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CONF.C
/* CONF.C - This program demonstrates how to use the CONFigure command and */
/* low-level digitizer commands to configure the digitizer. INITialize and */
/* FETCh? are used to trigger the digitizer and retrieve the readings from */
/* digitizer memory. */
/* Include the following header files */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#include <cfunc.h> /* This file is from the HP-IB Command Library Disk */
#define ADDR 70905L /* I/O path from the PC to the digitizer */
/* Function Prototypes */
void rst_clr(void);
void ad_conf(void);
void ad_fetch(void);
void check_error(char *func_tion);
/****************************************************************************/
void main(void) /* run the program */
{
rst_clr(); /* reset the digitizer */
ad_conf(); /* send commands which configure the digitizer */
ad_fetch(); /* send command which retrieves the digitizer readings */
}
/****************************************************************************/
void ad_conf(void)
{
int length = 0, loop = 0;
/* use the "set_commands" array to configure digitizer channel 1 */
char static *set_commands[] =
{"CONF1:ARR:VOLT (20),1,(@1)", /* set 20 readings, 1V range, */
/* S/E input port 1 */
"SENS1:SWE:OFFS:POIN -10", /* set 10 pre-arm readings */
"INIT"}; /* place digitizer in */
/* wait-for-arm state */
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Chapter 1 Getting Started 41