说明：  IAR Embedded Workbench for ARM 是IAR Systems 公司为ARM 微处理器开发的一个集成开发环境（下 面简称IAR EWARM）。比较其他的ARM 开发环境，IAR EWARM 具有入门容易、使用方便和代码紧凑等 特点。故在这里介绍给打算学习使用或正在使用ARM 芯片的朋友们共同探讨。
(IAR Embedded Workbench for ARM is the IAR Systems ARM microprocessor development company for an integrated development environment (below referred to as IAR EWARM). ARM development environment compared to other, IAR EWARM has started is easy, convenient and compact code, and so on. Therefore, in this study to introduce the use or intended use of ARM chips are friends to discuss.)