PWM输出实验，熟悉PWDM模块的基本原理及应用，使用PWDM6输出一个固定占空比的单边沿控制PWM信号，通过滤波电路实现DAC转换
EasyARM2200 平台，ADS1.2开发环境-PWM output experiment, familiar with the basic principles of PWDM modules and applications, the use of a fixed duty cycle output PWDM6 single-edge PWM control signal, through the filter circuit EasyARM2200 realize DAC conversion platform, ADS1.2 Development Environment
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