Omega OME-PIO-D144 manual Demo4 Interrupt demo2

4.5Demo4: Interrupt demo2

/*	-----------------------------------------------------------	: count low pulse of PC0	*/
/* demo 4			*/
/*	(Initial High & active Low)		*/
/* step 1		: run demo4.exe	*/
/*	----------------------------------------------------------		*/

#include "PIO.H"

#define A1_8259 0x20 #define A2_8259 0xA0 #define EOI 0x20

WORD init_high();

WORD wBase,wIrq;

static void interrupt irq_service(); int COUNT,irqmask,now_int_state;

int main()

{

int i,j; WORD wBoards;

WORD wSubVendor,wSubDevice,wSubAux,wSlotBus,wSlotDevice; char c;

DWORD dwVal;

clrscr();

PIO_DriverInit(&wBoards,0x80,0x01,0x00);

printf("\n(1) Threr are %d OME-PIO-D144 Cards in this PC",wBoards); if ( wBoards==0 )

{

putch(0x07); putch(0x07); putch(0x07);

printf("(1) There are no OME-PIO-D144 card in this PC !!!\n");

exit(0);

}

printf("\n(2) Show the Configuration Space of all OME-PIO-D144:"); for(i=0; i<wBoards; i++)

{

PIO_GetConfigAddressSpace(i,&wBase,&wIrq,&wSubVendor,&wSubDevice, &wSubAux,&wSlotBus,&wSlotDevice);

printf("\nCard_%d: wBase=%x,wIrq=%x,subID=[%x,%x,%x],SlotID=[%x,%x]" ,i,wBase,wIrq,wSubVendor,wSubDevice,wSubAux,wSlotBus,wSlotDevice);

}

/* select card_0 */

PIO_GetConfigAddressSpace(0,&wBase,&wIrq,&wSubVendor,&wSubDevice, &wSubAux,&wSlotBus,&wSlotDevice);

printf("\n(3) *** Card_0, wBaseAddr=%x ***",wBaseAddr);

COUNT=0;

outp(wBase+0xc8,0xff); /* CN1 to CN2 port are all input */ printf("\n(4) *** show the count of High_pulse **\n"); init_high();

for (;;)

{

printf("\nCOUNT=%d",COUNT);

if (kbhit()!=0) {getch(); break;}

}

OME-PIO-D144 User’s Manual (Ver.2.1, Sep/2001) ----- 41