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1 | ## | |
2 | ## This file is part of the libsigrokdecode project. | |
3 | ## | |
4 | ## Copyright (C) 2013 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 | This protocol decoder can decode synchronous parallel buses with various | |
22 | number of data bits/channels and one (optional) clock line. | |
23 | ||
24 | If no clock line is supplied, the decoder works slightly differently in | |
25 | that it interprets every transition on any of the supplied data channels | |
26 | like there had been a clock transition. | |
27 | ||
28 | It is required to use the lowest data channels, and use consecutive ones. | |
29 | For example, for a 4-bit sync parallel bus, channels D0/D1/D2/D3 (and CLK) | |
30 | should be used. Using combinations like D7/D12/D3/D15 is not supported. | |
31 | For an 8-bit bus you should use D0-D7, for a 16-bit bus use D0-D15 and so on. | |
32 | ''' | |
33 | ||
34 | from .pd import Decoder |