嵌入式微处理器正越来越广泛的应用在生产生活的各个领域,但是传统的嵌入式微处理器要么是8位的处理器,性能有限,要么是32位基于ARM的微处理器在使用上需要嵌入式操作系统的支持,比如Linux操作系统,使得系统不够精炼。这一情况直到ARM公司推出Cortex-M内核才得以改善,它无需操作系统,可以像单片机一样使用KeilC语言进行编程,极大的减少了开发者的工作量。-Embedded microprocessor is more widely used in the production of all areas of life, but the traditional embedded microprocessor either 8-bit processor, performance is limited, either 32-bit ARM-based microprocessor need to use embedded operating system support, such as the Linux operating system, making the system is not refined enough. This situation to improve until the ARM launched the Cortex-M cores, it does not require the operating system, like microcontroller use KeilC language programming, which greatly reduces the workload of the developers.