1 single trace, Single trace – FUJITSU SOFTUNE F2 MC-16 User Manual

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CHAPTER 2 DEPENDENCE FUNCTIONS

2.2.8.1

Single Trace

The single trace traces all data from the start of executing a program until the program is
aborted.

Function of Single Trace

The single trace is enabled by setting the event mode to normal mode using the SET MODE command.

The single trace traces all data from the start of executing a program until the program is suspended.

If the real-time trace function is enabled, data sampling continues execution to record the data in the trace

buffer while the GO, STEP, CALL commands are being executed.

As shown in Figure 2.2-10, suspend/resume trace sampling can be controlled by the event sequencer. Since

the delay can be set between the sequencer terminating the trigger and the end of tracing, the program flow

after an given event occurrence can be traced. The delay count is counted in pass cycle units, so it matches

the sampled trace data count. However, nothing can be sampled during the delay count if trace sampling is

suspended when the sequencer is terminated.

After the delay count ends, a break occurs normally due to the sequential break, but tracing can be terminated

without a break.

Furthermore, a program can be allowed to break when the trace buffer becomes full. This break is called a

trace-buffer-full break.

Figure 2.2-10 Sampling in Single Trace

Suspend
sampling

Start program

Program flow

Trace buffer

Delay

Sequencer

Delay counter

Resume
sampling

Sequencer terminates
Trigger

Tracing
terminates

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