mil1553_manyErrorInjections.cs

/*****************************************************************************
//
##    File:
##       mil1553_manyErrorInjections.cs
//
//       Copyright (c) MAX Technologies Inc. 1988-2019, All Rights Reserved.
//             CONFIDENTIAL AND PROPRIETARY INFORMATION WHICH IS THE 
//                         PROPERTY OF MAX TECHNOLOGIES INC. 
//
//      This example demonstrates how to inject the following errors :
//      - bit count error
//      - override error
//      - superseding error
//
//      The minor frame for this example is built as follows :
//      BC -> RT20 SA3    bit count error injection
//      RT20 SA3 -> BC    override error injection
//      RT10 SA3 -> BC    superseding error injection
//      BC -> RT10 SA3
//
//      The main thing in this example is that we followed the SAE specification for simulating a bus switching
//      with an override command followed by a superseding command.
//      As you will notice when receiving the data (console display), the 3rd command is then received on bus B.
//
//     Important to notice : the override error is on the bc side and we applied it on a RT-> BC command, so the 
//     BM will receive the 32 words because the data are sent by the RT and not the BC. If you setup an override
//     error on a BC-> RT command, you will receive only the number of words decided by your override (if you 
//     override after 8 words, you will only read 8 words of course).
//
//     We check the control to see if the errors are well simulated and display the information on the console 
//     after each command.
//
//     We setup the superseding command to be sent with a GAP of 4 bits after the override command. In 1553, 4
//     bits take 4 usec to be transmitted. That is why we check the timetags at the end of the program between
//     the 2 commands to see if there is actually a 4 usec difference.
//
//     When injecting an error on a RT-> BC command like we do in this example, you have to be careful with the
//     buffer handling. The RT data will be set with mxfMIL1553TxPeriodicUpdateMsgWrite() using a rt buffer
//     allocated before and the RT error injection will be set with mxfMIL1553TxPeriodicUpdateMsgWrite() using a
//     bc buffer also allocated at the beginning.
//
//       Hardware requirements:
//          - MAXT Flex1553-PCIe or FlexMulti or 500 series carrier with IPM-1553-MRT
//
*****************************************************************************/


#define LOOPBACK
#define LOCAL

using System;
using System.Text;
using System.Runtime.InteropServices;

using static MAXT.MXFoundation.mxf;


namespace mil1553_example
{
   public class mil1553_manyErrorInjections
   {
      const UInt32 BITCNT_SHIFT = 18;  //bit count error of +2 bits

      const UInt32 RT_ADRS = 20;
      const UInt32 RT_SUBADRS = 3;

      const UInt32 NB_BC_BUFFERS = 4;
      const UInt32 NB_RT_BUFFERS = 2;

      static void Main(string[] args)
      {
         UInt64 server;
         var device = new UInt64[1];
         var module = new UInt64[1];
         var bc = new UInt64[1];
         var bm = new UInt64[1];
         var rt = new UInt64[NB_RT_BUFFERS];
         var bcBufferTx = new UInt64[NB_BC_BUFFERS];
         UInt64 bmBufferRx = 0;
         var rtBuffer = new UInt64[NB_RT_BUFFERS];

         UInt32 txBufferSize = 0;
         IntPtr txBuffer = IntPtr.Zero;
         var txRec1553 = new MXF_MIL1553_DATAREC();
         txRec1553.data = new UInt16[36];

         UInt32 rxBufferSize = 0;
         IntPtr rxBuffer = IntPtr.Zero;
         var rxRec1553 = new MXF_MIL1553_DATAREC[1];

         var minorFrame = new MXF_MIL1553_TXPERIODIC_MJRFRAME_MSG[NB_BC_BUFFERS];
         var msgInfo = new MXF_MIL1553_MSGINFO[1];
         var err = new MXF_MIL1553_ERROR_INJ();
         err.errors = new UInt16[34];

         var errorString = new StringBuilder(200);

         UInt64 bus = MXF_MIL1553_BUS_A | MXF_MIL1553_BUS_B;
         UInt64 rxAcqStatus;
         UInt64 msgCount;
         UInt64 byteCount, freeBytes, pendingBytes, indexBuffer;
         UInt64 rxRec;
         UInt32 loop = 0;
         UInt64 address, subAddress, dir, wordCount;

         UInt64 deviceCount = 0;
         UInt64 moduleCount = 0;
         UInt64 channelCount = 0;
         UInt32 rc;

         var timetagArray = new UInt64[NB_BC_BUFFERS];
         UInt64 index = 0;

