绪 论
1 引言 2
2 题目的背景和意义： 3
第一章 方案论证及设计 4
1.1 项目要求： 4
1.1.1 任 务 4
利用凌阳单片机设计一个用于8路模拟信号采集与传输系统。 4
1.1.2 要 求 4
1.2方案论证 5
1.3 系统介绍 6
图1.3系统图 6
1.4 SPCE061A单片机概述 7
1.4.1 芯片的引脚排列和说明 8
1.4.2 特性 9
1.5 功能介绍 10
1.5.1 CPU 10
1.5.2存储器 11
1. RAM 11
2.闪存（Flash）ROM 11
1.5.3 系统时钟 11
1.5.4 实时时钟（32768Hz） 11
1.5.5 锁相环(PLL，Phase Lock Loop)振荡器 11
1.5.6模数转换器 (ADC,Analog to Digital Converter) 与数/模转换器（DAC,Digital to Analog Converter） 12
1.5.7定时器/计数器（Timer/Counter） 12
1.5.8 通用异步串行接口UART 15
第二章 单元电路设计 16
2.1 电源转换电路设计 16
2.1.1. 直流稳压电源的基本原理 电源的组成分为三个部分：交流电变换部分，整流部滤波部分，稳压部分由于所需的直流电压比起电网的交流电压在数值上相差很大，可用变压器来变换电压使其降为合适的直流。基本框图如下。 16
2.1.2各部分的作用 16
2.1.3稳压器的应用及注意事项 17
2.1.3三态固定输出集成稳压器的特点 17
2.1.4 设计思路 18
2.2 下载电路设计 19
2.3采集电路设计 22
2.4传输系统设计 24
2.4.1串，并行传输比较 24
2.4.2本系统方案 25
2.5 调制解调部分设计 26
2.6模拟信道的设计 27
2.7显示电路的设计 28
第三章:原理图设计 31
3.1 原理图设计步骤 31
3.1.1 设置原理图设计环境 31
3.1.2 放置元件 31
3.1.3 原理图步线 31
3.1.4 编辑与调整 31
3.1.5 检查原理图 31
3.1.6 生成网络表 32
3.2 元件图的设计 32
第四章 印制电路板设计 33
4.1 PCB设计 33
4.1.1 板框导航 33
4.1.2 建立PCB文件 33
第五章：系统检测 35
总 结 36
致 谢 37
参考文献 38
Introduction
1 Introduction 2
2 Background and significance of topics: 3
Chapter programs and design of four demonstration
1.1 Project requirements: 4
1.1.1 Task 4
Sunplus microcontrollers designed for the use of an 8-channel analog signal acquisition and transmission system. 4
1.1.2 Requirement 4
1.2 Demonstration on 5
1.3 System Introduction 6
Figure 1.3 Diagram 6
1.4 SPCE061A MCU Overview 7
1.4.1 chip pinout and description of eight
1.4.2 Characteristics of 9
1.5 Functions 10
1.5.1 CPU 10
1.5.2 Storage 11
1. RAM 11
2. Flash memory (Flash) ROM 11
1.5.3 System Clock 11
1.5.4 Real-time clock (32768Hz) 11
1.5.5 Phase-Locked Loop (PLL, Phase Lock Loop) oscillator 11
1.5.6 Analog to Digital Converters (ADC, Analog to Digital Converter) with a number of D / A converter (DAC, Digital to Analog Converter) 12
1.5.7 Timer / counter (Timer / Counter) 12
1.5.8 Universal Asynchronous serial interface UART 15
Chapter II cell circuit design 16
2.1 The power conversion circuit 16
2.1.1. DC power supply composed of the basic principles of the power supply is divided into three parts: the AC conversion part of the Ministry of filtering part of the rectifier, regulator partly due to the required DC voltage AC voltage than the power grid on a big difference in the value of that can be used to transform voltage transformer so that it reduced to the appropriate DC. The basic block diagram is as follows. 16
2.1.2 The role of the various parts of 16
2.1.3 Regulators of the application and note 17
2.1.3 Three-state with a fixed output voltage regulator features an integrated 17
2.1.4 design idea 18
2.2 download the circuit design 19
2.3 Acquisition Circuit Design 22
2.4 Transmission System Design 24
2.4.1 string, parallel transmission compared 24
2.4.2 The system program 25
2.5 Design of modulation and demodulation part 26
2.6 Design of an analog channel 27
2.7 Display Circuit Design 28
Chapter III: Schematic Design 31
3.1 Schematic design of the steps 31
3.1.1 Setting the schematic design environment 31
3.1.2 place the components 31
3.1.3 Step schematic line 31
3.1.4 Editing and Adjustment 31
3.1.5 Check schematic diagram 31
3.1.6 build network table 32
Figure 3.2 Component Design 32
Chapter IV Printed Circuit Board Design 33
4.1 PCB Design 33
4.1.1 Frame Navigation 33
4.1.2 the establishment of PCB files 33
Chapter V: The system detected 35
Summary 36
Thanks 37
References 38
