1、功能说明
    1、ATIM1触发DAC1生成锯齿波,复位值0x00,步进0x60

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 系列
          N32H785EC 系列
          N32H787 系列

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   M4:300M
            
        3、端口配置：
            PA4选择为模拟功能DAC1 OUT

        4、DAC配置：
            DAC1选择步进触发源"DAC_Trigger_ATIM1_TRGO"，DAC1复位触发源为"DAC_Trigger2_Software"
                递增锯齿波步进值60 复位值0x000.
            

    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; 利用示波器观察PA4输出波形
        2、全速运行时，可看到PA4输出递增的锯齿波.
        
4、注意事项
    无
    
1. Function description

    1, ATIM1 triggers DAC1 to generate a sawtooth wave, with a reset value of 0x000 and a step value of 60.

2. Development environment

    Software development environment: KEIL MDK-ARM V5.34
                                      IAR EWARM 8.50.1 
    Supported chips:
          N32H785 series
          N32H785EC series
          N32H787 series

3. How to use
   System Configuration:
        1. Clock source: HSI+PLL
        
        2. System Clock frequency: 
            M7核 : 600MHz   M4:300M
            
        3. Port configuration:
            PA4 is selected as analog function DAC1 OUT

        4. DAC:
            DAC1 selects the step trigger source "DAC_Trigger_ATIM1_TRGO", and the reset trigger source for DAC1 is "DAC_Trigger2_Software".
            The increment sawtooth step value is 60 and Reset value is 0x000.
     
Usage:
        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 and observe the output waveform of PA4 using an oscilloscope
        2. When running at full speed, you can see the increasing sawtooth wave output from PA4.


4. Attention
    None

