General digital signal generating system

The invention discloses a general digital signal generating system which comprises a D/A data conversion card and a signal generating system. The D/A data conversion card is connected with the signal generating system. The signal generating system comprises a parameter configuration module, a typical signal generating module, a self-defined signal data inputting module, a self-defined signal generating module, a graph drawing module and a D/A conversion module. The self-defined signal data inputting module is used for defining a signal data inputting mode and the self-defined signal data generating module is used for periodically generating self-defined signals according to data input by the signal data inputting mode. The graph drawing module draws signal waveforms generated by all channels in real time in a graph mode. According to the general digital signal generating system, voltage signals with multiple channels, multiple forms, the designated amplitude value and the period can be generated in parallel.