HP E1459A - Manual (Page 31)

30 Using the HP E1459A Module
Power-on / Reset States
At power-on or reset (*RST) the HP E1459A is set to the following
conditions:
•
Watchdog timer is off (disabled).
•
Clock Source is Internal
•
Input Debounce Time is 18.0
µ
S.
•
DAV (Data Available) Event interrupts are disabled for all ports.
•
Edge Event interrupts are disabled for all ports.
Also, refer to the STATus:PRESet command in Chapter 3.
Example 1:
Reset, Self Test,
and Module ID
This first example resets the HP E1459A, performs the module self test, and
reads the module ID and description.
/* Self Test
This program resets the HP E1459A, performs a Self Test,
and reads the ID string
Created in Microsoft Visual C++ */
#include
#include
#include
#define INSTR_ADDR "GPIB0::9::3::INSTR" /* HP E1459A logical address */
int main()
{
ViStatus errStatus;
/* status from VISA call */
ViSession viRM; /* Resource Mgr. session */
ViSession E1459; /* session for HP E1459A */
char id_string [256] = {0}; /* ID string buffer */
char selftst_string[256] = {0};
/* Open a default Resource Manager */
errStatus = viOpenDefaultRM (&viRM);
if (VI_SUCCESS > errStatus){
printf("ERROR: viOpen() returned 0x%x\n",errStatus);
return errStatus;}
/* Open the Instrument Session */
errStatus = viOpen (viRM, INSTR_ADDR,VI_NULL,VI_NULL, &E1459);
if (VI_SUCCESS > errStatus){
printf("ERROR: viOpen() returned 0x%x\n",errStatus);
return errStatus;}
/* Reset the E1459A */
errStatus = viPrintf (E1459, "*RST;*CLS\n");
if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus);
return errStatus;}
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com