This article has studied based on the VC++6.0 serial port correspondence programming technology, designed and has realized one based on the microcomputer and the monolithic integrated circuit serial port communication data acquisition display system. The paper first specifically introduced this system's hardware part, is mainly the 89C51 monolithic integrated circuit system (including serial port communication interface circuit and A/D switching circuit); The monolithic integrated circuit electric circuit realizes the function is transmits the exterior 8 input analogue voltage value through the serial port to the computer. Then elaborated system's software design in detail, including monolithic integrated circuit system's assembly language programming and VC++6.0 programming entire process (including contact surface design, display system as well as data reduction program); Finally gave has carried on the preliminary test data and the result to the system, had indicated system's design and the debugging has served the anticipated purpose and the request basically .
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