git-subtree-dir: blinkled/encdec8b10b
git-subtree-split: 28ed9d5da0
blinkled
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.idea | |||
__pycache__ | |||
build/ | |||
venv/ | |||
dist/ | |||
*egg-info* |
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language: python | |||
python: | |||
- "3.4" | |||
- "3.5" | |||
- "3.6" | |||
install: | |||
- pip install -e . | |||
script: | |||
- make test |
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MIT License | |||
Copyright (c) 2019 Ola Grøttvik | |||
Permission is hereby granted, free of charge, to any person obtaining a copy | |||
of this software and associated documentation files (the "Software"), to deal | |||
in the Software without restriction, including without limitation the rights | |||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
copies of the Software, and to permit persons to whom the Software is | |||
furnished to do so, subject to the following conditions: | |||
The above copyright notice and this permission notice shall be included in all | |||
copies or substantial portions of the Software. | |||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |||
SOFTWARE. |
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.PHONY: init freeze test test_verbose build_dist upload | |||
venv: | |||
python3 -m venv .env | |||
init: | |||
pip install -r requirements.txt | |||
freeze: | |||
pip freeze | grep -v "pkg-resources" > requirements.txt | |||
test: | |||
nosetests tests/* | |||
test_verbose: | |||
nosetests --nocapture tests/* | |||
build_dist: | |||
rm -rf dist/* | |||
python3 setup.py sdist bdist_wheel | |||
upload_test: | |||
python3 -m twine upload --repository-url https://test.pypi.org/legacy/ dist/* | |||
upload: | |||
python3 -m twine upload dist/* |
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[](https://travis-ci.com/olagrottvik/encdec8b10b) | |||
# encdec8b10b | |||
Encode and decode 8B10B encoding | |||
## Get | |||
``` | |||
python3 -m pip install encdec8b10b | |||
``` | |||
## Usage | |||
### Encode Data Byte | |||
``` | |||
from encdec8b10b import EncDec8B10B | |||
running_disp = 0 | |||
byte_to_enc = 0xf | |||
running_disp, encoded = EncDec8B10B.enc_8b10b(byte_to_enc, running_disp) | |||
print(hex(encoded)) | |||
Output >> 0xba | |||
``` | |||
### Encode Control Byte | |||
``` | |||
from encdec8b10b import EncDec8B10B | |||
running_disp = 0 | |||
byte_to_enc = 0xbc # comma | |||
ctrl = 1 | |||
running_disp, encoded = EncDec8B10B.enc_8b10b(byte_to_enc, running_disp, ctrl) | |||
print(hex(encoded)) | |||
Output >> 0x17c | |||
``` | |||
### Decode Data Byte | |||
``` | |||
from encdec8b10b import EncDec8B10B | |||
byte_to_dec = 0xba | |||
ctrl, decoded = EncDec8B10B.dec_8b10b(byte_to_dec) | |||
print(hex(decoded)) | |||
Output >> 0xf | |||
# ctrl variable confirm that it was a data byte | |||
print(ctrl) | |||
Output >> 0 | |||
``` | |||
### Decode Control Byte | |||
``` | |||
from encdec8b10b import EncDec8B10B | |||
byte_to_dec = 0x17c # comma encoded | |||
ctrl, decoded = EncDec8B10B.dec_8b10b(byte_to_dec) | |||
print(hex(decoded)) | |||
Output >> 0xbc | |||
# ctrl variable confirm that it was a control byte | |||
print(ctrl) | |||
Output >> 1 | |||
``` | |||
### Verbosity | |||
Both functions have a verbose-mode to make it easier to confirm everything that's happening: | |||
``` | |||
from encdec8b10b import EncDec8B10B | |||
running_disp = 0 | |||
byte_to_enc = 0xA0 | |||
running_disp, encoded = EncDec8B10B.enc_8b10b(byte_to_enc, running_disp, verbose=True) | |||
Output >> Encoder - In: A0 - Encoded: 146 - Running Disparity: 0 | |||
ctrl, decoded = EncDec8B10B.dec_8b10b(encoded, verbose=True) | |||
Output >> Decoded: A0 - Control: 0 | |||
``` | |||
## 8B10B | |||
8B10B Encoding were implemented by Al Widmer and Peter Franaszek in 1983. It is still widely used in high-speed electronics. | |||
- [Original article](https://ieeexplore.ieee.org/document/5390392) | |||
- [Wikipedia](https://en.wikipedia.org/wiki/8b/10b_encoding) | |||
### Thanks | |||
- [Ryu Shinhyung](https://opencores.org/projects/async_8b10b_encoder_decoder) for creating the tables used in this module | |||
- [Chuck Benz](http://asics.chuckbenz.com/) for creating awesome combinational 8B10B modules | |||
- [Alex Forencich](http://www.alexforencich.com/wiki/en/scripts/matlab/enc8b10b) for his 8B10B Matlab script |
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from .core import EncDec_8B10B as EncDec8B10B |
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bleach==3.1.4 | |||
certifi==2019.3.9 | |||
chardet==3.0.4 | |||
docutils==0.14 | |||
idna==2.8 | |||
nose==1.3.7 | |||
pkginfo==1.5.0.1 | |||
Pygments==2.3.1 | |||
readme-renderer==24.0 | |||
