https://github.com/scriptim/crc-calculator

Website and CLI for error detection with Cyclic Redundancy Checks
https://github.com/scriptim/crc-calculator

cli crc crc-algorithms crc-calculation cyclic-redundancy-check website

Last synced: about 1 month ago
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Website and CLI for error detection with Cyclic Redundancy Checks

• Host: GitHub
• URL: https://github.com/scriptim/crc-calculator
• Owner: Scriptim
• License: mit
• Created: 2019-01-16T21:19:04.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-05-07T22:06:18.000Z (about 5 years ago)
• Last Synced: 2025-02-16T19:32:41.470Z (4 months ago)
• Topics: cli, crc, crc-algorithms, crc-calculation, cyclic-redundancy-check, website
• Language: JavaScript
• Homepage: https://scriptim.github.io/crc-calculator/
• Size: 16.6 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# CRC Calculator

Website and CLI for error detection with Cyclic Redundancy Checks.

## Usage

    $ node index.js --help

    CRC Calculator

    Usage:

      node index.js --help | --version | --generators

      node index.js  ( | --generator ) [--check] [--short]

    Positional Arguments:

      data       Binary data string.

      generator  Binary string encoding the CRC polynomial.

    Options:

      -h --help        Show this help page.

      -v --version     Show version.

      -s --short       Only show the resulting codeword.

      -c --check       Check a codeword for errors.

      -g --generator   Name of a predefined CRC polynomial.

      -l --generators  Show a list of predefined CRC polynomials.

### Examples

#### Default Usage

    $ node index.js 101001011 1010

    101001011000 : 1010

    1010

    ----

    000001011000

        1010

        ----

        0001000

            1010

            ----

            0010

    101001011010

#### Check a codeword

    $ node index.js 101001011010 1010 --check

    101001011010 : 1010

    1010

    ----

    000001011010

        1010

        ----

        0001010

            1010

            ----

            0000

    Error: false

#### Use a predefined generator polynomial

    $ node index.js 101001011 --generator crc-1

    1010010110 : 11

    11

    --

    0110010110

    11

    --

    000010110

        11

        --

        01110

          11

          --

          0010

            11

            --

            01

    1010010111