关键词: 单片机, 8279芯片, Proteus, 硬件电路

Abstract:

The paper introduces the teaching demonstration board design by 80C51 SCM.The chip 8279 with keyboard control and display functions is used to achieve the functions of the keyboard selection,clock display and light-emitting diode display corresponding P1 input.And the board achieves the Analog-digital conversion function with the demonstration board circuit schematics and software flow chart given.Based on Proteus simulation experiments,debugging of the various functions of the demonstration board is performed.Experiments show that compared with other single-chip teaching demonstration board,the proposed board has simple structure,and specialized functions,and is easy to learn and understand.

Key words: SCM;8279chip;Proteus;hardware circuit