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96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <iostream>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "pn532.hpp"
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using namespace std;
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// the URL we want to add as an NDEF record
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// NOTE: this cannot exceed 34 characters.
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static char url[] = "iotdk.intel.com";
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int
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main(int argc, char** argv)
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{
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//! [Interesting]
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// Instantiate an PN532 on I2C bus 0 (default) using gpio 3 for the
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// IRQ, and gpio 2 for the reset pin.
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upm::PN532 nfc(3, 2);
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if (!nfc.init())
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cerr << "init() failed" << endl;
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uint32_t vers = nfc.getFirmwareVersion();
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if (vers)
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printf("Got firmware version: 0x%08x\n", vers);
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else {
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printf("Could not identify PN532\n");
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return 1;
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}
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// Now scan and identify any cards that come in range (1 for now)
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// Retry forever
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nfc.setPassiveActivationRetries(0xff);
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nfc.SAMConfig();
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uint8_t uidSize;
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uint8_t uid[7];
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bool foundCard = false;
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while (!foundCard) {
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memset(uid, 0, 7);
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if (nfc.readPassiveTargetID(nfc.BAUD_MIFARE_ISO14443A, uid, &uidSize, 2000)) {
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// found a card
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printf("Found a card: UID len %d\n", uidSize);
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printf("UID: ");
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for (int i = 0; i < uidSize; i++)
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printf("%02x ", uid[i]);
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printf("\n");
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printf("SAK: 0x%02x\n", nfc.getSAK());
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printf("ATQA: 0x%04x\n\n", nfc.getATQA());
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foundCard = true;
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} else {
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printf("Waiting for a card...\n");
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}
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}
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if (uidSize != 7) {
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printf("This example will only write an NDEF URI to preformatted\n");
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printf("Mifare Ultralight or NTAG2XX tags\n");
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return 1;
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}
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// 48 bytes is maximum data area on ultralight cards, so we use that
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// as the maximum datasize here. Obviously if you have a bigger
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// card, you can write more data.
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if (!nfc.ntag2xx_WriteNDEFURI(nfc.NDEF_URIPREFIX_HTTP, url, 48)) {
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// failure
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printf("Failed to write NDEF record tag.\n");
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return 1;
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}
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printf("Success, URL record written to tag.\n");
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//! [Interesting]
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return 0;
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}
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