#include <stdio.h> /* for printf */
#include <stdlib.h>
#include "StdAfx.h"
#include"powertest.h"
#include "C:\Program Files\IVI Foundation\VISA\Win64\agvisa\include\visa.h"
#pragma comment(lib,"C:\\Program Files\\IVI Foundation\\VISA\\Win64\\agvisa\\lib\\msc\\agvisa32.lib")
int n=10000;
char dc[40];
char rms[40];
char max[40];
char min[40];
char hig[40];
char low[40];
ViStatus powertest(void)
{
ViSession defRM, instrumentHandle;
ViStatus err;
ViReal64 measvoltage, meascurrent;
//ViReal64 resultDC, resultRMS, resultMIN, resultMAX, resultHIGH, resultLOW;
double resultDC, resultRMS, resultMIN, resultMAX, resultHIGH, resultLOW;
//char dc[10];
ViReal64 currArray[100];
ViInt32 i, numReadings ;
/* initialize the VISA session */
err = viOpenDefaultRM(&defRM);
if (err)
{
printf("viOpenDefaultRM error, check your hardware connections\n");
exit (-1);
}
/* Open the instrument at address 5 for Communication */
err = viOpen(defRM, "GPIB0::16::INSTR", VI_NULL, 5000, &instrumentHandle);
if (err)
{
viClose(defRM);
printf("viOpen error, check the device at address 5\n");
exit (-1);
}
/* Reset the instrument */
//viPrintf(instrumentHandle, "*RST\n");
/* turn on the output */
viPrintf(instrumentHandle, "OUTP 1\n");
/* Set output voltage (2V) and current (1A) levels, turn output on*/
//viPrintf(instrumentHandle, "VOLT %.5lg;:CURR %.5lg\n", 5.0, 1.0);
/* Measure the dc voltage level at the output terminals */
//viQueryf(instrumentHandle, "MEAS:VOLT?\n", "%lf", &measvoltage);
/* Measure the dc current level at the output terminals */
//viQueryf(instrumentHandle, "MEAS:CURR?\n", "%lf", &meascurrent);
//printf ("Output Voltage = %f; Output Current = %f \n",measvoltage,meascurrent);
/* configure dc source for dynamic measurements */
/* change sweep parameters */
viPrintf(instrumentHandle, "SENS:SWE:TINT %.5lg;POIN %ld;OFFS:POIN %ld\n",
980.2E-6,/* sampling rate = 20us*/
2048, /* sweep size = 256 points */
-4); /* pre-trigger offset = 4 points (~125us) */
/* setup the voltage sensing triggered measurement parameters */
/* voltage trigger level to 2.75V */
/* hysteresis band to +/- 0.1V */
/* positive slope */
/* trigger count */
/* acquisition triggered by measurement */
viPrintf(instrumentHandle, "SENS:FUNC \"CURR\"\n");
viPrintf(instrumentHandle, "TRIG:ACQ:LEV:CURR %.5lg\n", 0.092);
viPrintf(instrumentHandle, "TRIG:ACQ:HYST:CURR %.5lg\n", 0.001);
viPrintf(instrumentHandle, "TRIG:ACQ:SLOP:CURR POS\n");
viPrintf(instrumentHandle, "TRIG:ACQ:COUN:CURR %ld\n", 1);
viPrintf(instrumentHandle, "TRIG:ACQ:SOUR INT\n");
/* initiate the acquisition system for measurement trigger */
printf ("Arm acquisition system...\n");
viPrintf(instrumentHandle, "INIT:NAME ACQ\n");
/* must allow time for pre-triggered samples */
printf ("Pre-trigger delay...\n");
//while(n*10)
// n--;
/* trigger the acquisition by changing the output voltage level to 5V */
printf ("Trigger acquisition...\n");
//viPrintf(instrumentHandle, "VOLT %.5lg\n", 5.0);
/* fetch dynamic measurements from the same measurement data */
viQueryf(instrumentHandle, "FETCH:CURR?\n", "%lf", &resultDC);
viQueryf(instrumentHandle, "FETCH:CURR:ACDC?\n", "%lf", &resultRMS);
viQueryf(instrumentHandle, "FETCH:CURR:MAX?\n", "%lf", &resultMAX);
viQueryf(instrumentHandle, "FETCH:CURR:MIN?\n", "%lf", &resultMIN);
viQueryf(instrumentHandle, "FETCH:CURR:HIGH?\n", "%lf", &resultHIGH);
viQueryf(instrumentHandle, "FETCH:CURR:LOW?\n", "%lf", &resultLOW);
/* display measurement results */
printf("Dynamic voltage measurements:\n");
printf("dc=%f A\n rms=%f A\n max=%f A\n min=%f A\n high=%f A\n low=
