Files
dragonpilot/panda/python/utils.py
Vehicle Researcher 9ca1ac0042 lp-dp 2023-08-02T01:57:46 for EON/C2
version: lp-dp v0.9.4 for EON/C2
date: 2023-08-02T01:57:46
commit: 63c51d4b134e443b1ffa59dfe0fc2d50d5e0f446
2023-08-02 01:57:49 +00:00

13 lines
321 B
Python

def crc8_pedal(data):
crc = 0xFF # standard init value
poly = 0xD5 # standard crc8: x8+x7+x6+x4+x2+1
size = len(data)
for i in range(size - 1, -1, -1):
crc ^= data[i]
for _ in range(8):
if ((crc & 0x80) != 0):
crc = ((crc << 1) ^ poly) & 0xFF
else:
crc <<= 1
return crc