摘要
介绍了基于I2C总线的电子实时日历时钟PCF8583芯片的内部结构特点与重要寄存器。描述了它在学生公寓智能电能管理系统中与TMS320LF2407ADSP的硬件接口电路,以及通过DSP的2个通用I/O口来模拟I2C总线实现对PCF8583读、写的软件程序设计方案,并说明了采用软件解决PCF8583年扩展问题的具体方法。实践证明,本设计方案运行可靠、效果良好,可为其他控制系统设计提供借鉴。
In this paper, the configuration and important registers in clock chip PCF8583 based on I2C Bus are introduced, hardware interface circuit with TMS320LF2407 DSP in intelligent power management system for student＇ s dormitory is presented, and software implementation for simulation of reading and writing PCF8583 by I2C Bus with two general-purpose I/O ports of DSP is described .The specific software solution about extension of year is described. The practice shows that the design runs reliably and has good effects, provideing references to other control system.
出处
《无线电工程》
2007年第7期52-54,共3页
Radio Engineering
