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[priya tiwari <tiwaripriya013@gmail.com>]

Hello,

I am trying to write the value into val field of ai record from device support.I am beginner in EPICS so I have no idea about this. But i have tried then i got the errors at run time please help me.I am attaching code file.

Thanks in advance...

#include <stdio.h>
#include <stddef.h>
#include <string.h>

#include "alarm.h"
#include "cvtTable.h"
#include "dbDefs.h"
#include "dbAccess.h"
#include "recGbl.h"
#include "recSup.h"
#include "devSup.h"
#include "link.h"
#include "aiRecord.h"
#include "epicsExport.h"

static long init();
static long init_record();
static long read_ai();

char buf[100];

struct {
 long       number;
 DEVSUPFUN  report;
 DEVSUPFUN  init;
 DEVSUPFUN  init_record;
 DEVSUPFUN  get_ioint_info;
 DEVSUPFUN  read_ai;
 DEVSUPFUN  special_linconv;
}devaiVal={
      6,
      NULL,
      init,
      init_record,
      NULL,
      read_ai,
      NULL};
epicsExportAddress(dset,devaiVal);

static long init()
{

return(0);
}

static long init_record()
{
return(0);
}

static long read_ai(precord) 
struct aiRecord *precord;
{
char myptr[100];
int e;
DBADDR *dbaddr;
precord->VAL=2;
e=precord->VAL;
dbaddr= dbGetPdbAddrFromLink(precord->inp);
dbPut(dbaddr,precord->DOUBLE,(void *)myptr,&e);
//printf("value=",e);
return(0);
}

Attachment: dbtest.dbd
Description: Binary data