1、功能说明
    1、CAN1的发送和接收参考程序。


2、使用环境

    软件开发环境：KEIL MDK-ARM V5.25

    硬件环境：
        1、基于评估板N32WB45xL_EVB V1.1开发
        2、MCU：N32WB452LEQ6


3、使用说明
    
    系统配置；
    /* 描述相关模块配置方法；例如:时钟，I/O等 */
        SystemClock：144MHz
        USART：TX - PA9， RX - PA10，波特率115200
        CAN1： RX - PD8， TX - PD9，波特率500K，正常模式

    /* 描述Demo的测试步骤和现象 */
        1.编译后下载程序复位运行；
        2.查看串口打印信息，CAN1每隔1S发送一帧标准帧和一帧扩展帧
          串口将MCU接收到的数据帧打印出来
                     
                 
4、注意事项
    无

1. Function description
     1. The reference program for CAN1 sending and receiving.


2. Use environment

     Software development environment: KEIL MDK-ARM V5.25

     Hardware environment:
         1. Developed based on the evaluation board N32WB45xL_EVB V1.1
         2. MCU: N32WB452LEQ6


3. Instructions for use
    
     System Configuration;
     /* Describe the configuration method of related modules; for example: clock, I/O, etc. */
         SystemClock: 144MHz
         USART: TX-PA9, RX-PA10, baud rate 115200
         CAN1: RX-PD8, TX-PD9, baud rate 500K, normal mode

     /* Describe the test steps and phenomena of Demo */
         1. After compiling, download the program to reset and run;
         2. Check the serial port print information, CAN1 sends a standard frame and a data frame every 1S
           The serial port prints out the extended frame received by the MCU
                     
                 
4. Matters needing attention
     without