if (pCDC.IsConfigured(&pCDC)) {
#ifndef USART_COM
        // Loop
       length = pCDC.Read(&pCDC, data, MSG_SIZE);
       pCDC.Write(&pCDC, data, length);
....

char data;
while(1);
  {
  if (pCDC.IsConfigured(&pCDC))
     {
     length = pCDC.Read(&pCDC, data,1);
     if(!length) continue; // если ошибка
     if(data == 1)
         {
         LED_ON();
         }
    else LED_OFF();
    data = 0xff;   //подтверждаем
    pCDC.Write(&pCDC, data, 1);
     }}

    PipeIn.Initialize(m_Lower, 82, 64);    
    PipeOut.Initialize(m_Lower, 1, 64);    
// заменил на
    PipeIn.Initialize(m_Lower, 0x82, 64);    
    PipeOut.Initialize(m_Lower, 0x01, 64);

Windows XP Kernel Version 2600 UP Free x86 compatible
Built by: 2600.xpsp_sp2_gdr.050301-1519
Kernel base = 0x804d7000 PsLoadedModuleList = 0x8055a420

*** Fatal System Error: 0x000000d1
                       (0x00000000,0x00000002,0x00000001,0xF9C6B67D)

Break instruction exception - code 80000003 (first chance)

A fatal system error has occurred.
Debugger entered on first try; Bugcheck callbacks have not been invoked.

A fatal system error has occurred.

*********************************************************************
* Symbols can not be loaded because symbol path is not initialized. *
*                                                                   *
* The Symbol Path can be set by:                                    *
*   using the _NT_SYMBOL_PATH environment variable.                 *
*   using the -y <symbol_path> argument when starting the debugger. *
*   using .sympath and .sympath+                                    *
*********************************************************************
*** ERROR: Module load completed but symbols could not be loaded for ntdll.dll
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for ntoskrnl.exe -
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {0, 2, 1, f9c6b67d}

ANALYSIS: Kernel with unknown size. Will force reload symbols with known size.
ANALYSIS: Force reload command: .reload /f ntoskrnl.exe=FFFFFFFF804D7000,213F80,42250FF9
***** Kernel symbols are WRONG. Please fix symbols to do analysis.

***** Kernel symbols are WRONG. Please fix symbols to do analysis.

*** ERROR: Symbol file could not be found.  Defaulted to export symbols for NDIS.sys -
*** ERROR: Module load completed but symbols could not be loaded for mssmbios.sys
*** ERROR: Module load completed but symbols could not be loaded for DP83815.SYS
Probably caused by : DP83815.SYS ( DP83815+267d )

Followup: MachineOwner
---------

nt!DbgBreakPointWithStatus+0x4:
804e3592 cc              int     3

kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 00000000, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000001, value 0 = read operation, 1 = write operation
Arg4: f9c6b67d, address which referenced memory

Debugging Details:
------------------

ANALYSIS: Kernel with unknown size. Will force reload symbols with known size.
ANALYSIS: Force reload command: .reload /f ntoskrnl.exe=FFFFFFFF804D7000,213F80,42250FF9
***** Kernel symbols are WRONG. Please fix symbols to do analysis.

***** Kernel symbols are WRONG. Please fix symbols to do analysis.


MODULE_NAME: DP83815

FAULTING_MODULE: 804d7000 nt

DEBUG_FLR_IMAGE_TIMESTAMP:  4096c0df

WRITE_ADDRESS: unable to get nt!MmSpecialPoolStart
unable to get nt!MmSpecialPoolEnd
unable to get nt!MmPoolCodeStart
unable to get nt!MmPoolCodeEnd
00000000

CURRENT_IRQL:  2

FAULTING_IP:
DP83815+267d
f9c6b67d f3a5            rep movs dword ptr es:[edi],dword ptr [esi]

