1、功能说明
    1、GTIM1 CH2捕获引脚通过CH1下降沿和CH2上升沿计算占空比和频率
2、使用环境
    软件开发环境：KEIL MDK-ARM 5.34
                  IAR EWARM 8.50.1
    硬件开发环境：
        基于全功能板N32H497ZGL7_EVB V1.0开发
3、使用说明
    系统配置:
        1、时钟源：HSI+PLL
        2、时钟频率：
            240MHz
        3、中断：
            GTIM1 CC2比较中断打开
        4、端口配置：
            PA1选择为GTIM1 CH2输入
            PA3选择为IO 输出
        5、TIM：
            GTIM1 CH1下降沿捕获CH2信号，CH2上升沿捕获CH2信号
    使用方法：
        1、编译后打开调试模式，连接PA3与PA1，将Frequency、DutyCycle添加到watch窗口
        2、程序运行后，PA3发送的脉冲数据可以被捕获到占空比和频率到变量
4、注意事项
无
    

1. Function description
     1. GTIM1 CH2 capture pin calculates the duty cycle and frequency through the falling edge of CH1 and the rising edge of CH2
2. Use environment
    Software development environment: KEIL MDK-ARM 5.34
                                      IAR EWARM 8.50.1
    Hardware development environment:
        Developed based on the full-function board N32H497ZGL7_EVB V1.0
3. Instructions for use
    System Configuration;
        1. Clock source: HSI+PLL
        2. Clock frequency: 
            240MHz
        3. Interruption:
            GTIM1 CC2 compare interrupt is turned on
        4. Port configuration:
            PA1 is selected as GTIM1 CH2 input
            PA3 is selected as IO output
        5. TIM:
            GTIM1 CH1 falling edge captures CH2 signal, CH2 rising edge captures CH2 signal
     Instructions:
         1. After compiling, open the debug mode, connect PA3 and PA1, and add Frequency and DutyCycle to the watch window
         2. After the program runs, the pulse data sent by PA3 can be captured to the duty cycle and frequency to the variable
4. Attention
None
