LeCroy LSA1000, Operator'S Manual

Page: 99 / 115

D – 2
Appendix D
IM_WriteDevice(“WFSU NP, 75000, FP, 0”);//transfer
only 75k points
IM_WriteDevice(“CFMT OFF, BYTE, BIN”);
IM_WriteDevice(“TRLV 0”);
IM_WriteDevice(“TRSL POS”);
IM_WriteDevice(“TRSE EDGE, SR, C1”);
IM_QueryDevice(“C1:INSP? ‘PNTS_PER_SCREEN’”,
strBuf, sizeof(strBuf));
idxPtr = strchr(rspStr, ':');
sscanf(1, "%d", &BufferSize);
Loop
{
IM_WriteDevice(“ARM; WAIT; C1:WF? DAT1”);
IM_ReadDevice(Buffer, BufferSize);
}
IM_Disconnect();
Example 2
Using Processing Power on LSA1000 Pulse Parameters:
While Example 1 shows the LSA1000 as a “pure” high speed
digitizer, the on-board processing capability of the LSA1000 can
also be used. In fact, the LSA1000 has the same math functions
and processing capability as a high-end LeCroy digital
oscilloscope. This Example measures pulse widths of the
waveforms that were captured by the LSA1000.
Requirement
Sample Rate = 1.5GS/s
Capture Time = 50us
Number of Points = 75,000
LSA1000 Settings
Sample Rate = 2GS/s
Time per Div. = 5us
Memory Size = 100K