Pre-Silicon to Post Silicon Hillel Miller

18/01/2006

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Observations

• • Project A re-ran post-silicon tests in simulation environment to confirm that full functional and code coverage was achieved.

• Project B spent 10 man years developing random tests for the ADS environment.

In project C people are not prepared to listen about CDV verification when they spend all their effort in developing a direct regression suite that needs to be re-usable on ADS.

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Definition

•Taking an existing subset of the pre-silicon (simulation) verification environment and run it within the post silicon environment. •Includes • • • • • • Direct tests written in c/asm.

Random Stimulus generation Data Checking/Post processing.

Coverage.

Interface generators.

FPGA/Emulators.

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Motivation

•

Microcode verification

•

SW verification

•

Circuit Robustness

•

Schedule requires taping out with bugs.

•

Board Verification

•

Synchronization bugs

•

Corner cases

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Questions

Could be re-use? HOW?

Could be re-write? EFFORT?

What are the alternatives?

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