A real-time digital signal processing evaluation system
W. Vance McCollough, Diane M. Knight, David Erickson, Raymond A. Jannsen · The Journal of the Acoustical Society of America · 1985
This presentation will describe a test-bed processing system which is based on four serially connected Texas Instruments TMS-320 signal processors. Programs can be developed using standard TI development tools, and loaded into the test-bed processor for execution. Any one of the processors can be replaced by the TI EVM in-circuit emulator, for more flexibility in algorithm testing and development. A variety of status, control, and interrupt inputs and outputs are provided to interface the processors to each other and to external devices. Built-in A/D and D/A converters provide ports for data acquisition and output, and can be synchronously clocked from external sources. Digital data can also be input and output—the digital output port can directly interface to a line scan recorder. The primary uses for the test-bed processing system are to test software and algorithms on real data and in a realistic hardware environment, and as a laboratory tool to analyze experimental data. An example will be discussed which shows how the test-bed processor has been used in the above ways to evaluate a correlation processor, and to process experimental data.