App-4
IM 703155-01E
Appendix 2 Waveform Data Format
The VB8300 can handle the following three waveform data formats.
• ASCII data (.csv)
Character code data. Automatically converted to raw data format when loaded to the
waveform memory.
• Binary data (.bin)
Double-precision real number. Automatically converted to raw data format when
loaded to the waveform memory.
• Raw data (.raw)
Data format that can be loaded as-is to the waveform memory.
You can use the VB8300 File Conversion Utility Software that comes with the package to
convert the ASCII data you create into the data format (.raw extension) that the VB8300
can use. In addition, by using various waveform generator software utilities, you can
create waveform data without worrying about the data format.
For editing event data and sequence trigger data, use the VB8300 File Conversion Utility
Software that comes with the package or the function waveform creation utility software
that is installed in the VB8300 as standard.
If you are creating waveform data without using the waveform generator software utilities
that come standard or those sold separately, follow the format given below.
For ASCII and binary data, data that exceeds the range of –1.0 to 1.0 (V) are handled as
–1.0 and 1.0, respectively.
The assignment of high/low bytes is Big endian. Create the data so that the lower
address of the memory is set to the higher byte.
ASCII Data
,
,
,
,
,
,
,
,
,
POINTS [number of points]
RMS [RMS data of I and Q]
(Unit: Vrms, resolution: 0.001 Vrms)
Terminator*
Enter a space and the ASCII data of the RMS value after RMS.
Enter a space and the ASCII data of the number of points after POINTS.
I
0
data
Q
0
data
Event 0
Event 1
Trigger
Trigger Sampling Clock
I
n-1
data
Q
n-1
data
Event 0
Event 1
Trigger
Trigger Sampling Clock Terminator*
*
Terminator: LF or CR+LF
RMS and POINTS are reserved words. Be sure to add a sharp mark (#) at the beginning
of lines that include RMS or POINTS and write the lines before the IQ data. If you write
the lines after the IQ data, the lines will not be recognized correctly.
Note
•
Reserved words are words that have special meaning in the VB8300 ASCII data.
•
The #RMS and #POINTS lines can be omitted.