Design of a Muti channel Data Collecting System Based on MSP430 Single Chip Computer
Abstract: A muti channel data collecting system with MSP430 single chip as kernel is introduced. In this paper introduces the design and implementation methods of muti channel data acquisition systems，it also discusses a few problems of data acquisition system design in detail, and the operational principle, main features, the design of hardware circuit, the design of software program are expounded in detail, is a data-collecting system with complete functions，A sine wave frequency signal which is generated by integrated circuit ICL8038 is transformed into a voltage signal ,and the signal is used to be collected by a single chip. The single chip can communicate with computer and answer the instruction from computer，and the single chip is mainly used to collect 7 channel data ,process the data and control the display. Consumer can control the system and select the mode of data collecting by computer. A muti channel data collecting device which can collect data and display in real time is designed and realized. The system has these merits such as simple hardware, higher precision and lower power, so it has value of spread and application.
Keywords: MSP430; ICl8038; LM331; serial port communication
