AS3955 datasheet(93/111 Pages) AMSCO

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ams Datasheet

Page 93

[v1-01] 2015-Apr-29

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AS3955 − Application Information

Select, ReadBinary and UpdateBInary APDUs (ISO/IEC 7816-4),

NDEF management

//NDEF application AID

static const u8 ndefAppAID[] ={0xd2, 0x76, 0x00, 0x00, 0x85, 0x01, 0x01};

#define NDEF_MSG_MAX_LENGTH

0x0204

/*!< NDEF message maximum length */

#define NDEF_CCF_MAX_LENGTH

0x0F

/*!< NDEF message maximum length */

u8 ndefMessageFile[NDEF_MSG_MAX_LENGTH] =

{

0x00, 0x31,

//NLEN

0xd1,

//mb=1 me=1 cf=0 sr=1 il=0 tnf=001

0x01,

//type length = 1 byte

0x2d,

//payload length 45 bytes

0x55,

//type 'U'

//payload: ams.com/eng/Products/RF-Products/RFID/AS3953, below the bytes

0x01, //uri identifier code 0x01 means prepending http://www. - 5 bytes so far

0x61, 0x6d, 0x73, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x65, 0x6e, 0x67, 0x2f, //12

0x50, 0x72, 0x6f, 0x64, 0x75, 0x63, 0x74, 0x73, 0x2f, 0x52, 0x46, 0x2d, //12

0x50, 0x72, 0x6f, 0x64, 0x75, 0x63, 0x74, 0x73, 0x2f, 0x52, 0x46, 0x49, //12

0x44, 0x2f, 0x41, 0x53, 0x33, 0x39, 0x35, 0x33, //8

0xFE,//1

};

#define RXTX_BUFFER_SIZE

256

u8 ndefFileReadCount = 0;

u8 * filePtr = NULL;

BOOL ndefInitDone = FALSE;

u8 ndefCcFile[NDEF_CCF_MAX_LENGTH] =

{

0x00, 0x0F, 0x20, 0x00, 0x1C, 0x00, 0x1A, 0x04,

0x06, 0xE1, 0x04, (u8)(0x0204 >> 8), (u8)(0x0204), 0x00, 0x00,

};

s8 nfcTagAppProcessAPDU(int dllInHeaderSize)

{

s8 err = ERR_NONE;

u8 * rxPtr = &rxBuffer.data[dllInHeaderSize];

if (*(rxPtr) == 0x00)

{

txBuffer.size = dllInHeaderSize + 2;

rxPtr += 1;

switch (*rxPtr)

{

case C_APDU_SELECT_CMD:

//select command detected -> check what should be selected

switch (*(rxPtr + 1))

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