Msp430-based Intelligent Control Module Design And Research

So far, many universities uses data collecting cards which are based on standard PCbus for laboratory process control teaching, all these cards have to be inserted into hostcomputer when using. It is very much inconvenient to dismantle installation repeatedly inlab teaching cases, and this kind of board card will be cut off if the trouble of thecomputer system occurs, because it doesn't have the ability of dealing independently, sothat the safe performance is not good enough. At the same time, it does not have foreigncommunication interface, so it can't carry on networked experiment. In order to facilitatelab teaching, strengthen labware construction, improve the security of control, and meetthe networked experiment demand, the thesis puts forward and designs one kind ofintelligent measure and control module which have CPU and foreign communicationinterface and does not need to insert the computer. The module wants data collecting,data processing and data communication capacity with initiative, and can carry onnetworked experiment.According to the function demand for the module, and considering the lowconsumption and miniature development trend in module design at present, the thesisselects MSP430F149 as the MCU of the intelligent module. After the completion of thebasic hardware and software designing, the thesis transplants theμC/OS-Ⅱreal-timesystem kernel into the intelligent module, in order to utilize CPU more effectively andrealize multitask management ability.By reading a large amount of relevant materials and based on the accumulation ofpast designing experience, the thesis uses Prote199SE to finish the design of the hardwarecircuit, uses IAR Embedded Workbench 3.41 to design C language for the intelligentmodule,uses IAR Embedded Workbench 3.41 as the developing instrument to transplantμC/OS-Ⅱinto the intelligent module. Finalty, using the intelligent module and laboratorycomprehensive proecess control object to form a single-loop water-level control system,and designing the PC control software by VC++6.0.The experimental result proved that: the designing of the module is correct, theperformance of the module is reliable, so it can meetthe designing requirement of thelaboratory experimental system.