摘要
提出了利用双口RAM实现DSP与PC机并行接口的设计方案,以使双方高速通信。介绍了双口RAM器件CY7C025的原理与使用规则。并针对方案,给出了接口电路和软件流程。针对二者交换数据的仲裁方式,提出了三种解决冲突争端的方法。
A method of dual-port RAM used in the interface between Digital Signal Processors and PC is presented,in order to make sure the DSP communicating with PC in a high speed. The principle and operating rule of CY7C025 is introduced. According to the design,the interface circuit and flow chart is also presented. Three methods are discussed to prevent the conflict of two sys-tems,according to the way to exchanging the data between both sides.
出处
《微计算机信息》
北大核心
2008年第5期141-142,共2页
Control & Automation
