NFC/en: различия между версиями
(Новая страница: «== Software == The chip is supported by the library [http://nfc-tools.org/index.php?title=Libnfc libnfc], starting with release 1.7.0. Backport to Debian Wheezy:…») |
(Новая страница: «Work is done in userspace using spidev. By default when using the default dts file using device /dev/spidev1.4. Default config: [https://github.com/contactless/wi…») |
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Backport to Debian Wheezy: [https://github.com/contactless/wirenboard/tree/master/contrib/libnfc], by default in a standard way. | Backport to Debian Wheezy: [https://github.com/contactless/wirenboard/tree/master/contrib/libnfc], by default in a standard way. | ||
Work is done in userspace using spidev. By default when using the default dts file using device /dev/spidev1.4. | |||
Default config: [https://github.com/contactless/wirenboard/blob/master/rootfs/configs/etc/nfc/libnfc.conf]. | |||
Версия 14:04, 19 июля 2019
Hardware
NXP chip is used PN532/en. The chip is connected via SPI. GPIO is used as chip select.
Software
The chip is supported by the library libnfc, starting with release 1.7.0. Backport to Debian Wheezy: [1], by default in a standard way.
Work is done in userspace using spidev. By default when using the default dts file using device /dev/spidev1.4. Default config: [2].
Примеры
Список карточек в области видимости
root@wirenboard:~# nfc-list nfc-list uses libnfc 1.7.0 NFC device: pn532_spi:/dev/spidev1.4 opened 1 ISO14443A passive target(s) found: ISO/IEC 14443A (106 kbps) target: ATQA (SENS_RES): 00 44 UID (NFCID1): 04 f7 04 1a 0d 28 86 SAK (SEL_RES): 00
Чтение Mifare Ultralight
Одноразовые билеты московского метро - карточки Mifare UL.
root@wirenboard:~# nfc-mfultralight r dump.mfd NFC device: pn532_spi:/dev/spidev1.4 opened Found MIFARE Ultralight card with UID: 04f7041a0d2886 Reading 16 pages |................| Done, 16 of 16 pages readed. Writing data to file: dump.mfd ... Done.
Python
Для работы с NFC из Python необходимо использовать биндинги для libnfc. См. пример https://github.com/contactless/wirenboard/tree/master/examples/nfc/python на гитхабе.
C/C++
Примеры работы с libnfc в утилитах, поставляемых с libnfc: http://code.google.com/p/libnfc/source/browse/#git%2Fexamples