基于51单片机内核的空气净化的软件程序，能实现红外遥控通信，和LCD显示。-Based on air purification for the kernel of 51 single-chip microcomputer software program, can realize the infrared remote control communications, and LCD display.

基于ip核的fir滤波器设计，调用了ip核，并实例化，对初学者很有用。-Based on the ip kernel fir filter design, call the ip kernel, and instantiation, very useful for beginners.