Interactive Dsp Debugging in the Multi-Processor Huron Environment

This paper describes a DSP application development platform. The Lake DSP “Huron” hardware platform is a Miaosofi Windows-based Digital Signal Processing (DSP) system designed primarily for professional audio applications. “Huron” contains a 256 channel digital audio bus running at audio sample rates (nominally 48kHz). External audio signals are interfaced to the system by input and output modules which plug into an I/O card. Multiple DSP cards can be added to the system, each with four processors, SUM, DRAM, and inter-processor communication facilities. A development and debugging system integrated with Lake application software has been developed for this platform. The development environment consists of an object oriented Host Interface Library, an object oriented Debug Library, and a debugger application (LakeMon). The same debug environment can be used to debug DSP firmware when no host application software has been written, right through to the observation and debugging of a complete GUl-driven application.