Renesas V850E2 Instrukcja Użytkownika Pobierz pdf (Strona 18)

 iSYSTEM, September 2014 18/23

Example 2 Trace Result

When the trigger occurs, trace port outputs a special trigger message called Watchpoint, frame 0

above. This is detected by the external trace hardware and recorded as a trigger event. Recorded

trigger message is depicted with a red frame in the trace window.

In this example, we can see that actual Type_Simple() function started 3 frames after the Watchpoint

message. This is due to a delay between the time when the instruction was executed and the time

when belonging message is broadcast externally. It is user’s concern to search for the code that

actually generated the trigger message. The distance from the trigger frame to the actual trigger point

in the reconstructed program also depends on the number of sequential instructions following the

trigger event.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23

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Renesas V850E2 Instrukcja Użytkownika Strona 18