基于BF561平台的多串口通信设计与实现

Design and Application of The Multiple Serial Port Communication Based on BF561 Platform

针对目前嵌入式处理器的外设使用串口通信越来越多、出现了串口不够用的情况,提出了一种基于BF561平台的多串口通信的设计与实现方案。系统选择双核处理器ADSP-BF561为控制中心,以u Clinux为系统软件平台,使用TI公司的异步串行通信芯片TL16C554,采用中断共享的方式来设计和实现多串口通信,节省了宝贵的中断资源。该设计方案成功应用在无线传感器网络实际项目中。

In view of using more and more serial com munication at present and even not enough serial port for embedded processor connected peripherals, this paper proposes multiple serial port communication design and implementation based on BF561 platform. With dual-core processor ADSP-BF561 as control core and u Clinux as system software platform, we used asynchronous serial communication chip TL16C554 by TI Co.Ltd, adopting the way of sharing interrupt to design and realize the multiple serial communication save valuable interrupt resources. This scheme was successfully applied to the field of wireless sensor networks for practical project.