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Author's Latest Posts


The Hardest Part Of DO-254 Is…


The hardest part of DO-254 is not the requirements. It’s not the design. It’s not the verification. We just wrapped up this year’s 3-day DO-254 Practitioner’s Course, and each year I learn something new. In this year’s training we had attendees from major aerospace companies including Curtiss Wright, Rolls Royce, Sierra Nevada Corporation, Thales and Woodward. It’s always a pleas... » read more

The Problem With CDCs


Part of the Planning Process in DO-254 is knowing the appropriate FPGA tools and capabilities that you need and intend to use for your FPGA design. Particularly if your FPGA device operates with multiple asynchronous clocks which necessitates using advanced verification techniques targeting anomalies related to clock domain crossings (CDCs). Typical electronic design automation (EDA) tools f... » read more

Developing High-Reliability FPGAs For DO-254


You have been developing FPGAs for a long time, and you know your designs from top to bottom. You know every interface protocol, configuration and optimization. You can visualize your timing diagram like you can visualize your upcoming vacation in Hawaii. You can manually write down your memory mapping accurately while under oath. You can pinpoint all CDC paths and emulate metastability in your... » read more