Omega Vehicle Security OME-PIO-D56 manual DEMO5, PC3

4.6DEMO5

/* demo 5 : Four interrupt source				*/
/*	PC0	: initial Low	, active High	*/
/*	PC1	: initial High , active Low		*/
/*	PC2	: initial Low	, active High	*/
/*	PC3	: initial High , active Low		*/
/* step 1 : run DEMO5.EXE				*/
/* --------------------------------------------------------------				*/
#include "PIO.H"
#define A1_8259 0x20
#define A2_8259 0xA0
#define EOI		0x20
WORD init();
WORD wBase,wIrq;
static void interrupt irq_service();
int irqmask,now_int_state,new_int_state,invert,int_c,int_num;
int CNT_L1,CNT_L2,CNT_L3,CNT_L4;
int CNT_H1,CNT_H2,CNT_H3,CNT_H4;
int main()
{	i,j;
int
WORD wBoards,wRetVal,t1,t2,t3,t4,t5,t6;
WORD wSubVendor,wSubDevice,wSubAux,wSlotBus,wSlotDevice;
char c;
clrscr();
/* step1 : find address-mapping of PIO/PISO cards				*/
	.
	.		/* select card_0 */
/* step2 : enable all D/I/O port
			/* /RESET -> 1	*/
outportb(wBase,1);				*/
/* step3 : configure I/O direction				*/
outportb(wBase+0xcc,0x00);			/* set CON3 as D/I ports */
init();

printf("\n***** show the count of pulse *****\n");

for (;;)

{

gotoxy(1,7);

printf("\n(CNT_L,CNT_H)=(%d,%d) (%d,%d) (%d,%d) (%d,%d) %x",CNT_L1,CNT_H1,CNT_L2,CNT_H2,CNT_L3,CNT_H3,CNT_L4,CNT_H4,int_num);

if (kbhit()!=0) break;

}

outportb(wBase+5,0);	/* disable all interrupt */
PIO_DriverClose();
}
/* Use PC0, PC1, PC2 & PC3 as external interrupt signal		*/
WORD init()
{
disable();	/* disable all interrupt */
outportb(wBase+5,0);
OME-PIO-D56/OME-PIO-D24 User Manual (Ver.2.1, Oct/2003)		---- 47