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  1. def crc8_sae_j1850_zero(data):
  2.     crc = 0x00
  3.     polynomial = 0x1D
  4.  
  5.     for byte in data:
  6.         crc ^= byte
  7.         for _ in range(8):
  8.             if crc & 0x80:
  9.                 crc = (crc << 1) ^ polynomial
  10.             else:
  11.                 crc <<= 1
  12.         crc &= 0xFF  # Ensure 8-bit CRC
  13.  
  14.     return crc
  15.  
  16. # Example usage with your provided data:
  17. data = [0xF2, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
  18. calculated_crc = crc8_sae_j1850_zero(data)
  19. print(hex(calculated_crc))  # Output the calculated CRC in hexadecimal format
  20.  
  21.  
  22.  
Success #stdin #stdout 0.03s 63552KB
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0x25
https://ideone.com/XWbiaC
language:
Python (PyPy 2.7.13)
created:
1 day ago
visibility:
public

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