         // Connect to MX Foundation library
#if (LOCAL)
            rc = mxfServerConnect("0.0.0.0", "", "", Convert.ToUInt64(false), out server);
#else
         rc = mxfServerConnect("192.168.0.1", "admin", "admin", Convert.ToUInt64(false), out server);
#endif
         // Initialize MX Foundation library
         if (rc == MAXT_SUCCESS)
         {
            Console.Write("Starting ...\n\r");
            rc = mxfSystemInit(server);
         }

         // Get handle of first MIL-STD-1553 Bus controller channel
         if (rc == MAXT_SUCCESS)
            rc = mxfSystemDeviceAllGet(server, MXF_DEVICE_ALL, 1, out deviceCount, device);

         if (rc == MAXT_SUCCESS && deviceCount > 0)
         {
            rc = mxfDeviceModuleAllGet(device[0], MXF_MODULE_MIL1553MRT_EH, 1, out moduleCount, module);
            if (rc == MAXT_SUCCESS && moduleCount == 0)
               rc = mxfDeviceModuleAllGet(device[0], MXF_MODULE_MIL1553MRT, 1, out moduleCount, module);
         }

         if (rc == MAXT_SUCCESS && moduleCount > 0)
            rc = mxfModuleChannelAllGet(module[0], MXF_CLASS_MIL1553, MXF_SCLASS_BC_CHANNEL, 1, out channelCount, bc);

         if (rc == MAXT_SUCCESS && channelCount > 0)
            rc = mxfModuleChannelAllGet(module[0], MXF_CLASS_MIL1553, MXF_SCLASS_BM_CHANNEL, 1, out channelCount, bm);

         if (rc == MAXT_SUCCESS && channelCount == 0)
            rc = MAXT_ERROR_NOT_FOUND;

         // Get handle of MIL-STD-1553 remote terminal channels
         if (rc == MAXT_SUCCESS)
            rc = mxfModuleChannelGet(module[0], 2 + RT_ADRS, out rt[0]);
         if (rc == MAXT_SUCCESS)
            rc = mxfModuleChannelGet(module[0], 2 + (RT_ADRS - 10), out rt[1]);

#if LOOPBACK
         // Enable internal loopback
         if (rc == MAXT_SUCCESS)
            rc = mxfAttributeUint64Set(bc[0], KMXF_MIL1553_TX_RX_TEST_LB, VMXF_ENABLE);
#endif

         // Allocate 1KB buffer for tx data
         if (rc == MAXT_SUCCESS)
         {
            txBufferSize = 1024;

            // Allocate buffers and enable bus
            for (index = 0; index < NB_BC_BUFFERS && rc == MAXT_SUCCESS; index++)
            {
               rc = mxfTxPeriodicUpdateMsgBufferAlloc(bc[0], index, txBufferSize, out bcBufferTx[index], IntPtr.Zero);
            }

            for (index = 0; index < NB_RT_BUFFERS && rc == MAXT_SUCCESS; index++)
            {
               rc = mxfTxPeriodicUpdateMsgBufferAlloc(rt[index], index, txBufferSize, out rtBuffer[index], IntPtr.Zero);
               if (rc == MAXT_SUCCESS)
                  rc = mxfMIL1553RtSubsystemEnableSet(rt[index], MXF_MIL1553_MSGTYPE_RX, 3, bus, rtBuffer[index]);
               if (rc == MAXT_SUCCESS)
                  rc = mxfMIL1553RtSubsystemEnableSet(rt[index], MXF_MIL1553_MSGTYPE_TX, 3, bus, rtBuffer[index]);
            }
            // Host allocation
            if (rc == MAXT_SUCCESS)
            {
               try
               {
                  txBuffer = Marshal.AllocHGlobal((int)txBufferSize);
               }
               catch (OutOfMemoryException)
               {
                  rc = MAXT_ERROR_MEM;
               }
            }
         }

         // Allocate 10KB buffer for rx data
         if (rc == MAXT_SUCCESS)
         {
            rxBufferSize = 10 * 1024;

            // Device allocation
            rc = mxfRxAcqBufferAlloc(bm[0], rxBufferSize, out bmBufferRx, IntPtr.Zero);
            if (rc == MAXT_SUCCESS)
               rc = mxfRxAcqBufferStatusGet(bmBufferRx, out rxAcqStatus, out msgCount, out pendingBytes, out freeBytes);

            // Host allocation
            if (rc == MAXT_SUCCESS)
            {
               try
               {
                  rxBuffer = Marshal.AllocHGlobal((int)rxBufferSize);
               }
               catch (OutOfMemoryException)
               {
                  rc = MAXT_ERROR_MEM;
               }
            }
         }