DEFAULT_BUCKET_ID:  WRONG_SYMBOLS

BUGCHECK_STR:  0xD1

LAST_CONTROL_TRANSFER:  from 80532d2e to 804e3592

STACK_TEXT:  
WARNING: Stack unwind information not available. Following frames may be wrong.
f9ce49e4 80532d2e 00000003 00000000 f9c6b67d nt!DbgBreakPointWithStatus+0x4
f9ce4dc4 804e187f 0000000a 00000000 00000002 nt!KeDeregisterBugCheckReasonCallback+0x6c7
f9ce4e64 f972cfca 00000000 819e8000 00000000 nt!Kei386EoiHelper+0x2823
f9ce4e88 804dc4fd 819e82b8 819e8290 eb370870 NDIS!NdisMSetTimer+0x90
f9ce4fa4 804dc378 0d839080 00000000 ffdff000 nt!KeSetTimer+0x113
f9ce4fd0 804dbbd4 80559280 00000000 000008d7 nt!KeWaitForMutexObject+0x1d8
f9ce4ff4 804db89e f9d188a0 00000000 00000000 nt!KiDispatchInterrupt+0x360
00000000 00000000 00000000 00000000 00000000 nt!KiDispatchInterrupt+0x2a


STACK_COMMAND:  .bugcheck; kb

FOLLOWUP_IP:
DP83815+267d
f9c6b67d f3a5            rep movs dword ptr es:[edi],dword ptr [esi]

FOLLOWUP_NAME:  MachineOwner

IMAGE_NAME:  DP83815.SYS

SYMBOL_NAME:  DP83815+267d

BUCKET_ID:  WRONG_SYMBOLS

Followup: MachineOwner
---------

const portCHAR pxReportDescriptor[] =
{
     0x05,  0x01,    /* USAGE_PAGE (Generic Desktop)        */
     0x09,  0x04,    /* USAGE (Joystick)                    */
     0xa1,  0x01,    /* COLLECTION (Application)            */
     0x05,  0x01,    /*   USAGE_PAGE (Generic Desktop)    */
     0x09,  0x01,    /*   USAGE (Pointer)                */
     0xa1,  0x00,    /*   COLLECTION (Physical)            */
     0x09,  0x30,    /*     USAGE (X)                    */
     0x09,  0x31,    /*     USAGE (Y)                    */
     0x09,  0x32,    /*     USAGE (Z)                    */
   //      0x09,  0x33,    /*     USAGE (T)                    */
     0x15,  0x81,    /*     LOGICAL_MINIMUM (-127)        */
     0x25,  0x7f,    /*     LOGICAL_MAXIMUM (127)        */
     0x75,  0x08,    /*     REPORT_SIZE (8)                */
//     0x95,  0x04,    /*     REPORT_COUNT (4)                */
         0x95,  0x03,    /*     REPORT_COUNT (3)                */
     0x81,  0x02,    /*     INPUT (Data,Var,Abs)            */
     0xc0,            /*   END_COLLECTION                    */
     0xc0            /* END_COLLECTION                    */
};

/* Endpoint 1 descriptor */
    0x07,            /* bLength                                    */
    0x05,            /* bDescriptorType                            */
    0x81,            /* bEndpointAddress, Endpoint 01 - IN        */
    0x03,            /* bmAttributes      INT                    */
    //0x04, 0x00,        /* wMaxPacketSize: 4 bytes (x, y, z, t)        */
        0x03, 0x00,        /* wMaxPacketSize: 3 bytes (x, y, z)        */
    0x0A            /* bInterval

    /* Write our sample data to the fifo. */
        AT91C_BASE_UDP->UDP_FDR[ usbEND_POINT_1 ] = x;
        AT91C_BASE_UDP->UDP_FDR[ usbEND_POINT_1 ] = y;
        AT91C_BASE_UDP->UDP_FDR[ usbEND_POINT_1 ] = z;
                //AT91C_BASE_UDP->UDP_FDR[ usbEND_POINT_1 ] = t;