1、功能说明

    此例程展示了作为从机使用I2C收发数据。   

2、使用环境

   软件开发环境：
        IDE工具：KEIL MDK-ARM 5.34.0.0
	         IAR EWARM 8.50.1
    
    硬件环境：
        开发板：N32A003F5QX-STB V1.0


3、使用说明
	
    1、主时钟：48MHz
    2、I2C 配置：
            SCL   -->  PA4          
            SDA   -->  PA5         
            CLOCK:100KHz
            
    3、UART1配置：
            TX  -->  PA2   
            RX  -->  PA3          
            波特率：115200
        

    4、测试步骤与现象
        a，跳线连接主机I2C
        b，编译下载代码复位运行
        c，从串口看打印信息，验证结果

4、注意事项
    1. SCL及SDA必须接上拉;
    2. I2C从机地址不要使用 0xF0 ；

1. Function description

     This example demonstrates the use of I2C as a slave to send and receive data.

2. Use environment

    Software development environment:
         IDE tool: KEIL MDK-ARM 5.34.0.0
    
     Hardware environment:
         Development board: N32A003F5QX-STB V1.0


3. Instructions for use

     1. Main clock: 48MHz
     2. I2C configuration:
             SCL --> PA4          
             SDA --> PA5         
             CLOCK: 100KHz
            
     3. UART1 configuration:
             TX --> PA2
             RX --> PA3
             Baud rate: 115200
        

     4. Test steps and phenomena
         a, the jumper wire connects the master I2C
         b, compile and download the code, reset and run
         c, view the print information from the serial port and verify the result

4. Matters needing attention
     1. SCL and SDA must be pulled up;
     2. Do not use 0xF0 as the I2C slave address.