High-Visibility Debug-By-Design for FPGA Platforms

Abstract

The true measure of a general-purpose FPGA platform is user design productivity, not just raw hardware performance. User productivity is a function of several interdependent components of the design environment: system firmware, simulation models, debugging support, device drivers, APIs and so forth. The careful, coordinated design of these components determines the level of debugging visibility and, ultimately, the ease of development for the end user. This paper examines the innovative aspects of the development of the SLAAC FPGA platforms and programming environment. Several novel techniques are presented, including circuit designs for transparent clock stepping and host access to on-board memories; device driver strategies and a "register compiler" to ease the design and testing of the hardware-software interface; and a co-simulation approach for advanced debugging of firmware, device drivers and user applications.

Application of Adaptive Fuzzy Filter in Ultrasonic Test System

“…It illustrated that the test curve has good convergence and high precision. It indicates that adaptive filter can get better effective for ultrasonic test [5] . Fuzzy control improves the performance of LMS algorithm and resolves the contradiction between convergence velocity and fixed step factor.…”