1、功能说明
    1、GTIM1 CH1 CH2 CH3 CH4输出频率相同占空比不同的PWM
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、端口配置：
            PA5选择为GTIM1的CH1输出
            PA1选择为GTIM1的CH2输出
            PA2选择为GTIM1的CH3输出
            PA3选择为GTIM1的CH4输出
        4、TIM：
            GTIM1 CH1 CH2 CH3 CH4周期相等，占空比不等
    使用方法：
        1、编译后打开调试模式，用示波器或者逻辑分析仪观察GTIM1 CH1 CH2 CH3 CH4的波形
        2、程序运行后，产生4路周期相等占空比不同的PWM信号
4、注意事项
无
    

1. Function description
    1. GTIM1 CH1 CH2 CH3 CH4 output frequency the same duty cycle different PWM
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. Port configuration:
            PA5 is selected as the CH1 output of GTIM1
            PA1 is selected as the CH2 output of GTIM1
            PA2 is selected as the CH3 output of GTIM1
            PA3 is selected as the CH4 output of GTIM1
        4. TIM:
            TIM3 CH1 CH2 CH3 CH4 has the same period, and the duty cycle is not equal
    Instructions:
         1. After compiling, turn on the debug mode, use an oscilloscope or logic analyzer to observe the waveforms of GTIM1 CH1, CH2, CH3, CH4
         2. After the program runs, 4 PWM signals with equal period and different duty cycle are generated
4. Attention
None