         // Set timebase to RTC nsec
         if (rc == MAXT_SUCCESS)
            rc = mxfSystemTimeBaseSet(server, MXF_TIMEBASE_DEVICE_NSEC);

         // Configure injection #0, override error
         if (rc == MAXT_SUCCESS)
         {

            rc = mxfMIL1553ErrorInjectionCompose(MXF_MIL1553_ERRORID_OVERRIDE, 0x00, out err.errors[0]);
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553ErrorInjectionSet(bc[0], 0, ref err);
         }

         // Configure injection #1, bit count error
         if (rc == MAXT_SUCCESS)
         {
            rc = mxfMIL1553ErrorInjectionCompose(MXF_MIL1553_ERRORID_BITCNT, BITCNT_SHIFT, out err.errors[0]);
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553ErrorInjectionSet(bc[0], 1, ref err);
         }

         // Configure injection #2, superseding error
         if (rc == MAXT_SUCCESS)
         {
            rc = mxfMIL1553ErrorInjectionCompose(MXF_MIL1553_ERRORID_SUPERSEDING, 0, out err.errors[0]);
            if (rc == MAXT_SUCCESS)
            {
               err.errors[33] = 32; // 1/8 bits so it is equivalent to a 4 bits delay
               rc = mxfMIL1553ErrorInjectionSet(bc[0], 2, ref err);
            }
         }

         // Set the minor frame #0 using 2 Commands
         if (rc == MAXT_SUCCESS)
         {
            // Command #0 : Address 20, Subaddress 3, RX, 32 words. 
            rc = mxfMIL1553CommandCompose(RT_ADRS, RT_SUBADRS, MXF_MIL1553_MSGTYPE_RX, 0, out minorFrame[0].command); // specification : 0 means 32 words
            minorFrame[0].modulo = 1;
            minorFrame[0].buffer = bcBufferTx[0];
            minorFrame[0].retryHaltOptions = 0;

            // Command #1 : Address 20, Subaddress 3, TX, 32 words. 
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553CommandCompose(RT_ADRS, RT_SUBADRS, MXF_MIL1553_MSGTYPE_TX, 0, out minorFrame[1].command); // specification : 0 means 32 words
            minorFrame[1].modulo = 1;
            minorFrame[1].buffer = bcBufferTx[1];
            minorFrame[1].retryHaltOptions = 0;

            // Command #2 : Address 10, Subaddress 3, TX, 32 words. 
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553CommandCompose(RT_ADRS - 10, RT_SUBADRS, MXF_MIL1553_MSGTYPE_TX, 0, out minorFrame[2].command); // specification : 0 means 32 words
            minorFrame[2].modulo = 1;
            minorFrame[2].buffer = bcBufferTx[3];
            minorFrame[2].retryHaltOptions = 0;
            minorFrame[2].options = MXF_MIL1553_TXPERIODIC_MJRFRAME_MSG_OPT_BUS_B;

            // Command #3 : Address 10, Subaddress 3, RX, 32 words. 
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553CommandCompose(RT_ADRS - 10, RT_SUBADRS, MXF_MIL1553_MSGTYPE_RX, 0, out minorFrame[3].command); // specification : 0 means 32 words
            minorFrame[3].modulo = 1;
            minorFrame[3].buffer = bcBufferTx[2];
            minorFrame[3].retryHaltOptions = 0;

            if (rc == MAXT_SUCCESS)
            {
               var propertiesMinorFrame = new MXF_MIL1553_TXPERIODIC_MJRFRAME_MINOR_PROPERTIES();

               propertiesMinorFrame.repeatCount = 1;
               propertiesMinorFrame.modulo = 1;
               propertiesMinorFrame.options = MXF_MIL1553_TXPERIODIC_MJRFRAME_MINOR_PROPERTIES_OPT_BRANCH_END;
               rc = mxfMIL1553TxPeriodicMajorFrameSet(bc[0], 0, 0, 4, minorFrame, ref propertiesMinorFrame);
            }
         }

         // Set BC data for address 20, subaddress 3, RX
         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = MXF_MIL1553_TXPERIODIC_REC_CTRL_ERROR_INJ;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 1; // bit count error
            txRec1553.dataSize = 66; //66 bytes (command + 32 words)
            txRec1553.data[0] = 0x0000; //Not used
            for (index = 1; index < txRec1553.dataSize / 2; index++)
               txRec1553.data[index] = (UInt16)(0x0101 * (UInt16)index);

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(bcBufferTx[0], 1, txBuffer);
         }

