中断形式的采集卡的vxd与win32通信问题

编了一个数据采集卡的中断程序，生成的ｖｘｄ在win32下调试无问题，但就是无法正常通信（采集的数据很乱），请各大虾指教，win32部分源程序如下：
#include <stdio.h>
#include <conio.h>
#include <windows.h>
#include <winioctl.h>
#include \"apcx.h\"

HANDLE hDevice;
//PVOID RetInf=0;
int i;

DWORD WINAPI SecondThread(PVOID hEventRing3)
{
while(TRUE)
{
WaitForSingleObject(hEventRing3,INFINITE);
DeviceIoControl(hDevice,READ,0,0,&i,0,0,0);
printf(\"%d\\n\", i);
}
return 0;
}

void main()
{
// PDWORD pVal=(PDWORD)0x9fffc;
unsigned short* BufferAddr;
HANDLE hEventRing3,hEventToNotifyApp;
HMODULE hKernel32Dll;
DWORD tid;

HANDLE (WINAPI *pfOpenVxDHandle)(HANDLE);
hEventRing3=CreateEvent(0,FALSE,FALSE,NULL);
if (!hEventRing3)
 {
fprintf(stderr,\"Failed to create event3...\\n\");
exit(1);
}
hKernel32Dll=LoadLibrary(\"kernel32.dll\");
if (!hKernel32Dll) {
fprintf(stderr, \"Failed to load...\\n\");
exit(1);
}
pfOpenVxDHandle=(HANDLE(WINAPI *)(HANDLE))GetProcAddress(hKernel32Dll,\"OpenVxDHandle\");
if (!pfOpenVxDHandle) {
     fprintf(stderr, \"Failed to get...\\n\");
exit(1);
}
hEventToNotifyApp=(HANDLE)(*pfOpenVxDHandle)(hEventRing3);
if (!hEventToNotifyApp) {
     fprintf(stderr, \"Failed to get hEventToNotifyApp...\\n\");
exit(1);
}
hDevice=CreateFile(\"\\\\\\\\.\\\\CLOCK.VXD\",0,0,0,CREATE_NEW,FILE_FLAG_DELETE_ON_CLOSE,0);
if (hDevice == INVALID_HANDLE_VALUE) {
 fprintf(stderr,\"Cannot load VxD,error=%08ld\\n\",GetLastError());
exit(1);
}
if ( !DeviceIoControl(hDevice,W32IF_PASS_FINE,hEventToNotifyApp,sizeof(hEventToNotifyApp),&BufferAddr,sizeof(BufferAddr),0,NULL))
{
  fprintf(stderr, \"Failed to pass hEvent...\\n\");
exit(1);
}
for(i=0;i<300;i=i++)
 {
 printf(\" %d \", BufferAddr);
}
CreateThread(0,0x1000,SecondThread,hEventRing3,0,&tid);
printf(\"press any key to exit . . .\\n\");
getch();
CloseHandle(hDevice);
}

快点复吧，急