In this paper we present a VHDL-based design methodology which we adopted in the design of an ASIC chip for real time image analysis in a quality control industrial environment. The design methodology is based on the following considerations: i) we explored the design space by applying some high level transformations on the VHDL speci cations; ii) we de ned some VHDL structural modeling (and de...

This paper gives a survey of principal simulation methods for digital circuits and systems when the hardware description language VHDL is used. The construction of a VHDL program and the usual modelling procedures of digital components and signals will be pointed out. Afterwards the description of structure and behavior of digital systems in VHDL will be explained. After having described severa...

In this survey, we prove that the Universal Verification Methodology, UVM, is not only efficient in verifying large-gate-count IP-based System-on-Chip designs, but it is also efficient in verifying small designs, in comparison with the conventional verification techniques, specifically VHDL testbenches. We have built both a UVM verification environment and a VHDL test-bench to verify the operat...

We show how to build generic DEVS models to facilitate simulation of mixed signal Hardware Description Language models within a DEVS simulator. We present the models required, and the conversion procedures for a subset of VHDL called sAMS-VHLD. Hierarchical models written in sAMS-VHDL that utilize Processes, Signals and Simultaneous Statements are be simulated in the CD++ toolkit by elaborating...

This paper presents a simulation of sigma-delta A/D converter using mixed signal environment and compares the accuracy achieved by mixed signal modeling environment over normal simulators, the converter designed here is of third order, we also analyzed the behavior of the converter the complete simulation is performed using Simplorer VHDL– AMS simulator in which codes are written in VHDL–AMS la...

This thesis details the development of an Orthogonal Frequency Division Multiplexing (OFDM) reference design system based off of the IEEE 802.16-2004 OFDM PHY standard. This system consists of a separate transmitter and receiver and has been implemented in VHDL for use on the Kansas University Agile Radio (KUAR). The KUAR is an experimental software-defined radio platform that is intended for r...