目 录
前 言................. .............. .............. ........................... .............. ........................... ........................... .............. .............. 1
第一章 绪论................. .............. .............. ........................... .............. ........................... ................. .................... ...... 2
1.1 课题背景................................................................................................................................................................. 2
1.2 数控直流电流源概述............................................................................................................................................. 2
1.2.1
电流源简介
........................................................................................................................................................2
1.2.2
数控直流电流源的必要性
................................................................................................................................2
1.2.3
数控直流电流源简介
........................................................................................................................................3
1.3 课题进展................................................................................................................................................................. 3
1.4 后话......................................................................................................................................................................... 3
第二章 芯片简介................. .............. .............. ........................... .............. ........................... ........................... ......... 4
2.1 单片机芯片 MSP430F2274..................................................................................................................................... 4
2.2 D/A 芯片 TLC5615................................................................................................................................................... 5
2.2.1 TLC5615
功能简介
..............................................................................................................................................6
2.2.2 TLC5615
工作原理
..............................................................................................................................................7
2.3 ZLG7289A 芯片介绍................................................................................................................................................ 8
2.3.1
芯片简介
............................................................................................................................................................8
2.3.2
引脚说明
............................................................................................................................................................8
第三章 系统硬件设计................. .............. .............. ........................... .............. ........................... ........................... 10
3.1 总体方案设计与比较........................................................................................................................................... 10
3.2 单元电路设计....................................................................................................................................................... 11
3.2.1
电源电路
..........................................................................................................................................................11
3.2.2 D/A
电路
...........................................................................................................................................................12
3.2.3
恒流源电路
......................................................................................................................................................12
3.2.4
数码管显示电路
..............................................................................................................................................14
3.3 PROTEL 99SE 介绍................................................................................................................................................... 15
第四章 系统软件设计................. .............. .............. ........................... .............. ........................... ........................... 17
4.1 程序语言介绍....................................................................................................................................................... 17
4.1.1
机器语言
...........................................................................................................................................................17
4.1.2
汇编语言
...........................................................................................................................................................17
4.1.3
高级语言
...........................................................................................................................................................17
4.2 PID 算法介绍........................................................................................................................................................ 18
4.2.1 PID
增量式算法
................................................................................................................................................18
4.2.2 PID
位置算法
....................................................................................................................................................19
4.2.3
微分先行
PID
算法
...........................................................................................................................................20
4.3 C 语言程序设计流程............................................................................................................................................ 20
4.4 MSP430F2274 编程基础简介............................................................................................................................... 21
4.4.1
数据存储器和程序存储器地址空间
...............................................................................................................21
4.4.2 MSP430F2274
寄存器介绍
..............................................................................................................................21
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