1a2e5ee4
 henyxia
Big revision
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/**************************************************************************/
/*!
This example attempts to dump the contents of a Mifare Classic 1K card
Note that you need the baud rate to be 115200 because we need to print
out the data and read from the card at the same time!
To enable debug message, define DEBUG in PN532/PN532_debug.h
*/
/**************************************************************************/
#include <SPI.h>
#include <PN532_SPI.h>
#include "PN532.h"
PN532_SPI pn532spi(SPI, 10);
PN532 nfc(pn532spi);
void setup(void) {
// has to be fast to dump the entire memory contents!
Serial.begin(115200);
Serial.println("Looking for PN532...");
nfc.begin();
uint32_t versiondata = nfc.getFirmwareVersion();
if (! versiondata) {
Serial.print("Didn't find PN53x board");
while (1); // halt
}
// Got ok data, print it out!
Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX);
Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC);
Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
// configure board to read RFID tags
nfc.SAMConfig();
Serial.println("Waiting for an ISO14443A Card ...");
}
void loop(void) {
uint8_t success; // Flag to check if there was an error with the PN532
uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 }; // Buffer to store the returned UID
uint8_t uidLength; // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
uint8_t currentblock; // Counter to keep track of which block we're on
bool authenticated = false; // Flag to indicate if the sector is authenticated
uint8_t data[16]; // Array to store block data during reads
// Keyb on NDEF and Mifare Classic should be the same
uint8_t keyuniversal[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
// Wait for an ISO14443A type cards (Mifare, etc.). When one is found
// 'uid' will be populated with the UID, and uidLength will indicate
// if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
if (success) {
// Display some basic information about the card
Serial.println("Found an ISO14443A card");
Serial.print(" UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
Serial.print(" UID Value: ");
for (uint8_t i = 0; i < uidLength; i++) {
Serial.print(uid[i], HEX);
Serial.print(' ');
}
Serial.println("");
if (uidLength == 4)
{
// We probably have a Mifare Classic card ...
Serial.println("Seems to be a Mifare Classic card (4 byte UID)");
// Now we try to go through all 16 sectors (each having 4 blocks)
// authenticating each sector, and then dumping the blocks
for (currentblock = 0; currentblock < 64; currentblock++)
{
// Check if this is a new block so that we can reauthenticate
if (nfc.mifareclassic_IsFirstBlock(currentblock)) authenticated = false;
// If the sector hasn't been authenticated, do so first
if (!authenticated)
{
// Starting of a new sector ... try to to authenticate
Serial.print("------------------------Sector ");Serial.print(currentblock/4, DEC);Serial.println("-------------------------");
if (currentblock == 0)
{
// This will be 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF for Mifare Classic (non-NDEF!)
// or 0xA0 0xA1 0xA2 0xA3 0xA4 0xA5 for NDEF formatted cards using key a,
// but keyb should be the same for both (0xFF 0xFF 0xFF 0xFF 0xFF 0xFF)
success = nfc.mifareclassic_AuthenticateBlock (uid, uidLength, currentblock, 1, keyuniversal);
}
else
{
// This will be 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF for Mifare Classic (non-NDEF!)
// or 0xD3 0xF7 0xD3 0xF7 0xD3 0xF7 for NDEF formatted cards using key a,
// but keyb should be the same for both (0xFF 0xFF 0xFF 0xFF 0xFF 0xFF)
success = nfc.mifareclassic_AuthenticateBlock (uid, uidLength, currentblock, 1, keyuniversal);
}
if (success)
{
authenticated = true;
}
else
{
Serial.println("Authentication error");
}
}
// If we're still not authenticated just skip the block
if (!authenticated)
{
Serial.print("Block ");Serial.print(currentblock, DEC);Serial.println(" unable to authenticate");
}
else
{
// Authenticated ... we should be able to read the block now
// Dump the data into the 'data' array
success = nfc.mifareclassic_ReadDataBlock(currentblock, data);
if (success)
{
// Read successful
Serial.print("Block ");Serial.print(currentblock, DEC);
if (currentblock < 10)
{
Serial.print(" ");
}
else
{
Serial.print(" ");
}
// Dump the raw data
nfc.PrintHexChar(data, 16);
}
else
{
// Oops ... something happened
Serial.print("Block ");Serial.print(currentblock, DEC);
Serial.println(" unable to read this block");
}
}
}
}
else
{
Serial.println("Ooops ... this doesn't seem to be a Mifare Classic card!");
}
}
// Wait a bit before trying again
Serial.println("\n\nSend a character to run the mem dumper again!");
Serial.flush();
while (!Serial.available());
while (Serial.available()) {
Serial.read();
}
Serial.flush();
}
|