A logic analyzer is commonly used for debugging embedded systems but is it really the right tool for this purpose? What if I’m not seeing all the data? Click through this interactive presentation below and you’ll find some interesting things…
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They both increase visibility on embedded systems, but what are they good at?
In the world of general-purpose equipment used to troubleshoot embedded systems, oscilloscopes hold a central place, as ‘all-around’ tool for all kinds of embedded systems. Digital and mixed-signal oscilloscopes sometimes provide high-level functionalities – such as protocol decoding.
Still, from physical layer to application software, debugging (and verifying, and testing, …) embedded system will likely require ‘more than just a scope’. Byte Paradigm recently investigated the reasons why engineers use other types of general-purpose equipment. We were especially interested in the technical value of digital data logger for embedded system debugging. Figure 1 below summarizes the main findings.
These results originate from systematic informal discussions with visitors at the 2012 editions of Embedded World (Nuremberg, Germany) and Design West (San Jose, USA).
Figure 1: Overlapping areas show that tools are often used interchangeably or together.
Colored arrows show the main reasons why a user would prefer to switch from one Type of equipment to another. Some intersecting areas are labeled with frequently-mentioned tool use.