主要是介绍lpc21XX系列开发板各部分的详细介绍，以及可以利用该开发板可做的一系列实验。-Is to introduce lpc21XX Series development board detailed descr iption of the various parts, and can use the development board to do a series of experiments.

根据lpc21xx定时器的功能用FPGA进行编程，可以实现他的相应功能。-According lpc21xx timer function with FPGA programming, he can achieve the corresponding functions.

lpc21xx数据使用手册，适合初学者查阅-lpc21xx user manual for beginners inspection