基于双口RAM实现双核通信模块的驱动设计

摘要

The flexibility of process control is greatly affected by the relatively closed hardware architecture and limited amount of control parameters. It is a trend to develop a smart controller with open hardware architecture which can make it possible of control process network. With the use of Dual-Port RAM CY7C024AV2,A dual-core solution with DSP and ARM is presented,as long as the driver development under embedded Linux for the dual-core controller module. The driver presented provided software basis for intelligent network control methods. Experiment result shows that the driver can achieve a good performance on inter-core communication.%传统单核心控制器受制于硬件结构相对封闭,可控参数有限,一定程度上影响了工艺过程控制的灵活性。设计一种开放式的控制器,实现过程控制网络化是当今物联网发展的趋势。文章基于嵌入式Linux系统平台,使用高速双端口RAM芯片CY7C024AV2,提出一种模块化的DSP与ARM的双核通信模块方案及其驱动程序的设计,实现了控制器的双核数据通信功能,为控制器的网络智能控制建立了软件基础。实验证明,该驱动程序的支持下控制器的双核数据通信性能满意。