List of all Event Symbols
By default, the Event Display shows all events,
which includes control signal changes, start and end of frame characters
and flow control changes. If you want to see only the data bytes, click
on the All Events button . Click again to display all events.
Click on a symbol, and the analyzer displays the symbol
name and sometimes additional information in the status lines at the bottom
of the Event Display window. For example, clicking on a control signal
change symbol displays which signal(s) changed.
In addition to data bytes, the events shown are (in alphabetical
order):
Event Symbols
|
Abort |
|
Broken Frame - The frame did not end when the analyzer expected it to. This occurs most often with protocols where the framing is indicated by a specific character, control signal change, or other data related event. |
|
Buffer Overflow - Indicates a buffer overflow error. A buffer overflow
always causes a broken frame. |
|
Control Signal Change - One or more control signals changed state. Click
on the symbol, and the analyzer displays which signal(s) changed at the
bottom of the Event Display window. |
|
Data Capture Paused - The Pause icon was clicked, pausing data capture.
No data
is recorded while capture is paused. |
|
Data Capture Resumed - The Pause icon was clicked again, resuming data
capture. |
|
Dropped Frames - Some number of frames were lost. Click on the symbol,
and the analyzer displays many frames were lost at the bottom of the Event
Display window. |
|
End of Frame - Marks the end of a frame. |
|
Flow Control Active - An event occurred which caused flow control to
become active (i.e. caused the analyzer to stop transmitting data) Events
which activate flow control are signal changes or the receipt of an XON
character. |
|
Flow Control Inactive - An event occurred which caused flow control
to become inactive (i.e. caused the analyzer to transmit data). Events
which deactivate flow control are signal changes or the receipt of an
XOFF character. |
|
Frame Recognizer Change - A lowest layer protocol was selected or removed
here, causing the frame recognizer to be turned off or on. |
|
I/O Settings Change - A change was made in the I/O Settings window which
altered the baud, parity, or other circuit setting. |
|
Long Break |
|
Low Power -
The battery in the ComProbe®
is low. |
|
Short Break |
|
SPY Event (SPY Mode only) - SPY events are commands sent by the application
being spied on to the UART. |
|
Start of Frame - Marks the start of a frame. |
|
Begin Sync Character Strip |
|
End Sync Character Strip |
|
Sync Dropped |
|
Sync Found |
|
Sync Hunt Entered |
|
Sync Lost |
|
Test Device Stopped Responding - The analyzer lost contact with the
ComProbe for some reason, often because there is no power to the ComProbe. |
|
Test Device Began Responding - The analyzer regained contact with the
ComProbe. |
|
Timestamping Disabled - Timestamping was turned off. Events
following this event are not timestamped. |
|
Timestamping Enabled - Timestamping was turned on. Events
following this event have timestamps. |
|
Truncated Frame- A frame that is not the same size as indicated within
its protocol. |
|
Underrun Error |
|
Unknown Event |