1、功能说明
    1、ADC采样转换PC2引脚的模拟电压，如果超过模拟看门狗定义的阈值范围，则跳入中断程序
2、使用环境
    软件开发环境：  KEIL MDK-ARM V5.26.2.0
    硬件环境：         基于N32G43XRL-STB V1.0开发
3、使用说明
    系统配置；
        1、时钟源：
            HSE=8M,PLL=108M,AHB=108M,APB1=27M,APB2=54M,ADC CLK=108M/16,ADC 1M CLK=HSE/8
        2、ADC：
            ADC连续转换、软件触发、12位数据右对齐，转换PC2引脚的模拟电压数据
        3、端口配置：
            PC2选择为模拟功能ADC转换通道8
        4、中断：
            ADC模拟看门狗中断打开，抢断优先级0，子优先级0
    使用方法：
        1、编译后打开调试模式，将变量gCntAwdg添加到watch窗口观察
        2、改变PC2引脚电压值，当电压值超出模拟看门狗定义的0x300到0xB00范围外，则进入一次中断，变量做累加操作
4、注意事项
    当系统采用HSE时钟时（一般HSI也是打开的），RCC_ConfigAdc1mClk(RCC_ADC1MCLK_SRC_HSE, RCC_ADC1MCLK_DIV8)可以配置为HSE或者HSI
    当系统采样HSI时钟时（一般HSE是关闭的），RCC_ConfigAdc1mClk(RCC_ADC1MCLK_SRC_HSI, RCC_ADC1MCLK_DIV8)只能配置为HSI




1. Function description
    1. The ADC samples and converts the analog voltage of the PC2 pin. If it exceeds the threshold range defined by the analog watchdog, it will jump into the interrupt program
2. Use environment
    Software development environment: KEIL MDK-ARM V5.26.2.0
    Hardware environment: Developed based on the development board N32G43XRL-STB V1.0
3. Instructions for use
    System Configuration;
        1. Clock source:
            HSE=8M,PLL=108M,AHB=108M,APB1=27M,APB2=54M,ADC CLK=108M/16,ADC 1M CLK=HSE/8
        2. ADC:
            ADC configuration: continuous conversion, software trigger, 12-bit data right-aligned, convert the analog voltage data of PC2 pin
        3. Port configuration:
            PC2 is selected as analog function, ADC conversion channel 8
        4. Interrupt:
            ADC analog watchdog interrupt enable, steal priority 0, sub priority 0
    Instructions:
        1. After compiling, open the debug mode and add the variable gCntAwdg to the watch window to observe
        2. Change the voltage value of the PC2 pin. When the voltage value exceeds the range of 0x300 to 0xB00 defined by the analog watchdog, it will enter an interrupt and the variable will be accumulated.
4. Attention
    When the system uses the HSE clock (HSI is generally enabled), ), RCC_ConfigAdc1mClk (RCC_ADC1MCLK_SRC_HSE, RCC_ADC1MCLK_DIV8) can be configured as HSE or HSI
    When the system uses the HSI clock(HSE is generally disabled), RCC_ConfigAdc1mClk(RCC_ADC1MCLK_SRC_HSI, RCC_ADC1MCLK_DIV8) can only be configured as HSI