1、功能说明

    此示例展示CM4内核下FIR DMA计算方式

2、使用环境
    软件开发环境： KEIL MDK-ARM V5.34
                   IAR EWARM 8.50.1

    芯片支持：
        N32H785
        N32H785EC
        N32H787

3、使用说明
    系统配置；
        1、时钟源： HSI+PLL
        2、系统时钟频率：
            M7核 600MHz  M4核 300MHz
        3、打印：PB10 - baud rate 115200
        4、DMA:
            通道0：从FMAC读取计算结果
            通道1：写数据到FMAC

    使用方法：
        1、将78x的GPIO的LedBlink demo和当前CM4的工程程序分别编译后下载到开发板并复位运行。
        2、通过比较reference_data和calculated_data之间的差异来验证过滤效果。
        3、通过串口输出运行信息。

4、注意事项
    无
    
    
1. Function description
    This example shows how FIR is calculated by DMA in the condition of CM4.
    

2. Development environment
    Software development environment: KEIL MDK-ARM V5.34
                                      IAR EWARM 8.50.1

    MCU support:
        N32H785
        N32H785EC
        N32H787

3. How to use
    System Configuration:
        1. Clock source: HSI+PLL
        2. System Clock frequency: 
            M7 Core：600MHz  M4 Core：300MHz
        3. printf: PB10 - baud rate 115200
        4、DMA:
            Channel 0: FMAC read
            Channel 1: FMAC write

    Instructions:
        1. Compile the LedBlink demo for 78x's GPIO and the current CM4 project program respectively, 
           then download them to the development board and reset to run.
        2. The filtering effect can be verified by comparing the difference between the reference_data 
           and the calculated_data.
        3. The running informations are output through the serial port.

4. Attention
     None