基于msp430f2252的函数发生器设计

上传者: qwqaqwqa456 | 上传时间: 2021-05-12 16:23:37 | 文件大小: 5.11MB | 文件类型: ZIP
本系统采用MSP430F149单片机为控制核心,利用单片机内置的DA芯片,通 过按键中断来逻辑选择要输出的波形(正弦波、方波、三角波、锯齿波),再设置 其它键来控制波形的幅值及频率,然后通过单片机控制显示到LCD1602上。 波形的产生是通过MSP430单片机执行某一波形发生程序,向D/A转换器的输 入端按一定的规律发生数据,从而在D/A转换电路的输出端得到相应的电压波形。 在MSP430学习板的键盘按键,通过软件编程来选择各种波形、幅值电压和频率, 按不同按键产生不同波形的信号。此方案的有点是电路原理比较简单,实现起来 比较容易。

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