsets to ease device development based on the Parallax P8X32A free-design microcontroller.

Prerequisites

It is assumed that you are running a GNU/Linux-libre operating system with Git and GNU Make installed. We recommend to run GNU Guix System – alternatively, install the GNU Guix package manager.

Get the Sources

Use Git to clone the project’s sources:

    $ git clone git://zerocat.org/zerocat/projects/zerocat-dev-kit.git

Change into the project’s documentation folder:

    $ cd zerocat-dev-kit/doc/

Study this README.md to get started:

    $ cat ../doc/README.md

Paths

All paths within the documentation are relative to the location of the documentation source files, which are located in this project’s doc/ folder.

Tags

Versions are tagged according to the following pattern:

    v<major>.<minor>.<revision>

A tag should be annotated with related change log entries.

The first tag should be: v0.0.0

To checkout a version tag, run:

    git checkout vx.x.x

However, this should be optional.
Using the tip of branch master should be just fine.

Project’s Guix Profiles

Use GNU Make to create dedicated profiles, and up-to-date profile generations. This allows to match environments across machines, thus yielding for bit-identical project results:

    $ make -C ../hardware/guix pull
    $ make -C ../guix pull

To list all available targets, type:

    $ make -C ../hardware/guix help
    $ make -C ../guix help

To remove this project’s handy guix profiles, type:

    $ make -C ../hardware/guix clean
    $ make -C ../guix clean

This will remove symlinks only. If you want to remove the profiles from your system, run the GNU Guix Garbage Collector.

Make all in One Go

To compile all files in one go from system’s shell, type:

    $ make -C ../guix go

To clean up, type:

    $ make -C ../guix clean-go

Make Hardware Design Files

To generate hardware design files for the documentation, based on a simple P8X32A microcontroller system, type:

    $ make -C ../hardware/guix environment
    [env]$ make -C ../../hardware

To remove them, type:

    [env]$ make -C ../../hardware clean

To leave the environment, type:

    [env]$ exit

Project Environment Setup

Checkout the profile generation, instantiate channels, create a pure shell that provides nothing but prerequisites:

    $ make -C ../guix environment

To confirm that your project environment is properly set up, run:

    [env]$ make -C ../guix usage

Invocations of make to generate the documentation, compile the sources, etc., should be done from this project environment, only.

To restore the initial environment, later on, when you are done with this project, type:

    [env]$ exit

Make Documentation

To build the documentation, type:

    [env]$ make -C ../doc

To clean up, type:

    [env]$ make -C ../doc clean

Get Resources

To get chip resources, documentations and datasheets, type:

    [env]$ make -C ../doc resources

Use ... [env]$ make -C ../doc clean-resources

... for clean-up.

Section #../doc/CONTRIBUTING.md

Contributing

Documentation Files

Documentation source files are written in markdown syntax. They should carry their individual copyright and license notices right below the title giving headline, e.g.:

    <Title-of-Document>
    ===================

    Copyright (C) <Year>  <Name-of-Author> <Email-Address>  

    Permission is granted to copy, distribute and/or modify this document
    under the terms of the GNU Free Documentation License, Version 1.3
    or any later version published by the Free Software Foundation;
    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
    Texts. A copy of the license is included in the section entitled
    "GNU Free Documentation License".

    <Other-Headline>
    ----------------

    ...content...

The generated documentation carries a license notice right at top on its title page, with copyright statements generated from git log output.

Sections of the generated documentation are build from selected markdown source files, with their individual copyright and license notice stripped.

In order to enrich the generated documentation ...

... and adapt ../doc/Makefile to produce nice output.

In case more tools are needed, don't forget to update ../guix/manifest.scm.

Images

To make your image look nice within the documentation, select a landscape layout of 16:9 aspect ratio.

Use ImageMagick to prepare your image, e.g.:

If your image is big, reduce it to a maximal width of 2000 pixel:

    mogrify -resize 2000x <image>

Please clean image files from metadata, before committing, i.e.:

    mogrify -strip <image>

If you embed your image into a markdown documentation file, use this syntax:

   ![<path/to/image>][]

   [<path/to/image>]:     <path/to/image>     "title message"

or alternatly:

   ![<path/to/image>][my-image-shortcut]

   [my-image-shortcut]:   <path/to/image>     "title message"

These patterns will guarantee that <img> tags will have their src, alt and title attributes properly set within the html output.

Code Files

Please use this license header for code source files:

    Zerocat Dev Kit --- Put the fun back into hardware development!

    Copyright (C) <Year>  <Name-of-Author> <Email-Address>

    This file is part of Zerocat Dev Kit.

    Zerocat Dev Kit is free software: you can redistribute it
    and/or modify it under the terms of the GNU General Public
    License as published by the Free Software Foundation, either
    version 3 of the License, or (at your option) any later
    version.

    Zerocat Dev Kit is distributed in the hope that it will be
    useful, but WITHOUT ANY WARRANTY; without even the implied
    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    PURPOSE. See the GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Zerocat Dev Kit.
    If not, see <http://www.gnu.org/licenses/>.

Shell Scripts

If you intend to write shell scripts, use this skeleton to make them work for GNU Guix:

    #!/bin/sh

    # Re-exec if we are not using Bash or are using Bash in POSIX mode.
    if [ -z "$BASH" ] || [ "$BASH" = "/bin/sh" ]; then
      bash=`command -v bash`
      if [ -z "$bash" ]; then
        echo "Couldn't find Bash, sorry!"
        exit 1
      else
        exec "$bash" "$0" "$@"
      fi
    fi

    # We're using Bash now.
    set -o errexit
    set -o nounset
    set -o pipefail

    # Your code goes here ...

ChangeLog

Update ../doc/CHANGES.md and list your contributions.

You can use git shortlog to get a starting point for your edit.

Section #../doc/COPYING.md

Copying

Zerocat Dev Kit ships copyrighted work.

Zerocat Dev Kit is free software. It makes use of free software licenses as recognized by Free Software Foundation (FSF), and should be freely distributable:

Files located in folder hardware/, if available, describe hardware of a free design, licensed under:

Authorship, copyright and license information may be provided in more detail on a per-folder and/or per-file basis. Check the sources.

On its title page, the generated documentation lists copyright holders as retrieved via Makefile.

Please send a bug report if you find the distribution hindered.
See Zerocat Website for contact information.

Section #../doc/CHANGES.md

CHANGES

Scope

This file tracks changes that are introduced to the project. However, changes introduced to hardware design files are tracked in file ../hardware/CHANGES.txt instead.

