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IAR Embedded Workbench for RH850 3.20.x

Timeline window—Interrupt Log graph

In this section:

What do you want to do?

YellowStripe.png

The Interrupt Log graph displays interrupts collected by the trace system. In other words, the graph provides a graphical view of the interrupt events during the execution of your application.

TimelineInterruptLogGraph_Mym80_04.png

Note

There is a limit on the number of saved logs. When this limit is exceeded, the oldest entries in the buffer are erased.

Display area

  • The label area at the left end of the graph displays the names of the interrupts.

  • The graph itself shows active interrupts as a thick green horizontal bar where the white figure indicates the time spent in the interrupt. This graph is a graphical representation of the information in the Interrupt Log window, see Interrupt Log window.

  • If the bar is displayed without horizontal borders, there are two possible causes:

    • The interrupt is reentrant and has interrupted itself. Only the innermost interrupt will have borders.

    • There are irregularities in the interrupt enter-leave sequence, probably due to missing logs.

  • If the bar is displayed without a vertical border, the missing border indicates an approximate time for the log.

  • A red vertical line indicates overflow, which means that the communication channel failed to transmit all interrupt logs from the target system.

At the bottom of the window, there is a common time axis that uses seconds as the time unit.

Context menu

This context menu is available:

InterruptLogGraphPopUp_1.png

Note

The exact contents of the context menu you see on the screen depends on which features that your combination of software and hardware supports. However, the list of menu commands below is complete and covers all possible commands.

These commands are available:

Navigate

Commands for navigating the graph(s). Choose between:

Next moves the selection to the next relevant point in the graph. Shortcut key: right arrow.

Previous moves the selection backward to the previous relevant point in the graph. Shortcut key: left arrow.

First moves the selection to the first data entry in the graph. Shortcut key: Home.

Last moves the selection to the last data entry in the graph. Shortcut key: End.

End moves the selection to the last data in any displayed graph, in other words the end of the time axis. Shortcut key: Ctrl+End.

Auto Scroll

Toggles automatic scrolling on or off. When on, the most recently collected data is automatically displayed when you choose Navigate>End.

Zoom

Commands for zooming the window, in other words, changing the time scale. Choose between:

Zoom to Selection makes the current selection fit the window. Shortcut key: Return.

Zoom In zooms in on the time scale. Shortcut key: +

Zoom Out zooms out on the time scale. Shortcut key: –

10ns, 100ns, 1us, etc makes an interval of 10 nanoseconds, 100 nanoseconds, 1 microsecond, respectively, fit the window.

1ms, 10ms, etc makes an interval of 1 millisecond or 10 milliseconds, respectively, fit the window.

10m, 1h, etc makes an interval of 10 minutes or 1 hour, respectively, fit the window.

Interrupts

A heading that shows that the Interrupt Log-specific commands below are available.

Enable

Toggles the display of the graph on or off. If you disable a graph, that graph will be indicated as OFF in the window. If no data has been collected for a graph, no data will appear instead of the graph.

Clear

Deletes the log information. Note that this will also happen when you reset the debugger.

Go To Source

Displays the corresponding source code in an editor window, if applicable.

Sort by

Sorts the entries according to their ID or name. The selected order is used in the graph when new interrupts appear.

source

Goes to the previous/next log for the selected source.

Select Graphs

Selects which graphs to be displayed in the Timeline window.

Time Axis Unit

Selects the unit used in the time axis—choose between Seconds and Cycles.

If Cycles is not available, the graphs are based on different clock sources. In that case you can view cycle values as tooltip information by pointing at the graph with your mouse pointer.