Finding the Answer
Summary
As you look at the overlapping waveforms, you notice there are transitions on the data lines during the read, indicating the data is unstable, which is the probable cause of the problem you’ve been looking for.
You have found what is causing the problem in this routine. Additional troubleshooting of the hardware will lead you to the actual cause.
Unstable Data
Figure 12-20. Mixed Mode Display with Unstable
You have just learned how to use the timing and state analyzers interactively to find a problem that first appeared to be a software problem, but actually is a hardware problem.
You have learned to:
∙trigger one analyzer with the other
∙time correlate measurement data
∙interpret the Mixed mode display
∙overlap timing waveforms
Using the Timing/State Analyzer | HP 16510B |
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