Description
This board demonstrates how to add audio playback to any application using a generalpurpose ST7 microcontroller. The audio player demonstration board reconstructs audio signals through the PWM of the ST7FLITES2 microcontroller, and a serial Flash is used to store the audio data in a binary file format. Once the data is stored, the microcontroller reads it through an SPI interface and generates the sound using the PWM feature. A sixth order low-pass filter removes any unwanted high-frequency components from the signal before passing it to a speaker. STEVAL-ICV001V1

Features
■ 1% calibrated on-chip RC oscillator
■ Low-voltage detector (LVD) on chip
■ Small footprint
■ Low-power operation
■ Supports lower density serial Flash if fewer messages needed