MATLAB 程序,单片机采样后将数据由RS232上传到PC, 由MATLAB截获并画图, 实现示波器功能

philiph单片机P89LPC936经A/D采样后的数据，通过串口向外发送，包含此款单片机的端口设置和A/D，UART口的设置等,philiph MCU P89LPC936 through A/D sampled data, send out through the serial port, including port settings and Cikuan microcontroller A/D, UART port settings, etc.

256点FFT函数，量化阶输出，用查表方式实现，用凌阳单片机可以进行8khz采样，频谱分析等-256-point FFT function, the quantized step out, be achieved using look-up table, with a single chip can be 8khz Sunplus sampling, spectral analysis