ARM is a microprocessor with powerful transaction processing capabilities that can be used with embedded operating systems The biggest advantage of ARM is fast speed, low power consumption, high chip integration, most ARM chips can be counted as SOC, basically coupled with the peripheral power supply and driver interface can be made into a small system, embedded system based on ARM core processor with its own rich resources, low power consumption, low price, support for the sake of many manufacturers. It is increasingly used in various embedded systems that require complex control and communication functions. At present, the microprocessor using ARM core, that is, we usually refer to the ARM microprocessor, has been widely used in industrial control, consumer electronics, communication systems, network systems, wireless systems and other product markets, microprocessor applications based on ARM technology occupy more than 75% of the market share of 32-bit RISC microprocessor. ARM technology is gradually infiltrating into all aspects of our lives.