Log

NOTICE: Anyone modifying the project should provide brief information about the modifications, including the date they were made. Information should be added but never removed from this file. Licensees should provide a brief entry with a date and the nature of the modification for each change. Please use markdown syntax!

Section #../doc/cables.md

Cables

Cables Page 1(3)

Cables Page 1(3)

Cables Page 2(3)

Cables Page 2(3)

Cables Page 3(3)

Cables Page 3(3)

Section #../doc/charset6x7.md

Dot Matrix 6x7 Character Set

Display 8x48 Usage

        ················································
        ················································
        ················································
        ················································
        ················································
        ················································
        ················································
        NNNNNNNNXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


        N = active line indicator field (lines 1..8)
        · = viewport’s character field (8 characters à 6x7 dots)
        X = indicator field for viewport and cursor position (1..40) in active line

Display 8x48 Usage Example

The internal text map is organized in 8 lines à 40 characters, allowing 320 characters in total. The display shows the first block of 8 characters of line 3; the cursor is located at character 7 of this line. The current text content is: “ABC...”, each character uses a 6x7 dot matrix.

                                            Cursor displays inverted content.
                                            |
                                            v
        ····································OOOOOO······
        ·OOO··OOOO···OOOO···················OOOOOO······
        O···O·O···O·O·······················OOOOOO······
        OOOOO·OOOO··O·······················OOOOOO······
        O···O·O···O·O·······················OOOOOO······
        O···O·OOOO···OOOO···O·····O·····O···OOOOOO······
        ····································OOOOOO······
        ··O·····OOOOOO·O································
          ^           ^
          |           |
          |           Indicate viewport and cursor position (7) in active line
          |
          Indicate active line 3(8) of text map.

Text Samples

        Line 1: “Hello, World!”
        ············OOO···OOO···························            OOO       O   O   OOOOOO
        O···O·········O·····O·····················O···O·              O       O   O   OOOOOO
        O···O··OOO····O·····O····OOO··············O···O· OOO  O OO    O    OOOO   O   OOOOOO
        OOOOO·OOOOO···O·····O···O···O·············O·O·O·O   O OO      O   O   O   O   OOOOOO
        O···O·O·······O·····O···O···O·············O·O·O·O   O O       O   O   O       OOOOOO
        O···O··OOO·····OO····OO··OOO····O··········O·O·· OOO  O        OO  OOOO   O   OOOOOO
        ·······························O················                              OOOOOO
        O·······OOOOOOOO·····O··························                                    

        Line 2: “Password:”
        ··············································O·      OOOOOO
        OOOO··········································O·      OOOOOO
        O···O·OOOO·····OOO···OOOO···O··OOO··O·OO···OOOO·      OOOOOO
        OOOO···OOOO···O·····O···O···O·O···O·OO····O···O·  O   OOOOOO
        O·····O···O····O·····O··O·O·O·O···O·O·····O···O·      OOOOOO
        O······OOOO·OOO···OOO····O·O···OOO··O······OOOO·  O   OOOOOO
        ················································      OOOOOO
        ·O······OOOOOOOO·O······························            

        Line 3: “Zerocat!”
        ············································O···OOOOOO      
        OOOOO································O······O···OOOOOO      
        ···O···OOO··O·OO···OOO···OOOO·OOOO··OOOO····O···OOOOOO      
        ··O···OOOOO·OO····O···O·O······OOOO··O······O···OOOOOO      
        ·O····O·····O·····O···O·O·····O···O··O··········OOOOOO      
        OOOOO··OOO··O······OOO···OOOO··OOOO···OOO···O···OOOOOO      
        ················································OOOOOO      
        ··O·····OOOOOOOOO·······························            

        Line 4: “Pi=3.14”
        ········O·································OOOOOO            
        OOOO··············OOOO··········O···O··O··OOOOOO            
        O···O··OO···OOOOO·····O········OO···O··O··OOOOOO            
        OOOO····O··········OOO··········O···OOOOO·OOOOOO            
        O·······O···OOOOO·····O·········O······O··OOOOOO            
        O·····OOOOO·······OOOO····O···OOOOO····O··OOOOOO            
        ··········································OOOOOO            
        ···O····OOOOOOO·································

Characters 6x7

          0       1       2       3       4       5       6       7       8       9   
        <Space>   !       "       #       $       %       &       '       (       )   
    1   ······  ··O···  ·O·O··  ·O·O··  ··O···  ······  ·OOO··  ··O···  ···O··  ·O····
    2   ······  ··O···  ·O·O··  OOOOO·  ·OOOO·  OO··O·  O·····  ··O···  ··O···  ··O···
    3   ······  ··O···  ······  ·O·O··  O·O···  OO·O··  ·OO···  ······  ·O····  ···O··
    4   ······  ··O···  ······  ·O·O··  ·OOO··  ··O···  O··O·O  ······  ·O····  ···O··
    5   ······  ······  ······  OOOOO·  ··O·O·  ·O·OO·  O···O·  ······  ·O····  ···O··
    6   ······  ··O···  ······  ·O·O··  OOOO··  O··OO·  ·OOO·O  ······  ··O···  ··O···
    7   ······  ······  ······  ······  ··O···  ······  ······  ······  ···O··  ·O····


         10      11      12      13      14      15      16      17      18      19   
          *       +       ,       -       .       /       Æ       Å       æ       å   
    1   ··O···  ······  ······  ······  ······  ·····O  ······  ··O···  ······  ··O···
    2   O·O·O·  ··O···  ······  ······  ······  ····O·  ·OOOO·  ·OOO··  ······  ······
    3   ·OOO··  ··O···  ······  ······  ······  ···O··  O·O···  O···O·  OOO·OO  OOOO··
    4   ·OOO··  OOOOO·  ······  OOOOO·  ······  ··O···  O·OOO·  OOOOO·  ·OOOOO  ·OOOO·
    5   O·O·O·  ··O···  ······  ······  ······  ·O····  OOO···  O···O·  O··O··  O···O·
    6   ··O···  ··O···  ··O···  ······  ··O···  O·····  O·OOO·  O···O·  ·OO·OO  ·OOOO·
    7   ······  ······  ·O····  ······  ······  ······  ······  ······  ······  ······


