Impinj

Functions
RFID_STATUS WINAPI	RFID_ImpinjQTWrite (RFID_HANDLE32 readerHandle, UINT8 *pTagID, UINT32 tagIDLength, LPIMPINJ_QT_WRITE_PARAMS lpQTWriteParams, LPACCESS_FILTER lpAccessFilter, LPANTENNA_INFO lpAntennaInfo, LPVOID rsvd)
	This function writes the QT data to Impinj Monza QT tags. More...
RFID_STATUS WINAPI	RFID_ImpinjQTRead (RFID_HANDLE32 readerHandle, UINT8 *pTagID, UINT32 tagIDLength, LPIMPINJ_QT_READ_PARMS lpQTReadParams, LPACCESS_FILTER lpAccessFilter, LPANTENNA_INFO lpAntennaInfo, LPTAG_DATA lpTagData, LPVOID rsvd)
	This function read the QT data from Impinj Monza QT tags. More...

Detailed Description

Function Documentation

RFID_ImpinjQTWrite()

RFID_STATUS WINAPI RFID_ImpinjQTWrite	(	RFID_HANDLE32	readerHandle,
		UINT8 *	pTagID,
		UINT32	tagIDLength,
		LPIMPINJ_QT_WRITE_PARAMS	lpQTWriteParams,
		LPACCESS_FILTER	lpAccessFilter,
		LPANTENNA_INFO	lpAntennaInfo,
		LPVOID	rsvd
	)

This function writes the QT data to Impinj Monza QT tags.

Parameters

[in]	readerHandle	Handle to the RFID device.
[in]	pTagID	Pointer to the byte array containing Tag ID
[in]	tagIDLength	Length of the byte array containing Tag ID
[in]	lpQTWriteParams	Pointer to LPIMPINJ_QT_WRITE_PARAMS structure containing the QT Data
[in]	lpAccessFilter	Pointer to Access filter structure specifying the tag-filter criteria for the current Access operation
[in]	lpAntennaInfo	Pointer to ANTENNA_INFO structure specifying the Antenna IDs on which the access operation is to be performed
[in]	rsvd	Reserved for future use

Returns

If the function succeeds the return value is RFID_API_SUCCESS. If the function fails the return value is one of the following:

• RFID_API_INVALID_HANDLE Handle provided is invalid
• RFID_API_PARAM_ERROR Parameter is invalid.
• RFID_ACCESS_IMPINJ_QT_WRITE_FAILED QT Write Operation Failed

Remarks

See also

See RFID_ImpinjQTRead

Remarks

Example:

// Code Snippets for QT Data Write
RFID_HANDLE32           readerHandle;
RFID_STATUS rfidStatus = RFID_API_SUCCESS;
CONNECTION_INFO         connectionInfo;
connectionInfo.version = RFID_API3_5_1;
if(RFID_API_SUCCESS == RFID_Connect(&readerHandle, TEXT("157.235.207.191"), 0, 0, &connectionInfo))
{
// Perform Inventory to get the tags
RFID_PerformInventory(readerHandle, NULL, ANTENNA_LIST, NULL, NULL);
Sleep(300);
RFID_StopInventory(GOOD_HANDLE);
 
IMPINJ_QT_DATA qtData;
// Short range is FALSE and MemoryMap is TRUE
// Set 0x00 to set Short_range: FALSE and MemoryMap:FALSE
// Set 0x4000 to set Short_range: FALSE and MemoryMap:TRUE
qtData.QTControlData = 0x4000;
 
IMPINJ_QT_WRITE_PARAMS impinjQtParams;
impinjQtParams.accessPassword   = 0x00;
impinjQtParams.QTPersist        = TRUE;
impinjQtParams.qtdata           = qtData;
 
// Apply QT Write in each of the tags read
while (RFID_GetReadTag(readerHandle, pTagData) == RFID_API_SUCCESS)
{
TagIDLength = pTagData->tagIDLength;
memcpy(TagID, pTagData->pTagID, TagIDLength);
rfidStatus = RFID_ImpinjQTWrite(readerHandle, TagID, TagIDLength, &impinjQtParams,NULL,NULL,NULL);
 
}
}

RFID_ImpinjQTRead()

RFID_STATUS WINAPI RFID_ImpinjQTRead	(	RFID_HANDLE32	readerHandle,
		UINT8 *	pTagID,
		UINT32	tagIDLength,
		LPIMPINJ_QT_READ_PARMS	lpQTReadParams,
		LPACCESS_FILTER	lpAccessFilter,
		LPANTENNA_INFO	lpAntennaInfo,
		LPTAG_DATA	lpTagData,
		LPVOID	rsvd
	)

This function read the QT data from Impinj Monza QT tags.

Parameters

[in]	readerHandle	Handle to the RFID device.
[in]	pTagID	Pointer to the byte array containing Tag ID
[in]	tagIDLength	Length of the byte array containing Tag ID
[in]	lpQTReadParams	Pointer to LPIMPINJ_QT_READ_PARMS structure containing the QT Data
[in]	lpAccessFilter	Pointer to Access filter structure specifying the tag-filter criteria for the current Access operation
[in]	lpAntennaInfo	Pointer to ANTENNA_INFO structure specifying the Antenna IDs on which the access operation is to be performed
[in]	lpTagData	Pointer to TAG_DATA structure
[in]	rsvd	Reserved for future use

Returns

If the function succeeds the return value is RFID_API_SUCCESS. If the function fails the return value is one of the following:

• RFID_API_INVALID_HANDLE Handle provided is invalid
• RFID_API_PARAM_ERROR Parameter is invalid.
• RFID_ACCESS_IMPINJ_QT_READ_FAILED QT Read failed

Remarks

See also

See RFID_ImpinjQTWrite

Remarks

Example:

// Code Snippets for QT Data Write
RFID_HANDLE32           readerHandle;
RFID_STATUS rfidStatus = RFID_API_SUCCESS;
CONNECTION_INFO         connectionInfo;
connectionInfo.version = RFID_API3_5_1;
if(RFID_API_SUCCESS == RFID_Connect(&readerHandle, TEXT("157.235.207.191"), 0, 0, &connectionInfo))
{
// Perform Inventory to get the tags
RFID_PerformInventory(readerHandle, NULL, ANTENNA_LIST, NULL, NULL);
Sleep(300);
RFID_StopInventory(readerHandle);
 
IMPINJ_QT_DATA qtData;
 
IMPINJ_QT_READ_PARMS impinjQtReadParams;
impinjQtReadParams.accessPassword   = 0x00;
 
// Apply QT READ in each of the tags read
while (RFID_GetReadTag(readerHandle, pTagData) == RFID_API_SUCCESS)
{
TagIDLength = pTagData->tagIDLength;
memcpy(TagID, pTagData->pTagID, TagIDLength);
rfidStatus = RFID_ImpinjQTRead(readerHandle, TagID, TagIDLength, &impinjQtReadParams,NULL,NULL,lpTagData, NULL);
}
}