Hello,

I would like to know how the application clears the temp files in the "C:\Users\Administrator\AppData\Roaming\International Test Instruments\1480A USB Protocol Analyzer\Default Instance folder" after a session is complete? Do these files have to be deleted manually?

Specifically files:
temp.atm
temp.ddi
temp.dtp
temp.nds
temp.nof
temp.pdi
temp.pds
temp.tni
temp.tnp
temp.usb

I ask this because I need to leave the 1480A analyzing a PC - USB device connection for an extended period of time (3-4 days) and the temp.usb file was very large (23GB) as expected, but a few other temp files were of the same size therefore my 256GB hard drive completely filled causing the application to crash. Is using a much bigger hard drive the only solution to extended analyzing sessions with huge data captures?

Thank you, any help is appreciated!

Hello. If the 1480A application is the only instance running on the system, the temp files are placed under the %APPDATA%\International Test Instruments\1480A USB Protocol Analyzer\Default Instance directory.

%APPDATA% is a Windows  environment variable that points to different file system locations for different versions of the OS and for different users. You can find out where your %APPDATA% variable points via the command line:

C:\Users\XXX>echo %APPDATA%
C:\Users\XXX\AppData\Roaming

So in my case, the files end up here for a single-instance of the 1480A application:

C:\Users\XXX\AppData\Roaming\International Test Instruments\1480A USB Protocol Analyzer\Default Instance

If you start multiple instances of the 1480A application, each application instance will create a new, randomly named, directory that looks something like this:

C:\Users\XXX\AppData\Roaming\International Test Instruments\1480A USB Protocol Analyzer\5c764d9c-f337-44e1-9a3c-1e83a9f9ee89

So, I would recommend deleting these randomly created directories from time to time in case you are using multiple instances of the 1480A application at the same time. The files in the 'Default Instance' directory will be overwritten when a new capture is started so no need to delete manually.

Finally, yes, you would need a larger HDD/SSD if you want to capture such large/long data files. You may consider disk compression but there is a big CPU overhead involved with that.

/Admin.