Using Frame-Based Processing for Computation in Simulink

 This video is the second in a series on using frame-based processing in Simulink. This part focuses on using frame-based processing in computational blocks, specifically the delay operator, which is where the frames vs. samples behavior can cause the most confusion. 

The example shown is a simple discrete time integrator or accumulator driven by a sine wave stimulus. We show how there are at least four possible correct outputs in such a configuration depending on how you configure input processing in the model. Finally, we show how you can encounter the dreaded algebraic loop when using frames in a system that employs feedback, e.g., an IIR filter, and we explain the downsides. In a follow-on video, we'll show how to address the frame-based algebraic loop issue to achieve maximum performance.