Design of multifunction Signal generator
ABSTRACT
Being a main branch of micro-computer and by its advantage of its much higher ratio of property to price the Single-Chip Micro-Computer (SC MC),since it has been invented up to now ,has attracted more and more engineers and technicians to pay their attentions to its application field.
This article introduces the design process of applying Single-chip Micro-computer to control the multifunctional signal generator．The system is based on the single chip microcomputer of low power and 8•bit SCMC—87C51 and is equipped with corresponding outside equipment and interface circuit．It is developed by complication language and makes up a multi—frequency signal—generating system．The system uses SCMC to control and generate different kinds of signal wave form，such as sine wave form，triangle wave form，square wave form，the teeth of saw wave form and so on．The amplitude of signal generated by generator can be adjusted continuously．This system can be used not only in teaching experiments but also as basic signal—generating equipment．It is very useful in different areas in reality．
Key words： signal—generator；multifunction；single—chip micro-computer
