Keysight E4428C ESG RF - Page 386

378 Keysight Signal Generators Programming Guide
Creating and Downloading User–Data Files
User Flatness Correction Downloads Using C++ and VISA
if (status)//if any errors then display the error and exit the program
{
fprintf(stderr, "viOpen failed (%s)\n", instOpenString);
return -1;
}
printf("Example Program to Download User Flatness Corrections\n\n");
printf("Enter number of frequency and amplitude pairs: ");
int num = 0;
scanf("%d", &num);
if (num > 0)
{
int lenArray=num*2;//length of the pairsList[] array. This array
//will hold the frequency and amplitude arrays
char** pairsList = new char* [lenArray]; //pointer array
for (int n=0; n < lenArray; n++)//initialize the pairsList array
//pairsList[n]=0;
for (int i=0; i < num; i++)
{
char* nextFreq = new char[MAX_STRING_LENGTH+1]; //frequency array
char* nextPower = new char[MAX_STRING_LENGTH+1];//amplitude array
//enter frequency and amplitude pairs i.e 10ghz .1db
printf("Enter Freq %d: ", i+1);
scanf("%s", nextFreq);
printf("Enter Power %d: ",i+1);
scanf("%s", nextPower);
pairsList[2*i] = nextFreq;//frequency
pairsList[2*i+1]=nextPower;//power correction
}
unsigned char str[256];//buffer used to hold SCPI command
//initialize the signal generator's user flatness table
sprintf((char*)str,":corr:flat:pres\n"); //write to buffer
viWrite(vi, str,strlen((char*str),0); //write to PSG
char c = ',';//comma separator for SCPI command
for (int j=0; j< num; j++) //download pairs to the PSG