基于DC10的串口扩展编程

摘要

Taxi vehicle intelligent terminal project is a project based on linux system and android and mainly use serial communications. Due to the shortage of the number of serial in the taxi vehicle intelligent terminal project, we extand serial by using DC10 board and realize receiving and forwarding intelligent vehicle terminal host and some peripheral serial data. Forwarding data cannˊt basically go wrong by a large of real vehicle tests during a day of opetations. Itˊs completely used in practical application that serial expansion system based on STM32F103RCT6 and uc/os ii operating system in the design.%出租车车载智能终端项目是一个linux系统和安卓的一个项目，主要运用到的就是串口通信。本课题针对该系统中的串口数目不足的问题，设计了基于STM32F103RCT6微控制器和uc/os ii操作系统的串口扩展系统。采用上海大潮电子技术有限公司设计的一款基于STM32RCT6的串口扩展板DC10进行串口扩展，实现车载智能终端主机和一些外设串口数据的接收和转发。详细描述了扩展系统的软硬件设计。通过大量的实车测试，在出租车的一天运营过程中，转发数据基本不会出错，完全可以用于实际应用。