AN3224 datasheet(41/49 Pages) STMICROELECTRONICS

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AN3224

RF ISO 15693 Transparent commands

Doc ID 17559 Rev 2

41/49

' RF WRITE REQUEST RESULT

' if(lngStatus = 0) then PASS else FAIL

' if (lngRespDataLen = 0) then No transponder answer

' else strRespData contains the transponder answer

If (lngRespDataLen = 0) Then

WriteSingleBlockRF = False

‘txtWriteRF_answer.Text = "No detected Tag answer"

Else

If (Mid(strRespData, 1, 2) = "00") Then

WriteSingleBlockRF = True

‘txtWriteRF_answer.Text = strRespData & " = write single

block OK"

Else

WriteSingleBlockRF = False

‘txtWriteRF_answer.Text = strRespData & " = Error code"

End If

End Function

6.3.2

Transparent Write single block command

C/C++ source code example

int WriteSingleBlockRF (void)

{

int entry3;

int i;

int iRspLength=0x18;

int iReqLen,iRspLen,iResult;

unsigned char

sReqData[32]={0};

unsigned char

sRspData[32]={0};

/* RF WRITE SINGLE BLOCK request format*/

/* FEIG reader parameters : 021F*/

/* Flag : 0A

/* RF Write command : 21*/

/* address : 01FA

(note: send FA01 = LSB BYTE first) */

/* Data : 01020304*/

/* request = 021F + 0A21FA0101020304*/

sReqData[0] = (UCHAR)0x02;

sReqData[1] = (UCHAR)0x1F;

sReqData[2] = (UCHAR)0x0A;

sReqData[3] = (UCHAR)0x21;

sReqData[4] = Address_parameter[1];/* ex: 0x01FA -> FA 01 to be

sent */

sReqData[5] = Address_parameter[0];

sReqData[6] = Data_parameter[0];

sReqData[7] = Data_parameter[1];

sReqData[8] = Data_parameter[2];

sReqData[9] = Data_parameter[3];

iReqLen = 10; /* (number of characters :param=2 in request) */

printf("\n\n\n\n");

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