         20      21      22      23      24      25      26      27      28      29   
          0       1       2       3       4       5       6       7       8       9   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ·OOO··  ··O···  ·OOO··  OOOO··  O··O··  OOOOO·  ·OOOO·  OOOOO·  ·OOO··  ·OOO··
    3   O···O·  ·OO···  O···O·  ····O·  O··O··  O·····  O·····  ···O··  O···O·  O···O·
    4   O·O·O·  ··O···  ···O··  ··OO··  OOOOO·  OOOO··  OOOO··  ··O···  ·OOO··  ·OOOO·
    5   O···O·  ··O···  ··O···  ····O·  ···O··  ····O·  O···O·  ·O····  O···O·  ····O·
    6   ·OOO··  OOOOO·  OOOOO·  OOOO··  ···O··  OOOO··  ·OOO··  O·····  ·OOO··  OOOO··
    7   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         30      31      32      33      34      35      36      37      38      39   
          :       ;       <       =       >       ?       @       €       ß       Øø  
    1   ······  ······  ······  ······  ······  ·OOO··  ·OOO··  ··OOO·  ·OOO··  ······
    2   ······  ······  ···O··  ······  ·O····  O···O·  O···O·  ·O····  O···O·  ·OOOO·
    3   ······  ······  ··O···  OOOOO·  ··O···  ···O··  O·OOO·  OOOOO·  O·OO··  O··OO·
    4   ··O···  ··O···  ·O····  ······  ···O··  ··O···  O·O·O·  OOOO··  O···O·  O·O·O·
    5   ······  ······  ··O···  OOOOO·  ··O···  ······  O·OOO·  ·O····  O···O·  OO··O·
    6   ··O···  ··O···  ···O··  ······  ·O····  ··O···  O·····  ··OOO·  O·OO··  OOOO··
    7   ······  ·O····  ······  ······  ······  ······  ·OOO··  ······  ······  ······


         40      41      42      43      44      45      46      47      48      49   
          A       B       C       D       E       F       G       H       I       J   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ·OOO··  OOOO··  ·OOOO·  OOOO··  OOOOO·  OOOOO·  ·OOO··  O···O·  ·OOO··  ···OO·
    3   O···O·  O···O·  O·····  O···O·  O·····  O·····  O·····  O···O·  ··O···  ····O·
    4   OOOOO·  OOOO··  O·····  O···O·  OOOO··  OOOO··  O·OOO·  OOOOO·  ··O···  ····O·
    5   O···O·  O···O·  O·····  O···O·  O·····  O·····  O···O·  O···O·  ··O···  O···O·
    6   O···O·  OOOO··  ·OOOO·  OOOO··  OOOOO·  O·····  ·OOO··  O···O·  ·OOO··  ·OOO··
    7   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         50      51      52      53      54      55      56      57      58      59   
          K       L       M       N       O       P       Q       R       S       T   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   O··O··  O·····  O···O·  O···O·  ·OOO··  OOOO··  ·OOO··  OOOO··  ·OOOO·  OOOOO·
    3   O·O···  O·····  OO·OO·  OO··O·  O···O·  O···O·  O···O·  O···O·  O·····  ··O···
    4   OO····  O·····  O·O·O·  O·O·O·  O···O·  OOOO··  O···O·  OOOO··  ·OOO··  ··O···
    5   O·O···  O·····  O···O·  O··OO·  O···O·  O·····  O···O·  O···O·  ····O·  ··O···
    6   O··O··  OOOOO·  O···O·  O···O·  ·OOO··  O·····  ·OOO··  O···O·  OOOO··  ··O···
    7   ······  ······  ······  ······  ······  ······  ···OO·  ······  ······  ······


         60      61      62      63      64      65      66      67      68      69   
          U       V       W       X       Y       Z       Ä       Ü       Ö       É   
    1   ······  ······  ······  ······  ······  ······  O···O·  ·O·O··  O···O·  ··O···
    2   O···O·  O···O·  O···O·  O···O·  O···O·  OOOOO·  ·OOO··  O···O·  ·OOO··  OOOOO·
    3   O···O·  O···O·  O···O·  ·O·O··  ·O·O··  ···O··  O···O·  O···O·  O···O·  O·····
    4   O···O·  O···O·  O·O·O·  ··O···  ··O···  ··O···  OOOOO·  O···O·  O···O·  OOOO··
    5   O···O·  ·O·O··  O·O·O·  ·O·O··  ··O···  ·O····  O···O·  O···O·  O···O·  O·····
    6   ·OOO··  ··O···  ·O·O··  O···O·  ··O···  OOOOO·  O···O·  ·OOO··  ·OOO··  OOOOO·
    7   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         70      71      72      73      74      75      76      77      78      79   
          [       \       ]       ^       _       `       ä       ü       ö       é   
    1   ·OOO··  O·····  ·OOO··  ··O···  ······  ··O···  ·O·O··  ·O·O··  ·O·O··  ···O··
    2   ·O····  ·O····  ···O··  ·O·O··  ······  ···O··  ······  ······  ······  ··O···
    3   ·O····  ··O···  ···O··  ······  ······  ······  OOOO··  O···O·  ·OOO··  ·OOO··
    4   ·O····  ···O··  ···O··  ······  ······  ······  ·OOOO·  O···O·  O···O·  OOOOO·
    5   ·O····  ····O·  ···O··  ······  ······  ······  O···O·  O···O·  O···O·  O·····
    6   ·O····  ·····O  ···O··  ······  ······  ······  ·OOOO·  ·OOO··  ·OOO··  ·OOO··
    7   ·OOO··  ······  ·OOO··  ······  OOOOOO  ······  ······  ······  ······  ······


         80      81      82      83      84      85      86      87      88      89   
          a       b       c       d       e       f       g       h       i       j   
    1   ······  O·····  ······  ····O·  ······  ···OO·  ······  O·····  ··O···  ··O···
    2   ······  O·····  ······  ····O·  ······  ··O···  ······  O·····  ······  ······
    3   OOOO··  OOOO··  ·OOOO·  ·OOOO·  ·OOO··  ·OOO··  ·OOOO·  OOOO··  ·OO···  ·OO···
    4   ·OOOO·  O···O·  O·····  O···O·  OOOOO·  ··O···  O···O·  O···O·  ··O···  ··O···
    5   O···O·  O···O·  O·····  O···O·  O·····  ··O···  ·OOOO·  O···O·  ··O···  ··O···
    6   ·OOOO·  OOOO··  ·OOOO·  ·OOOO·  ·OOO··  ··O···  ····O·  O···O·  OOOOO·  ··O···
    7   ······  ······  ······  ······  ······  ······  ·OOO··  ······  ······  OO····


