Graphical block-diagram based programming environment for a DSP silicon compiler

摘要

The paper presents a graphical block-diagram based programming tool, which is a new software development system for digital signal processing (DSP). This system provides a block-diagram editor; therefore, the DSP system can be easily built by connecting functional blocks as described in the signal-flow graph. A block library is set up, which includes basic signal processing functions and some frequently used high level signal processing functions like FIR, IIR, FFT, etc. A friendly graphic user interface (GUI) based on the 'X-Window' system is developed to support each design step. Users can then improve their design easily according to the GUI's response. To guarantee the correctness of the circuits designed, the debugging and verifying capabilities are embedded in our system. The full system is combined with a structural silicon compiler, which we developed previously. Several designs will be illustrated as examples. It has been shown that this tool will be suitable for DSP system design by using a silicon compiler.