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1 | ## | |
2 | ## This file is part of the libsigrokdecode project. | |
3 | ## | |
4 | ## Copyright (C) 2019-2020 Benjamin Vernoux <bvernoux@gmail.com> | |
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 decoder stacks on top of the SPI PD and decodes the st25r39xx High performance NFC universal device and EMVCo reader protocol (SPI mode). | |
22 | ||
23 | It has been successfully tested with the st25r3916, other chips of this family may or may not be fully supported but not been verified. | |
24 | ||
25 | Please note that the SPI interface uses clock polarity 0 and clock phase 1, which is not the default setting. | |
26 | ||
27 | Details: | |
28 | https://www.st.com/resource/en/datasheet/st25r3916.pdf | |
29 | ''' | |
30 | ||
31 | from .pd import Decoder |