DirectDSP software can be called from MATLAB programs. This Library contains a number of hardware-related functions that can be of use to MATLAB programs concerned with data acquisition or DSP. Low-level functions include onboard DSP control, download of DSP chip program files, onboard memory transfer, register and digital I/O access, sampling rate control, analog I/O parameter control, and DSP code configuration. High-level functions include waveform file acquisition, waveform file playback, continuous function generation, digital oscilloscope, spectrum analyzer, stimulus & response, and more. Over 70 types of DSP/analog hardware types can be accessed from MATLAB.