MG32F157 Standard Peripherals Firmware Library
SPI1 I2S_PlayAudio example
  ****************** (C) COPYRIGHT 2023 Megawin Technology *******************
  * @file    SPI/I2S_PlayAudio/readme.txt 
  * @author  Megawin Application Team
  * @version V0.0.4
  * @date    16-June-2023
  * @brief   Description of the SPI1 I2S Playaudio example.
  ******************************************************************************
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, MEGAWIN SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
  * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM
  * THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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Example Description

This example describes how to play audio using the I2S module:

In this example, Main clock is from PLL clock and it is configured at 96MHz. The PLL clock is based on 8MHz HSE. APB1 clock is the 2 frequency division of the Main clock, APB2 clock is from Main clock.

In this example, the ES8316 chip is used to play the audio. When this example is run, the relevant information is printed out through UART1. When the audio plays, you will hear "left channel" in the left channel and "right channel" in the right channel. The audio sampling frequency in this routine is 22050Hz.

Directory contents
  • SPI/I2S_PlayAudio/I2S_PlayAudio.uvprojx MDK5 project file
  • SPI/I2S_PlayAudio/I2S_PlayAudio.uvoptx MDK5 project options file
  • SPI/I2S_PlayAudio/JLinkSettings.ini Jlink settings file
  • SPI/I2S_PlayAudio/main.c Main program
  • SPI/I2S_PlayAudio/drv_es8316.c ES8316 Driver source file
  • SPI/I2S_PlayAudio/drv_es8316.h ES8316 Driver header file
Hardware and Software environment
  • Hardware environment
    • HSE crystal is 8MHz
    • SPI1 (PB12, PB13, PB15, PC6) is connected to ES8316 serial port
How to use it ?

In order to make the program work, you must do the following :

  • Open I2S_PlayAudio.uvprojx from this example folder by Keil MDK5
  • Rebuild all files and load your image into target memory
  • Run the example

    © COPYRIGHT 2023 Megawin Technology