         90      91      92      93      94      95      96      97      98      99   
          k       l       m       n       o       p       q       r       s       t   
    1   O·····  OOO···  ······  ······  ······  ······  ······  ······  ······  ······
    2   O·····  ··O···  ······  ······  ······  ······  ······  ······  ······  ·O····
    3   O··OO·  ··O···  OOOO··  OOOO··  ·OOO··  OOOO··  ·OOOO·  O·OO··  ···OOO  OOOO··
    4   OOO···  ··O···  O·O·O·  O···O·  O···O·  O···O·  O···O   OO····  ··O···  ·O····
    5   O··O··  ··O···  O·O·O·  O···O·  O···O·  OOOO··  ·OOOO·  O·····  ···O··  ·O····
    6   O···O·  ···OO·  O·O·O·  O···O·  ·OOO··  O·····  ····O·  O·····  OOO···  ··OOO·
    7   ······  ······  ······  ······  ······  O·····  ····O·  ······  ······  ······


        100     101     102     103     104     105     106     107     108     109   
          u       v       w       x       y       z       {       |       }       ~   
    1   ······  ······  ······  ······  ······  ······  ···OO·  ··O···  ·OO···  ······
    2   ······  ······  ······  ······  ······  ······  ··O···  ··O···  ···O··  ······
    3   O···O·  O···O·  O···O·  OO··O·  O···O·  OOOO··  ··O···  ··O···  ···O··  ·O····
    4   O···O·  O···O·  O···O·  ··O···  O···O·  ··O···  ·OO···  ··O···  ···OO·  OOOOO·
    5   O···O·  ·O·O··  O·O·O·  ·O·O··  ·OOOO·  ·O····  ··O···  ··O···  ···O··  ···O··
    6   ·OOO··  ··O···  ·O·O··  O···O·  ····O·  OOOOO·  ··O···  ··O···  ···O··  ······
    7   ······  ······  ······  ······  ·OOO··  ······  ···OO·  ··O···  ·OO···  ······
Section #../doc/charset6x9.md

Dot Matrix 6x9 Character Set

Display 10x64 Usage

        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNN····························································
        NNNNXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


        N = active line indicator field (lines 1..40)
        · = viewport’s character field (10 characters à 6x9 dots)
        X = indicator field for viewport and cursor position (1..60) in active line

Display 10x64 Usage Example

The internal text map is organized in 40 lines à 60 characters, allowing 2400 characters in total. The display shows the first block of 10 characters of line 13; the cursor is located at character 7 of this line. The current text content is: “ABC...”, each character uses a 6x9 dot matrix.

        Indicate active line 13(40) of text map.
        1..10
        |11..20
        ||21..30                                Cursor displays inverted content.
        |||31..40                               |
        ||||                                    |
        vvvv                                    v

        ········································OOOOOO··················
        ········································OOOOOO··················
        ·O···OOO··OOOO···OOOO···················OOOOOO··················
        ····O···O·O···O·O·······················OOOOOO··················
        ····OOOOO·OOOO··O·······················OOOOOO··················
        ····O···O·O···O·O·······················OOOOOO··················
        ····O···O·OOOO···OOOO···O·····O·····O···OOOOOO··················
        ········································OOOOOO··················
        ········································OOOOOO··················      Indicate cursor position 7(60) and
        ····OOOOOO·OOO·················································· <--- viewport position 1..10 in active line.

Text Samples

        Line 1: “Hello, World!”
        O·······························································                  OOOOOO
        ················OOO···OOO·······································OOO       O   O   OOOOOO
        ····O···O·········O·····O·····················O···O·············  O       O   O   OOOOOO
        ····O···O··OOO····O·····O····OOO··············O···O··OOO··O·OO··  O    OOOO   O   OOOOOO
        ····OOOOO·OOOOO···O·····O···O···O·············O·O·O·O···O·OO····  O   O   O   O   OOOOOO
        ····O···O·O·······O·····O···O···O·············O·O·O·O···O·O·····  O   O   O       OOOOOO
        ····O···O··OOO·····OO····OO··OOO····O··········O·O···OOO··O·····   OO  OOOO   O   OOOOOO
        ···································O····························                  OOOOOO
        ································································                  OOOOOO
        ····OOOOOOOOOO···O··············································                        


        Line 2: “Password:”
        ··························································OOOOOO
        O·················································O·······OOOOOO
        ····OOOO··········································O·······OOOOOO
        ····O···O·OOOO·····OOO···OOOO···O··OOO··O·OO···OOOO·······OOOOOO
        ····OOOO···OOOO···O·····O···O···O·O···O·OO····O···O···O···OOOOOO
        ····O·····O···O····O·····O··O·O·O·O···O·O·····O···O·······OOOOOO
        ····O······OOOO·OOO···OOO····O·O···OOO··O······OOOO···O···OOOOOO
        ··························································OOOOOO
        ··························································OOOOOO
        ····OOOOOOOOO···················································

        Line 3: “Zerocat!”
        ····················································OOOOOO······
        ················································O···OOOOOO······
        O···OOOOO································O······O···OOOOOO······
        ·······O···OOO··O·OO···OOO···OOOO·OOOO··OOOO····O···OOOOOO······
        ······O···OOOOO·OO····O···O·O······OOOO··O······O···OOOOOO······
        ·····O····O·····O·····O···O·O·····O···O··O··········OOOOOO······
        ····OOOOO··OOO··O······OOO···OOOO··OOOO···OOO···O···OOOOOO······
        ····················································OOOOOO······
        ····················································OOOOOO······
        ····OOOOOOOO·O··················································

        Line 4: “Pi=3.14”
        ··············································OOOOOO············
        ············O·································OOOOOO············
        ····OOOO··············OOOO··········O···O··O··OOOOOO············
        O···O···O··OO···OOOOO·····O········OO···O··O··OOOOOO············
        ····OOOO····O··········OOO··········O···OOOOO·OOOOOO············
        ····O·······O···OOOOO·····O·········O······O··OOOOOO············
        ····O·····OOOOO·······OOOO····O···OOOOO····O··OOOOOO············
        ··············································OOOOOO············
        ··············································OOOOOO············
        ····OOOOOOO·OO··················································

