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45 lines
1.6 KiB
45 lines
1.6 KiB
#!/usr/bin/env python3
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import argparse
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import binascii
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import time
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from collections import defaultdict
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import cereal.messaging as messaging
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def can_printer(bus, max_msg, addr, ascii_decode):
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logcan = messaging.sub_sock('can', addr=addr)
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start = time.monotonic()
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lp = time.monotonic()
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msgs = defaultdict(list)
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while 1:
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can_recv = messaging.drain_sock(logcan, wait_for_one=True)
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for x in can_recv:
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for y in x.can:
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if y.src == bus:
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msgs[y.address].append(y.dat)
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if time.monotonic() - lp > 0.1:
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dd = chr(27) + "[2J"
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dd += f"{time.monotonic() - start:5.2f}\n"
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for _addr in sorted(msgs.keys()):
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a = f"\"{msgs[_addr][-1].decode('ascii', 'backslashreplace')}\"" if ascii_decode else ""
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x = binascii.hexlify(msgs[_addr][-1]).decode('ascii')
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freq = len(msgs[_addr]) / (time.monotonic() - start)
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if max_msg is None or _addr < max_msg:
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dd += f"{_addr:04X}({_addr:4d})({len(msgs[_addr]):6d})({freq:3}dHz) {x.ljust(20)} {a}\n"
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print(dd)
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lp = time.monotonic()
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="simple CAN data viewer",
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument("--bus", type=int, help="CAN bus to print out", default=0)
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parser.add_argument("--max_msg", type=int, help="max addr")
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parser.add_argument("--ascii", action='store_true', help="decode as ascii")
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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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can_printer(args.bus, args.max_msg, args.addr, args.ascii)
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