Programming Examples
12
Agilent InfiniiVision 7000A Series Oscilloscopes Programmer's Guide
849
viPrintf(vi, ":TIMEBASE:MODE MAIN\n");
}
/*
* capture
* ------------------------------------------------------------------
* This function prepares the scope for data acquisition and then
* uses the DIGITIZE MACRO to capture some data.
*/
void capture (void)
{
/* AQUIRE_TYPE - Sets the acquisition mode.
There are three
* acquisition types NORMAL, PEAK, or AVERAGE.
*/
viPrintf(vi, ":ACQUIRE:TYPE NORMAL\n");
/* AQUIRE_COMPLETE - Specifies the minimum completion criteria
* for an acquisition.
The parameter determines the percentage
* of time buckets needed to be "full" before an acquisition is
* considered to be complete.
*/
viPrintf(vi, ":ACQUIRE:COMPLETE 100\n");
/* DIGITIZE - Used to acquire the waveform data for transfer over
* the interface.
Sending this command causes an acquisition to
* take place with the resulting data being placed in the buffer.
*/
/* NOTE!
The use of the DIGITIZE command is highly recommended
* as it will ensure that sufficient data is available for
* measurement.
Keep in mind when the oscilloscope is running,
* communication with the computer interrupts data acquisition.
* Setting up the oscilloscope over the bus causes the data
* buffers to be cleared and internal hardware to be reconfigured.
* If a measurement is immediately requested there may not have
* been enough time for the data acquisition process to collect
* data and the results may not be accurate.
An error value of
* 9.9E+37 may be returned over the bus in this situation.
*/
viPrintf(vi, ":DIGITIZE CHAN1\n");
}
/*
* analyze
* ------------------------------------------------------------------
* In this example we will do the following:
*
- Save the system setup to a file for restoration at a later time.
*
- Save the oscilloscope display to a file which can be printed.
*
- Make single channel measurements.
*/
void analyze (void)
{
double frequency, vpp;
/* Measurements. */
double vdiv, off, sdiv, delay;
/* Values calculated from preamble
data. */
Summary of Contents for InfiniiVision 7000A Series
Page 1: ...Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide...
Page 34: ...34 Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide 1 What s New...
Page 44: ...44 Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide 2 Setting Up...
Page 58: ...58 Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide 3 Getting Started...
Page 750: ...750 Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide 8 Error Messages...
Page 922: ...922 Agilent InfiniiVision 7000A Series Oscilloscopes Programmer s Guide Index...
