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CHAPTER6 FUNCTIONS
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6.14 Sampling Trace Function
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3) When selecting "Memory card (RAM)" in "Target memory" while the SRAM card where the sampling trace
file has been registered is not mounted, either of the following operations were performed.
• The CPU module is powered off and then on.
• The CPU module is reset.
4) When selecting "Memory card (RAM)" in "Target memory" and the sampling trace file is corrupt, either of the
following operations were performed.
• The CPU module is powered off and then on.
• The CPU module is reset.
(c) Reading trace result in the STOP status
The trace result cannot be read while the CPU module is in the STOP status.
When reading the trace result, read it while the CPU module is in the RUN status.
(d) Sampling trace registration while the trigger condition is established
Even if the trigger condition is established, the sampling trace setting can be registered by the following
procedure.
1) Turn on SM829 (Forced registration specification of trace setting).
2) Select “Individual setting/execution” in the screen shown in Figure 6.67.
3) Click the
button, select “Registry trace (For start trace from Program)”, and click the
button.
● When the sampling trace is registered by the procedures above (d) 1) to 3), start the sampling trace in status where the
trigger condition is not established.
If the trigger condition has been established when the sampling trace starts, the trigger may not be normally executed.
● When selecting "Wizard setting/execution" in the Sampling trace screen shown in (d) 2), and starting the sampling
trace, the trigger may not be normally executed, although the sampling trace setting can be registered.
(e) When a file register is selected as a specified device by the detail setting of trace
conditions
When a file register is selected as a specified device by the detail setting of trace point setting and trigger point
setting, do not change the block numbers of file register file and file register after trace registration.
Trace data may not be normally sampled.
(f) Trace point setting
When setting the trace point setting per each time or per multiple CPU high speed transmission cycle, pay
attention to the sampling interval and sampling processing time for one sampling since the sampling trace is
performed as interrupt processing.
If the sampling processing time for one sampling is long, “WDT ERROR” may be detected.
Trace execution
Execute