requests==2.21.0 | |||
requests-toolbelt==0.9.1 | |||
six==1.12.0 | |||
tqdm==4.31.1 | |||
twine==1.13.0 | |||
urllib3==1.24.2 | |||
webencodings==0.5.1 |
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import setuptools | |||
with open("README.md", "r") as fh: | |||
long_description = fh.read() | |||
setuptools.setup( | |||
name='encdec8b10b', | |||
version='1.0', | |||
packages=setuptools.find_packages(), | |||
url='https://github.com/olagrottvik/encdec8b10b', | |||
license='MIT', | |||
author='Ola Grøttvik', | |||
author_email='olagrottvik@gmail.com', | |||
description='8B10B Encoding and Decoding', | |||
long_description=long_description, | |||
long_description_content_type="text/markdown", | |||
) |
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# -*- coding: utf-8 -*- | |||
import sys | |||
import os | |||
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))) | |||
import encdec8b10b |
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# -*- coding: utf-8 -*- | |||
from .context import encdec8b10b | |||
from encdec8b10b import EncDec8B10B | |||
import random | |||
import unittest | |||
verbose = True # Set to True to get test output | |||
class TestSuite(unittest.TestCase): | |||
"""All test cases""" | |||
def test_comma(self): | |||
print("Testing K28.5 Comma...") | |||
running_disparity = 0 | |||
test_data = 0xBC | |||
test_ctrl = 1 | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(test_data, running_disparity, test_ctrl, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(data_decoded, running_disparity, 1, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert data_decoded == test_data and ctrl == test_ctrl, "K28.5 Comma Test Failed" | |||
def test_known_seq(self): | |||
print("Testing Known Sequence...") | |||
known_seq = [0xa0, 0x7a, 0xFF, 0xc2, 0x48, 0xda, 0x1b, 0x2e, 0x1f, 0x5b, 0xa5, 0x20, 0xb6, 0x10, 0xc3, 0x4d, 0xa0, 0x17, 0x83, | |||
0x3b, 0x2e, 0x7d, 0x61, 0x73, 0x4d, 0xc5, 0x42, 0x59, 0x45, 0x7c, 0x12, 0x1c, 0x03, 0x52, 0xdd, 0x30, 0xa5] | |||
encoded_seq = [0x146, 0xda, 0x235, 0x1ad, 0x298, 0x19a, 0x9b, 0x24e, 0xb5, 0x29b, 0x165, 0x246, 0x156, 0xb6, 0x1a3, 0x28d, 0x179, 0x368, 0x123, | |||
0x25b, 0x24e, 0xe2, 0x32e, 0x313, 0x28d, 0x1a5, 0x292, 0x299, 0x2a5, 0x0dc, 0x372, 0x9c, 0x363, 0x2b2, 0x1a2, 0x276, 0x165] | |||
result_encoded = list() | |||
result_decoded = list() | |||
# Manually set running disparity to known start | |||
running_disparity = 1 | |||
test_ctrl = 0 | |||
for byte, encoded in zip(known_seq, encoded_seq): | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(byte, running_disparity, test_ctrl, verbose) | |||
assert data_encoded == encoded, "Data Encoded (0x{:03X}) does not match known sequence (0x{:03X})".format(data_encoded, encoded) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert data_decoded == byte, "Data Decoded (0x{:02X}) does not match input byte (0x{:02X})".format(data_decoded, byte) | |||
def test_rand_seq(self): | |||
print("Testing Random Data Sequence...") | |||
test_ctrl = 0 | |||
running_disparity = 0 | |||
for i in range(100000): | |||
rand_byte = random.randint(0, 0xFF) | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(rand_byte, running_disparity, test_ctrl, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert rand_byte == data_decoded, "Data Decoded (0x{:02X}) does not match input byte (0x{:02X})".format(data_decoded, rand_byte) | |||
running_disparity = 1 | |||
for i in range(100000): | |||
rand_byte = random.randint(0, 0xFF) | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(rand_byte, running_disparity, test_ctrl, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert rand_byte == data_decoded, "Data Decoded (0x{:02X}) does not match input byte (0x{:02X})".format(data_decoded, rand_byte) | |||
def test_ctrl_symbol(self): | |||
print("Testing All Control symbols...") | |||
test_ctrl = 1 | |||
ctrl_symbols = [0x1c, 0x3c, 0x5c, 0x7c, 0x9c, | |||
0xbc, 0xdc, 0xfc, 0xf7, 0xfb, 0xfd, 0xfe] | |||
running_disparity = 0 | |||
for symbol in ctrl_symbols: | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b( | |||
symbol, running_disparity, test_ctrl, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert symbol == data_decoded, "Data Decoded (0x{:02X}) does not match input byte (0x{:02X})".format( | |||
data_decoded, symbol) | |||
running_disparity = 1 | |||
for symbol in ctrl_symbols: | |||
running_disparity, data_encoded = EncDec8B10B.enc_8b10b(symbol, running_disparity, test_ctrl, verbose) | |||
ctrl, data_decoded = EncDec8B10B.dec_8b10b(data_encoded, verbose) | |||
assert symbol == data_decoded, "Data Decoded (0x{:02X}) does not match input byte (0x{:02X})".format(data_decoded, symbol) | |||
if __name__ == '__main__': | |||
unittest.main() |