分层式结构的MVB通信控制器设计

Design of MVB Communication Controller Based on Hierarchic Structure

文中介绍了MVB工作流程,提出了MVB控制器的集成化设计方案。核心部分包含实现与应用系统进行数据交换的微控制器,实现数据编解码、检错和收发控制的复杂可编程逻辑器件(CPLD)和总线驱动器。通信系统的设计采用分层式结构,并基于单片机和CPLD设计通信从节点模块。该高速控制电路是一个能最大限度发挥单片机和CPLD性能的综合控制电路,具有高可靠性、高集成度和低功耗的特点。

The flow of work for Muhifunction Vehicle Bus （MVB） is introduced, and integrated design scheme of MVB Controller （MVBC） are presented in this paper. The main parts of this scheme include a microcontroller for data exchanging, a Complex Programmable Logic Device（CPLD） for the implementation of Encoder/Decoder, error detection and dispatch control and bus driver . Hierarchic Structure is used for communication system design. Sub-node communication models are designed based on MCU and CPLD structure. The performance of MCU and CPLD for integrated control circuit can be utilized to its limit.The system has the characteristic of high reliability, high integrity and low power sissipation