Agilent Technologies E1326B Manual do Utilizador descarregar pdf (Página 227)

C Version

/* E1411_QY.CPP - This program sets the multimeter function to (4-wire) */

/* OHMS and then queries the function setting and reads it from the Query */

/* Response register. */

#include <sicl.h>

#include <stdio.h>

#include <stdlib.h>

#include <conio.h>

#define READY (iwpeek((unsigned short *)(base_addr + 0x04)) & 0x01)

#define DONE ((iwpeek((unsigned short *)(base_addr + 0x04)) & 0x81) == 0x81)

#define QRYRDY ((iwpeek((unsigned short *)(base_addr + 0x04)) & 0x83) == 0x83)

/* Function prototypes */

void set_function(char *base_addr);

void main(void)

{

char *base_addr;

/* clear the user screen */

clrscr();

/* create and open a device session */

INST e1411b;

e1411b = iopen("vxi,24");

/* map the E1411B registers into user memory space */

base_addr = imap(e1411b, I_MAP_VXIDEV, 0, 1, NULL);

/* function call to set the multimeter function */

set_function(base_addr);

/* close session */

iclose(e1411b);

}

/******************************************************/

void set_function(char *base_addr)

{

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228 HP E1326B/E1411B Multimeter Register-Based Programming Appendix C

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Agilent Technologies E1326B Manual do Utilizador Página 227