飞利浦ARM7之LPC2132的GPIO口操作程序，GPIO输出控制蜂鸣器的控制程序，让你轻松搞定ARM7的IO口操作与控制，方便你设计。-The Philips LPC2132 ARM7 GPIO port of the operating procedures, there are single IO input and output control program and a number of road IO input, output control procedures, and s