The 12 bit buildin A/D convertor is used to acquire the control signal the capture function of Timer _A is used to get synchronous information,the PWM outputs of Timer _B are used to generate voltage wave.

• 采用内建的 12位 A/D转换器采集控制量 ,利用定时器 A的捕获功能取得同步信息 ,通过定时器 B的 PWM输出实现波形产生。