tools/examples/sensors/pn532/ISO14443A_ID/main.c

   1 /**************************************************************************/
   2 /*!
   3     @file     main.c
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @section LICENSE
   7
   8     Software License Agreement (BSD License)
   9
  10     Copyright (c) 2010, microBuilder SARL
  11     All rights reserved.
  12
  13     Redistribution and use in source and binary forms, with or without
  14     modification, are permitted provided that the following conditions are met:
  15     1. Redistributions of source code must retain the above copyright
  16     notice, this list of conditions and the following disclaimer.
  17     2. Redistributions in binary form must reproduce the above copyright
  18     notice, this list of conditions and the following disclaimer in the
  19     documentation and/or other materials provided with the distribution.
  20     3. Neither the name of the copyright holders nor the
  21     names of its contributors may be used to endorse or promote products
  22     derived from this software without specific prior written permission.
  23
  24     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  25     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  26     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  28     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  29     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  30     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  31     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34 */
  35 /**************************************************************************/
  36 #include <stdio.h>
  37
  38 #include "projectconfig.h"
  39 #include "sysinit.h"
  40
  41 #include "drivers/sensors/pn532/pn532.h"
  42 #include "drivers/sensors/pn532/pn532_drvr.h"
  43
  44 /**************************************************************************/
  45 /*!
  46     Main program entry point.  After reset, normal code execution will
  47     begin here.
  48
  49     Note: CFG_INTERFACE is normally enabled by default.  If you wish to
  50           enable the blinking LED code in main, you will need to open
  51           projectconfig.h, comment out "#define CFG_INTERFACE" and
  52           rebuild the project.
  53 */
  54 /**************************************************************************/
  55 int main (void)
  56 {
  57   #ifdef CFG_INTERFACE
  58     #error "CFG_INTERFACE must be disabled in projectconfig.h for this demo"
  59   #endif
  60   #if !defined CFG_PRINTF_USBCDC
  61     #error "CFG_PRINTF_USBCDC must be enabled in projectconfig.h for this demo"
  62   #endif
  63
  64   // Configure cpu and mandatory peripherals
  65   systemInit();
  66
  67   // Wait 5 second for someone to open the USB connection for printf
  68   systickDelay(5000);
  69
  70   // Initialise the PN532
  71   pn532Init();
  72
  73   byte_t response[256];
  74   size_t responseLen;
  75   pn532_error_t error;
  76
  77   // Setup command to initialise a single ISO14443A target at 106kbps
  78   byte_t abtCommand[] = { PN532_COMMAND_INLISTPASSIVETARGET, 0x01, PN532_MODULATION_ISO14443A_106KBPS };
  79
  80   while (1)
  81   {
  82     printf("%s", CFG_PRINTF_NEWLINE);
  83     printf("Waiting for an ISO14443A card (Mifare Classic, etc.)%s", CFG_PRINTF_NEWLINE);
  84
  85     // Send the command (and handle the most common errors)
  86     error = pn532Write(abtCommand, sizeof(abtCommand));
  87     if (error)
  88     {
  89       // Something went wrong sending the command (probably the bus selection or wiring)
  90       switch(error)
  91       {
  92         case (PN532_ERROR_NOACK):
  93           // No ACK frame received in UART mode (bus pins not set correctly?)
  94           printf("Ooops ... No ACK frame was received! Are the bus pins sets to UART?%s", CFG_PRINTF_NEWLINE);
  95           break;
  96         case (PN532_ERROR_I2C_NACK):
  97           // No ACK bit received to I2C start (bus pins not set correctly?)
  98           printf("Ooops ... No ACK bit received for I2C start! Are the bus pins sets to I2C?%s", CFG_PRINTF_NEWLINE);
  99           break;
 100         default:
 101           printf("Ooops ... something went wrong! [PN532 Error Code: 0x%02X]%s", error, CFG_PRINTF_NEWLINE);
 102           break;
 103       }
 104     }
 105     else
 106     {
 107       // Commmand seems to have gone through ...
 108       do
 109       {
 110         // Keep reading until we get a response or an unexpected error condition
 111         error = pn532Read(response, &responseLen);
 112         systickDelay(25);
 113       }
 114       while (error == PN532_ERROR_RESPONSEBUFFEREMPTY);
 115
 116       // Print the card details if possible
 117       if (!error)
 118       {
 119         /* Response for ISO14443A 106KBPS (Mifare Classic, etc.)
 120            See UM0701-02 section 7.3.5 for more information
 121
 122            byte            Description
 123            -------------   ------------------------------------------
 124            b7              Tags Found
 125            b8              Tag Number (only one used in this example)
 126            b9..10          SENS_RES
 127            b11             SEL_RES
 128            b12             NFCID Length
 129            b13..NFCIDLen   NFCID
 130
 131            SENS_RES   SEL_RES     Manufacturer/Card Type    NFCID Len
 132            --------   -------     -----------------------   ---------
 133            00 04      08          NXP Mifare Classic 1K     4 bytes   */
 134
 135         printf("%s", CFG_PRINTF_NEWLINE);
 136         printf("%-12s: %d %s", "Tags Found", response[7], CFG_PRINTF_NEWLINE);
 137         printf("%-12s: %02X %02X %s", "SENS_RES", response[9], response[10], CFG_PRINTF_NEWLINE);
 138         printf("%-12s: %02X %s", "SEL_RES", response[11], CFG_PRINTF_NEWLINE);
 139         printf("%-12s: ", "NFCID");
 140         size_t pos;
 141         for (pos=0; pos < response[12]; pos++)
 142         {
 143           printf("%02x ", response[13 + pos]);
 144         }
 145         printf(CFG_PRINTF_NEWLINE);
 146         if ((response[9] == 0x00) && (response[10] == 0x04) && (response[11] == 0x08))
 147         {
 148           printf("Seems to be a Mifare Classic 1K Card%s", CFG_PRINTF_NEWLINE);
 149         }
 150       }
 151       else
 152       {
 153         // Oops .... something bad happened.  Check 'error'
 154         printf("Ooops! Error %02X %s", error, CFG_PRINTF_NEWLINE);
 155       }
 156     }
 157
 158     // Wait at least one second before trying again
 159     systickDelay(1000);
 160   }
 161 }