Methodical aspects are described to develop VHDL models of field bus systems. Field bus systems used in automatic control engineering are examples of distributed computing systems. Modelling of such a system is demonstrated with a Controller Area Network (CAN). The consideration ranges from the process to the control devices. Targets are functional verifications as well as performance predictio...

This paper describes STEVE, a syntax-directed editor for VHDL, which uses auto-completion and automatic template insertion to accelerate the entry of syntactically correct VHDL models. It is part of a larger project, VIDE, which integrates textual and graphical tools for HDL design entry. STEVE extends the SAVANT intermediate representation to deal with representation of templates and the onscr...

This report describes a method for and the results of an analysis of cholesterol and phospholipids in HDL2 and HDL3 and phospholipids in VHDL (d.>L 210) of patients with cerebral thrombosis, myocardial infarction and diabetes mellitus. After precipitation and elimination of LDL (low density lipoprotein) and VLDL (very low density lipoprotein) by Na phosphotangstate (NaPhT) and MgC12 and bringin...

This paper proposes a new testability analysis and test-point insertion method at the register transfer level (RTL), assuming a full scan and a pseudorandom built-in self-test design environment. The method is based on analyzing the RTL synchronous specification in synthesizable very high speed integrated circuit hardware descriptive language (VHDL). A VHDL intermediate form representation is f...

In this paper we present a family of Mixed-signal (mixed analog/digital) synthesis tools being developed at the University of Cincinnati. The VASE (VHDL-AMS Synthesis Environment) project involves the development of a vertically integrated synthesis environment centered around the emerging VHDL-AMS standard for specification of analog and mixed signal systems. The unique contributions of this r...

In this paper we present SAMSA, a new tool for the simulation of VHDL-AMS systems in Matlab. The goal is the definition of a VHDL framework in which analog/digital systems can be designed and simulated and new simulation techniques can be studied, exploiting both the powerful Matlab functions and Toolboxes.

In order to improve the precision and surface quality of Electrical Discharge Machining (EDM), the paper studies the application of complex programmable logic device (CPLD) used in pulse power for EDM, according to the characteristics of the device, using VHDL language input and schematic input method to design control circuit for EDM pulse power. Keyword: EDM; CPLD; VHDL language; pulse power

Serum lipids, lipids (cholesterol, triglycerides and phospholipids) and apo-A in d.>1. 063 fraction, HDL2, HDL8 and VHDL of 10 normal subjects and 34 patients with chronic liver diseases (chronic aggressive hepatitis 2A and 2B, and liver cirrhosis in the compensated and decompensated stages) were analyzed. The analysis of d.>1. 063 and its subfractions (HDL2, HDL8 and VHDL) was achieved by rela...

The objective of this project is to develop a Programmable Frequency divider design for multi GHz PLL System implementation on FPGA using VHDL (hardware description language). The frequency divider architecture features 6 parallel divider chains, each one of them implementing a single division ratio. The desired frequency division ratio is then selected using the four control bits of an output ...

In this paper, a tool developed to help in the VHDL design flow of complex systems on silicon is presented. This tool aims to help designers and Project Managers to improve the quality of their VHDL based designs. The tool includes functions oriented towards design management and also functions to analyse the quality of the VHDL descriptions from different points of view. These functions togeth...