1 /*
2 * Author: Jon Trulson <jtrulson@ics.com>
3 * Copyright (c) 2015 Intel Corporation.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include <unistd.h>
26 #include <iostream>
27 #include "pn532.h"
28
29 using namespace std;
30
31 // the URL we want to add as an NDEF record
32 // NOTE: this cannot exceed 34 characters.
33 static char url[] = "iotdk.intel.com";
34
35
main(int argc,char ** argv)36 int main(int argc, char **argv)
37 {
38 //! [Interesting]
39 // Instantiate an PN532 on I2C bus 0 (default) using gpio 3 for the
40 // IRQ, and gpio 2 for the reset pin.
41
42 upm::PN532 *nfc = new upm::PN532(3, 2);
43
44 if (!nfc->init())
45 cerr << "init() failed" << endl;
46
47 uint32_t vers = nfc->getFirmwareVersion();
48
49 if (vers)
50 printf("Got firmware version: 0x%08x\n", vers);
51 else
52 {
53 printf("Could not identify PN532\n");
54 return 1;
55 }
56
57 // Now scan and identify any cards that come in range (1 for now)
58
59 // Retry forever
60 nfc->setPassiveActivationRetries(0xff);
61
62 nfc->SAMConfig();
63
64 uint8_t uidSize;
65 uint8_t uid[7];
66
67 bool foundCard = false;
68 while (!foundCard)
69 {
70 memset(uid, 0, 7);
71 if (nfc->readPassiveTargetID(nfc->BAUD_MIFARE_ISO14443A,
72 uid, &uidSize, 2000))
73 {
74 // found a card
75 printf("Found a card: UID len %d\n", uidSize);
76 printf("UID: ");
77 for (int i = 0; i < uidSize; i++)
78 printf("%02x ", uid[i]);
79 printf("\n");
80 printf("SAK: 0x%02x\n", nfc->getSAK());
81 printf("ATQA: 0x%04x\n\n", nfc->getATQA());
82 foundCard = true;
83 }
84 else
85 {
86 printf("Waiting for a card...\n");
87 }
88 }
89
90 if (uidSize != 7)
91 {
92 printf("This example will only write an NDEF URI to preformatted\n");
93 printf("Mifare Ultralight or NTAG2XX tags\n");
94
95 return 1;
96 }
97
98 // 48 bytes is maximum data area on ultralight cards, so we use that
99 // as the maximum datasize here. Obviously if you have a bigger
100 // card, you can write more data.
101 if (!nfc->ntag2xx_WriteNDEFURI(nfc->NDEF_URIPREFIX_HTTP, url, 48))
102 {
103 // failure
104 printf("Failed to write NDEF record tag.\n");
105 return 1;
106 }
107
108 printf("Success, URL record written to tag.\n");
109
110
111 //! [Interesting]
112
113 delete nfc;
114 return 0;
115 }
116