摘要：为了提高直流充电桩的集成度、稳定性与可靠性，降低成本，提出了使用MC9S12系列单片机作为控制系统主控制器的设计方案。本文着重介绍了使用MC9S12系列单片机作为主控MCU，用来设计直流双枪充电桩控制系统的具体方法，对各类串行数据交互、数字量与模拟量数据处理进行了详细分析说明。

关键词：MC9S12；充电桩；控制系统

Abstract: In order to improve the integration, stability and reliability of the DC charging pile and reduce the cost, a design scheme for the main controller of the control system using MC9S12 series of single chip microcomputer is put forward. This paper introduces the use of MC9S12 MCU as the