摘要
为升级现有单片机系统并保证系统的重用性和集成性,设计了单片机和嵌入Linux的ARM基于SPI总线的数据通信系统。通过在原有系统上增加ARM,既可以提升系统的性能和功能,又相对地减少了升级系统的工作量,另外,通信速率高。文章介绍了系统硬件设计、单片机裸机程序设计以及Linux下驱动和用于测试驱动的应用程序设计。测试结果表明,系统稳定、可靠,具有实际工程应用价值。
Aiming at upgrading the existing MCU system and ensuring reusability and integration,this paper designs a data communication system of MCU and ARM-Linux based on SPI bus.Adding ARM to the original system not only improves performance and functionality of the system,but also reduces the workload of upgrading the system relatively.In addition,the communication rate is very high.The paper discusses the hardware design,the software design under MCU,the driver and application design under ARM-Linux.The test results show that the design is reliable and has practical value.
出处
《电子设计工程》
2013年第21期126-129,共4页
Electronic Design Engineering
基金
国家高技术研究发展计划资助(2011AA7033045)
