恢复跟PWM出什么波形没关系，主要看TBCTR = 0 的时候，比较器是否还被触发。Blank window可以参考TRM的3.2.9节。
The DCAEVT1/2 and DCBEVT1/2 events can be filtered via event filtering logic to remove noise by optionally blanking events for a certain period of time. This is useful for cases where…
//*****************************************************************************
//
// single_ended.c - Example demonstrating how to configure the ADC for
// single ended operation.
//
// Copyright (c) 2010-2016 Texas Instruments Incorporated…
