跪求解决。顶着有分

Question

ss_port.Write(Encoding.ASCII.GetBytes("AT+CSCA?\r"));//获取手机短信中心号
string centerNumber = Encoding.ASCII.GetString(ss_port.Read(128));//第一次循环结果为AT+CSCA?+CSCA: "[phone]",145 OK//这确
if (centerNumber.Length > 0)
{
  centerNumber = centerNumber.Substring(20, 13);
}
string decodedSMS = sms.smsDecodedsms(centerNumber, phoneNumber, content);//第一次循环结果0891683110100805F011000D91683105238054F2000800046D4B8BD5//正确
byte[] buf = Encoding.ASCII.GetBytes(String.Format("AT+CMGS={0}\r", sms.nLength));
ss_port.Write(buf);
string response = Encoding.ASCII.GetString(ss_port.Read(128));
if (response.Length > 0 && response.EndsWith("> "))
{
  ss_port.Write(Encoding.ASCII.GetBytes(String.Format("{0}\x01a", decodedSMS)));
  SendState = true;
}第二次获取中心号码结果：string centerNumber=0891683110100805F011000D91683105238054F2000800046D4B8BD5 ERROR AT+CSCA? +CSCA: "[phone]",145 OK好像是第一次的内容加上AT指令+发回结果了。这是什么问题。。在线等。。

Answer 1

第二次出错误了?
返回值里有ERROR. 

Answer 2

public void Open()
        {
            DCB dcbCommPort = new DCB();
            COMMTIMEOUTS ctoCommPort = new COMMTIMEOUTS();
            // 打开串口 OPEN THE COMM PORT.
            hComm = CreateFile(PortNum, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
            // 如果串口没有打开，就打开 IF THE PORT CANNOT BE OPENED, BAIL OUT.
            if (hComm == INVALID_HANDLE_VALUE)
            {
                throw (new ApplicationException("非法操作，不能打开串口！"));
            }
            // 设置通信超时时间 SET THE COMM TIMEOUTS.
            GetCommTimeouts(hComm, ref ctoCommPort);
            ctoCommPort.ReadTotalTimeoutConstant = ReadTimeout;
            ctoCommPort.ReadTotalTimeoutMultiplier = 0;
            ctoCommPort.WriteTotalTimeoutMultiplier = 0;
            ctoCommPort.WriteTotalTimeoutConstant = 0;
            SetCommTimeouts(hComm, ref ctoCommPort);
            // 设置串口 SET BAUD RATE, PARITY, WORD SIZE, AND STOP BITS.
            GetCommState(hComm, ref dcbCommPort);
            //dcbCommPort.fOutxCtsFlow = 524800;
            dcbCommPort.BaudRate = BaudRate;
            dcbCommPort.flags = 0;
            //dcb.fBinary=1;
            dcbCommPort.flags |= 1;
            if (Parity > 0)
            {
                //dcb.fParity=1
                dcbCommPort.flags |= 2;
            }
            dcbCommPort.Parity = Parity;
            dcbCommPort.ByteSize = ByteSize;
            dcbCommPort.StopBits = StopBits;
            if (!SetCommState(hComm, ref dcbCommPort))
            {
                CloseHandle(hComm);
                throw (new ApplicationException("非法操作，不能打开串口！"));
            }
            Opened = true;
        }//dcbCommPort.fOutxCtsFlow = 524800;一开始是没有这句的。但没有这句获取不到中心号码，需要用别的出口工具打开一下再关闭才能获取到。发送正常。但加了这句了就出问题了

Answer 3

string response = Encoding.ASCII.GetString(ss_port.Read(128));

Answer 4

ss_port.Write(Encoding.ASCII.GetBytes("AT+CSCA?\r"));//获取手机短信中心号
string centerNumber = Encoding.ASCII.GetString(ss_port.Read(128));
if (centerNumber.Length > 0)
{
  centerNumber = centerNumber.Substring(20, 13);
}
string decodedSMS = sms.smsDecodedsms(centerNumber, phoneNumber, content);
byte[] buf = Encoding.ASCII.GetBytes(String.Format("AT+CMGS={0}\r", sms.nLength));
ss_port.Write(buf);
string response = Encoding.ASCII.GetString(ss_port.Read(128));
if (response.Length > 0 && response.EndsWith("> "))
{
  ss_port.Write(Encoding.ASCII.GetBytes(String.Format("{0}\x01a", decodedSMS)));
  SendState = true;
}

Answer 5

public void Open()
  {
  DCB dcbCommPort = new DCB();
  COMMTIMEOUTS ctoCommPort = new COMMTIMEOUTS();
  // 打开串口 OPEN THE COMM PORT.
  hComm = CreateFile(PortNum, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
  // 如果串口没有打开，就打开 IF THE PORT CANNOT BE OPENED, BAIL OUT.
  if (hComm == INVALID_HANDLE_VALUE)
  {
  throw (new ApplicationException("非法操作，不能打开串口！"));
  }
  // 设置通信超时时间 SET THE COMM TIMEOUTS.
  GetCommTimeouts(hComm, ref ctoCommPort);
  ctoCommPort.ReadTotalTimeoutConstant = ReadTimeout;
  ctoCommPort.ReadTotalTimeoutMultiplier = 0;
  ctoCommPort.WriteTotalTimeoutMultiplier = 0;
  ctoCommPort.WriteTotalTimeoutConstant = 0;
  SetCommTimeouts(hComm, ref ctoCommPort);
  // 设置串口 SET BAUD RATE, PARITY, WORD SIZE, AND STOP BITS.
  GetCommState(hComm, ref dcbCommPort);
  dcbCommPort.fOutxCtsFlow = 524800;
  dcbCommPort.BaudRate = BaudRate;
  dcbCommPort.flags = 0;
  dcbCommPort.flags |= 1;
  if (Parity > 0)
  {
  dcbCommPort.flags |= 2;
  }
  dcbCommPort.Parity = Parity;
  dcbCommPort.ByteSize = ByteSize;
  dcbCommPort.StopBits = StopBits;
  if (!SetCommState(hComm, ref dcbCommPort))
  {
  CloseHandle(hComm);
  throw (new ApplicationException("非法操作，不能打开串口！"));
  }
  Opened = true;
  }