User manual

LIN Serial Analyzer User’s Guide Rev2.0

3.6 TOOLS FUNCTIONS

This sections lists the commands on the Tools pull-down menu.

3.6.1 Debug Mode

Selecting Tools>Debug Mode enables the user to debug bus or slave operational

issues.

One function forces a user-supplied checksum to be appended to a master message

to check a slave for proper error handling. In this mode, the generation of identifier

parity bits is inhibited and the identifier byte is transmitted without modification.

3.6.2 Suppress Bus Time-out Error

The current implementation of the master task cannot refer to a LIN descriptor file, so

there is no way to determine the length of any received message. To calculate an

appropriate time-out value, multiply the length of an eight-byte frame times 140% of the

bit rate.

This value can be overridden by entering a fixed time-out value in the COM Setup

window, described in Section 3.5.1 “Setup COM port”.

3.6.3 Clear Monitor Window

This function clears the Transaction window and resets the time-stamp.

3.6.4 Filters

This opens a window to display all messages received through the Transaction window

but are sorted by ID number. The window is ‘live’ and shows current bus traffic. New

message frames received will overwrite previous data. This is useful in monitoring con-

stanly changes data.

3.6.5 Transmit

This option selects the Transmit Only mode. No received messages are displayed in

the Transaction window.

3.6.6 Listen (Filter)

This option selects the Listen Only mode. Only non-duplicated messages are displayed

in the Transaction window.

When “snooping” bus message frames, this prevents the Transaction window from

becoming cluttered with repeated frames.

3.6.7 Display All (Snoop) Default

This function selects the Display All mode. All messages seen on the bus are

displayed.

This mode is best used with the data logging feature to capture all bus traffic for later

analysis.