数据采集卡的设计.docVIP

数据采集卡设计 学生姓名 周钢基 目 录 摘要 2 开题报告 4 第一章 系统的概述 5 1.1 数据采集卡的功能 5 1.2 数据采集卡的体系结构 5 1.3 各部分功能介绍 6 第二章　原理介绍 7 2.1 松翰单片机---SN8P2705A 7 2.2 外围电路设计 8 2.2.1模拟量采集电路 9 2.2.2温度采集电路 10 2.2.3开关量采集电路 10 2.2.4显示电路 11 2.2.5复位电路 12 2.2.6振荡电路 13 2.2.7同步通信 14 第三章　数据采集卡软件设计 15 3.1主程序的设计 15 3.2 模拟量的采集程序设计 16 3.3开关量的采集程序设计 17 3.4.开关量显示程序设计 19 3.5.定时器中断服务程序的设计 20 3.6显示处理程序设计 22 3.7同步通信程序设计 24 第四章　调试心得 27 4.1 调试过程 27 4．2调试心得 27 结论 28 致 谢 29 参考文献 29 附录1 30 附录2 31 摘 要 文章全面的介绍了一个多路数据采集系统的设计过程、方法以及该系统的硬件构成，并且在实验过程中编制了相应的控制程序。在文章的开始部分介绍了数据采集有关的背景资料，随后详细介绍了多路数据采集的总体设计思路，阐述了测控前端和上位机电路的设计过程，采用模块化设计方法，将多路数据采集分为三大模块：数据的采集、数据的传输和数据的处理。分别完成各个模块的电路设计，再综合起来完成了总体电路的设计。在整个采样过程中，MCU负责全面的控制工作。，。Abstract An article comprehensive introduction multi　channel data　acquisition system design process, method as well as this system　hardware constitution, and has established the corresponding　correspondence and the control procedure in the experimental process.　Partially introduced in the article start the data acquisition related　background material, afterwards in detail introduced the multi　channel　　　　data acquisition system design mentality, elaborated the main engine　and from machine the electric circuit design process, uses the modular　design method, divides into the multi　channel data acquisition three　big modules: Data gathering, data transmission and data processing.　Separately completes each module the circuit design, again synthesized　has then completed the overall electric circuit design. In the entire　sampling process, MCU is responsible for the comprehensive control　work, between the main engine and the sampling electric circuit does　not need any line. Before the main engine so long as must complete the　duty forming standardization instruction, starts in each sampling　completely to issue from machine. But its data only can send out, but　may not directly transmit the data to give the main engine the port.　From machine the status is passive