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ogre 1d0f5ccf51 Add the code and some other stuff 2019-04-28 17:11:06 +02:00
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README.md

encdec8b10b

Encode and decode 8B10B encoding

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))
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))
0x17c

Decode Data Byte

from encdec8b10b import EncDec8B10B

byte_to_dec = 0xba
ctrl, decoded = EncDec8B10B.dec_8b10b(byte_to_dec)
print(hex(decoded))
0xf
# ctrl variable confirm that it was a data byte
print(ctrl)
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))
0xbc
# ctrl variable confirm that it was a control byte
print(ctrl)
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)
Encoder - In: A0 - Encoded: 146 - Running Disparity: 0

ctrl, decoded = EncDec8B10B.dec_8b10b(encoded, verbose=True)
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.

Thanks