Download Applied Formal Verification by Douglas L. Perry, Harry Foster PDF

By Douglas L. Perry, Harry Foster

Formal verification is a strong new electronic layout strategy. during this state-of-the-art educational, of the field's top identified authors group as much as exhibit designers easy methods to successfully observe Formal Verification, in addition to description languages like Verilog and VHDL, to extra successfully remedy real-world layout difficulties.

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Proving equality between these various design representations has historically been a challenge. , a gate-level model. Consequently, the gate-level representation became the golden model of the design and was used for functional verification, timing analysis, and other forms of physical verification. However, this approach failed to clearly distinguish between functional and physical verification, thus impeding the overall verification flow. In an alternative approach, the design team maintains the RTL representation as the golden model during functional verification.

While FPGA-based processors might run at 100 to 150 MHz, processorbased accelerators might run at 800 MHz to 1 GHz or more. Compile times are relatively fast even for very large designs. 8 ASIC Processor-Based Accelerator ASIC1 ASIC2 ASIC3 ASIC4 ASIC5 ASIC6 ASIC7 ASIC8 ASIC9 accelerators execute much faster than other hardware accelerators, typically reaching speeds of 100,000 to 500,000 clocks per second. This speed allows tests that took hours to run on an HDL software simulator to run in seconds.

The designer must develop stimulus and expected results for all possible modes of operation for a particular design. As design complexity increases, the number of possible input scenarios increases dramatically. A sample design process is shown in Fig. 5. In this process the designer will create a design specification from which the HDL design code is written. After the HDL code has been written, the designer will create some simple tests to verify that the design behavior matches the expected functionality.

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