【摘要】 以AT8 9C5 1单片机为核心 ,外部扩展非易失性数据存储器RAM、键盘显示接口芯片 82 79、D/A等电路 ,应用ICL 80 38函数发生器芯片及其他外围电路设计了产生正弦波、方波、三角波及任意波形的智能程控波形发生器 .采用系统D/A转换方法和ICL80 38函数发生器芯片生成正弦波、方波和三角波 ,并利用 4× 4键盘的编辑功能和软件拟合形成三种波形线性组合和对任意波形的编辑生成更多还原

【Abstract】 In this paper, the program_controlled signal generator is described. It’s mainly composed of AT89C51、ICL8038、DAC1230、8279 and the nonvolatile data memory. The different frequent sine wave、square wave and triangle wave are generated by the voltage_controlled oscillator ICL8038 and its external circuit. By utilizing the software and editing function of the 4×4 keyboard, the three signal’s linearity combination and facultative signal can be generated by this generator.更多还原