Teledyne LeCroy HPT - Users Manual - Manual (Page 15)

CATC HPT User’s Manual Version 2.27
Page 13
In the “.fal” file is recorded a failure description for each failed unit, as follows:
Failure #n, Unit #m
followed by one of:
The USB Host Controller wasn’t found in the system.
The TEST DEVICE wasn't connected to USB ports.
Started at port n. First failure for Full (Low) Speed at port m. Type of failure:
the latter followed by one or more of:
Wrong data on data loopback.
Bad connection status.
There were v USB errors.
There were w host system errors.
There were x host controller process errors.
There were y wrong transfer status errors.
The number of USB interrupts was wrong: z instead of 21.
USB power is not provided on port 1.
USB power is not provided on port 2.
5.6 Test Results: Error Levels
Upon termination, the HPT application sets the DOS error level according to the test results. If
the test passed, it exits with error level 0; otherwise, it exits with a corresponding error level.
This feature allows processing of the test results in a batch file.
The error level is calculated according to the following rules:
(1) To identify where the failure occurred, an error base value is selected from the following
table:
“CH 1”
connected to:
Error occurred
at test of:
Error
Base
Value:
Host Port 1 Full Speed At Port 1 1
Host Port 1 Low Speed At Port 1 5
Host Port 1 Full Speed At Port 2 9
Host Port 1 Low Speed At Port 2 13
Host Port 2 Full Speed At Port 2 17
Host Port 2 Low Speed At Port 2 21
Host Port 2 Full Speed At Port 1 25
Host Port 2 Low Speed At Port 1 29