Complex embedded systems often have multiple signals that need to be monitored in the time and frequency domains. Although the baseband digital, RF, and analog signals are interdependent, their relationships can often be elusive based on traditional debug methods. Feedback control of RF by a microcontroller, low-speed serial busses, critical timing relationships, as well as EMI and interference between RF and digital signals often plague the design in the prototype phase.  

A digital oscilloscope is often the tool of choice for unraveling problems with these signals, but many developers find themselves wishing for, or reaching for, additional instruments.  While this may eventually get the job done, it can be time- and expertise-intensive.  Consolidating functionality in a single instrument that spans the analog, digital, and frequency signals of the design can save time and reduce the level of expertise needed to close out a design and move to the next one.

In this article from Test and Measurement World, they describe the use of an oscilloscope, which has analog channels, logic channels, and multiple channels of frequency domain, to view and debug the diverse set of signals in a system and many important factors that come together for this to work.  

Read the whole article here!

How to perform multiple-domain measurements


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