LED指示灯程序。应用于S3C44B0X ARM板上的LED测试，程序运行后，开发板上的三个LED指示灯会来回闪烁。 -This example project shows how to use the IAR Embedded Workbench for ARM to develop code for the Atmel AT91SAM9261 evaluation boards. It shows basic use of parallel I/O, timer and the interr