目录
1.绪论 ................................................................................................................................1
1.1 基本内容..................................................................................................................1
1.2 用途及特点..............................................................................................................1
2.方案选择及论证 ............................................................................................................2
2.1 设计方案..................................................................................................................2
2.2 方案论证..................................................................................................................2
2.3 所用器材..................................................................................................................3
3.硬件系统说明 ................................................................................................................4
3.1 硬件设计思路..........................................................................................................4
3.1.1 液位检测模块....................................................................................................4
3.1.2 温度设定模块...................................................................................................5
3.1.3 温度检测模块...................................................................................................6
3.1.4 加热器控制模块...............................................................................................6
3.1.5 系统的整体框图...............................................................................................7
3.2 系统构成框图..........................................................................................................7
3.3 芯片选择..................................................................................................................8
3.3.1 8259A 芯片 .......................................................................................................8
3.3.2 8279 芯片..........................................................................................................9
3.3.3 8253 芯片........................................................................................................10
4.软件系统说明 ..............................................................................................................12
4.1 软件设计思路........................................................................................................12
4.1.2 接口电路的端口地址.....................................................................................12
4.1.3 各功能模块程序流程.....................................................................................12
4.2 源程序清单............................................................................................................15
总结 .................................................................................................................................21
致谢 .................................................................................................................................22
参考文献 .........................................................................................................................23
