sbus_futaba: add decoder for SBUS hobby remote control by Futaba

[libsigrokdecode.git] / decoders / sbus_futaba / __init__.py

diff --git a/decoders/sbus_futaba/__init__.py b/decoders/sbus_futaba/__init__.py
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+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2022 Gerhard Sittig <gerhard.sittig@gmx.net>
+##
+## 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/>.
+##
+
+'''
+SBUS by Futaba, a hobby remote control protocol on top of UART.
+Sometimes referred to as "Serial BUS" or S-BUS.
+
+UART communication typically runs at 100kbps with 8e2 frame format and
+inverted signals (high voltage level is logic low).
+
+SBUS messages take 3ms to transfer, and typically repeat in intervals
+of 7ms or 14ms. An SBUS message consists of 25 UART bytes, and carries
+16 proportional channels with 11 bits each, and 2 digital channels
+(boolean, 1 bit), and flags which represent current communication state.
+Proportional channel values typically are in the 192..1792 range, but
+individual implementations may differ.
+'''
+
+from .pd import Decoder