NFC/en: различия между версиями
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=== Examples === | === Examples === | ||
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root@wirenboard:~# nfc-list | root@wirenboard:~# nfc-list |
Версия 14:05, 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].
Examples
The list of cards in the scope area
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