任意信号波形采样和频谱分析演示文件 ADC信号采样、RS232串行通信和频谱分析 增加ADC采样控制模块，接上ADC，即可把模拟信号采入PC机上显示，和相应的频谱分析。 -Arbitrary signal waveforms and spectral analysis of the sampling ADC signal sample presentation, RS232 serial communication and increase the ADC sampling freq