public ErrorCode InquiryCard(ref string SerialNo)
{
if (!_Active) return ErrorCode.DeviceNoOpen;
try
{
//生成寻卡待发命令
byte[] send = new byte[6];
send[0] = 0xFE;
send[1] = 0x05;
send[2] = 0x10;
send[3] = 0x52;
//计算检校位
byte[] CrcByteData = new byte[3];
Array.Copy(send, 1, CrcByteData, 0, CrcByteData.Length);
int cRc16 = CRC_16.GetCRC_16(CrcByteData);
//取出高8位和低8位
byte _sendHight = HiByte(cRc16);
byte _sendLower = LoByte(cRc16);
send[4] = _sendHight;
send[5] = _sendLower;
//发送命令
_SerialPort.Write(send, 0, send.Length);
//接收命令
byte[] receivedata = GetPortStream(7);
//根据协议比对询卡是否成功
if (receivedata[2] == 0x00)//如果寻卡成功
{
/* *********************
* 寻卡成功后则获取卡号*
***********************/
//生成获取卡号待发命令
byte[] send1 = new byte[7];
send1[0] = 0xFE;
send1[1] = 0x06;
send1[2] = 0x11;
send1[3] = 0x93;
send1[4] = 0x00;
//计算检校位
byte[] CrcByteData1 = new byte[4];
Array.Copy(send1, 1, CrcByteData1, 0, CrcByteData1.Length);
int cRc16_1 = CRC_16.GetCRC_16(CrcByteData1);
//取出高8位和低8位
byte _sendHight1 = HiByte(cRc16_1);
byte _sendLower1 = LoByte(cRc16_1);
send1[5] = _sendHight1;
send1[6] = _sendLower1;
//发送命令
_SerialPort.Write(send1, 0, send1.Length);
//接收命令
byte[] receivedata1 = GetPortStream(9);
//根据协议比对询卡是否成功
if (receivedata1[2] == 0x00)//如果获取卡号成功
{
Array.Copy(receivedata1, 3, _CardNumbers, 0, _CardNumbers.Length);
SerialNo = ByteArrayToHexString(_CardNumbers);
/* ***********************
* 获取卡号成功后则选中卡*
*************************/
//生成选中卡待发命令
byte[] send2 = new byte[10];
send2[0] = 0xFE;
send2[1] = 0x09;
send2[2] = 0x13;
send2[3] = 0x93;
send2[4] = _CardNumbers[0];
send2[5] = _CardNumbers[1];
send2[6] = _CardNumbers[2];
send2[7] = _CardNumbers[3];
//计算检校位
byte[] CrcByteData2 = new byte[7];
Array.Copy(send2, 1, CrcByteData2, 0, CrcByteData2.Length);
int cRc16_2 = CRC_16.GetCRC_16(CrcByteData2);
//取出高8位和低8位
byte _sendHight2 = HiByte(cRc16_2);
byte _sendLower2 = LoByte(cRc16_2);
send2[8] = _sendHight2;
send2[9] = _sendLower2;
//发送命令
_SerialPort.Write(send2, 0, send2.Length);
//接收命令
byte[] receivedata2 = GetPortStream(6);
//根据协议比对询卡是否成功
if (receivedata2[2] == 0x00)
{
return ErrorCode.Success;
}
}
}
else if (receivedata[2] == 0xFF)
{
return ErrorCode.Fail;
}
else
{
return ErrorCode.PacketLoss;
}
}
catch
{
return ErrorCode.Abnormal;
}
}
