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##
## This file is part of the sigrok project.
##
## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
##
## 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, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
'''
Serial Peripheral Interface protocol decoder.
Details:
TODO
Protocol output format:
SPI packet:
[<cmd>, <data1>, <data2>]
Commands:
- 'DATA': <data1> contains the MISO data, <data2> contains the MOSI data.
The data is _usually_ 8 bits (but can also be fewer or more bits).
Both data items are Python numbers, not strings.
- 'CS CHANGE': <data1> is the old CS# pin value, <data2> is the new value.
Both data items are Python numbers (0/1), not strings.
Examples:
['CS-CHANGE', 1, 0]
['DATA', 0xff, 0x3a]
['DATA', 0x65, 0x00]
['CS-CHANGE', 0, 1]
'''
from .pd import *
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