59 lines
1.6 KiB
Python
Executable File
59 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# type: ignore
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import os
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import argparse
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import struct
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from collections import deque
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from statistics import mean
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from cereal import log
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import cereal.messaging as messaging
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='Sniff a communcation socket')
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parser.add_argument('--addr', default='127.0.0.1')
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args = parser.parse_args()
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if args.addr != "127.0.0.1":
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os.environ["ZMQ"] = "1"
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messaging.context = messaging.Context()
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poller = messaging.Poller()
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messaging.sub_sock('can', poller, addr=args.addr)
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active = 0
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start_t = 0
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start_v = 0
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max_v = 0
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max_t = 0
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window = deque(maxlen=10)
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avg = 0
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while 1:
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polld = poller.poll(1000)
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for sock in polld:
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msg = sock.receive()
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evt = log.Event.from_bytes(msg)
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for item in evt.can:
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if item.address == 0xe4 and item.src == 128:
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torque_req = struct.unpack('!h', item.dat[0:2])[0]
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# print(torque_req)
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active = abs(torque_req) > 0
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if abs(torque_req) < 100:
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if max_v > 5:
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print(f'{start_v} -> {max_v} = {round(max_v - start_v, 2)} over {round(max_t - start_t, 2)}s')
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start_t = evt.logMonoTime / 1e9
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start_v = avg
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max_t = 0
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max_v = 0
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if item.address == 0x1ab and item.src == 0:
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motor_torque = ((item.dat[0] & 0x3) << 8) + item.dat[1]
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window.append(motor_torque)
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avg = mean(window)
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#print(f'{evt.logMonoTime}: {avg}')
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if active and avg > max_v + 0.5:
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max_v = avg
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max_t = evt.logMonoTime / 1e9
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