Thanks everyone, I obviously missed that option completely. I think it just never occurred to me to look into the drop-down menus much. In Wireshark, exporting packets is a separate option, perhaps I was subconsciously looking for something too similar :)
Save as → Save Selected Range As indeed works well for me, so I have re-done the captures and updated my article: https://michael.stapelberg.ch/posts/2020-09-28-nuki-scs-bticino-decoding/ https://michael.stapelberg.ch/2020-09-27-rohdaten-klingel-rev2.zip I also fixed an off-by-one bug in my stacked SCS decoder (attached). On Thu, Oct 1, 2020 at 4:55 PM Gerhard Sittig <gerhard.sit...@gmx.net> wrote: > On Thu, 2020-10-01 at 16:27 +0200, Stefan Brüns wrote: > > > > On Donnerstag, 1. Oktober 2020 15:22:13 CEST Michael Stapelberg wrote: > > > Exactly! > > > > > > Wireshark has an option to save filtered or explicitly marked packages > into > > > a new file. > > > > > > If sigrok could add an option to save only samples in between the > currently > > > displayed marker, that would already go a long way. > > > > Pulseview has that option for well over a year. > > Release doc says 2016-01, version control says 2015-12. Yep, > has been around for more than a year. > > > virtually yours > Gerhard Sittig > -- > If you don't understand or are scared by any of the above > ask your parents or an adult to help you. > > > _______________________________________________ > sigrok-devel mailing list > sigrok-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sigrok-devel >
From 85ca063970ba256ce8f9c77f625826dc9f251487 Mon Sep 17 00:00:00 2001 From: Michael Stapelberg <stapelb...@google.com> Date: Mon, 28 Sep 2020 08:25:52 +0200 Subject: [PATCH] add decoder for the SCS bus (Sistema Cablaggio Semplificato) --- decoders/scs/__init__.py | 26 ++++++++++++++ decoders/scs/pd.py | 77 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 103 insertions(+) create mode 100644 decoders/scs/__init__.py create mode 100644 decoders/scs/pd.py diff --git a/decoders/scs/__init__.py b/decoders/scs/__init__.py new file mode 100644 index 0000000..bba605b --- /dev/null +++ b/decoders/scs/__init__.py @@ -0,0 +1,26 @@ +## +## This file is part of the libsigrokdecode project. +## +## Copyright (C) 2020 Michael Stapelberg +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, see <http://www.gnu.org/licenses/>. +## + +''' +Decoder for the SCS bus (Sistema Cablaggio Semplificato, i.e. Simplified Cable +Solution), a fieldbus network protocol for home automation, used by bTicino and +Legrand. +''' + +from .pd import Decoder diff --git a/decoders/scs/pd.py b/decoders/scs/pd.py new file mode 100644 index 0000000..2ce9c92 --- /dev/null +++ b/decoders/scs/pd.py @@ -0,0 +1,77 @@ +## +## This file is part of the libsigrokdecode project. +## +## Copyright (C) 2020 Michael Stapelberg +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 2 of the License, or +## (at your option) any later version. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, see <http://www.gnu.org/licenses/>. +## + +import sigrokdecode as srd + +class Decoder(srd.Decoder): + api_version = 3 + id = 'scs' + name = 'SCS' + longname = 'Sistema Cablaggio Semplificato (Simplified Cable Solution)' + desc = 'fieldbus network protocol for home automation, used by bTicino and Legrand' + license = 'gplv2+' + inputs = ['uart'] + outputs = [] + tags = ['Embedded/industrial', 'Networking'] + channels = ( + {'id': 'data', 'name': 'Data', 'desc': 'Data line'}, + ) + annotations = ( + ('scs', 'SCS'), + ) + options = () + + def __init__(self): + self.reset() + + def reset(self): + self.telegram_idx = 0 + + # called before beginning of decoding + def start(self): + self.out_ann = self.register(srd.OUTPUT_ANN) + + # called to start decoding + def decode(self, startsample, endsample, data): + ptype, rxtx, pdata = data + if ptype != 'DATA': + return + val = pdata[0] + if self.telegram_idx == 0 and val == 0xa8: + self.put(startsample, endsample, self.out_ann, [0, ['init']]) + elif self.telegram_idx == 1: + self.crc = val + self.put(startsample, endsample, self.out_ann, [0, ['addr']]) + elif self.telegram_idx == 2: + self.crc ^= val + self.put(startsample, endsample, self.out_ann, [0, ['??']]) + elif self.telegram_idx == 3: + self.crc ^= val + self.put(startsample, endsample, self.out_ann, [0, ['request']]) + elif self.telegram_idx == 4: + self.crc ^= val + self.put(startsample, endsample, self.out_ann, [0, ['??']]) + elif self.telegram_idx == 5: + crc = 'good' if self.crc == val else 'bad' + self.put(startsample, endsample, self.out_ann, [0, ['%s crc' % crc]]) + elif self.telegram_idx == 6: + self.put(startsample, endsample, self.out_ann, [0, ['term']]) + self.telegram_idx = -1 + + self.telegram_idx += 1 -- 2.28.0
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