Trace panel

This panel displays the trace data which has had an execution history of the program recorded in it (see "2.13 Collecting an Execution History").

Although the trace data is displayed, by default, in a disassembled text and source text mixed mode, it is possible to display either one of these text by selecting the desired Display mode.

The display position is automatically updated after program execution is halted, so that the latest trace data will be displayed.

Note that this panel can be opened only when CS+ is connected with the debug tool.

 

This section describes the following.

[How to open]

[Description of each area]

This area displays the trace numbers that correspond to trace frames.

This area displays the time in "hour, minute, second, millisecond, microsecond and nanosecond" units from when the program started running till when the cause of instruction execution or memory access in any frame occurred.

(1) If EXTAL x 8 <= 100 MHz

Trace clock count source[MHz] ＝ EXTAL × 8

(2) If EXTAL x 8 > 100 MHz

Trace clock count source[MHz] ＝ EXTAL × 4

(1) When EXTAL or PLL is used as the clock source for the system clock (ICLK)*

(a) When the division ratio of 1:1 is set by SCKCR.ICK
Trace clock count source[MHz] = Selected clock source /1

(b) When a division ratio other than 1:1 is set by SCKCR.ICK
Trace clock count source[MHz] = Selected clock source /1

(2) When EXTAL or PLL is not used as the clock source for the system clock (ICLK)

Trace clock count source[MHz] = Selected clock source /1

Trace clock count source[MHz] = ICLK (using the performance measurement counter)

 

*When the clock source for the system clock (ICLK) is changed while the user program is running, the count source for timestamps will also change. In such a case, simply multiplying the timestamp difference and the frequency does not make the absolute time.

 

This area displays the address of an assembly instruction or a line number in the source file.

The desired notation (numerical representation) or character string encoding can be selected by clicking the appropriate toolbar button or by selecting from a context menu.

The display form is as follows:

This area displays collected trace data as shown below.

Note that the items displayed in this area differ with each display mode selected (see "(a) Display mode").

 

This area has the following features:

One of the following three display modes can be selected by clicking the appropriate toolbar button or by selecting from a context menu.

When [Jump to Source] on the context menu is selected, the Editor panel is opened, with the caret on it moved to a source line that corresponds to the line where the caret is currently positioned. (If the Editor panel is already open, CS+ jumps to it directly.)

Similarly, when [Jump to Disassemble] is selected, the Disassemble panel (Disasemmble1) is opened, with the caret on it moved to a fetch address on the line where the caret is currently positioned. (If the Disassemble panel (Disassemble1) is already open, CS+ jumps to it directly.)

By clicking the or button in the toolbar or selecting [Window Connecting] and then [Connect Source Window] or [Connect Disassemble Window] on the context menu, it is possible to have data corresponding to the address at the caret position on this panel displayed in synchronism with it on the Editor panel or Disassemble panel. (The focus is not moved.)

When the mouse cursor is hovered on a line, the data in all areas (items) corresponding to the line are displayed one below another in a popup window.

By choosing [Save Trace Data As...] from the [File] menu, it is possible to open the Data Save dialog box and then save the content of this panel to a text file (*.txt) or CSV file (*.csv).

For details on how to save trace data, see "2.13.9 Saving the displayed content of an execution history."

To zoom in and out of the Trace panel view, change the zoom ratio by using the drop-down list on the toolbar of the Main window while the focus is placed in the Trace panel.

You can also change the zoom ratio by using the [Ctrl] key + mouse-wheel combination.

 

If the panel is closed after the zoom ratio is changed, the changed zoom ratio is retained (next time, the panel will open at the changed zoom ratio).

This area displays the subject address at which a memory access was made.

However, if an access was made to an I/O register, the I/O register name is displayed in place of an address. (If there are multiple accesses, the rest is displayed on the next line.)

The desired notation (numerical representation) can be selected by clicking the appropriate toolbar button or by selecting from a context menu.

This area displays an accessed data value and the type of access.

However, this information is not displayed for accesses to the CPU register.

The desired notation (numerical representation) or character string encoding can be selected by clicking the appropriate toolbar button or by selecting from a context menu.

The display forms of data values and types of access are shown below. (The colors in which text and backgrounds are displayed depend on how the [General - Font and Color] category of the Option dialog box are set.)

[Toolbar]

[[File] Menu (Trace Panel-Only Items)]

The [File] menu used exclusively for the Trace panel is as follows. (The other items are shared.)

However, all of these items are disabled during program execution.

[[Edit] Menu (Trace Panel-Only Items)]

The [Edit] menu used exclusively for the Trace panel is as follows. (All other items are disabled.)

However, all of these items are disabled during program execution.

[Context menu]