摘要
AT91RM9200是Atmel公司生产的基于ARM920T核的高性能、低功耗的16/32位RISC(精简指令集计算机)微处理器,主要应用于工业控制方面。文中介绍了AT91RM9200型ARM9微处理器和基于该处理器的最小嵌入式系统的硬件设计,采用模块化的设计方法,并给出了最小系统中电源、晶振电路、复位电路、存储器模块、JTAG、UART等各主要模块的外围应用电路及其选型,最后给出了简单的硬件调试方法和结果。用户根据最小系统的设计方案进行适当增加便可轻易地开发出适合自己的嵌入式系统。
The ARM microprocessor AT91RM9200 is a high performance MCU produced by ATMEL, and it is used in industry control fields. This paper introduces the ARM microprocessor AT91RM9200. Base on AT91RM9200, a minimal system is designed, and it includes the power supply circuit, crystal generator circuit, reset circuit, register modules, JTAG interface, UART interface and so on. The selection of the periph- eral circuits is summarized. The method and result of debug are given at the end of the article. The users can design the embedded systems easily through the minimal system.
出处
《电子工程师》
2007年第4期71-73,共3页
Electronic Engineer
