7166csbb.c

8254 和串口 的程序 实际工程项目作了少许删改 大家参考

#include <conio.h>        /* 此头函数请不要删除 */
#include <dos.h>
#include <stdio.h>
#include <bios.h>

#define IRQ_NUMBER 9
#define F1     0x3B00
#define F2     0x3C00
#define F3     0x3d00
#define ENTER  0x1c0d
void readdat();


int key=0;
int pr=0;
int key1=0;



long far *fptr;
unsigned char data[3]={0,0,0};
static   char data1[300]={0,0,0};




/* 开中断*/

/*中断向量表 */

void readdat()
{
     printf("Have entered  interrupt!\n");
     pr=inportb(0x263);


     if(pr==0)
     {  
     }
     else
     {
	outportb(0x26f,0x03);       /*SEND CNTR TO OL*/
	data[0]=inportb(0x26e);     /*READ OL*/
	data[1]=inportb(0x26e);
	data[2]=inportb(0x26e);
	outportb(0x26f,0x09);       /*RESET CNTR*/

     }
//    key=1;


}
/*中断处理程序 */
void interrupt far readdata_handler()
{
    disable();
//    readdat();
      key1=1;

    outportb(0xA0,0x20);/* 中断结束命令*/
    outportb(0x20,0x20);
    enable();

}
void (interrupt far *oldhandler)();







void main()
{

    int i,j,k,m,cin,CR1,d,d1,ch,f,PR0,PR1,PR2,in,amp=0x00ff;

	    ch=1;PR0=0;PR1=0,PR2=0;  d1=1;


    /*INITIALIZE 7166_1*/

    printf("INITIALIZE 7166_1 START!!\n");
    outportb(0x26d,0x01);           /*INITIALIZE MCR*/
    outportb(0x26d,0x51);           /*INITIALIZE ICR*/

    outportb(0x26d,0x80);           /*INITIALIZE OCCR*/

    outportb(0x26d,0xc0);           /*INITIALIZE QR*/

    outportb(0x26d,0x01);

    outportb(0x26c,0x00);           /*INITIALIZE PR0*/
    outportb(0x26c,0x00);           /*INITIALIZE PR1*/
    outportb(0x26c,0x80);           /*INITIALIZE PR2*/

    outportb(0x26d,0x09);           /*SEND PR TO CNTR*/


    printf("7166_1 INITIALIZE COMPLETED!!\n");


    outportb(0x26d,0x03);           /*SEND CNTR TO OL*/

    PR0=inportb(0x26c);             /*READ PR0*/
    PR1=inportb(0x26c);             /*READ PR1*/
    PR2=inportb(0x26c);             /*READ PR2*/
    printf("7166_1:PR0=%d,  PR1=%d, PR2=%d\n",PR0,PR1,PR2);

    /*INITIALIZE 7166_2*/

    printf("INITIALIZE 7166_2 START!!\n");
     outportb(0x26f,0x01);           /*INITIALIZE MCR*/
    outportb(0x26f,0x51);           /*INITIALIZE ICR*/

    outportb(0x26f,0x80);           /*INITIALIZE OCCR*/

    outportb(0x26f,0xc0);           /*INITIALIZE QR*/

    outportb(0x26f,0x01);

    outportb(0x26e,0x00);           /*INITIALIZE PR0*/
    outportb(0x26e,0x00);           /*INITIALIZE PR1*/
    outportb(0x26e,0x80);           /*INITIALIZE PR2*/

    outportb(0x26f,0x09);           /*SEND PR TO CNTR*/



    printf("7166_2 INITIALIZE COMPLETED!!\n");

    outportb(0x26f,0x03);           /*SEND CNTR TO OL*/

    PR0=inportb(0x26e);             /*READ PR0*/
    PR1=inportb(0x26e);             /*READ PR1*/
    PR2=inportb(0x26e);             /*READ PR2*/
    printf("7166_2:PR0=%d,  PR1=%d, PR2=%d\n",PR0,PR1,PR2);
    printf("\n");



  while(d1)
  {





    do
       {printf("input the data :\n");
	while(bioskey(1)==0);
	cin=bioskey(0);

	 cin=cin&amp-0x30;

	 if (cin>0&&cin<6)
	    {outportb(0x2a8,cin);
	    printf("\n");
	    printf("the input is   %d\n",cin);
	    printf("the %d route sigal is selceted !!\n",cin);
	    }
	 else
	     printf("the input is not valid!!!\n");
	 if(cin>0&&cin<6)
	   d=0;
	 else
	   d=1;

       }while(d);





	disable();
	/*EnableIRQ(irq_number,1);*/

	oldhandler=getvect(IRQ2Vector(IRQ_NUMBER));
	setvect(IRQ2Vector(IRQ_NUMBER),readdata_handler);
	EnableIRQ(IRQ_NUMBER,1);
	enable();
	ch=1;

	while(ch) /* !kbhit() */
	{


	    k=0;
	    while(k<100)
	    {
		if(key1==1)
		 {
		    readdat();
		    data1[k]=data[0];
		    data1[k+1]=data[1];
		    data1[k+2]=data[2];
		    k=k+1;
		    key1=0;
		  }
	    }


	    m=0;
	    printf("PRESS ANY KEY TO SHOW NEXT RESULT!!\n");

		while(m<100)

		{
		    printf("the %d result is :%d%d%d\n",m+1,data1[m+2],data1[m+1],data1[m]);
		    m=m+1;
		    getch();

		}



	    printf("if you want change the input signal please press F1!!\n");
	    printf("else press any key\n");

	    ch=bioskey(0);
	    if(ch==0x3B00)
	      ch=0;
	    else
	      ch=1;

	}

	setvect(IRQ2Vector(IRQ_NUMBER),oldhandler);
	EnableIRQ(IRQ_NUMBER,0);

	printf("\n");
	printf("Program is paused!\n");


	/*getch();
	getch();*/

	printf("If you want end program please press   F3  !!\n");
	printf("CHARNGE THE SIGNAL ROUTE    PRESS ANY KEY    GO ON!!\n");

	f=bioskey(0);
	    if(f==0x3d00)

		 d1=0;
	    else
		d1=1;




    }

}