我现在遇到的问题是不知道如何编写硬件触发中断处理程序
环境为wince.net x86,代码如下希望您给予关注
//Öжϴ¦Àí²¿·Ö
HANDLE g_hevInterrupt;;
HANDLE g_htIST;
DWORD g_dwSysInt;
DWORD SetupInterrupt ( void );
DWORD WINAPI ThreadIST ( LPVOID lpvParam );
DWORD SetupInterrupt( void )
{
BOOL fRetVal;
DWORD dwIrq = 7（这是硬件设置的中断号）
DWORD dwThreadID;
// Create an event
//
g_hevInterrupt = CreateEvent(NULL, FALSE, FALSE, NULL);
if(!g_hevInterrupt) return 10;
// Have the OAL Translate the IRQ to a system irq
//
fRetVal = KernelIoControl( IOCTL_HAL_TRANSLATE_IRQ,
&dwIrq,
sizeof( dwIrq ),
&g_dwSysInt,
sizeof( g_dwSysInt ),
NULL );
if( !fRetVal )return 11;
// Create a thread that waits for signaling
//
g_htIST = CreateThread(NULL,// CE Has No Security
0, // No Stack Size
ThreadIST,// Interrupt Thread
NULL,// No Parameters
CREATE_SUSPENDED,// Create Suspended until we are done
&dwThreadID // Thread Id
);
if( !g_htIST )return 12;
// Set the thread priority to real time
//
int m_nISTPriority = 7;
if(!CeSetThreadPriority( g_htIST, m_nISTPriority))
return 13;
// Initialize the interrupt
//
if ( !InterruptInitialize(g_dwSysInt,g_hevInterrupt,NULL,0) )return 14;
ResumeThread( g_htIST );
return 0;
}
DWORD WINAPI ThreadIST( LPVOID lpvParam )
{
DWORD dwStatus;
// Always chec the running flag
//
BOOL g_fRun = TRUE;
while( g_fRun )
{
dwStatus = WaitForSingleObject(g_hevInterrupt, INFINITE);
// Make sure we have the object
//
if( dwStatus == WAIT_OBJECT_0 )
{
// Handle Interrupt Here
//
::MessageBox (NULL, _T("²âÊÔ!"), _T("¾¯¸æÌáʾ"), MB_ICONQUESTION);
// Finish the interrupt
//
InterruptDone( g_dwSysInt );
}
}
return 0;
}
不知道为什么不能触发
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