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#!/usr/bin/env python3
"""
#
# PROFIBUS - Telegram sniffer
#
# Copyright (c) 2016-2020 Michael Buesch <m@bues.ch>
#
# Licensed under the terms of the GNU General Public License version 2,
# or (at your option) any later version.
#
"""
from pyprofibus.phy_serial import *
from pyprofibus.fdl import *
from pyprofibus import *
import sys
import getopt
def usage():
print("PROFIBUS bus sniffer")
print("")
print("Usage: profisniff [OPTIONS] DEVICE")
print("")
print("DEVICE is the PHY device /dev/ttySx")
print("")
print("Options:")
print(" -h|--help Show this help.")
def main():
try:
(opts, args) = getopt.getopt(sys.argv[1:],
"h",
[ "help", ])
except getopt.GetoptError as e:
sys.stderr.write(str(e) + "\n")
usage()
return 1
for (o, v) in opts:
if o in ("-h", "--help"):
usage()
return 0
if len(args) != 1:
usage()
return 1
dev = args[0]
try:
phy = CpPhySerial(dev)
xceiv = FdlTransceiver(phy)
xceiv.setRXFilter(None)
except ProfibusError as e:
sys.stderr.write("ERROR: %s\n" % str(e))
return 1
try:
while True:
try:
ok, telegram = xceiv.poll(-1.0)
if not ok or not telegram:
continue
print(telegram)
except ProfibusError as e:
sys.stderr.write("ERROR: %s\n" % str(e))
except KeyboardInterrupt:
return 0
return 1
if __name__ == "__main__":
sys.exit(main())
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