首页 基于51单片机的信号发生和测量(D/A、A/D转换)

基于51单片机的信号发生和测量(D/A、A/D转换)

上传者： s1174670658 | 上传时间： 2025-05-06 21:48:10 | 文件大小： 228KB | 文件类型： ZIP
1、信号发生器（D/A转换实验） 利用DAC0832产生可产生锯齿波，三角波。利用开关状态进行选择所需要输出的波形。 开关闭合：利用DAC0832产生0~5V的锯齿波，用两位数码管进行显示电压值（精确到小数点后1位），同时利用示波器进行观察。 开关断开：利用DAC0832产生0~5V的三角波，用两位数码管进行显示电压值（精确到小数点后1位），同时利用示波器进行观察。 提示：假设0832工作在单缓冲方式，地址为0x7fff。 开关接至P1.0，P2.7接0832片选端CS，P3.6接WR1，DA0832的输出接两级运放后再接示波器显示波形。 2、信号测量（A/D转换实验） 将模拟信号接至ADC0809进行处理，产生的数字信号输出给单片机进行处理。 ① 利用电位器输出产生模拟信号。模拟信号接至ADC0809的通道0（IN0）。分别设计查询和中断程序不断采集电位器输出的模拟电压值，将A/D转换的结果通过P1口连接的8个LED显示出来。（用外中断0） ② 定时数据采集程序设计：用T0定时5秒采集一次通

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