一个简单串口编程的示例代码，可以用作参考。-a simple example for com program.

win2000,xp下操作端口的源码,为在win2000,xp下编程提供端口操作.有利于PCI卡的集成.主要用于交能,银行等.-win2000, xp port of the source operation, for win2000, xp to provide port operations under the program. conducive to the integration of PCI cards. can be used to pay and banking.

this c file is used to test the port pin funcion of lpc 2148