         // Set RT data for address 20, subaddress 3, TX
         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = 0;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 0;
            txRec1553.dataSize = 66; //66 bytes (command + 32 words)
            txRec1553.data[0] = 0x0000; //Not used
            for (index = 1; index < txRec1553.dataSize / 2; index++)
               txRec1553.data[index] = (UInt16)(0x0101 * (UInt16)index);

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(rtBuffer[0], 1, txBuffer);
         }

         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = MXF_MIL1553_TXPERIODIC_REC_CTRL_ERROR_INJ;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 0; // override error
            txRec1553.dataSize = 0;
            for (index = 0; index < 36; index++)
               txRec1553.data[index] = 0;

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(bcBufferTx[1], 1, txBuffer);
         }

         // Set RT data for address 10, subaddress 3, TX
         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = 0;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 0;
            txRec1553.dataSize = 66; //66 bytes (command + 32 words)
            txRec1553.data[0] = 0x0000; //Not used
            for (index = 1; index < txRec1553.dataSize / 2; index++)
               txRec1553.data[index] = (UInt16)(0x0101 * (UInt16)index);

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(rtBuffer[1], 1, txBuffer);
         }

         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = MXF_MIL1553_TXPERIODIC_REC_CTRL_ERROR_INJ;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 2; // superseding error
            txRec1553.dataSize = 0;
            for (index = 0; index < 36; index++)
               txRec1553.data[index] = 0;

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(bcBufferTx[3], 1, txBuffer);
         }

         // Set BC data for address 10, subaddress 3, RX
         if (rc == MAXT_SUCCESS)
         {
            txRec1553.repeatCount = 1;
            txRec1553.control = 0;
            txRec1553.service.txPeriodicUpdateMsg.errorIndex = 0;
            txRec1553.dataSize = 66; //66 bytes (command + 32 words)
            txRec1553.data[0] = 0x0000; //Not used
            for (index = 1; index < txRec1553.dataSize / 2; index++)
               txRec1553.data[index] = (UInt16)(0x0101 * (UInt16)index);

            Marshal.StructureToPtr(txRec1553, txBuffer, true);

            rc = mxfMIL1553TxPeriodicUpdateMsgWrite(bcBufferTx[2], 1, txBuffer);
         }

         // Start messages queues
         if (rc == MAXT_SUCCESS)
         {
            Console.Write("Starting BC - RT\n\r");
            rc = mxfMIL1553RtEnableSet(rt[0], VMXF_ENABLE);
            if (rc == MAXT_SUCCESS)
               rc = mxfMIL1553RtEnableSet(rt[1], VMXF_ENABLE);
         }

         // Start BM acquisition
         if (rc == MAXT_SUCCESS)
            rc = mxfRxAcqStart(bmBufferRx, MXF_RXACQ_FLAG_DEFAULT, 0, 0);

         // Start the major frame with 250 msec rate
         if (rc == MAXT_SUCCESS)
            rc = mxfMIL1553TxPeriodicMajorFrameStart(bc[0], 0, 250000000, IntPtr.Zero);

         // Read and display received messages
         if (rc == MAXT_SUCCESS)
         {
            IntPtr recPtr = IntPtr.Zero;
            do
            {
               rc = mxfMIL1553RxAcqRead(bmBufferRx, 0, rxBufferSize, out rxAcqStatus, out msgCount, out byteCount, rxBuffer);
               if (rc != MAXT_SUCCESS)
                  Console.Write("mxfMIL1553RxAcqRead() error; rc={0:x8}", rc);

               recPtr = rxBuffer;
               for (rxRec = 0; rxRec < msgCount && rc == MAXT_SUCCESS; rxRec++)
               {
                  rxRec1553[0] = (MXF_MIL1553_DATAREC)Marshal.PtrToStructure(recPtr, typeof(MXF_MIL1553_DATAREC));

                  rc = mxfMIL1553DataRecordDecompose(bm[0], 1, rxRec1553, msgInfo);

                  if (rc == MAXT_SUCCESS)
                  {
                     rc = mxfMIL1553CommandDecompose(rxRec1553[0].data[0], out address, out subAddress, out dir, out wordCount);
                     if (rc == MAXT_SUCCESS)
                     {
                        Console.Write("\n\r{0}:\t", rxRec1553[0].timeTag);
                        timetagArray[rxRec] = rxRec1553[0].timeTag;
                        switch (msgInfo[0].msgType)
                        {
                           case MXF_MIL1553_MSGINFO_TYPE_BCRT:
                              Console.Write("BC to RT{0} SA{1} WC{2} DataSize : {3} Bus{4} (0x{5:x4}) Control : 0x{6:x8}\n\r", address, subAddress, wordCount, (rxRec1553[0].dataSize / 2) - 2, (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_BUS_B) > 0 ? "B" : "A", rxRec1553[0].data[0], rxRec1553[0].control);
                              Console.Write("\t\tParity {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_PARITY_ERROR) > 0 ? "Error" : "OK");
                              Console.Write("\t\tData length {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_DATA_LENGTH_ERROR) > 0 ? "Error" : "OK");
                              Console.Write("\t\tBit Count {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_EXTRA_BIT_ERROR) > 0 ? "Error" : "OK");
                              break;

