From bf014116fb4725b60165a01e9a5d1567fbed501b Mon Sep 17 00:00:00 2001 From: Kevin Redon Date: Wed, 3 May 2017 21:29:49 +0200 Subject: Add a Microwire protocol decoder. This fixes parts of bug #931. --- decoders/microwire/__init__.py | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 decoders/microwire/__init__.py (limited to 'decoders/microwire/__init__.py') diff --git a/decoders/microwire/__init__.py b/decoders/microwire/__init__.py new file mode 100644 index 0000000..da2d045 --- /dev/null +++ b/decoders/microwire/__init__.py @@ -0,0 +1,39 @@ +## +## This file is part of the libsigrokdecode project. +## +## Copyright (C) 2017 Kevin Redon +## +## 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 . +## + +''' +Microwire is a 3-wire half-duplex synchronous serial communication protocol. +Originally from National Semiconductor, it is often used in EEPROM chips with +device specific commands on top of the bit stream. + +Channels: + + - CS: chip select, active high + - SK: clock line, for the synchronous communication (idle low) + - SI: slave data input, output by the master and parsed by the selected slave + on rising edge of clock line (idle low) + - SO: slave data output, output by the selected slave and changed on rising + edge of clock line, or goes from low to high when ready during status + check (idle high impedance) + +The channel names might vary from chip to chip but the underlying function is +the same. +''' + +from .pd import Decoder -- cgit v1.2.3-70-g09d2