This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

sai_peripheral

Overview

The SAI Demo application demonstrates complicated digital audio playback and record case. The demo provide these features below:

  1. Duplex audio transfer, record and playback at same time.

  2. Playback a 250 Hz sine wave data generated by CMSIS-DSP library. Also compute the fundamental frequency using Fast Fourier Transform with CMSIS-DSP library.

  3. Record a 5 seconds audio to sdcard with a FatFs system. After record, playback it. This feature may only existed in platform which support sdhc.

Supported Boards