AN3224 datasheet(36/49 Pages) STMICROELECTRONICS

36 / 49 page

RF ISO 15693 Transparent commands

AN3224

36/49

Doc ID 17559 Rev 2

6.2.1

Transparent Read single block command

Visual Basic source code example

Private Function RFReadsingleBlock() As Boolean

Dim strReqData As String

Dim lngReqDataLen As Long

Dim lngRspLength As Long

Dim strRespData As String * 512 ' has to be formatted

Dim lngRespDataLen As Long

Dim lngStatus As Long

'init display

‘txtReadRF_answer.Text = ""

‘txtReadData.Text = ""

lngRspLength = &H38 'response length (Feig USB Reader)

' RF READ SINGLE BLOCK request

' FEIG reader parameters 0X021F

' Flag

0x0A

' RF Read command 0X20

' Address 0x01FA : send FA01

strReqData = "021F0A20FA01"

lngReqDataLen = Len(strReqData)

' SEND COMMAND IN transparent mode

lngStatus = _

FEISC_0xBF_ISOTranspCmd(lngAttachedDeviceHandle(0), &HFF, _

&H1, lngRspLength, _

strReqData, lngReqDataLen, _

strRespData, lngRespDataLen, _

Table 18.

Example of Read single block command in C/C++

FEISC_0xBF_ISOTranspCmd parameters

Parameters

IFeiscHandle: USB Handle

0xFF: Communication address

1: Read mode

iRspLength: 0x38

sRqData:

021F: Reader parameter

0A: RF protocol flag request

20: RF ISO 15693 Read single block command

FA01: address 0x01FA

iReqLen: 6

sRspData: answer from Transponder (if any)

lRspLen: size of sRspData

N: 2 (data expressed in hexadecimal bytes)

Returned value

Error code

Example

iResult = FEISC_0xBF_ISOTranspCmd(iFeiscHandle, 0xFF,

1, iRspLength,’021F0A20FA01’, iReqLen,

&sRspData[0],&iRspLen, 2);

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