meriac/tt05-play-tune

Plays a tune over a piezo speaker connected to GPIO pins

TinyTapeout tt05: Super Mario Tune on A Piezo Speaker

Overview

This Verilog chip design is made for the TinyTapout tt05 shuttle. It will play the Super Mario Tune over a Piezo Speaker connected across uio_out[1:0]. The speaker is driven in differential PWM mode to increase its output power.

Listen To The Generated Sound

Listen to the Verilog Simulation PWM output for 100kHz clock frequency here.

Chip Design of the Super Mario Tune player

(see also the interactive version of this design)

Verilog Design Files

• Playback Logic
• Autogenerated Super Mario Tune Storage. This project contains a Python-based script for converting a RTTL ringtone into optimized Verilog. An additional script converts TIM-file waveforms from the Verilog simulator back to a WAV-sound file to verify the correctness of the hardware-based player's sound.

Waveform of Verilog Simulation Output

Using GTKWave for visualization of Simulation Results:

How To Test

Provide 100kHz clock on clk, briefly lower reset (rst_n) and uio_out[1:0] will play a differential sound wave over piezo speaker (Super Mario Tune).

External Hardware Required

Piezo speaker connected across uio_out[1:0]