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Application Notes
Introduction
All of these digital debug capabilities are now possible in a new generation of general purpose portable logic analyzers that offer performance and capabilities that were previously available only in higher priced modular logic analyzer systems. This application note will walk through measurement techniques and steps using the 16850 Series portable logic analyzers, as shown on the front cover or Figure 1.
Today’s digital designs involving FPGAs, System on Chip (SOC) ICs, and memory are increasing both in complexity and speed. Designers require tools that provide a way to trigger on a “symptom” and then look back in time with high speed timing capture to find the root cause of failure. In order to do this, there needs to be a way to distinguish between functional and timing related problems associated with a large number of signals as is typical in many of today’s embedded designs.
The same is true for tracking high-speed data buses with synchronous “state mode” capture and having a high-speed trigger sequencer to find specific system conditions. It’s also important to be able to trace out DDR2 and DDR3 memory address and control buses, and apply decoders, compliance tools and performance analysis tools. Finally, having both single-ended and true differential probing allows for the accurate capture of signals of interest in the evolving high speed differential interfaces.
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