摘要
智能电表系统中数据的有效存储和管理一直是系统设计的重点和难点,介绍了TMS320F240的DSP系统基本结构、I2C技术和非易失性存储器AT24LC256,对AT24LC256的存储空间进行合理的划分,确保了存储空间高效利用和管理;利用TMS320LF2407的I/O口实现了其与AT24LC256接口的虚拟I2C软件设计,并完成了智能电表系统中重要数据的保存。
How to store the data of electricity meter system effectively has been the difficulty and focus of study for its unique characteristic. The paper introduces the basic structure of TMS320F240,I2C bus and nonvolatile memory AT24LC25. In order to store and manage efficiently the data of the system, reasonable distribution of the profits is carried on. Discusses the simulating application of I^2C bus in this system,giving the software,and the important data is stored in AT24LC256.
出处
《微计算机信息》
2012年第6期102-104,共3页
Control & Automation
