1、功能说明

	1、I2S 主模式通过中断发送数据

2、使用环境

	/* 软件开发环境：当前工程使用的软件工具名称及版本号 */
	IDE工具：KEIL MDK-ARM 5.30.0.0

	/* 硬件环境：工程对应的开发硬件平台 */
	开发板：N32G030CL-STB V1.0 V1.1

3、使用说明
	
	/* 描述相关模块配置方法；例如:时钟，I/O等 */
	1、SystemClock：48MHz
	2、GPIO：（主模式 DEMO 板）I2S1: WS--PA4、CK--PA5、SD--PA7
		     （从模式 DEMO 板）I2S1: WS--PA4、CK--PA5、SD--PA7
	3、中断：I2S1 中断入口函数 SPI1_IRQHandler

	/* 描述Demo的测试步骤和现象 */
	1、编译后下载程序复位运行；
	2、从模式 DEMO 板进入调试模式，先按住主模式 DEMO 板复位键，然后从模式 DEMO 板全速跑，
	   再松开主模式 DEMO 板复位键。

4、注意事项
	需要两块 demo 板配合，一块板子烧录主模式程序，一块板子烧录从模式程序，两块板子需一起上电，连接两块板子的 VCC 和 GND



1. Function description

	1. I2S master mode sends data by interrupt

2. Use environment

	/* Software development environment: the name and version number of the software tool used in the current project */
	IDE tool: KEIL MDK-ARM 5.30.0.0

	/* Hardware environment: the development hardware platform corresponding to the project */
	Development board: N32G030CL-STB V1.0 V1.1

3. Instructions for use

	/* Describe related module configuration methods; for example: clock, I/O, etc. */
	1. SystemClock: 48MHz
	2. GPIO: (main mode DEMO board) I2S1: WS--PA4, CK--PA5, SD--PA7
	Slave mode DEMO board) I2S1: WS--PA4, CK--PA5, SD--PA7
	3. Interrupt: I2S1 interrupt entry function SPI1_IRQHandler

	/* Describe the test steps and phenomena of the Demo */
	1. After compiling, download the program to reset and run;
	2. Enter the debug mode on the slave mode DEMO board, first press and hold the reset button of the master mode DEMO board,
	   and then run the slave mode DEMO board at full speed,Release the DEMO board reset button in the main mode again.

4. Matters needing attention
	Two demo boards are required, one board to program the master mode program, one board to program the slave mode program, 
	the two boards need to be powered on together, and connect the VCC and GND of the two boards