/* tasked method which searches for new tasks in the field of the reader
* adds only distinct chips the the list of scanned tags */
private void Scanner()
{
while (Scanning)
{
try
{
var tagList = _reader.TagInventory(true, 0x00, 1);
Logger.GetInstance().Log("SC: Tagged Inventory");
if (tagList.Count > 0)
{
Logger.GetInstance().Log($"tagList.Count = {tagList.Count}");
var listTagHandler = tagList.Values;
foreach (FedmIscTagHandler th in listTagHandler)
{
if (th == null)
{
continue;
}
var tagHandler = th;
tagHandler = _reader.TagSelect(tagHandler, 0);
Logger.GetInstance().Log("SC: Called TagSelect");
if (!(tagHandler is FedmIscTagHandler_ISO15693))
{
continue;
}
var scannedTag = (FedmIscTagHandler_ISO15693)tagHandler;
lock (_scannedTags) // lock object because same list is used as return value in asynchronous main thread
{
if (!_scannedTags.ContainsKey(scannedTag.GetUid()))
{
_scannedTags.Add(scannedTag.GetUid(), scannedTag.ToString()); // info about tag gets saved into list if its not already inside
}
}
}
System.Threading.Thread.Sleep(100); // if tags could have been found, wait for 100 ms // TODO maybe switch with event based waking up
}
else
{
Logger.GetInstance().Log("SC: No Tags received");
System.Threading.Thread.Sleep(200); // if no tags could have been found, wait for 200 ms // TODO maybe switch with event based waking up
}
}
catch (Exception e)
{
Logger.GetInstance().Log("SC: --EXCEPTION caught while scanning: " + e.Message + e.GetType());
}
}
}
private void btnTagAction_Click(object sender, EventArgs e)
{
int back = 0;
uint BlockSize = 0;
byte[] Data = null;
byte[] respData = null;
Dictionary <string, FedmIscTagHandler> .ValueCollection listTagHandler;
if (!connected)
{
return;
}
listTagHandler = TagList.Values;
foreach (FedmIscTagHandler tag in listTagHandler)
{
if (tag is FedmIscTagHandler_ISO15693)
{
FedmIscTagHandler_ISO15693 newTag = (FedmIscTagHandler_ISO15693)tag;
Console.WriteLine(newTag.GetTagName());
// read data blocks and write same data back to tag
back = newTag.ReadMultipleBlocks((uint)4, (uint)4, out BlockSize, out Data);
back = newTag.WriteMultipleBlocks(4, 4, 4, Data);
}
else if (tag is FedmIscTagHandler_ISO14443)
{
FedmIscTagHandler newTag = null;
// execute a select command for MIFARE DESFire
// TagSelect creates a new TagHandler object internally
newTag = Reader.TagSelect(tag, 9);
if (newTag is FedmIscTagHandler_ISO14443_4_MIFARE_DESFire)
{
FedmIscTagHandler_ISO14443_4_MIFARE_DESFire desfireTag = (FedmIscTagHandler_ISO14443_4_MIFARE_DESFire)newTag;
Console.WriteLine(desfireTag.GetTagName());
// read version information
// use the internal Interface IFlexSoftCrypto
back = desfireTag.IFlexSoftCrypto.GetVersion((byte)0, out respData);
}
}
else if (tag is OBID.TagHandler.FedmIscTagHandler_EPC_Class1_Gen2)
{
FedmIscTagHandler_EPC_Class1_Gen2 newTag = (FedmIscTagHandler_EPC_Class1_Gen2)tag;
Console.WriteLine(newTag.GetTagName());
// write a new EPC number (without password)
back = newTag.WriteEPC("1102030405060708090A0B0C", "");
}
}
}
/* tasked method which searches for new tasks in the field of the reader
* adds only distinct chips the the list of scanned tags */
private void Scanner()
{
while (Scanning)
{
try
{
var tagList = _reader.TagInventory(true, 0x00, 1);
if (tagList.Count > 0)
{
Logger.GetInstance().Log($"tagList.Count = {tagList.Count}");
var listTagHandler = tagList.Values;
foreach (FedmIscTagHandler th in listTagHandler)
{
if (th == null)
{
continue;
}
FedmIscTagHandler tagHandler;
try
{
tagHandler = _reader.TagSelect(th, 0);
}
catch (Exception e)
{
Logger.GetInstance().Log("--Exception caught in SC: " + e.Message);
continue;
}
Logger.GetInstance().Log("SC: Called TagSelect");
// Check if the scanned tag is of the correct type
if (!(tagHandler is FedmIscTagHandler_ISO15693))
{
continue;
}
try
{
// Create TagData from tag
TagData scannedTag = FormatTagHandlerToTagData((FedmIscTagHandler_ISO15693)tagHandler);
lock (_scannedTags
) // lock object because same list is used as return value in asynchronous main thread
{
if (!_scannedTags.Contains(scannedTag))
{
_scannedTags
.Add(
scannedTag); // info about tag gets saved into list if its not already inside
OnNewTagScanned(scannedTag);
}
}
}
catch (Exception e)
{
Logger.GetInstance().Log("--Exception caught in SC: " + e.Message);
}
}
System.Threading.Thread.Sleep(100); // if tags could have been found, wait for 100 ms
}
else
{
System.Threading.Thread.Sleep(200); // if no tags could have been found, wait for 200 ms
}
}
catch (Exception e)
{
Logger.GetInstance().Log("SC: --EXCEPTION caught while scanning: " + e.Message + e.GetType());
}
}
}