Download e-book for kindle: Applied Formal Verification: For Digital Circuit Design by Douglas Perry, Harry Foster

By Douglas Perry, Harry Foster

Meant for layout engineers, this e-book introduces common verification ideas, compares them with formal verification recommendations, and offers directions for growing formal excessive point requirement. The authors speak about formal verification options for either utilized Boolean and sequential verification, formal estate checking, the method of constructing a proper try plan, and nation relief innovations. The appendices record primary PSL statements for prime point requisites and comparable requisites laid out in procedure Verilog syntax.

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For example, the design intent is often specified in a natural language such as a requirements document. , a formal specification, a behavioral reference model, or even a selfchecking testbench). Janick Bergeron, in Writing Testbenches [Bergeron 2003], conceptually describes the verification process as a reconvergence model, where the verification of the various design transformations is reconciled back to a common source through a second reconvergent path. 1 demonstrates this concept. The upper path in the reconvergence model represents the transformation of the design intent into an RTL implementation.

Most designers will use a testbench with the ASIC hardware accelerator, but there are cases where connecting to the real hardware environment is possible. 4 HARDWARE EMULATION Hardware emulators were developed in the mid-1980s when FPGA devices finally were large enough to accommodate enough logic to make emulators feasible. FPGA devices are reprogrammable logic devices that configure their functionality based on a downloaded data stream. Usually on power-up an FPGA device will download the data stream into on-chip static RAM, as shown in Fig.

It is more likely that an emulator can be connected to the real hardware environment, but even at 1 million clocks per second, tests that need billions of clock cycles will still take a long time. The biggest impediment to the emulator is the excessive compile times, which greatly extend the debug cycle. 5 FPGA PROTOTYPING An FPGA prototype uses multiple FPGA devices to implement the design. The design is automatically or manually partitioned into blocks. These blocks are mapped using standard FPGA design software in standard FPGA devices.

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Applied Formal Verification: For Digital Circuit Design by Douglas Perry, Harry Foster

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