interrupthandler.c

SERCOSII卡驱动,通过该驱动程序可以在windowXp与RTX环境下运行自己编写的数控软件实现对数控设备的驱动。

#include "Functions.h"


void
RTFCNDCL
SERCANS_ISR(PVOID pUnused)
{
	USHORT usTimeout = 0;
	USHORT usIntSrc;
	USHORT usDrvNbr;
	SHORT ret; 
	BOOL bret;


	usIntSrc = (*(USHORT*)INT_SOURCE);

//	RtPrintf("SERCANS_ISR usIntSrc=0x%08x\n",usIntSrc);

	*(ULONG *)INT_ACK = 0;


	switch(usIntSrc)
	{
	case	0x0100:
		(*(USHORT*)NC_LIFECOUNTER) = (USHORT) (*(USHORT*)NC_LIFECOUNTER)++;
//		RtPrintf("AT TIME 0x0100\n");
		for (usDrvNbr = 1; usDrvNbr < 255; usDrvNbr++)
		{
			if (DriveExist[usDrvNbr] )
				ReadCyclicData(usDrvNbr,
				(T_CYC_DATA*)&(ipc_handles.CYCLE_DATA_AT[usDrvNbr-1]),
				0x48);
			//RtPrintf("SERCANS_ISR ipc_handles.CYCLE_DATA_AT[usDrvNbr]\n");
		}
	   // synchronize_user_isr();//NC access time not using Y-6 starting time NC access
		   bret = RtReleaseSemaphore( ipc_handles.REAL_CNL, 1, NULL);
//		if(usCount_NC_SERCOS_TAKT_SYNC_USER == 1)
//		{
			ret = RtWaitForSingleObject( ipc_handles.SOFT_SYNC, 1 );
//			if(ret == WAIT_TIMEOUT)
//				RtPrintf("WAIT_TIMEOUT\n");

			for (usDrvNbr = 1; usDrvNbr < 255; usDrvNbr++)
			{
				if (DriveExist[usDrvNbr] )
					WriteCyclicData(usDrvNbr,
					(T_CYC_DATA*)&(ipc_handles.CYCLE_DATA_MDT[usDrvNbr-1]),
					0x48);
			}
//		}
		break;

	case	0x0001:
		break;
	case	0x0004:
		break;

	}
	while(((USHORT) *INT_SOURCE) && usTimeout < 5)
	{
		Sleep(4);
		usTimeout++;
	}
	if (usTimeout >=5)
	{
		RtPrintf("usTimeout >=5\n");
	}

	
}