Characters 6x9

          0       1       2       3       4       5       6       7       8       9   
        <Space>   !       "       #       $       %       &       '       (       )   
    1   ······  ······  ·O·O··  ······  ······  ······  ······  ··O···  ······  ······
    2   ······  ··O···  ·O·O··  ·O·O··  ··O···  ······  ·OOO··  ··O···  ···O··  ·O····
    3   ······  ··O···  ······  OOOOO·  ·OOOO·  OO··O·  O·····  ······  ··O···  ··O···
    4   ······  ··O···  ······  ·O·O··  O·O···  OO·O··  ·OO···  ······  ·O····  ···O··
    5   ······  ··O···  ······  ·O·O··  ·OOO··  ··O···  O··O·O  ······  ·O····  ···O··
    6   ······  ······  ······  OOOOO·  ··O·O·  ·O·OO·  O···O·  ······  ·O····  ···O··
    7   ······  ··O···  ······  ·O·O··  OOOO··  O··OO·  ·OOO·O  ······  ··O···  ··O···
    8   ······  ······  ······  ······  ··O···  ······  ······  ······  ···O··  ·O····
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         10      11      12      13      14      15      16      17      18      19   
          *       +       ,       -       .       /       Æ       Å       æ       å   
    1   ··O···  ······  ······  ······  ······  ······  ······  ··O···  ······  ······
    2   O·O·O·  ······  ······  ······  ······  ·····O  ······  ······  ······  ··O···
    3   ·OOO··  ··O···  ······  ······  ······  ····O·  ·OOOO·  ·OOO··  ······  ······
    4   ·OOO··  ··O···  ······  ······  ······  ···O··  O·O···  O···O·  OOO·OO  OOOO··
    5   O·O·O·  OOOOO·  ······  OOOOO·  ······  ··O···  O·OOO·  OOOOO·  ·OOOOO  ·OOOO·
    6   ··O···  ··O···  ······  ······  ······  ·O····  OOO···  O···O·  O··O··  O···O·
    7   ······  ··O···  ··O···  ······  ··O···  O·····  O·OOO·  O···O·  ·OO·OO  ·OOOO·
    8   ······  ······  ·O····  ······  ······  ······  ······  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         20      21      22      23      24      25      26      27      28      29   
          0       1       2       3       4       5       6       7       8       9   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    3   ·OOO··  ··O···  ·OOO··  OOOO··  O··O··  OOOOO·  ·OOOO·  OOOOO·  ·OOO··  ·OOO··
    4   O···O·  ·OO···  O···O·  ····O·  O··O··  O·····  O·····  ···O··  O···O·  O···O·
    5   O·O·O·  ··O···  ···O··  ··OO··  OOOOO·  OOOO··  OOOO··  ··O···  ·OOO··  ·OOOO·
    6   O···O·  ··O···  ··O···  ····O·  ···O··  ····O·  O···O·  ·O····  O···O·  ····O·
    7   ·OOO··  OOOOO·  OOOOO·  OOOO··  ···O··  OOOO··  ·OOO··  O·····  ·OOO··  OOOO··
    8   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         30      31      32      33      34      35      36      37      38      39   
          :       ;       <       =       >       ?       @       €       ß       Øø  
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  ······  ······  ······  ······  ·OOO··  ·OOO··  ··OOO·  ·OOO··  ······
    3   ······  ······  ···O··  ······  ·O····  O···O·  O···O·  ·O····  O···O·  ·OOOO·
    4   ······  ······  ··O···  OOOOO·  ··O···  ···O··  O·OOO·  OOOOO·  O·OO··  O··OO·
    5   ··O···  ··O···  ·O····  ······  ···O··  ··O···  O·O·O·  OOOO··  O···O·  O·O·O·
    6   ······  ······  ··O···  OOOOO·  ··O···  ······  O·OOO·  ·O····  O···O·  OO··O·
    7   ··O···  ··O···  ···O··  ······  ·O····  ··O···  O·····  ··OOO·  O·OO··  OOOO··
    8   ······  ·O····  ······  ······  ······  ······  ·OOO··  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         40      41      42      43      44      45      46      47      48      49   
          A       B       C       D       E       F       G       H       I       J   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    3   ·OOO··  OOOO··  ·OOOO·  OOOO··  OOOOO·  OOOOO·  ·OOO··  O···O·  ·OOO··  ···OO·
    4   O···O·  O···O·  O·····  O···O·  O·····  O·····  O·····  O···O·  ··O···  ····O·
    5   OOOOO·  OOOO··  O·····  O···O·  OOOO··  OOOO··  O·OOO·  OOOOO·  ··O···  ····O·
    6   O···O·  O···O·  O·····  O···O·  O·····  O·····  O···O·  O···O·  ··O···  O···O·
    7   O···O·  OOOO··  ·OOOO·  OOOO··  OOOOO·  O·····  ·OOO··  O···O·  ·OOO··  ·OOO··
    8   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         50      51      52      53      54      55      56      57      58      59   
          K       L       M       N       O       P       Q       R       S       T   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    3   O··O··  O·····  O···O·  O···O·  ·OOO··  OOOO··  ·OOO··  OOOO··  ·OOOO·  OOOOO·
    4   O·O···  O·····  OO·OO·  OO··O·  O···O·  O···O·  O···O·  O···O·  O·····  ··O···
    5   OO····  O·····  O·O·O·  O·O·O·  O···O·  OOOO··  O···O·  OOOO··  ·OOO··  ··O···
    6   O·O···  O·····  O···O·  O··OO·  O···O·  O·····  O···O·  O···O·  ····O·  ··O···
    7   O··O··  OOOOO·  O···O·  O···O·  ·OOO··  O·····  ·OOO··  O···O·  OOOO··  ··O···
    8   ······  ······  ······  ······  ······  ······  ···OO·  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         60      61      62      63      64      65      66      67      68      69   
          U       V       W       X       Y       Z       Ä       Ü       Ö       É   
    1   ······  ······  ······  ······  ······  ······  ·O·O··  ·O·O··  ·O·O··  ···O··
    2   ······  ······  ······  ······  ······  ······  ······  ······  ······  ··O···
    3   O···O·  O···O·  O···O·  O···O·  O···O·  OOOOO·  ·OOO··  O···O·  ·OOO··  OOOOO·
    4   O···O·  O···O·  O···O·  ·O·O··  ·O·O··  ···O··  O···O·  O···O·  O···O·  O·····
    5   O···O·  O···O·  O·O·O·  ··O···  ··O···  ··O···  OOOOO·  O···O·  O···O·  OOOO··
    6   O···O·  ·O·O··  O·O·O·  ·O·O··  ··O···  ·O····  O···O·  O···O·  O···O·  O·····
    7   ·OOO··  ··O···  ·O·O··  O···O·  ··O···  OOOOO·  O···O·  ·OOO··  ·OOO··  OOOOO·
    8   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         70      71      72      73      74      75      76      77      78      79   
          [       \       ]       ^       _       `       ä       ü       ö       é   
    1   ······  ······  ······  ··O···  ······  ··O···  ······  ······  ······  ···O··
    2   ·OOO··  O·····  ·OOO··  ·O·O··  ······  ···O··  ·O·O··  ·O·O··  ·O·O··  ··O···
    3   ·O····  ·O····  ···O··  ······  ······  ······  ······  ······  ······  ······
    4   ·O····  ··O···  ···O··  ······  ······  ······  OOOO··  O···O·  ·OOO··  ·OOO··
    5   ·O····  ···O··  ···O··  ······  ······  ······  ·OOOO·  O···O·  O···O·  OOOOO·
    6   ·O····  ····O·  ···O··  ······  ······  ······  O···O·  O···O·  O···O·  O·····
    7   ·O····  ·····O  ···O··  ······  ······  ······  ·OOOO·  ·OOO··  ·OOO··  ·OOO··
    8   ·OOO··  ······  ·OOO··  ······  ······  ······  ······  ······  ······  ······
    9   ······  ······  ······  ······  OOOOOO  ······  ······  ······  ······  ······


