1、功能说明

    SQRT执行一次开方操作，通过串口发送平方根。 


2、使用环境

    软件开发环境：KEIL MDK-ARM V5.34.0.0
                  IAR EWARM 8.50.1
    硬件开发环境：
            基于评估板N32G033K8Q7-1_STB V1.0开发


3、使用说明

    系统时钟配置如下：
    - 系统时钟 = 64MHz
    
    UART配置如下：
    - 波特率 = 115200 baud
    - 字长 = 8数据位
    - 1停止位
    - 校验控制禁用
    - 接收器和发送器使能
    
    UART引脚连接如下：
    - TX - PA9，RX - PA10

    测试步骤与现象：
    a，编译下载代码复位运行
    b，计算5的开方，串口打印结果2；


4、注意事项


1. Function description

    SQRT performs a square root operation and sends the square root through the serial port.

2. Development environment

    Software development environment: KEIL MDK-ARM V5.34.0.0
                                      IAR EWARM 8.50.1
    Hardware development environment:
            Developed based on the evaluation board N32G033K8Q7-1_STB V1.0

3. How to use

    The system clock configuration is as follows:
    -System clock = 64MHz
    
    The UART configuration is as follows:
    -Baud rate = 115200 baud
    -Word length = 8 data bits
    -1 stop bit
    -Verification control disabled
    -Receiver and transmitter enable
    
    The UART pin connections are as follows:
    - TX - PA9, RX - PA10, baud rate 115200

    
    Test steps and phenomena:
    A. Compile download code reset run
    B. Calculate the square root of 5 and print the result through serial port at 2


4. Attention
