Teledyne LeCroy Detective - Users Manual - Manual (Page 21)

CATC CATC Detective User’s Manual Version 2.21
Page 18
Although this permits greatly increased recording times, there are two associated drawbacks:
1. When bus traffic is at a minimum, it can take a long time to fill the analyzer’s recording
memory. Once a triggering event has been detected it may still take several minutes before
recording stops, due to limited bus traffic filling the memory. This problem can be somewhat
alleviated by stopping manually once the trigger has been detected; the analyzer provides an
on-screen “triggered” indicator for this purpose.
2. Recording without Idle state eliminates the real-time information, so the CATC Detective
software will not be able to support any of the timing related features.
4.4.1.3 Connection Speed Selection
This panel of the Data Recording Options dialog box allows specification of the USB branch
where the analyzer is connected. If Low-Speed is specified, the analyzer views the bus traffic as
would a low-speed device, switching its internal clock (from the full-speed 12 MHz) to 1.5 MHz
clock. Additionally, it inverts the data polarity to provide the software with the correct binary
information.
4.4.1.4 File Name...
Use the specified file name when saving the recorded traffic data file; the default name is
“data.usb”. Any file name can be specified, though use of the “.usb” extension is recommended
(see “Open”, under “The File Menu”, above); if no extension is specified, “.usb” will be added
by default.
4.4.1.5 Save... (Recording Options)
Save the currently specified Recording Options for use in future recording sessions. Any file
name can be specified, though use of the “.rec” recommended is suggested (see “Load...”,
following); if no extension is specified, “.rec” will be added by default.
4.4.1.6 Load... (Recording Options)
Load a previously saved “*.rec” file, thus restoring a previous set of Recording Options.
4.4.1.7 Save As Default (Recording Options)
The “Save As Default” function is equivalent to the “Save...” function, specifying the file name
“default.rec”. Whenever the CATC Detective software begins execution, it automatically loads
the “default.rec” file, if one exists.