         80      81      82      83      84      85      86      87      88      89   
          a       b       c       d       e       f       g       h       i       j   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  O·····  ······  ····O·  ······  ···OO·  ······  O·····  ··O···  ··O···
    3   ······  O·····  ······  ····O·  ······  ··O···  ······  O·····  ······  ······
    4   OOOO··  OOOO··  ·OOOO·  ·OOOO·  ·OOO··  ·OOO··  ·OOOO·  OOOO··  ·OO···  ·OO···
    5   ·OOOO·  O···O·  O·····  O···O·  OOOOO·  ··O···  O···O·  O···O·  ··O···  ··O···
    6   O···O·  O···O·  O·····  O···O·  O·····  ··O···  ·OOOO·  O···O·  ··O···  ··O···
    7   ·OOOO·  OOOO··  ·OOOO·  ·OOOO·  ·OOO··  ··O···  ····O·  O···O·  OOOOO·  ··O···
    8   ······  ······  ······  ······  ······  ······  ·OOO··  ······  ······  OO····
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


         90      91      92      93      94      95      96      97      98      99   
          k       l       m       n       o       p       q       r       s       t   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   O·····  OOO···  ······  ······  ······  ······  ······  ······  ······  ······
    3   O·····  ··O···  ······  ······  ······  ······  ······  ······  ······  ·O····
    4   O··OO·  ··O···  OOOO··  OOOO··  ·OOO··  OOOO··  ·OOOO·  O·OO··  ···OOO  OOOO··
    5   OOO···  ··O···  O·O·O·  O···O·  O···O·  O···O·  O···O   OO····  ··O···  ·O····
    6   O··O··  ··O···  O·O·O·  O···O·  O···O·  OOOO··  ·OOOO·  O·····  ···O··  ·O····
    7   O···O·  ···OO·  O·O·O·  O···O·  ·OOO··  O·····  ····O·  O·····  OOO···  ··OOO·
    8   ······  ······  ······  ······  ······  O·····  ····O·  ······  ······  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······


        100     101     102     103     104     105     106     107     108     109   
          u       v       w       x       y       z       {       |       }       ~   
    1   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
    2   ······  ······  ······  ······  ······  ······  ···OO·  ··O···  ·OO···  ······
    3   ······  ······  ······  ······  ······  ······  ··O···  ··O···  ···O··  ······
    4   O···O·  O···O·  O···O·  OO··O·  O···O·  OOOO··  ··O···  ··O···  ···O··  ·O····
    5   O···O·  O···O·  O···O·  ··O···  O···O·  ··O···  ·OO···  ··O···  ···OO·  OOOOO·
    6   O···O·  ·O·O··  O·O·O·  ·O·O··  ·OOOO·  ·O····  ··O···  ··O···  ···O··  ···O··
    7   ·OOO··  ··O···  ·O·O··  O···O·  ····O·  OOOOO·  ··O···  ··O···  ···O··  ······
    8   ······  ······  ······  ······  ·OOO··  ······  ···OO·  ··O···  ·OO···  ······
    9   ······  ······  ······  ······  ······  ······  ······  ······  ······  ······
Section #../doc/display-10x64.md

Display 10x64 PCB

Warning: The PCB has not been tested, yet!

Display 10x64 PCB, top view

Display 10x64 PCB, top view

Display 10x64 PCB, bottom view

Display 10x64 PCB, bottom view

Display 10x64 Page 1(14)

Display 10x64 Page 1(14)

Display 10x64 Page 2(14)

Display 10x64 Page 2(14)

Display 10x64 Page 3(14)

Display 10x64 Page 3(14)

Display 10x64 Page 4(14)

Display 10x64 Page 4(14)

Display 10x64 Page 5(14)

Display 10x64 Page 5(14)

Display 10x64 Page 6(14)

Display 10x64 Page 6(14)

Display 10x64 Page 7(14)

Display 10x64 Page 7(14)

Display 10x64 Page 8(14)

Display 10x64 Page 8(14)

Display 10x64 Page 9(14)

Display 10x64 Page 9(14)

Display 10x64 Page 10(14)

Display 10x64 Page 10(14)

Display 10x64 Page 11(14)

Display 10x64 Page 11(14)

Display 10x64 Page 12(14)

Display 10x64 Page 12(14)

Display 10x64 Page 13(14)

Display 10x64 Page 13(14)

Display 10x64 Page 14(14)

Display 10x64 Page 14(14)

Section #../doc/display-8x36.md

Display 8x36 PCB

Warning: The PCB has not been tested, yet!

Display 8x36 PCB, top view

Display 8x36 PCB, top view

Display 8x36 PCB, bottom view

Display 8x36 PCB, bottom view

Display 8x36 Page 1(8)

Display 8x36 Page 1(8)

Display 8x36 Page 2(8)

Display 8x36 Page 2(8)

Display 8x36 Page 3(8)

Display 8x36 Page 3(8)

Display 8x36 Page 4(8)

Display 8x36 Page 4(8)

Display 8x36 Page 5(8)

Display 8x36 Page 5(8)

Display 8x36 Page 6(8)

Display 8x36 Page 6(8)

Display 8x36 Page 7(8)

Display 8x36 Page 7(8)

Display 8x36 Page 8(8)

Display 8x36 Page 8(8)

Section #../doc/display-8x48.md

Display 8x48 PCB

Warning: The PCB has not been tested, yet!

Display 8x48 PCB, top view

Display 8x48 PCB, top view

Display 8x48 PCB, bottom view

Display 8x48 PCB, bottom view

Display 8x48 Page 1(6)

Display 8x48 Page 1(6)

Display 8x48 Page 2(6)

Display 8x48 Page 2(6)

Display 8x48 Page 3(6)

Display 8x48 Page 3(6)

Display 8x48 Page 4(6)

Display 8x48 Page 4(6)

Display 8x48 Page 5(6)

Display 8x48 Page 5(6)

Display 8x48 Page 6(6)

Display 8x48 Page 6(6)

Section #../doc/display-8x64.md

Display 8x64 PCB

Warning: The PCB has not been tested, yet!

