LeCroy DDA 7 Zi series, Operator'S Manual

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Operator's Manual
WP700Zi-OM-E-RevA
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Setup - Case 1
This scenario assumes that you have developed your application on a PC.
1. Compile your application on your PC
2. Copy the compiled file onto the scope, using a memory stick or network drive.
3. Open the Command Prompt window (Start --> Programs --> Accessories --> Command Prompt) and run
your application.
Setup - Case 2
This scenario assumes that you have Visual C++ loaded on the scope.
x
Use the Visual C++ editor to develop and run your application.
Setup - Case 3
This scenario assumes that you are using a compiler other than Visual C++ (such as GNU's MinGW). It should be
noted that the optimizer in the GNU C Compiler (GCC) is less efficient than that in Visual C++ and will result in
lower performance.
1. Save your application in a text file, and copy it onto memory stick or network drive.
2. Using Windows Explorer, copy the text file to the scope.
3. Download and install the compiler onto the scope.
4. Configure Environmental Variables as follows:
A. Open Start --> Settings --> Control Panel --> System.
B. Click the "Advanced" tab, then the Environmental Variables button.
C. In the "System variables" window, click Path , then the Edit button.
D. At the end of the "Variable Value" string, append ;C:\MinGW\bin for the case of the GNU C
Compiler (GCC) for example.
E. Click OK.
5. Open the Command Prompt window (Start --> Programs --> Accessories --> Command Prompt) and
compile your application.
6. Run your application.
Fast Wave Port Operational Notes
Once FastWavePort is selected, the right-hand dialog shows the current settings. The first of these is critical, and
indicates the base name of the memory window and the two events, which are global within the Windows O/S.
This should be left at its default value and only changed if multiple FastWavePort functions are used in parallel.
Note that this name must match the base name used in the client application.
The full names of these global objects are:
Object Full Name
Memory Mapped File "FastWavePort1File"
Data Available Event "FastWavePort1MutexDataAvailable"
Processing Complete Event "FastWavePort1MutexProcessingComplete"
The "Timeout" field specifies the amount of time that the DSO will wait for the custom processing function to
complete. This prevents the DSO from waiting indefinitely for a potentially unforthcoming custom processing
function. Be careful to set this value to something reasonable, which means a time that is longer by a reasonable
margin than the custom processing is ever expected to take.
Data Length Limitations
The size of the memory window is fixed at 80 Mbytes, which equates to 40 MSamples.
Performance
This is by far the fastest way to process data using a user-defined algorithm on an X-Stream DSO.