Agilent Technologies Infiniium 8000A, Руководство программиста

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30-35
Waveform Commands
DATA? Example for Digital Channels
/******************************************************************************
* Function name: WriteCsvToFile
* Parameters: double *TimeValues which is a pointer to an array of
* calculated time values
* unsigned short *wordData which is a pointer to an array of
* word format digital values
* unsigned char *byteData which is a pointer to an array of
* byte format digital values
* unsigned long AcquiredLength which is the number of data
* points read
* Return value: none
* Description: This routine stores the time and digital information about
* the waveform as time, word format, and byte format
* separated by commas to a file.
******************************************************************************/
void WriteCsvToFile( double *TimeValues, unsigned short *wordData,
unsigned char *byteData, unsigned long AcquiredLength )
{
FILE *fp;
char Binary[9];
unsigned long i;
int j;
int k;
fp = fopen( "digital.csv", "wb" ); /* Open file in binary mode - clear file
if it already exists */
if (fp != NULL) {
fprintf( fp, "Time,Decimal Word Data,Hex Word Data,Hex Byte Data,Binary Byte
Data\n");
Binary[8] = '\0';
for ( i = 0; i < AcquiredLength; i++ ) {
// Create the binary formated byte data
for ( j = 7, k = 0; j >= 0; j--, k++ ) {
Binary[k] = ((byteData[i] & ( 1 << j )) >> j) + '0';
}
fprintf( fp, "%e,%d,%04X,%02X,%s\n", TimeValues[i], wordData[i], wordData[i],
byteData[i], Binary );
}
fclose( fp );
}
else {