Teledyne LeCroy PXA125 User Manual

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User Manual PXA125

Programming Reference 4-21

2. Define array FMPT fmWav[]

3. Fill the structure with data array of which each fmWav represents:

pt – S/s value x 14.31655765 (S/s is limited by specified sample clock range)

last – Ored value

0x80 for the last waveform data point

0x01 for marker position

0x00 for all other points

4. Convert pt component of array to long format (Intel binary representation, if neces-

sary)

5. Call DLL function SendBlock(hInstr, 2, "", (void*)fmWav, *5)

Note that the arbitrary FM waveform data array is comprised of 5 bytes. The most significant
4 bytes contain waveform data. The lease significant byte (“last”) flags marker position and
end of data file. Therefore, each arbitrary FM waveform data point is represented by 5 bytes.