Keysight P9241, Руководство программиста SCPI

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1244 Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
38
Programming Examples
/* Get the number of waveform points available. */
do_query_string(":WAVeform:POINts?");
printf("Waveform points available: %s\n", str_result);
/* Set the waveform source. */
do_command(":WAVeform:SOURce CHANnel1");
do_query_string(":WAVeform:SOURce?");
printf("Waveform source: %s\n", str_result);
/* Choose the format of the data returned (WORD, BYTE, ASCII): */
do_command(":WAVeform:FORMat BYTE");
do_query_string(":WAVeform:FORMat?");
printf("Waveform format: %s\n", str_result);
/* Display the waveform settings: */
do_query_numbers(":WAVeform:PREamble?");
wav_format = dbl_results[0];
if (wav_format == 0.0)
{
printf("Waveform format: BYTE\n");
}
else if (wav_format == 1.0)
{
printf("Waveform format: WORD\n");
}
else if (wav_format == 2.0)
{
printf("Waveform format: ASCii\n");
}
acq_type = dbl_results[1];
if (acq_type == 0.0)
{
printf("Acquire type: NORMal\n");
}
else if (acq_type == 1.0)
{
printf("Acquire type: PEAK\n");
}
else if (acq_type == 2.0)
{
printf("Acquire type: AVERage\n");
}
else if (acq_type == 3.0)
{
printf("Acquire type: HRESolution\n");
}
wav_points = dbl_results[2];
printf("Waveform points: %e\n", wav_points);
avg_count = dbl_results[3];
printf("Waveform average count: %e\n", avg_count);
x_increment = dbl_results[4];
printf("Waveform X increment: %e\n", x_increment);