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TMS320F28379D: PWM同步

Part Number: TMS320F28379D

外部比较器产生的脉冲经过TZ引脚进入DSP,为了避免干扰如何设置信号的窗口时间进行滤波后对PWM信号进行复位,其中通过DCEVTFILT设置blank 时间进行滤波,但是BLANK的偏移时间以TBCLK=0或者TBCLK=TBPRD为基准,在变频应用中无法确定,还有什么办法能够对输入信号进行30ns的滤波。