说明：  加入滤波器这一个模块，编译，下载，同样也是加一个周期信号，频率分别选在100Hz,9K Hz,11K Hz,100 KHz，看输出的结果是否跟理论值相同。实际的结果为：当输入信号的频率为100Hz时,输出几乎和输入一模一样 当输入信号的频率分别为9KHz和11KHz时,输出波形大致与输入相同,峰峰值都比输入小,而且11KHz对应的峰峰值衰减得更厉害一些 而当输入频率为100KHz的信号时,输出只有零点几伏的变化幅度,可以认为输出为零。
(Add filter this module, compile, download, is also adding a periodic signal, frequency of elections in the 100Hz, 9K Hz, 11K Hz, 100 KHz, to see whether the results of the output with the theoretical value of the same. The actual results: when the input signal frequency is 100Hz, the output and input is almost exactly the same when the input signal frequency 9KHz and 11KHz respectively, the output and input waveform roughly the same peak smaller than the input and the corresponding 11KHz more severe attenuation peak number and when the input signal frequency is 100KHz, the output changes only the magnitude of a few tenths of volts, the output can be considered zero.)