                           case MXF_MIL1553_MSGINFO_TYPE_RTBC:
                              Console.Write("RT{0} SA{1} to BC WC{2} DataSize : {3} Bus{4} (0x{5:x4}) Control : 0x{6:x8}\n\r", address, subAddress, wordCount, (rxRec1553[0].dataSize / 2) - 2, (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_BUS_B) > 0 ? "B" : "A", rxRec1553[0].data[0], rxRec1553[0].control);
                              Console.Write("\t\tParity {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_PARITY_ERROR) > 0 ? "Error" : "OK");
                              Console.Write("\t\tData length {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_DATA_LENGTH_ERROR) > 0 ? "Error" : "OK");
                              Console.Write("\t\tBit Count {0}\n\r", (rxRec1553[0].control & MXF_MIL1553_RX_REC_CTRL_MSG_EXTRA_BIT_ERROR) > 0 ? "Error" : "OK");
                              break;
                        }
                     }
                  }
                  // Get next msg
                  rc = mxfMIL1553NextDataRecordPtrGet(recPtr, out recPtr);
               }
               mxfSleep(500);
               loop++;
            } while (loop < 10);
         }

         // Stop acquisition
         if (rc == MAXT_SUCCESS)
         {
            rc = mxfRxAcqStop(bmBufferRx);
            if (rc == MAXT_SUCCESS)
               rc = mxfRxAcqClear(bmBufferRx);
         }

         // Stop the major frame
         if (rc == MAXT_SUCCESS)
         {
            Console.Write("\nStopping BC - RT\n\r");
            rc = mxfTxPeriodicMajorFrameStop(bc[0], 0, 0);
         }

         if (rc == MAXT_SUCCESS)
            rc = mxfMIL1553RtEnableSet(rt[0], VMXF_DISABLE);
         if (rc == MAXT_SUCCESS)
            rc = mxfMIL1553RtEnableSet(rt[1], VMXF_DISABLE);

         //Displays if we have the wanted gap of 4 microseconds between the command with the override and the command with the superseding error
         Console.Write("Timetag Diff between RT20 SA3 -> BC and RT10 SA3 -> BC : {0} usec\n", (timetagArray[2] - timetagArray[1]) / 1000);

         // Free buffers
         if (txBuffer != IntPtr.Zero)
            Marshal.FreeHGlobal(txBuffer);

         if (rxBuffer != IntPtr.Zero)
            Marshal.FreeHGlobal(rxBuffer);

         // Display any previous errors
         if (rc != MAXT_SUCCESS)
         {
            if (mxfSystemErrorStringGet(server, rc, (UInt32)errorString.Capacity, errorString) != MAXT_SUCCESS)
            {
               errorString.Clear();
               errorString.Append(string.Format("ERROR # 0x{0:x8}", rc));
            }
            Console.Write(errorString + "\n\r");
         }

         // Free all buffers and terminate
         for (indexBuffer = 0; indexBuffer < 1 && bcBufferTx[indexBuffer] > 0; indexBuffer++)
         {
            if (bcBufferTx[indexBuffer] != 0)
            {
                rc = mxfTxPeriodicUpdateMsgBufferFree(bcBufferTx[indexBuffer]);
                if (rc != MAXT_SUCCESS)
                    Console.Write("Free buffer failed !\n\r");
            }
         }


         for (indexBuffer = 0; indexBuffer < 1 && rtBuffer[indexBuffer] > 0; indexBuffer++)
         {
            if (rtBuffer[indexBuffer] != 0)
            {
                rc = mxfTxPeriodicUpdateMsgBufferFree(rtBuffer[indexBuffer]);
                if (rc != MAXT_SUCCESS)
                    Console.Write("Free buffer failed !\n\r");
            }
         }

         if (bmBufferRx > 0)
         {
            rc = mxfRxAcqBufferFree(bmBufferRx);
            if (rc != MAXT_SUCCESS)
               Console.Write("Free buffer failed !\n\r");
         }

         // Unload MX Foundation library
         mxfSystemTerminate(server);
         mxfServerDisconnect(server);

         Console.Write("\n\rPress enter to terminate\n\r");
         Console.ReadKey();

         return;
      }
   }
}