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28335的epwm模块有没有单次触发的模式,每次仅生成1个脉冲,脉冲宽度可调
你可以设置F28335的epwm模块输出一个你所需要的PWM波,同时设置epwm的中断,在中断程序中强制PWM引脚输出高或者低,使其在输出一个脉冲后停止输出。