David Ljung Madison Stellar Email & Phone Number

Santa Clara, Ca

NVidia pays me to break things.I am working on the world state-of-the-art for random code generators.

San Francisco Bay Area

Worked for a variety of companies in the CPU and tools world.

San Jose

Verified secure communications between apps/device and an embedded SoC running a custom Linux on a custom CPU

San Jose, Ca

Managed verification for a complex, fully-custom processor under a very tight scheduleCreated complete toolchain and testbenches for entire CPU verification process, from block level to full-chip to SOC.Created highly sophisticated test packer/generator for VLIW CPU

Santa Clara, Ca

Created the complete verification environment for an entirely new novel VLIW architecture including a powerful random code generator that found the majority of our bugs. Chip was functional on first tapeout.https://davesource.com/Successes/Fullchip-New-Architecture/

Mountain View, California, United States

Contract work for Jasper doing a variety of tasks over a variety of years.

Created cycle-accurate models (verilog, perl, scheme) of blocksWrote pseudo-directed random test generators (verilog, scheme).Due to original formal verification techniques on blocks, all bugs were found pre-silicon.http://davesource.com/Successes/Formal-Blocks/

In charge of initial verification of the execute half of SR1/Montage CPU:Designed modular verilog/PLI testbench for blocks/fullchip, verified blocksCreated majority of verification tool environment.

Fort Collins, Co

Post-silicon debug/tools:* Created entire post-silicon tool chain from scratch (except for existing random code generators), including boot code and test framework, controller/environment scripts, shmoo scripts, fail search/eval, etc..* Hardware environmental testing and debug software* Finding and debugging failuresPre-silicon verification:* Random code generators, test creation* Test checkers and evaluators* Tools writerOther duties:* Lab Resource: Unix, programming, scripting..* Tool geek (wrote CAD tools, personnel tools, etc..)