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1 | ## | |
2 | ## This file is part of the libsigrokdecode project. | |
3 | ## | |
4 | ## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | ## | |
6 | ## This program is free software; you can redistribute it and/or modify | |
7 | ## it under the terms of the GNU General Public License as published by | |
8 | ## the Free Software Foundation; either version 2 of the License, or | |
9 | ## (at your option) any later version. | |
10 | ## | |
11 | ## This program is distributed in the hope that it will be useful, | |
12 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ## GNU General Public License for more details. | |
15 | ## | |
16 | ## You should have received a copy of the GNU General Public License | |
17 | ## along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | ## | |
19 | ||
20 | ''' | |
21 | The SPI (Serial Peripheral Interface) protocol decoder supports synchronous | |
22 | SPI(-like) protocols with a clock line, a MISO and MOSI line for data | |
23 | transfer in two directions, and an optional CS# pin. | |
24 | Either MISO or MOSI (but not both) can be optional. | |
25 | ||
26 | If CS# is supplied, data is only decoded when CS# is asserted (clock | |
27 | transitions where CS# is not asserted are ignored). If CS# is not supplied, | |
28 | data is decoded on every clock transition (depending on SPI mode). | |
29 | ''' | |
30 | ||
31 | from .pd import Decoder |