Scheduling sporadic events by Lonnie VanZandt Sporadic events are the bugaboo of many real-time systems. Finding a way to manage aperiodic behavior can spell the difference between system failure and system success. This article presents the POSIX sporadic scheduling policy, which programmers can use to avoid critical deadline failures in overloaded systems.
Design for debugability by Tony Gray Hardware engineers employ all kinds of design reviews and processes, including design for manufacturability and design for testability. It's time software engineers stood up and asked for what they need most: design for debugability. Here's a list of ideas to make systems easier to debug.
Deadline timing analysis by Andrew Coombes Tasks running on an OSEK-compliant RTOS can be prioritized using deadline monotonic analysis. Here's a summary of the mathematics required to do so.
#include Beyond the RTOS Just as there are several ways of pluralizing RTOS, there are also several reasonable ways of doing without one. by Michael Barr
Programmer's Toolbox On getting it by Jack Crenshaw Being digital, embedded systems “think” in discrete time, but they interact with a continuous-time world. Jack's got the key to bridging that gap.
Beginner's Corner Introduction to digital filters by Brian Wagner and Michael Barr Finite impulse response (FIR) filters are the most popular type of filters implemented in software. This introduction will help you understand them both on a theoretical and a practical level.
Programming Pointers Enumerations as counters by Dan Saks Loops that step through enumerations can be very handy. With a little thought, you can make them clearer and more robust.
Break Points Promise management by Jack G. Ganssle There's a science to making promises and managing expectations. Your job may be on the line if you don't master the relevant techniques.
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