Renesas User System Interface Board HS7047ECH61H Manual de usuario descargar pdf (Pagina 204)

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4.16.3 Displaying Trace Information by the Conditional Trace Function

The conditional trace function only acquires trace information at the address where a specified condition has

been satisfied. This is useful for analyzing a program focused on reading from or writing to a specific address

(e.g. a global variable or memory mapped I/O).

(1) If the user program is running, select [Halt Program] from the [Debug] menu to halt the program.

(2) Delete all the break conditions that have been set. Uncheck [Free Trace] on the [Condition] page of the

[Trace Acquisition Properties] dialog box (otherwise, the free trace mode will be selected).

(3) Select [1] from the list box on the [Condition] page of the [Trace Acquisition Properties] dialog box and

then click [Edit…]. The [Trace Acquisition Condition Channel 1] dialog box is displayed. Select the

[Acquisition Condition] radio button in the [After Condition Match] group box on the [Action] page.

(4) An address must be set as the condition. Uncheck [Don’t Care] on the [Address] page of the [Trace

Acquisition Condition Channel 1] dialog box. Then use the [Watch] window to refer to the address on the

line that includes ‘a[0]’ and enter this address in the [Start] edit box. In this example, enter H'FFFFE400.

This completes the setting of an address. Click the [OK] button to close the [Trace Acquisition Condition

Channel 1] dialog box.

(5) Items that have been set are displayed in the list box on the [Condition] page of the [Trace Acquisition

Properties] dialog box. Click the [Close] button on this dialog box.

(6) Set a software breakpoint at the address on the line that has ‘delete p_sam;’ within the tutorial function

(H'000010E0. in this example) (for details, refer to section 4.15.1, Software Break Function).

(7) Select [Reset Go] from the [Debug] menu. Execution stops when the break condition is satisfied, and the

[Trace] window then displays the following contents.

Figure 4.45 [Trace] Window (Conditional Trace)

1 2 ... 199 200 201 202 203 204 205 206 207 208 209 ... 242 243

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Renesas User System Interface Board HS7047ECH61H Manual de usuario Pagina 204