Using modelsim (free version) for developing and coding. And using this when you needed to do extensive testing (since modelsim has simulation speed restrictions on its free version).

Hitachi customers can now use both ModelSim VHDL and Verilog as sign-off simulators. Using ModelSim's mixed-language simulation capability, Hitachi customers now only need a single simulator to ...

At the performance and integration levels of the Xilinx next generation Virtex (TM)-II FPGAs, design reuse has become a standard practice in the design process that requires a simulation tool capable ...

Designed circuitry based on requirements and wrote VHDL hardware language to build a system with finite state machine and data path to implement a Roulette game engine in the DE2-115 board; Built test ...

Fortunately we can now rely on an abundant variety of tools which make the things orders of magnitude simpler than they were in a not so far past, allowing even to a single person to develop a CPU; ...

Mentor Graphics has traditionally held the lead in mixed-language simulation because the claim to fame of Mentor’s ModelSim simulator (now Questa) is that it does Verilog and VHDL simulation from a ...

Wilsonville, Ore.-based Model Technology, a Mentor Graphics company, today releases ModelSim 5.5, a new version of its HDL simulation tool to be used for multimillion gate ASIC and FPGA designs.

In this paper the authors describe the design of UART (Universal Asynchronous Receiver Transmitter) based on VHDL. As UART is consider as a low speed, low cost data exchange between computer and ...