本文在介绍车载DVD 伺服控制系统的构成和设计原理的基础上,针对车载DVD伺服系统要求高精度、抗震动、快速响应的特点,采用了台湾ALI 公司生产的高度集成的DVD 驱动器专用伺服控制芯片M5705,并介绍了基于M5705 的嵌入式系统软件设计和车载DVD伺服系统应用软件的具体实现,并重点介绍了车载DVD 的伺服系统应用软件的设计。 关键词:车载DVD,伺服系统,嵌入式系统开发,M5705 Software Design and Implement of Vehicle Mounted DVD Servomechanism Wang Hui1, Liu Jinxing2, Bao Kejin1 (1. Jiangsu University, 2. Jiangsu University of Science and Technology ) Abstract: This article described the design principle and the constitution of the Vehicle mounted DVD servo system at the beginning, for the sake of the Vehicle mounted DVD servo system requires high precision, aseismatic and rapid response characteristics, this paper adopted appropriative servo chip M5705,which integrated highly, and introduced to design embedded system software and applied software of Vehicle mounted DVD servo system based on the M5705, and pay important attention to applied software of the Vehicle mounted DVD servo system. Keywords: Vehicle Mounted DVD;Servomechanism; Embedded system design; M5705