DE2_115 Board not respond to ping request

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Then I suspect a bug in your software when it recovers RS422 data. Try to run it with the debugger.

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Porting the Design on Altera ESDK board remoev Re-initilization problem so now i port design on Altera ESDK board.

Below is the Code Which i use for reading data from RS422 module. and you are write adding this peace of code create problem. like not responding to ping request once it receive data etc.

# define     PktSize    640# define     PktCount      460
void SSSSimpleSocketServerTask()
{
    unsigned int    LPktCount    =    0;
    unsigned int    Count        =    0;
    unsigned int    DataCount     =    0;
//--------------------------Receive From RS-422 Port @ 1 mbps-------------------------------------------
printf("\n\t\t----Ready to Receive Synchronous Data----\n");
while(1)
        {
            Count = 0;
              LPktCount = 0;
              edge_capture = 0;
            do
              {
             if(edge_capture)
              {
              edge_capture = 0;                    //Clear Interrupt
              IOWR_ALTERA_AVALON_PIO_DATA(TEMP_OUT_BASE,1);                                //Send High to Test Pin TEMP_OUT
              ImgBuff = IORD_ALTERA_AVALON_PIO_DATA(DATA_BASE);    //Read Data from RS422 Port
              Count++;
              }
                  if(Count == PktSize)    //check end of packet-data
                  {
                  Count = 0;            //Point to Start of packet data
                  LPktCount++;        //Increment packet Count
                  }
              IOWR_ALTERA_AVALON_PIO_DATA(TEMP_OUT_BASE,0);                    //Send LOW to Test Pin TEMP_OUT
             }while(LPktCount != (PktCount-1));
        }
}