It implements an IIR filter in distributed arithmetics

基于fpga的IIR和FIR滤波器实现，里面有DA和AD模块，已经下载到板子上验证。-IIR and FIR filter fpga-based implementation, which has DA and AD modules have been downloaded to authenticate to the board.

该工程是信号经过ADS8326采集后，经过一个10阶带通IIR滤波器后，再经过10阶的带阻IIR滤波器，最后经过tlv5638输出。也可以选择信号经过AD采集后，直接送到DA输出。-The project is the signal after the ADS8326 collection, after a 10-order bandpass IIR filter, and then after 10 order bandstop IIR filter, and finally through

采用一种基于FPGA的IIR数字滤波器的设计方案：AD转换模块、IIR滤波模块、DA转换模块。(A design scheme of IIR digital filter based on FPGA is adopted: AD conversion module, IIR filter module and DA conversion module.)