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STM32F7xxxx-Nucleo-144 boards with PolySynth code, FPU issues or code problem?

Question asked by Christopher Pappas on May 19, 2016
Latest reply on May 31, 2016 by Christopher Pappas
The LowPassFilter code seems to be producing transients whenever the cutoff frequency changes rapidly from fully open (1.0f) to fully closed (<0.04f).

Is there a way to debug the operations of the processors hardware FPU? I can't seem to understand where or how these spikes are happening? I am currently using Keil to compile, maybe there is another compiler that has a debugger for debugging the CPU's internal hardware FPU?

If anyone has any ideas or comments, please let me know.