参考: STM32的PWM输入模式设置并用DMA接收数据 Input capture mode The input stage samples the corresponding TIx input to generate a filtered signal TIxF. Then, an edge detector with polarity selection generates a signal (TIxFPx) which can be used as trigger input by t
参考 :STM32输入捕获模式设置并用DMA接收数据 PWM input mode This mode is a particular case of input capture mode. The procedure is the same except: Two ICx signals are mapped on the same TIx input. These 2 ICx signals are active on edges with opposite polarity. On