Logic Analyzer

The Logic Analyzer is a graphical analysis tool that shows value changes of variables or VTREGs. These elements can be specified by the user, but are subject to restrictions. As a consequence, not every variable can be shown.

The Logic Analyzer can be used with the Simulator.

Open the Logic Analyzer from the toolbar or via the menu View - Analysis Windows - Logic Analyzer.

Signal Names can be changed in width and height.

Signals can be rearranged. Left-Mouse-button-down on a signal name and drag the signal to another location.

Setup... opens a dialog to define variables for recording and to configure the signal output. Some configuration settings can be changed through the signal's context menu.

Load... imports the signals recorded and saved previously in a file (*.UVLA). The data can be analyzed off-line. No signals can be added or removed when viewing data from such a file. Click the button Start to return to the currently defined signals.

Save... stores the signals in a file with a proprietary format (*.UVLA), or a comma-separated file (*.CSV), or in a tab-delimited file (*.TAB) for future analysis. Stop code execution for saving the signals. Only information available in the data buffer can be saved. The margins are delimited by Min Time and Max Time. Signals are not streamed nor saved automatically on hard drive. (For saving signal definitions, refer to Setup - Export Signal Definitions.)

The time fields show:

Zoom buttons change the time range of the display:

Min/Max buttons configure the signal amplitude range in the display. Highlight a variable name and click:

Update Screen buttons refresh, halt, or clear the screen content:

Transition buttons snap the reference line to the next transition point. Highlight a variable name and click:

Jump to buttons navigate to the code or trace data that correspond to the Mouse Cursor. Highlight a variable name and click:

Signal Info enables signal details while hovering the mouse over a signal point.

Show Cycles enables cycle information, which are displayed in the time stamp axis.

Amplitude enables the reference amplitude line and, when Cursor is enabled, also the mouse amplitude line.

Cursor enables a mouse cursor line that displays signal values at mouse position and deltas to the reference line.

Scroll to End button (right bottom corner) jumps to the end of the data buffer. Signal changes are displayed immediately.

Additional Mouse and Key Commands

• Click into the display area to set reference line to a time position.
• Double-click into the display area to remove the reference line.
• Use the mouse wheel to zoom in and out at mouse position.
• Shift+button click applies that button-action to all signals and is effective for the Setup Min/Max buttons.
• Shift+context menu item applies that configuration option to all signals.
• Shift+mouse move snaps the mouse cursor line to the next transition of the moving direction.
• Click on a variable name and press DEL to remove the signal.
• Use the option Adaptive Min/Max of the context menu to configure the signal amplitude range dynamically based on the values available in the signal recording buffer and according to the incoming data.
• Press the Up- or Down-arrow key to highlight the next signal.
• Click on the variable name to toggle signal highlighting.