单片机开发论文2.docVIP

电子科技大学学士学位论文 PAGE \* MERGEFORMATI PAGE \* MERGEFORMAT20 PAGE \* MERGEFORMAT3 摘要 PAGE \* MERGEFORMATIII 摘要 DMX512灯光控制协议，广泛应用于智能灯光群控系统。电脑控制台将512个受控通道的数据，以广播方式在总线上实时发布，节点设备按通道地址依次解码，从而实现对节点设备进行各种功能的逻辑控制和伺服控制。 本论文主要通过详细分析DMX512灯光控制协议的传输特性及应用，并对RS-485接口技术进行细致的分析，再结合单片机技术来解决实现对DMX512信号的解码。 关键词：DMX512灯光控制协议、RS-485接口技术、单片机、解码 ABSTRACT ABSTRACT DMX512 lighting control protocol, widely used in intelligent lighting group control system. Computer console 512 controlled channel data broadcast on the bus real-time, node device in order according to the channel address decoding logic control and servo control of various functions in order to achieve the node device. In this thesis, mainly through a detailed analysis of DMX512 lighting control protocol transmission characteristics and detailed analysis, and RS-485 interface technology, combined with MCU technology to solve the DMX512 signal decoding. Key Words: DMX512 lighting control, RS-485 interface technology, MCU, decoding 目录 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc357707639 第1章 引言  PAGEREF _Toc357707639 \h 1  HYPERLINK \l _Toc357707640 1.1 课题背景  PAGEREF _Toc357707640 \h 1  HYPERLINK \l _Toc357707641 1.2 课题研究的价值及意义  PAGEREF _Toc357707641 \h 1  HYPERLINK \l _Toc357707642 1.3 课题的国内外研究现状  PAGEREF _Toc357707642 \h 2  HYPERLINK \l _Toc357707643 1.4 课题的难点、重点、核心问题及方向  PAGEREF _Toc357707643 \h 3  HYPERLINK \l _Toc357707644 第2章 研究的理论基础  PAGEREF _Toc357707644 \h 5  HYPERLINK \l _Toc357707645 2.1 DMX512协议  PAGEREF _Toc357707645 \h 5  HYPERLINK \l _Toc357707646 2.1.1 DMX512协议的发展历程  PAGEREF _Toc357707646 \h 5  HYPERLINK \l _Toc357707647 2.1.2 DMX512信号格式  PAGEREF _Toc357707647 \h 5  HYPERLINK \l _Toc357707648 2.1.3 信号的传输与设备连接  PAGEREF _Toc357707648 \h 8  HYPERLINK \l _Toc357707649 2.2 RS-485 标准  PAGEREF _Toc357707649 \h 11  HYPERLINK \l _Toc357707650 2.3 嵌入式处理器  PAGEREF _Toc357707650 \h 13  HYPERLINK \l _Toc357707651 2.3.1 嵌入式微控制器  PAGEREF