基于FPGA的多功能函数信号发生器：基于FPGA实现直接数字频率合成，该函数信号发生器可以实现正弦波、三角波、方波、锯齿波等多种波形输出，输出信号的频率和幅度可调，利用单片机完成整个电路的时序控制、数据处理和实时显示输出。-Based on FPGA multi-purpose function signal generator: based on FPGA realizing direct digital frequency synthesis, this function signal generator can realize sine wave, triangle wave and square-wave, sawtooth wave etc. Various waveform output, the output signal frequency and amplitude can be adjusted, using single-chip commputer completes the whole circuit sequential control, data processing and real-time display output.