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/*
*
Function name:
*
Parameters:
none
*
Return value:
*
Description:
This routine initializes the oscilloscope for proper
*
acquisition of data. The instrument is reset to a known state and the
*
interface is cleared. System headers are turned off to allow faster
*
throughput and immediate access to the data values requested by queries.
*
Autoscale is performed to acquire a waveform. The waveform is then
*
digitized, and the channel display is turned on following the acquisition.
*/
void initialize( void )
{
write_IO("*RST");
write_IO("*CLS");
write_IO(":SYSTem:HEADer ON");
/* initialize Timebase parameters to center reference, 2 ms
full-scale (200 us/div), and 20 us delay */
write_IO(":TIMebase:REFerence CENTer;RANGe 5e-3;POSition 20e-6");
/* initialize Channel1 1.6v full-scale (200 mv/div);
offset -400mv */
write_IO(":CHANnel1:RANGe 1.6;OFFSet -400e-3");
/* initialize trigger info: channel1 waveform on positive slope
at 300mv */
write_IO(":TRIGger:EDGE:SOURce CHANnel1;SLOPe POSitive");
write_IO(":TRIGger:LEVel CHANnel1,-0.40");
/* initialize acquisition subsystem */
/* Real time acquisition - no averaging; record length 4096 */
write_IO(":ACQuire:MODE RTIMe;AVERage OFF;POINts 4096");
} /* end initialize() */
Sample Programs
learnstr.c Sample Program
initialize
none
/* reset oscilloscope - initialize to known state */
/* clear status registers and output queue */
6-24
/* turn on system headers */
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