This demo shows computational capability of MKM34Z256 device in an audio processing application. An application for spectrum visualization has been created for a Windows tablet. Moreover, information about comparison of performance between ARM Cortex-M0+ with and without MMAU IP is being transferred to the host and visualized.
For serial port connection scanning of available serial ports is available on the host side application.
- Audio Spectrum window shows octave band audio spectrum of the input audio signal. The yellow coloured bar of the spectrum is computed with use of the MMAU-IP. Red bars show that computation is done with ARM Cortex M0+ instructions only.
- Performance comparison window shows differences between times needed for computation of octave audio spectrum for 1024 samples. Computation with MMAU IP is about 4.15x faster.
- Data Logger window shows incoming raw data from Kinetis M device.
MKM34Z256VLL7 MCU could be used in many various applications, not only metering.
High computational capability with use of the MMAU (Memory Mapped Arithmetic Unit) IP on MKM34
NXP Content: MKM34Z256VLL7