基于PICl8F4620的信号发生技术研究

摘要

波形信号发生器是一种常见的信号源，广泛的应用在高职高专、普通高校的理工科基础实验中。目前使用的波形信号发生器大部分是利用51单片机及其相关电子电路组成，体积较大、产生的波形类型较少且准确度较低。而采用PICl8F4620单片机设计的信号发生器，可以产生方波、三角波、锯齿波和正弦波等四种波形，在完全能够满足理工科的基础实验信号需求的同时，对波形的周期、频率等关键参数具有数字化和在线调整等优点。%Wave signal generator is a common generator and widely applied in the science basic experiments of advanced colleges and universities. At present, most wave signal generators axe made up of 51 single chip and relevant electronic circuit. Its disadvantages are big volume, less types of wave pattern and low accuracy. However, the signal generator which applies PIC18F4620 single chip can generate square wave, triangle wave, saw tooth wave and sine wave. To the two key parameters, it is digital.