Display 8x64 PCB, top view

Display 8x64 PCB, top view

Display 8x64 PCB, bottom view

Display 8x64 PCB, bottom view

Display 8x64 Page 1(13)

Display 8x64 Page 1(13)

Display 8x64 Page 2(13)

Display 8x64 Page 2(13)

Display 8x64 Page 3(13)

Display 8x64 Page 3(13)

Display 8x64 Page 4(13)

Display 8x64 Page 4(13)

Display 8x64 Page 5(13)

Display 8x64 Page 5(13)

Display 8x64 Page 6(13)

Display 8x64 Page 6(13)

Display 8x64 Page 7(13)

Display 8x64 Page 7(13)

Display 8x64 Page 8(13)

Display 8x64 Page 8(13)

Display 8x64 Page 9(13)

Display 8x64 Page 9(13)

Display 8x64 Page 10(13)

Display 8x64 Page 10(13)

Display 8x64 Page 11(13)

Display 8x64 Page 11(13)

Display 8x64 Page 12(13)

Display 8x64 Page 12(13)

Display 8x64 Page 13(13)

Display 8x64 Page 13(13)

Section #../doc/keypad.md

Keypad PCB

Warning: The PCB has not been tested, yet!

Keypad PCB, top view

Keypad PCB, top view

Keypad PCB, bottom view

Keypad PCB, bottom view

Keypad Page 1(5)

Keypad Page 1(5)

Keypad Page 2(5)

Keypad Page 2(5)

Keypad Page 3(5)

Keypad Page 3(5)

Keypad Page 4(5)

Keypad Page 4(5)

Keypad Page 5(5)

Keypad Page 5(5)

Section #../doc/kit-description.md

Kit Description

This file describes the kit, created with system design files located in folder ../hardware/system/, running firmware as found in ../firmware/.

For now, the kit consists of these PCB layouts and cable schematics:

All PCBs are two layer boards with a dimension of 160x70mm.

The kit is not yet called device, as it currently misses a casing, a user interface, labels, and so on.

This kit is work in progress! No physical hardware has been tested yet. Layouts are in preliminary states!

PCB Mounting Holes

Mounting holes are made for M3 screws and bolts, and are thus strengthened with copper vias. The copper extends to 5.8mm in diameter, the drill to 3.3mm.

These vias are not (yet) electrically connected to the PCBs’ GND planes, but this should be taken into consideration as soon as the overall concept of grounding, enclosure material and junction to earth potential is elaborated more clearly.

The mounting holes are placed in the corners using a virtual 100mil grid, what makes it easy to form a multi board system out of PCBs and proto-boards, all mounted together with M3 bolts and screws.

Web Resources

Part Lists

Segor

Mouser

System Hook-Up

   Y-USB
 Power Input
    5VDC
     |
     |
     |        +-------------------------------------+
     |        |  xxxxxx DIP Switches       xxx      |
     +------->|  o Power Status LED     RST select  |<--------> RS232
              |                                     |
              |           Multiboard PCB            |
              |                                     |
              |                                  J8 |<--------> 3V Serial I/O
              |   J4   J5   J6   J7                 |
              +-------------------------------------+
                   ^    ^    ^    ^
                   |    |    |    |               Power Switch,
                   |    |    |    |               Push Buttons,
                   |    |    |    +-------------> LEDs, Potis,
                   |    |    |                    Microphone
                   |    |    |
                   |    |    +------------------> Vcc, GND, P17..P19, Vin’
                   |    +-----------------------> Vcc, GND, P8..P12
                   +----------------------------> Vcc, GND, P0..P7



         +--------------------------------------<-----+
         |     +-------------------<-------+          |
         |     |                           |          |
         |     |         +-+-----+         |          |
         |     |         | |     |         |          |
        +-------------------+              |          |
        |_|_|_|_|_|_|_|_|_|_|   PWR        K          K
        |1| | | | | | | | | |  Switch     LED2       LED1
        +-------------------+              A          A
      J7 |     |         | |     |         |          |
         |     |         +-+-----+         |          |
         |     |                           |          |
         |     +------------------->-------+          |
         +-------------------------------------->-----+

Firmware Upload and Reset

To compile the firmware fromout project’s environment, type:

    [env]$ make -C ../firmware/src

To run the firmware from onchip RAM, type:

    [env]$ make -C ../firmware/start start-ram

To request an active RST pin, thus making the firmware sensitive for reset, type:

    [env]$ make -C ../firmware/start RST-1

This applies to file multiboard.spin in case BOADADDR is set to BOARDADDR_1. Otherwise, use goals RST-2 or RST-3 respectively.

To reset the firmware, type:

    [env]$ make -C ../firmware/start reset

For now, the firmware upload is done over the RS232 port of the developer’s laptop.

Firmware Upload on a combined Multiboard System

This is a draft, partly implemented and partly tested, only! Is the current Multiboard PCB indeed suitable to hook up more boards onto the same RS232 communication bus via J8??

  1. Upon power-on, upload of a starter firmware to onchip RAM is done for all boards at once.

  2. This starter firmware blocks the RST pin of the controller on each board, and counts the number of positive edges on the RS232 reset line. If a match occurs against the coded count number of the firmware, retrieved from DIP switches, the RESETRS232INHIBIT net is released, thus making the board in question sensitive for a reset again.

  3. The host’s make file tries a number of propeller-load invocations in order to generated positive edges on the RS232 port, thus addressing a board according to its firmware and the value of its board address.

    As we do not control the number of edges precisely, this technique should be considered a hack. It might be of advantage if we generate precise edges on the DTR or RTS wire by means of a small host utility, instead.

  4. Finally, the host is able to send a reset and to upload new firmware to the addressed board.

Firmware Upload with modified Booter

This is a draft, to be refined!

The chip comes with the PNut booter, hardcoded in ROM. Its source file is shipped with the P8X32A chip design files, and is licensed under GPLv3+. With variable address, the booter uses a fixed start address, set to zero, when reading or writing to an attached I²C EEPROM. Therefor, the load or write of a dedicated firmware section is not supported.

Draft: Let’s modify the propeller-load application to accept an additional option that allows us to pass a start address other than zero. Let’s modify the booter code to look for that start address.

If we run the new, modified booter and if it has capabilities to mute and monitor the RST pin, we should be able to delegate the firmware upload on a multi chip setup with cascaded/addressed EEPROMs in a clearly, programmatic fashion.

Section #../doc/multiboard.md

Multiboard PCB

Warning: The PCB has not been tested, yet!

