DE1-SoC-MyPlayer

The project aims to make DE1-SoC board a music player, which can play music from an SD card using the onboard WM8731 chip.

For more detailed information, check FPGA 开发笔记：DE1-SoC 音乐播放器的实现 - Nativus' Space (naiv.fun)(in Chinese | 中文文档).

Requirement

Tested on the following platform/software:

• Quartus Prime 18.0 on Windows 10
• Intel SoC FPGA Embedded Development Suite Standard 18.0 on Windows 10
• Ubuntu 14.04 LTS for DE1-SoC provided by Terasic's website
• FFmpeg

Before you give these codes a try, make sure you have the operating system and all the software installed correctly. Besides, please refer to DE1-SoC User Manual for setting up board to run Linux.

Hardware

To build sof file:

1. Open the soc_system.qpf with Quartus.
2. Click Compile Design to build sof file.
3. Use Programmer in Quartus to program the FPGA.

Note: if any change is made to Qsys design, the C header file must be regenerated. The software should also be re-compiled with the newly generated header so that it can work properly.

Software

The hardware part only establishes a base to play sounds with DE1-SoC, and the software is here to process the music data and configure the SoC to play correctly.

To build and run the software:

1. Open the SoC EDS Command Shell.
2. Change directory to the software folder, for example, cd ~/DE1-SoC-MyPlayer/software.
3. Type make clean to remove files generated by earlier builds, then type make.
4. If the building is successful, you can find MyPlayer binary file in the folder. Download it to the board.
5. Use chmod +x ./MyPlayer on board to give the binary permission to execute.
6. Type ./Myplayer filename to run the program. filename should be replaced with your own music filename.

Known Bugs

These codes still contain minor unresolved bugs, such as having noise when playing some music with a specific frequency.

Credits

Cited resources:

• Terasic VIP Demo：Terasic - DE Boards - Cyclone - DE1-SoC Board
• bsteinsbo/DE1-SoC-Sound (github.com)
• ffxx283/WM8731_Audio: FPGA Control WM8731 Audio codec (github.com)

And special thanks to my two workmates on this project.