Revision 2:b238c6772bc4, committed 2013-11-21

Comitter:

yihui

Date:

Thu Nov 21 07:11:15 2013 +0000

Parent:

1:a9df716f8a64

Commit message:

read a NFC tag

Changed in this revision

--- a/PN532.lib	Thu Oct 17 07:47:22 2013 +0000
+++ b/PN532.lib	Thu Nov 21 07:11:15 2013 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/yihui/code/PN532/#f618fb2169c4
+http://mbed.org/users/yihui/code/PN532/#0774b8298eb8

--- a/USBDevice.lib	Thu Oct 17 07:47:22 2013 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/mbed_official/code/USBDevice/#d495202c90f4

--- a/main.cpp	Thu Oct 17 07:47:22 2013 +0000
+++ b/main.cpp	Thu Nov 21 07:11:15 2013 +0000
@@ -1,126 +1,35 @@
 #include "mbed.h"
-#include "PN532.h"
+#include "PN532_SPI.h"
+#include "NfcAdapter.h"
 
-#if 0   // Output debug message or not
+#if 0                           // Using Seeeduino Arch
 #define LOG(args...)
-#else
-#include "USBSerial.h"
+SPI spi(P1_22, P1_21, P1_20);  // SPI(mosi, miso, clk)
+PN532_SPI pn532spi(spi, P0_2);
+
+#else                           // Using Arch Pro
 #define LOG(args...)        pc.printf(args)
-
-USBSerial pc;               // Use USB to Serial
-//Serial pc(USBTX, USBRX);
+Serial pc(USBTX, USBRX);
+SPI spi(P0_18, P0_17, P0_15);
+PN532_SPI pn532spi(spi, P0_6);
 #endif
 
-// PN532(mosi, miso, clk, cs)
-PN532 nfc(P1_22, P1_21, P1_20, P0_2);
-
-DigitalOut led1(LED1);
-
-int main()
-{
-    nfc.begin();
-    uint32_t versiondata = nfc.getFirmwareVersion();
-    if (! versiondata) {
-        LOG("Didn't find PN532\r\n");
-        while (1) {
-            led1 = !led1;
-            wait(0.1);
-        }
-    }
-
-    LOG("Found chip PN5%2X\r\n", versiondata >> 24);
-    LOG("Firmware V%d.%d\r\n", (versiondata >> 16) & 0xFF, (versiondata >> 8) & 0xFF);
-
-    nfc.SAMConfig();
+NfcAdapter nfc(pn532spi);
+DigitalOut led(LED1);
 
-    while (1) {
-        uint8_t success;
-        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)
-
-        // 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, 0);
-
-        if (success) {
-            // Display some basic information about the card
-            LOG("Found an ISO14443A card\r\n");
-            LOG("UID length: %d\r\nUID Value: ", uidLength);
-            for (uint8_t i = 0; i < uidLength; i++) {
-                LOG("0x%X ", uid[i]);
-            }
-
-            if (uidLength == 4) {
-                // We probably have a Mifare Classic card ...
-                LOG("Seems to be a Mifare Classic card (4 byte UID)\r\n");
-
-                // Now we need to try to authenticate it for read/write access
-                // Try with the factory default KeyA: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
-                LOG("Trying to authenticate block 4 with default KEYA value\r\n");
-                uint8_t keya[6] = { 0xD3, 0xF7, 0xD3, 0xF7, 0xD3, 0xF7 };
 
-                // Start with block 4 (the first block of sector 1) since sector 0
-                // contains the manufacturer data and it's probably better just
-                // to leave it alone unless you know what you're doing
-                success = nfc.mifareclassic_AuthenticateBlock(uid, uidLength, 4, 0, keya);
-
-                if (success) {
-                    LOG("Sector 1 (Blocks 4..7) has been authenticated\r\n");
-                    uint8_t data[16];
-
-                    // If you want to write something to block 4 to test with, uncomment
-                    // the following line and this text should be read back in a minute
-                    // data = { 'a', 'd', 'a', 'f', 'r', 'u', 'i', 't', '.', 'c', 'o', 'm', 0, 0, 0, 0};
-                    // success = nfc.mifareclassic_WriteDataBlock (4, data);
-
-                    // Try to read the contents of block 4
-                    success = nfc.mifareclassic_ReadDataBlock(4, data);
-
-                    if (success) {
-                        // Data seems to have been read ... spit it out
-                        LOG("Reading Block 4:\r\n");
-                        for (int i = 0; i < 16; i++) {
-                            LOG("%2X ", data[i]);
-                        }
-                        LOG("       ");
-                        for (int i = 0; i < 16; i++) {
-                            LOG("%c", (char)data[i]);
-                        }
-                        LOG("\r\n");
-                    } else {
-                        LOG("Ooops ... unable to read the requested block.  Try another key?\r\n");
-                    }
-                } else {
-                    LOG("Ooops ... authentication failed: Try another key?\r\n");
-                }
-            }
-
-            if (uidLength == 7) {
-                // We probably have a Mifare Ultralight card ...
-                LOG("Seems to be a Mifare Ultralight tag (7 byte UID)\r\n");
-
-                // Try to read the first general-purpose user page (#4)
-                LOG("Reading page 4\r\n");
-                uint8_t data[32];
-                success = nfc.mifareultralight_ReadPage (4, data);
-                if (success) {
-                    // Data seems to have been read ... spit it out
-                    for (int i = 0; i < 4; i++) {
-                            LOG("%2X ", data[i]);
-                        }
-                        LOG("       ");
-                        for (int i = 0; i < 4; i++) {
-                            LOG("%c", (char)data[i]);
-                        }
-                    LOG("\r\n");
-                } else {
-                    LOG("Ooops ... unable to read the requested page!?\r\n");
-                }
+int main() {
+    LOG("NDEF Reader\n");
+    nfc.begin();
+    while (1) {
+        LOG("\nScan a NFC tag\n");
+        if (nfc.tagPresent()) {
+            NfcTag tag = nfc.read();        // tag.print() doesn't work yet
+            if (tag.hasNdefMessage()) {
+                LOG("Get a NDEF message.");
+                NdefMessage message = tag.getNdefMessage();
             }
         }
-        
-        wait(3);
+        wait(5);
     }
 }
-