Multiboard PCB, top view

Multiboard PCB, top view

Multiboard PCB, bottom view

Multiboard PCB, bottom view

Multiboard Page 1(12)

Multiboard Page 1(12)

Multiboard Page 2(12)

Multiboard Page 2(12)

Multiboard Page 3(12)

Multiboard Page 3(12)

Multiboard Page 4(12)

Multiboard Page 4(12)

Multiboard Page 5(12)

Multiboard Page 5(12)

Multiboard Page 6(12)

Multiboard Page 6(12)

Multiboard Page 7(12)

Multiboard Page 7(12)

Multiboard Page 8(12)

Multiboard Page 8(12)

Multiboard Page 9(12)

Multiboard Page 9(12)

Multiboard Page 10(12)

Multiboard Page 10(12)

Multiboard Page 11(12)

Multiboard Page 11(12)

Multiboard Page 12(12)

Multiboard Page 12(12)

Section #../doc/GNU-FDL.md

GNU Free Documentation License

Version 1.3, 3 November 2008

Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. http://fsf.org/

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

0. PREAMBLE

The purpose of this License is to make a manual, textbook, or other functional and useful document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.

1. APPLICABILITY AND DEFINITIONS

This License applies to any manual or other work, in any medium, that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. Such a notice grants a world-wide, royalty-free license, unlimited in duration, to use that work under the conditions stated herein. The "Document", below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as "you". You accept the license if you copy, modify or distribute the work in a way requiring permission under copyright law.

A "Modified Version" of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language.

A "Secondary Section" is a named appendix or a front-matter section of the Document that deals exclusively with the relationship of the publishers or authors of the Document to the Document's overall subject (or to related matters) and contains nothing that could fall directly within that overall subject. (Thus, if the Document is in part a textbook of mathematics, a Secondary Section may not explain any mathematics.) The relationship could be a matter of historical connection with the subject or with related matters, or of legal, commercial, philosophical, ethical or political position regarding them.

The "Invariant Sections" are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License. If a section does not fit the above definition of Secondary then it is not allowed to be designated as Invariant. The Document may contain zero Invariant Sections. If the Document does not identify any Invariant Sections then there are none.

The "Cover Texts" are certain short passages of text that are listed, as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document is released under this License. A Front-Cover Text may be at most 5 words, and a Back-Cover Text may be at most 25 words.

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9. TERMINATION

You may not copy, modify, sublicense, or distribute the Document except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense, or distribute it is void, and will automatically terminate your rights under this License.

However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.

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Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, receipt of a copy of some or all of the same material does not give you any rights to use it.

10. FUTURE REVISIONS OF THIS LICENSE

The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See http://www.gnu.org/copyleft/.

Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation. If the Document specifies that a proxy can decide which future versions of this License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Document.

11. RELICENSING

"Massive Multiauthor Collaboration Site" (or "MMC Site") means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A "Massive Multiauthor Collaboration" (or "MMC") contained in the site means any set of copyrightable works thus published on the MMC site.

"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 license published by Creative Commons Corporation, a not-for-profit corporation with a principal place of business in San Francisco, California, as well as future copyleft versions of that license published by that same organization.

"Incorporate" means to publish or republish a Document, in whole or in part, as part of another Document.

An MMC is "eligible for relicensing" if it is licensed under this License, and if all works that were first published under this License somewhere other than this MMC, and subsequently incorporated in whole or in part into the MMC, (1) had no cover texts or invariant sections, and (2) were thus incorporated prior to November 1, 2008.

The operator of an MMC Site may republish an MMC contained in the site under CC-BY-SA on the same site at any time before August 1, 2009, provided the MMC is eligible for relicensing.

ADDENDUM: How to use this License for your documents

To use this License in a document you have written, include a copy of the License in the document and put the following copyright and license notices just after the title page:

    Copyright (C)  YEAR  YOUR NAME.
    Permission is granted to copy, distribute and/or modify this document
    under the terms of the GNU Free Documentation License, Version 1.3
    or any later version published by the Free Software Foundation;
    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
    A copy of the license is included in the section entitled "GNU
    Free Documentation License".

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the "with … Texts." line with this:

    with the Invariant Sections being LIST THEIR TITLES, with the
    Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.

If you have Invariant Sections without Cover Texts, or some other combination of the three, merge those two alternatives to suit the situation.

If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.

Section #../doc/GNU-GPL.md

GNU GENERAL PUBLIC LICENSE

Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. http://fsf.org/

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

Preamble

The GNU General Public License is a free, copyleft license for software and other kinds of works.

The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too.

When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.

To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.

For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.

Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it.

For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.

Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users.

Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free.

The precise terms and conditions for copying, distribution and modification follow.

TERMS AND CONDITIONS

0. Definitions.

"This License" refers to version 3 of the GNU General Public License.

"Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.

"The Program" refers to any copyrightable work licensed under this License. Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals or organizations.

To "modify" a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a "modified version" of the earlier work or a work "based on" the earlier work.

A "covered work" means either the unmodified Program or a work based on the Program.

To "propagate" a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well.

To "convey" a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying.

An interactive user interface displays "Appropriate Legal Notices" to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.

1. Source Code.

The "source code" for a work means the preferred form of the work for making modifications to it. "Object code" means any non-source form of a work.

A "Standard Interface" means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language.

The "System Libraries" of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A "Major Component", in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it.

The "Corresponding Source" for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work.

The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.

The Corresponding Source for a work in source code form is that same work.

2. Basic Permissions.

All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.

You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you.

Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary.

3. Protecting Users' Legal Rights From Anti-Circumvention Law.

No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures.

When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures.

4. Conveying Verbatim Copies.

You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.

You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee.

5. Conveying Modified Source Versions.

You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:

A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an "aggregate" if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.

6. Conveying Non-Source Forms.

You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:

A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work.

A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, "normally used" refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product.

"Installation Information" for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.

If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM).

The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.

Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying.

7. Additional Terms.

"Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.

When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.

Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:

All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.

If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.

Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.

8. Termination.

You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).

However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.

Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.

Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.

9. Acceptance Not Required for Having Copies.

You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.

10. Automatic Licensing of Downstream Recipients.

Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.

An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.

You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.

11. Patents.

A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version".

A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.

Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.

In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.

If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.

If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.

A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.

Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.

12. No Surrender of Others' Freedom.

If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.

13. Use with the GNU Affero General Public License.

Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.

14. Revised Versions of this License.

The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.

Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.

If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.

Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.

15. Disclaimer of Warranty.

THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

16. Limitation of Liability.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

17. Interpretation of Sections 15 and 16.

If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.

END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:

    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands \show w' and \show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box".

You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see http://www.gnu.org/licenses/.

The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read http://www.gnu.org/philosophy/why-not-lgpl.html.