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Efficient testbench code synthesis for a hardware emulator system

Papaefstathiou Ioannis, Mavroidis I.

Πλήρης Εγγραφή

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Περίληψη

The rising complexity of modern embedded systems is causing a significant increase in the verification effort required by hardware designers and software developers, leading to the "design verification crisis ", as it is known among engineers. Today's verification challenges require powerful testbenches and high-performance simulation solutions such as Hardware Simulation Accelerators and Hardware Emulators that have been in use in hardware and electronic system design centers for approximately the last decade. In particular, in order to accelerate functional simulation, hardware emulation is used so as to offload calculation-intensive tasks from the software simulator. However, the communication overhead between the software simulator and hardware emulator is becoming a new critical bottleneck. We tackle this problem by partitioning the code running on the software simulator into two sections: the testbench HDL (hardware description language) code that communicates directly with the design under test (DUT) and the rest C-like testbench code. The former section is transformed into synthesizable code while the latter runs in a general purpose CPU. Our experiments demonstrate that the proposed method reduces the communication overhead by a factor of about 5 compared to a conventional hardware emulated simulation

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